Location: Regional Office, Escondido, CA

Division: Perennial California Division

Employment Type: Full-Time

Salary: Depending on experience, starting at $100,000 per year

Position Summary

Perennial Environmental Services, LLC, a rapidly growing environmental consulting firm, is seeking a motivated and team-oriented Biological Resources Division Lead to join our Houston office full-time. We provide a wide range of environmental services to clients across the nation and are looking for someone who shares our core values of Community, Growth-Oriented, Integrity, Innovation, and Tenacity.

Perennial CA Division is seeking an experienced professional to establish and grow our Biological Resources Division. This is a unique opportunity to shape and lead a new division within the company. This position combines leadership, technical expertise, and client engagement to deliver exceptional biological consulting services.

Minimum Qualifications

• Strong background in biological resources and environmental consulting.
• Proven experience in project management and client relations.

Core Competencies

• Detailed oriented
• Analytical thinking and problem solving
• Data accuracy
• Collaboration with cross-functional teams
• Maintains accountability for deliverables through to final resolution
• Ability to manage sensitive and highly confidential information
• Ability to identify and manage competing priorities
• Ability to work independently and in a team environment
• Excellent communication and organization skills
• Strong interpersonal skills

Key Responsibilities

• Develop and expand Perennial CA Division’s Biological Resources Division.
• Manage and lead biological resource projects, managing budgets, tasks, schedules, and serving as project manager or technical lead.
• Lead and conduct U.S. Army Corps of Engineers (USACE) wetland/stream delineations and Clean Water Act (CWA) Section 404 permitting.
• Author technical reports and proposals related to biological resources.
• Supervise internal staff and biological subcontractors.
• Coordinate priorities across multiple team members and projects.
• Serve as primary point of contact for clients, including private entities and government agencies.
• Conduct client management activities such as status meetings and milestone check-ins.
• Maintain required state and county licenses/certifications for biological consulting services, including Riverside County and San Diego County.
• Lead biological surveys and reporting efforts, including jurisdictional waters permitting.
• Identify and pursue new business opportunities.
• Ensure timely resolution of issues to meet client needs.
• Work independently and collaboratively across multiple projects.

Additional Information

Initial workload will focus on establishing the division, managing existing projects, overseeing subcontractors, and assisting with proposal preparation.

What we Offer:

• Competitive compensation based on experience.
• Comprehensive benefits package for medical, dental, vision and more.
• 401k and a 4% match for all full-time eligible employees after 1 year of service.
• Flexible work schedule: eligible employees may have a hybrid schedule after 6 months of employment.
• Professional development opportunities.
• Collaborative and supportive team environment.
• Paid Time Off and Holiday Pay for eligible employees.
• Employee recognition and reward programs.

Our Culture

At Perennial, we foster a culture where all team members are empowered to take initiative, share ideas, and grow professionally. Our commitment to excellence and client satisfaction drives everything we do, while maintaining a positive and inclusive workplace. We rely on our Core Values as a cornerstone of how we run our business. We are a Community. We are Growth Oriented. We have Integrity. We encourage Innovation. We have Tenacity.

How to Apply

Interested candidates should submit a cover letter and resume in one document, labeled with the applicant’s name, to This email address is being protected from spambots. You need JavaScript enabled to view it., using the subject line “Biological Resources Division Lead Applicant”.

Please note: This position requires eligibility to work in the United States. Perennial Environmental Services does not sponsor visa applications for this position.

Perennial Environmental Services is an equal-opportunity employer. Qualified applicants will be considered for employment without regard to age, race, color, religion, gender, marital status, sexual orientation, gender identity, national origin, veteran, or disability status.

Location: Corporate Office, Houston TX

Division: Perennial Texas Division

Employment Type: Full-Time

Salary: Depending on experience, starting at $52,000 per year

Position Summary

Perennial Environmental Services LLC (Perennial), a rapidly growing environmental consulting firm, is seeking a motivated and team-oriented Entry-Level Environmental Specialist to join our Houston office full-time. We provide a wide range of environmental services to clients across the nation and are looking for someone who shares our core values of Community, Growth-Oriented, Integrity, Innovation, and Tenacity.

As an Entry-Level Environmental Specialist, you will play a crucial role assisting with data analysis and preparation of technical reports, environmental permit applications, and National Environmental Policy Act (NEPA) documentation. This position offers valuable practical experience in environmental permitting and compliance. Occasional travel (less than 10%) may be required based on project needs.

Minimum Qualifications

• Bachelor’s or Master’s degree in Environmental Science, Botany, Wildlife or Range Management, Forestry, Geology, Soil Science, or a related field.
• Familiarity with NEPA and federal environmental regulations.
• At least two years of experience in a professional environment (experience does not need to be in the environmental field).
• Proficiency in Microsoft 365 (Word, Excel, and PowerPoint).
• Relevant coursework including ecology, geology, biology, water resources/hydrology, and environmental law/policy.

Core Competencies

• Detailed oriented
• Analytical thinking and problem solving
• Data accuracy
• Collaboration with cross-functional teams
• Maintains accountability for deliverables through to final resolution
• Ability to manage sensitive and highly confidential information
• Ability to identify and manage competing priorities
• Ability to work independently and in a team environment
• Excellent communication and organization skills
• Strong interpersonal skills

What we Offer:

• Competitive compensation based on experience.
• Comprehensive benefits package for medical, dental, vision and more.
• 401k and a 4% match for all full-time eligible employees after 1 year of service.
• Flexible work schedule: eligible employees may have a hybrid schedule after 6 months of employment.
• Professional development opportunities.
• Collaborative and supportive team environment.
• Paid Time Off and Holiday Pay for eligible employees.
• Employee recognition and reward programs.

Our Culture

At Perennial, we foster a culture where all team members are empowered to take initiative, share ideas, and grow professionally. Our commitment to excellence and client satisfaction drives everything we do, while maintaining a positive and inclusive workplace. We rely on our Core Values as a cornerstone of how we run our business. We are a Community. We are Growth Oriented. We have Integrity. We encourage Innovation. We have Tenacity.

How to Apply

Interested candidates should submit a cover letter and resume in one document, labeled with the applicant’s name, to This email address is being protected from spambots. You need JavaScript enabled to view it., using the subject line “Entry-Level Environmental Specialist Applicant”.

Please note: This position requires eligibility to work in the United States. Perennial Environmental Services does not sponsor visa applications for this position.

Perennial Environmental Services is an equal-opportunity employer. Qualified applicants will be considered for employment without regard to age, race, color, religion, gender, marital status, sexual orientation, gender identity, national origin, veteran, or disability status.

Location: Corporate Office, Houston, TX

Division: Perennial Texas Division

Employment Type: Full-Time

Salary: Depending on experience, starting at $65,000 per year

Position Summary

Perennial Environmental Services, LLC (Perennial), a rapidly growing environmental consulting firm, is seeking a motivated and team-oriented FERC/NEPA Junior Project Manager to join our Houston office full-time. We provide a wide range of environmental services to clients across the nation and are looking for someone who shares our core values of Community, Growth-Oriented, Integrity, Innovation, and Tenacity.

In this role, you will manage a variety of energy infrastructure projects, with a focus on those regulated by the Federal Energy Regulatory Commission (FERC). You will oversee the preparation of critical documentation for National Environmental Policy Act (NEPA) compliance, including environmental permit applications, resource reports for small FERC 7(c) and prior notice projects, Environmental Assessments, and Environmental Impact Statements. Additionally, you will coordinate with clients to manage environmental schedules, budgets, data needs, and project scopes. This position also involves overseeing the preparation of federal, state, and local permit applications, including those for U.S. Army Corps of Engineers (Section 404) and threatened and endangered species (Section 7) approvals. Occasional travel may be required based on project demands.

Minimum Qualifications

• Bachelor’s or Master’s degree in Environmental Science, Botany, Wildlife or Range Management, Forestry, Geology, Soil Science, or a related field.
• Minimum of two years of experience with FERC resource report preparation and/or NEPA compliance.
• Experience interacting with clients and serving as an assistant project manager or project manager.
• Knowledge of relevant federal and state environmental permitting regulations.
• Proficiency in Microsoft 365 (Word, Excel, and PowerPoint).
• Relevant coursework includes ecology, geology, biology, water resources/hydrology, and environmental law/policy.

Preferred Qualifications

• Experience with Deltek VantagePoint Preferred.

Core Competencies

• Detailed oriented
• Analytical thinking and problem solving
• Data accuracy
• Collaboration with cross-functional teams
• Maintains accountability for deliverables through to final resolution
• Ability to manage sensitive and highly confidential information
• Ability to identify and manage competing priorities
• Ability to work independently and in a team environment
• Excellent communication and organization skills
• Strong interpersonal skills

What we Offer:

• Competitive compensation based on experience.
• Comprehensive benefits package for medical, dental, vision and more.
• 401k and a 4% match for all full-time eligible employees after 1 year of service.
• Flexible work schedule: eligible employees may have a hybrid schedule after 6 months of employment.
• Professional development opportunities.
• Collaborative and supportive team environment.
• Paid Time Off and Holiday Pay for eligible employees.
• Employee recognition and reward programs.

Our Culture

At Perennial, we foster a culture where all team members are empowered to take initiative, share ideas, and grow professionally. Our commitment to excellence and client satisfaction drives everything we do, while maintaining a positive and inclusive workplace. We rely on our Core Values as a cornerstone of how we run our business. We are a Community. We are Growth Oriented. We have Integrity. We encourage Innovation. We have Tenacity.  

How to Apply

Interested candidates should submit a cover letter and resume in one document, labeled with the applicant’s name, to This email address is being protected from spambots. You need JavaScript enabled to view it., using the subject line “FERC/NEPA Junior Project Manager Applicant”.

Please note: This position requires eligibility to work in the United States. Perennial Environmental Services does not sponsor visa applications for this position.

Perennial Environmental Services is an equal-opportunity employer. Qualified applicants will be considered for employment without regard to age, race, color, religion, gender, marital status, sexual orientation, gender identity, national origin, veteran, or disability status.

Location: Corporate Office, Houston, TX

Division: Perennial Texas Division

Employment Type: Full-Time

Salary: Depending on experience, starting at $50,000 per year

Position Summary

Perennial Environmental Services, LLC (Perennial), a rapidly growing environmental consulting firm, is seeking a motivated and team-oriented GIS Analyst to join our Houston office full-time. We provide a wide range of environmental services to clients across the nation and are looking for someone who shares our core values of Community, Growth-Oriented, Integrity, Innovation, and Tenacity.

The Geographic Information Systems (GIS) Analyst is responsible for creating, maintaining, and analyzing GIS data to support internal activities at Perennial and distributing data externally as needed. This role involves ensuring data quality, supporting web applications, and developing process automation to improve efficiency.

Minimum Qualifications

• Bachelor’s Degree in GIS, Geography, Computer Science, Environmental Studies or Urban Planning, and/or equivalent combination of education and work experience.
• Minimum of 2 years’ experience with Esri’s GIS software including ArcGIS Pro, Phyton, ArcToolbox and/or ArcMap.
• Excellent knowledge of Microsoft Office Applications
• Can work independently with limited supervision.

Preferred Qualifications

• GISP Certification
• Portfolio submitted with application

Core Competencies

• Detailed oriented
• Analytical thinking and problem solving
• Data accuracy
• Collaboration with cross-functional teams
• Maintains accountability for deliverables through to final resolution
• Ability to manage sensitive and highly confidential information
• Ability to identify and manage competing priorities
• Ability to work independently and in a team environment
• Excellent communication and organization skills
• Strong interpersonal skills

Key Responsibilities

Data Management

• Collecting, analyzing, and interpreting geographic information provided by geodetic surveys, aerial photographs, and satellite data.
• Maintain metadata and ensure accuracy, consistency, and integrity across layers and services.
• Prepare GIS data to fulfill requests made by consultants, internal staff, and the public. Presenting project results to clients, stakeholders
• Maintaining current knowledge of relevant technology and GIS-related trends

Application Support

• Troubleshoot and optimize published services in ArcGIS Online.
• Develop, maintain, and support interactive web map applications.

Process Automation

• Automate workflows using Python, ArcPy, ModelBuilder, and the ArcGIS REST API.
• Streamline repetitive tasks to improve efficiency and reliability.

Data Analysis

• Perform spatial analyses to support internal projects and decision-making.
• Assist with departmental projects and cross-functional initiatives.

Additional Expectations

• Work hours may vary based on business needs.
• Perform other duties as required to support the team and organization.

Additional Information

Finalists for this position will be asked to complete a specific GIS task as a part of the final interview process.

What we Offer:

• Competitive compensation based on experience.
• Comprehensive benefits package for medical, dental, vision and more.
• 401k and a 4% match for all full-time eligible employees after 1 year of service.
• Flexible work schedule: eligible employees may have a hybrid schedule after 6 months of employment.
• Professional development opportunities.
• Collaborative and supportive team environment.
• Paid Time Off and Holiday Pay for eligible employees.
• Employee recognition and reward programs.

Our Culture

At Perennial, we foster a culture where all team members are empowered to take initiative, share ideas, and grow professionally. Our commitment to excellence and client satisfaction drives everything we do, while maintaining a positive and inclusive workplace. We rely on our Core Values as a cornerstone of how we run our business. We are a Community. We are Growth Oriented. We have Integrity. We encourage Innovation. We have Tenacity.

How to Apply

Interested candidates should submit a cover letter and resume in one document, labeled with the applicant’s name, to This email address is being protected from spambots. You need JavaScript enabled to view it., using the subject line “GIS Technician/Analyst Applicant”.

Please note: This position requires eligibility to work in the United States. Perennial Environmental Services does not sponsor visa applications for this position.

Perennial Environmental Services is an equal-opportunity employer. Qualified applicants will be considered for employment without regard to age, race, color, religion, gender, marital status, sexual orientation, gender identity, national origin, veteran, or disability status.

Location: May be based in our Houston, Austin or Pittsburgh locations

Division: Perennial Texas Division

Employment Type: Full-Time

Salary: Depending on experience, starting at $75,000 per year 

Position Summary

Perennial Environmental Services LLC (Perennial), a rapidly growing environmental consulting firm, is seeking a motivated and team-oriented Air Quality Specialist/Engineer to join our Air Quality Team. We provide a wide range of environmental services to clients across the nation and are looking for someone who shares our core values of Community, Growth-Oriented, Integrity, Innovation, and Tenacity.

Perennial is seeking an early career scientist or engineer to join its new Air Quality team.  This full-time position will provide technical expertise in support of air quality permitting projects throughout the United States with a focus on the Gulf Region and the oil and gas industry.  This early career position may be based in our Houston, Austin or Pittsburgh locations.

Minimum Qualifications

• Bachelors in a science or engineering discipline with mastery of physical science material and skills from both education and career experience.
• Postgraduate professional experience in a relevant role in industry, consulting, or a United States environmental regulatory government agency (e.g. EPA, state environmental protection branch or similar).
• Expertise in developing and reviewing air emission calculations across multiple industry sectors and sources.
• Experience reviewing state and federal air quality regulations, including federal NSPS and NESHAPs.
• Experience with state and federal air quality permitting (e.g. FERC authorizations, Title V/PSD/NSR air permitting.
• Excellent problem solving and communication skills, with a demonstrable ability to manage uncertainty through independent problem solving, research, teamwork and communication as appropriate.
• Strong technical writing skills, including professional communications with internal and external stakeholders.
• Expertise in managing multiple assignments with the potential for shifting priorities and timelines.
• Excellent attention to detail.
• Travel up to 25% within the United States, including air travel.
• Ability to visit industrial facilities and active construction sites.

Preferred Qualifications

• PE or ability to acquire.
• Postgraduate professional experience with air pollution control device operation and engineering.
• Experience in a professional setting with AERMOD for regulatory requirements (e.g. NAAQS, PSD and/or toxic impact modeling assessments)
• Experience in a professional setting with MOVES.
• Experience developing state and federal greenhouse gas inventories and reports.
• Experience developing Resource Report 9 for the oil and gas industry.
• Experience personally managing projects in consulting.
• Expertise in LDAR auditing or surveys, stack testing and/or ambient monitoring.
• Experience with Texas and Louisiana air permitting.

Core Competencies

• Detailed oriented
• Analytical thinking and problem solving
• Data accuracy
• Collaboration with cross-functional teams
• Maintains accountability for deliverables through to final resolution
• Ability to manage sensitive and highly confidential information
• Ability to identify and manage competing priorities
• Ability to work independently and in a team environment
• Excellent communication and organization skills
• Strong interpersonal skills

What we Offer:

• Competitive compensation based on experience.
• Comprehensive benefits package for medical, dental, vision and more.
• 401k and a 4% match for all full-time eligible employees after 1 year of service.
• Flexible work schedule: eligible employees may have a hybrid schedule after 6 months of employment.
• Professional development opportunities.
• Collaborative and supportive team environment.
• Paid Time Off and Holiday Pay for eligible employees.
• Employee recognition and reward programs.

Our Culture

At Perennial, we foster a culture where all team members are empowered to take initiative, share ideas, and grow professionally. Our commitment to excellence and client satisfaction drives everything we do, while maintaining a positive and inclusive workplace. We rely on our Core Values as a cornerstone of how we run our business. We are a Community. We are Growth Oriented. We have Integrity. We encourage Innovation. We have Tenacity.

How to Apply

Interested candidates should submit a cover letter and resume in one document, labeled with the applicant’s name, to This email address is being protected from spambots. You need JavaScript enabled to view it., using the subject line “Air Quality Specialist/Engineer Applicant”.

Please note: This position requires eligibility to work in the United States. Perennial Environmental Services does not sponsor visa applications for this position.

Perennial Environmental Services is an equal-opportunity employer. Qualified applicants will be considered for employment without regard to age, race, color, religion, gender, marital status, sexual orientation, gender identity, national origin, veteran, or disability status.

Location: Corporate Office, Houston, TX

Division: Perennial Texas Division

Employment Type: Full-Time

Salary: Depending on experience, starting at $65,000 per year

Position Summary

Perennial Environmental Services LLC (Perennial), a rapidly growing environmental consulting firm, is seeking a motivated and team-oriented Mid-Level Environmental Permitting Specialist to join our Houston office full-time. We provide a wide range of environmental services to clients across the nation and are looking for someone who shares our core values of Community, Growth-Oriented, Integrity, Innovation, and Tenacity.

As a Mid-Level Environmental Permitting Specialist, you will play a crucial role assisting with data analysis and preparation of technical reports, environmental permit applications, and National Environmental Policy Act (NEPA) documentation. This position offers valuable practical experience in environmental permitting and compliance.

Minimum Qualifications

• Bachelor’s or Master’s degree in Environmental Science, Biology, Botany, Wildlife Management or Biology, Forestry, Ecology, or a closely related field.
• Familiarity with Endangered Species Act, Clean Water Act and other federal environmental regulations.
• Proficiency in Microsoft 365 (Word, Excel, and PowerPoint).
• Experience coordinating with agencies responsible for issuing environmental permits and clearances (e.g., U.S. Army Corps of Engineers, U.S. Fish and Wildlife Service, Louisiana Department of Energy and Natural Resources, etc.)
• Minimum of 3-5 years of experience in federal/state regulatory compliance to include 2 years of direct project management experience involving one or more of the following (preferably on energy sector projects) is required: National Environmental Policy Act compliance; Clean Water Act permitting and compliance; Conducting informal and formal consultations under the Endangered Species Act; and Section 106 of the Historic Preservation Act compliance.

Core Competencies

• Detailed oriented
• Analytical thinking and problem solving
• Data accuracy
• Collaboration with cross-functional teams
• Maintains accountability for deliverables through to final resolution
• Ability to manage sensitive and highly confidential information
• Ability to identify and manage competing priorities
• Ability to work independently and in a team environment
• Excellent communication and organization skills
• Strong interpersonal skills

Key Responsibilities

• Responsible for coordinating directly with various federal, state, and local agencies.
• Preparation and editorial review of various technical environmental reports and environmental permit applications.
• Directly involvement in consultations with our clients as well as federal, state, and local environmental agencies.
• Other duties as assigned.

What we Offer:

• Competitive compensation based on experience.
• Comprehensive benefits package for medical, dental, vision and more.
• 401k and a 4% match for all full-time eligible employees after 1 year of service.
• Flexible work schedule: eligible employees may have a hybrid schedule after 6 months of employment.
• Professional development opportunities.
• Collaborative and supportive team environment.
• Paid Time Off and Holiday Pay for eligible employees.
• Employee recognition and reward programs.

Our Culture

At Perennial, we foster a culture where all team members are empowered to take initiative, share ideas, and grow professionally. Our commitment to excellence and client satisfaction drives everything we do, while maintaining a positive and inclusive workplace. We rely on our Core Values as a cornerstone of how we run our business. We are a Community. We are Growth Oriented. We have Integrity. We encourage Innovation. We have Tenacity.

How to Apply

Interested candidates should submit a cover letter and resume in one document, labeled with the applicant’s name, to This email address is being protected from spambots. You need JavaScript enabled to view it., using the subject line “Mid-Level Environmental Permitting Specialist Applicant”.

Please note: This position requires eligibility to work in the United States. Perennial Environmental Services does not sponsor visa applications for this position.

Perennial Environmental Services is an equal-opportunity employer. Qualified applicants will be considered for employment without regard to age, race, color, religion, gender, marital status, sexual orientation, gender identity, national origin, veteran, or disability status.

Location: Corporate Office, Houston, TX

Division: Perennial Texas Division

Employment Type: Full-Time

Salary: Depending on experience, starting at $70,000 per year

Position Summary

Perennial Environmental Services, LLC (Perennial), a rapidly growing environmental consulting firm, is seeking a motivated and team-oriented Project Controls Specialist to join our Houston office full-time. We provide a wide range of environmental services to clients across the nation and are looking for someone who shares our core values of Community, Growth-Oriented, Integrity, Innovation, and Tenacity.

The Project Controls Specialist is responsible for supporting the planning, budgeting, scheduling, tracking, and reporting functions that ensure projects are delivered on time and within budget. This role works closely with project managers, technical staff, accounting, and leadership to prepare cost estimates, establish project budget and schedule baselines, analyze variances, and provide timely, accurate controls data to support decision-making. This position requires strong communication, attention to detail, analytical capability, and the ability to work in a fast-paced, multi-project environment.

Minimum Qualifications

• Bachelor’s degree in business, finance, management, or related field (or equivalent experience).
• 2–5+ years of experience in project controls, project accounting, scheduling, or PM roles.
• Strong Excel/financial analysis skills.
• Experience with project management systems (Deltek Vantagepoint, SAP, Oracle, Primavera, MS Project, etc.).
• Ability to interpret contracts, budgets, and financial data.
• Highly organized, detail-oriented, and able to manage competing deadlines.
• Strong communication skills and comfort working directly with PMs.

Preferred Qualifications

• Prior experience in engineering, construction, environmental consulting, energy or infrastructure.
• Experience working in Deltek VantagePoint.
• Strong communication skills and comfort working directly with clients.

Core Competencies

• Detailed oriented
• Analytical thinking and problem solving
• Data accuracy
• Collaboration with cross-functional teams
• Maintains accountability for deliverables through to final resolution
• Ability to manage sensitive and highly confidential information
• Ability to identify and manage competing priorities
• Ability to work independently and in a team environment
• Excellent communication and organization skills
• Strong interpersonal skills

Key Responsibilities

Project Planning & Setup

• Develop proposals and establish project budgets.
• Assist with project kickoff activities, including schedules, deliverable tracking, and subcontractor agreement development.
• Enter and maintain project data in ERP/PM systems (Deltek Vantagepoint).

Schedule & Progress Tracking

• Develop and maintain project schedules, timelines, and milestones.
• Track task progress and percent complete; update schedules accordingly.
• Identify schedule risks, delays, and impacts to critical path.

Cost Control & Forecasting

• Monitor and track labor, expenses, subcontractor costs, and overall project burn rates.
• Produce regular cost reports, variance analyses, and projections of estimate-to-complete (ETC) and estimate-at-completion (EAC).
• Invoice review including validation of time sheets and expense back up to ensure subcontractor billing aligns with project budgets.
• Support change order processes and update budgets when scope changes occur.

Reporting & Analytics

• Provide weekly, monthly, and ad-hoc reporting dashboards (budget vs. actual, KPIs, schedule performance, risks).
• Prepare financial summaries for leadership, PMs, and clients.
• Analyze trends and flag potential overruns before they occur.

Compliance & Documentation

• Ensure project records, files, and reporting comply with contractual requirements and internal standards.
• Creating SOPs for implementation of Project Controls.

Cross-Functional Support

• Coordinate closely with accounting, AP/AR, and subcontractors.
• Support invoice preparation, review, and reconciliation.
• Participate in project meetings and provide data-driven guidance to PMs.
• Serve as trusted resource merging the gap between Project Management and Accounting Requirements.

What we Offer:

• Competitive compensation based on experience.
• Comprehensive benefits package for medical, dental, vision and more.
• 401k and a 4% match for all full-time eligible employees after 1 year of service.
• Flexible work schedule: eligible employees may have a hybrid schedule after 6 months of employment.
• Professional development opportunities.
• Collaborative and supportive team environment.
• Paid Time Off and Holiday Pay for eligible employees.
• Employee recognition and reward programs.

Our Culture

At Perennial, we foster a culture where all team members are empowered to take initiative, share ideas, and grow professionally. Our commitment to excellence and client satisfaction drives everything we do, while maintaining a positive and inclusive workplace. We rely on our Core Values as a cornerstone of how we run our business. We are a Community. We are Growth Oriented. We have Integrity. We encourage Innovation. We have Tenacity.  

How to Apply

Interested candidates should submit a cover letter and resume in one document, labeled with the applicant’s name, to This email address is being protected from spambots. You need JavaScript enabled to view it., using the subject line “Project Controls Specialist Applicant”.

Please note: This position requires eligibility to work in the United States. Perennial Environmental Services does not sponsor visa applications for this position.

Perennial Environmental Services is an equal-opportunity employer. Qualified applicants will be considered for employment without regard to age, race, color, religion, gender, marital status, sexual orientation, gender identity, national origin, veteran, or disability status.

Location: May be based in our Houston, Austin or Pittsburgh locations, or may be remote

Division: Perennial Texas Division

Employment Type: Full-Time

Salary: Depending on experience, starting at $115,000 per year

Position Summary

Perennial Environmental Services LLC (Perennial), a rapidly growing environmental consulting firm, is seeking a motivated and team-oriented Senior Air Quality Specialist/Engineer to join our Air Quality Team. We provide a wide range of environmental services to clients across the nation and are looking for someone who shares our core values of Community, Growth-Oriented, Integrity, Innovation, and Tenacity.

Perennial is seeking a mid/senior career scientist or engineer to join its new Air Quality team. This full-time position will provide senior level technical and project management expertise in support of air quality permitting projects throughout the United States with a focus on the Gulf Region and the oil and gas industry.

Minimum Qualifications

• Bachelors in a science or engineering discipline with mastery of physical science material and skills from both education and early career experience.
• Postgraduate professional experience in a relevant role in industry, consulting, or a United States environmental regulatory government agency (e.g. EPA, state environmental protection branch or similar) with increasing responsibility.
• Expertise in developing and reviewing air emission calculations across multiple industry sectors and sources.
• Experience in the application of state and federal air quality regulations, including federal NSPS and NESHAPs.
• Experience developing state and federal greenhouse gas inventories and reports.
• Experience leading air quality permitting efforts (e.g. FERC authorizations, Title V/PSD/NSR, with specific experience in Texas and Louisiana.
• Experience in leading proposal efforts including budgeting for a range of air quality projects (compliance level efforts to major greenfield PSD/NSR capital projects).
• Experience in project budget management.
• Strong independent technical writing skills as demonstrated through the independent drafting of larger scoped applications.
• Expertise in managing multiple assignments with the potential for shifting priorities and timelines.
• Expertise in managing and mentoring junior staff at the project level.
• Travel up to 25% within the United States, including air travel.
• Ability to visit industrial facilities and active construction sites.

Preferred Qualifications

• PE or ability to acquire.
• Postgraduate professional experience with air pollution control device operation and engineering.
• Auditing experience in air or other environmental media.
• Experience in a professional setting with AERMOD for regulatory requirements (e.g. NAAQS, PSD and/or toxic impact modeling assessments)
• Experience in a professional setting with MOVES.
• Experience developing Resource Report 9 for the oil and gas industry.
• Expertise in managing and mentoring multiple junior staff at the line management level.
• Expertise in managing peers and senior staff at the project level.
• Experience with LDAR auditing or surveys.

Core Competencies

• Detailed oriented
• Analytical thinking and problem solving
• Data accuracy
• Collaboration with cross-functional teams
• Maintains accountability for deliverables through to final resolution
• Ability to manage sensitive and highly confidential information
• Ability to identify and manage competing priorities
• Ability to work independently and in a team environment
• Excellent communication and organization skills
• Strong interpersonal skills

What we Offer:

• Competitive compensation based on experience.
• Comprehensive benefits package for medical, dental, vision and more.
• 401k and a 4% match for all full-time eligible employees after 1 year of service.
• Flexible work schedule: eligible employees may have a hybrid schedule after 6 months of employment.
• Professional development opportunities.
• Collaborative and supportive team environment.
• Paid Time Off and Holiday Pay for eligible employees.
• Employee recognition and reward programs.

Our Culture

At Perennial, we foster a culture where all team members are empowered to take initiative, share ideas, and grow professionally. Our commitment to excellence and client satisfaction drives everything we do, while maintaining a positive and inclusive workplace. We rely on our Core Values as a cornerstone of how we run our business. We are a Community. We are Growth Oriented. We have Integrity. We encourage Innovation. We have Tenacity.

How to Apply

Interested candidates should submit a cover letter and resume in one document, labeled with the applicant’s name, to This email address is being protected from spambots. You need JavaScript enabled to view it., using the subject line “Senior Air Quality Specialist/Engineer Applicant”.

Please note: This position requires eligibility to work in the United States. Perennial Environmental Services does not sponsor visa applications for this position.

Perennial Environmental Services is an equal-opportunity employer. Qualified applicants will be considered for employment without regard to age, race, color, religion, gender, marital status, sexual orientation, gender identity, national origin, veteran, or disability status.

Location: Corporate Office, Houston, TX

Division: Perennial Texas Division

Employment Type: Full-Time

Salary: Depending on experience, starting at $100,000 per year

Position Summary

Perennial Environmental Services, LLC (Perennial), a rapidly growing environmental consulting firm, is seeking a motivated and team-oriented Senior Environmental Project Manager to join our Houston office full-time. We provide a wide range of environmental services to clients across the nation and are looking for someone who shares our core values of Community, Growth-Oriented, Integrity, Innovation, and Tenacity.

The Senior Environmental Project Manager will be a strong, strategic partner to our clients, have at least 3-5 years of experience in Environmental Consulting Project Management, minimum of 8 years of experience permitting large, complex construction projects in the private and public sectors and have demonstrated progressive career growth in Environmental Services.

Minimum Qualifications

• Bachelor’s or Master’s level degree in one or more of the following disciplines: environmental science, geology, ecology, botany, forestry, soil science, aquatic ecology, plant ecology, or wildlife biology.
• A minimum of 8 years of experience permitting large, complex construction projects in the private and public sectors.
• Permitting experience, preferably on pipeline, transmission line, or renewable infrastructure construction projects, involving the following is required:
• Section 401, 402, and 404 Clean Water Act;
• Section 10 Rivers and Harbors Act;
• Informal and formal consultations under the Endangered Species Act; and
• Section 106 of the Historic Preservation Act compliance.
• National Environmental Policy Act;
• A minimum of 4 years of experience in a leadership role managing multiple direct reports on a variety of concurrent projects.
• Experience reviewing RFPs/RFQs, developing environmental project budgets/schedules and writing technical proposals.

Preferred Qualifications

• Experience with Deltek VantagePoint Preferred.

Core Competencies

• Detailed oriented
• Analytical thinking and problem solving
• Data accuracy
• Collaboration with cross-functional teams
• Maintains accountability for deliverables through to final resolution
• Ability to manage sensitive and highly confidential information
• Ability to identify and manage competing priorities
• Ability to work independently and in a team environment
• Excellent communication and organization skills
• Strong interpersonal skills

Key Responsibilities

• Manage a variety of energy infrastructure projects, with a focus on those regulated by the Federal Energy Regulatory Commission (FERC).
• Oversee the preparation of critical documentation for National Environmental Policy Act (NEPA) compliance, including environmental permit applications, resource reports for small FERC 7(c) and prior notice projects, Environmental Assessments, and Environmental Impact Statements.
• Coordinate with clients to manage environmental schedules, budgets, data needs, and project scopes.
• Oversee the preparation of federal, state, and local permit applications, including those for U.S. Army Corps of Engineers (Section 404) and threatened and endangered species (Section 7) approvals.
• Directly involved in consultations with our clients as well as federal, state, and local environmental agencies.
• Directing staff on and providing technical/editorial reviews of various environmental reports and permit applications.
• Understand and ensure staff compliance with company and client safety policies and procedures.
• Occasional travel may be required based on project demands.

What we Offer:

• Competitive compensation based on experience.
• Comprehensive benefits package for medical, dental, vision and more.
• 401k and a 4% match for all full-time eligible employees after 1 year of service.
• Flexible work schedule: eligible employees may have a hybrid schedule after 6 months of employment.
• Professional development opportunities.
• Collaborative and supportive team environment.
• Paid Time Off and Holiday Pay for eligible employees.
• Employee recognition and reward programs.

Our Culture

At Perennial, we foster a culture where all team members are empowered to take initiative, share ideas, and grow professionally. Our commitment to excellence and client satisfaction drives everything we do, while maintaining a positive and inclusive workplace. We rely on our Core Values as a cornerstone of how we run our business. We are a Community. We are Growth Oriented. We have Integrity. We encourage Innovation. We have Tenacity.

How to Apply

Interested candidates should submit a cover letter and resume in one document, labeled with the applicant’s name, to This email address is being protected from spambots. You need JavaScript enabled to view it., using the subject line “Senior Environmental Project Manager Applicant”.

Please note: This position requires eligibility to work in the United States. Perennial Environmental Services does not sponsor visa applications for this position.

Perennial Environmental Services is an equal-opportunity employer. Qualified applicants will be considered for employment without regard to age, race, color, religion, gender, marital status, sexual orientation, gender identity, national origin, veteran, or disability status.

Location: Corporate Office, Houston, TX

Division: Perennial Texas Division

Employment Type: Full-Time

Salary: Depending on experience, starting at $52,000 per year

Position Summary

Perennial Environmental Services LLC (Perennial), a rapidly growing environmental consulting firm, is seeking a motivated and team-oriented Staff Biologist I & II to join our Houston office full-time. We provide a wide range of environmental services to clients across the nation and are looking for someone who shares our core values of Community, Growth-Oriented, Integrity, Innovation, and Tenacity.

This individual will lead and participate in field surveys conducting wetland delineations, threatened and endangered species surveys, and baseline environmental studies. Between field deployments, they will assist in data analysis and in the preparation of the associated technical reports necessary for NEPA documentation. The position will require travel, as needed on a Project basis throughout the continental U.S.

Minimum Qualifications

• The target candidate will possess a Bachelor’s or Master’s degree in Botany, Wildlife or Range Management, Forestry, Environmental Science or Soil Science, or a related field.
• A minimum of 1-2 years of experience conducting wetland and waterbody delineations in accordance with the 1987 U.S. Army Corps of Engineers Wetland Delineation Manual.
• Ability and desire to perform physical activities working outdoors in adverse weather conditions including exposure to extreme heat, cold, rain and other adverse weather conditions.
• The candidate must also be highly organized, self-motivated and detail oriented.
• Applicants must have legal authorization to work in the country in which the position is based with no restrictions.
• Valid driver’s license with demonstrated safe driving record.
• Ability to travel at least 75% of the time.

Core Competencies

• Detailed oriented
• Analytical thinking and problem solving
• Data accuracy
• Collaboration with cross-functional teams
• Maintains accountability for deliverables through to final resolution
• Ability to manage sensitive and highly confidential information
• Ability to identify and manage competing priorities
• Ability to work independently and in a team environment
• Excellent communication and organization skills
• Strong interpersonal skills

Key Responsibilities

• Participate and lead in field surveys conducting wetland delineations, threatened and endangered species surveys and baseline environmental studies.
• Other duties as assigned.

What we Offer:

• Competitive compensation based on experience.
• Comprehensive benefits package for medical, dental, vision and more.
• 401k and a 4% match for all full-time eligible employees after 1 year of service.
• Flexible work schedule: eligible employees may have a hybrid schedule after 6 months of employment.
• Professional development opportunities.
• Collaborative and supportive team environment.
• Paid Time Off and Holiday Pay for eligible employees.
• Employee recognition and reward programs.

Our Culture

At Perennial, we foster a culture where all team members are empowered to take initiative, share ideas, and grow professionally. Our commitment to excellence and client satisfaction drives everything we do, while maintaining a positive and inclusive workplace. We rely on our Core Values as a cornerstone of how we run our business. We are a Community. We are Growth Oriented. We have Integrity. We encourage Innovation. We have Tenacity.

How to Apply

Interested candidates should submit a cover letter and resume in one document, labeled with the applicant’s name, to This email address is being protected from spambots. You need JavaScript enabled to view it., using the subject line “Staff Biologist I & II Applicant”.

Please note: This position requires eligibility to work in the United States. Perennial Environmental Services does not sponsor visa applications for this position.

Perennial Environmental Services is an equal-opportunity employer. Qualified applicants will be considered for employment without regard to age, race, color, religion, gender, marital status, sexual orientation, gender identity, national origin, veteran, or disability status.

Location: On the road/ in the field

Division: Perennial Texas Division

Employment Type: Full-Time

Salary: Depending on experience, starting at $23.00 per hour

Position Summary

Perennial Environmental Services, LLC (Perennial), a rapidly growing environmental consulting firm, is seeking a motivated and team-oriented FERC/NEPA Junior Project Manager to join our Houston office full-time. We provide a wide range of environmental services to clients across the nation and are looking for someone who shares our core values of Community, Growth-Oriented, Integrity, Innovation, and Tenacity.

Our Cultural Resources division has openings for field leads and technicians to conduct Phase I survey in Texas, Louisiana, Oklahoma and surrounding states.

Experience and Skills

• Minimum of a bachelor’s degree in archaeology, anthropology, or related science
• Experience conducting Linear Phase I surveys for field technicians preferred
• Applicants must be proficient in recording sites, completing field paperwork, operations of GPS and GIS equipment and software
• Ability to work in the field

Core Competencies

• Detailed oriented
• Analytical thinking and problem solving
• Data accuracy
• Collaboration with cross-functional teams
• Maintains accountability for deliverables through to final resolution
• Ability to manage sensitive and highly confidential information
• Ability to identify and manage competing priorities
• Ability to work independently and in a team environment
• Excellent communication and organization skills
• Strong interpersonal skills

What we Offer:

• Competitive compensation based on experience.
• Comprehensive benefits package for medical, dental, vision and more.
• 401k and a 4% match for all full-time eligible employees after 1 year of service.
• Flexible work schedule: eligible employees may have a hybrid schedule after 6 months of employment.
• Professional development opportunities.
• Collaborative and supportive team environment.
• Paid Time Off and Holiday Pay for eligible employees.
• Employee recognition and reward programs.

Our Culture

At Perennial, we foster a culture where all team members are empowered to take initiative, share ideas, and grow professionally. Our commitment to excellence and client satisfaction drives everything we do, while maintaining a positive and inclusive workplace. We rely on our Core Values as a cornerstone of how we run our business. We are a Community. We are Growth Oriented. We have Integrity. We encourage Innovation. We have Tenacity.

How to Apply

Interested candidates should submit a cover letter and resume in one document, labeled with the applicant’s name, to This email address is being protected from spambots. You need JavaScript enabled to view it., using the subject line “Temporary Field Archaeological Technician Applicant”.

Please note: This position requires eligibility to work in the United States. Perennial Environmental Services does not sponsor visa applications for this position.

Perennial Environmental Services is an equal-opportunity employer. Qualified applicants will be considered for employment without regard to age, race, color, religion, gender, marital status, sexual orientation, gender identity, national origin, veteran, or disability status.

Required Experience: All levels
Location: Various energy infrastructure projects throughout the U.S.

Perennial Environmental Services is seeking resumes for qualified Environmental Inspectors (EIs) for various pipeline and other energy infrastructure projects throughout the U.S. EI positions will be staffed on a per project basis and will involve full-time work, likely exceeding 40 hours per week, for the duration of a given project.

Primary Responsibilities:

• Conduct on-site environmental inspections to ensure compliance with environmental regulations, permit conditions, project plans, and other environmental commitments
• Preparation of written inspection reports including photo documentation, construction status reports, compliance tracking logs, etc.
• Provide guidance regarding proper installation, maintenance, and removal of erosion and sediment control measures
• Conduct and assist with environmental training
• Correspondence with contractor, agency, and client personnel
• Coordinating any required sampling, transportation, and/or disposal of/for various media

Qualifications:

• Possesses knowledge of pipeline construction activities with experience working around heavy equipment
• Strong understanding of Industry Standards relating to erosion and sediment control practices, wetland crossings, stream crossings, agricultural lands, cultural resources, sensitive species and other environmental aspects of pipeline construction projects
• Ability to read and interpret construction plans, drawings and other technical documents
• Knowledge of environmental laws and regulations pertaining to pipeline construction projects
• Excellent written and verbal communication skills
• Ability to work long hours outdoors under various field conditions
• Computer proficiency
• Valid U.S. Driver’s License
• Have or obtain project specific or client required certifications or training

Preferred Qualifications

• BA/BS Degree in Environmental Science, Biological Resources, or related field
• 3+ years’ experience coordinating, supervising other EIs for pipeline construction projects
• API 1169 Certification