Required Experience: 3 years + preferred
Location: Houston, Texas
Salary: Depends on Experience

Perennial Environmental Services is actively seeking a highly motivated and detail-oriented Staff Accountant to manage and process billing operations while overseeing accounts payable activities. Perennial is a rapidly growing environmental consulting firm that provides ecological and cultural resource services to a variety of clients throughout the country, primarily to the oil and gas industry.

The candidate should have previous experience working in a highly dynamic and fast-paced office setting, be adept at professional communication, highly organized, and quick to learn new technical skills related to the environmental industry. This role requires strong attention to detail, analytical thinking and a solid understanding of accounting principles.

Tasks would include but are not limited to the following:

• Manage and process full-cycle billing, ensuring accuracy and timeliness
• Record and apply cash receipts to customer accounts accurately and promptly
• Monitor outstanding receivables and follow up on overdue payments
• Resolve billing and payment discrepancies and respond to client/vendor inquiries
• Oversee accounts payable, including vendor invoice processing, payment scheduling, and reconciliation
• Assist with month- and year-end close processes, including accruals and adjustments
• Maintain organized financial documentation and support audit preparation
• Collaborate with internal teams to ensure financial accuracy and efficiency
• Monitor and analyze accounting data to identify trends, variances or areas for improvement
• Support the preparation of internal and external financial reports, assist with audits by providing documentation and responding to inquiries

Skills and Qualifications

• Bachelor’s degree in accounting, Finance, or related field
• A minimum of 3 years’ experience in billing, accounts payable, or general accounting
• Proficiency in accounting software (e.g., QuickBooks, NetSuite, SAP)
• Experience with Deltek VantagePoint is a plus
• Strong understanding of GAAP and internal controls
• Excellent attention to detail and organizational skills
• Ability to manage multiple priorities and meet deadlines
• Strong communication and problem-solving skills

Benefits:

401(k)
Health insurance
Dental/Vision insurance
Holidays and Paid time off

Interested candidates are invited to send an application letter with a resume contained 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. quoting “Staff Accountant” in the subject field.

This position requires that you are eligible to work in the United States. Perennial Environmental Services will 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: Houston, Texas

Role Overview:
As a Mid-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.  You will also be responsible for coordinating directly with various federal, state, and local agencies.  This position offers valuable practical experience in environmental permitting and compliance.  Occasional travel (less than 10%) may be required based on project needs.

Key Qualifications:

• Bachelor’s or Master’s degree in Environmental Science, Biology, Botany, Wildlife Management or Biology, Forestry, Ecology, Soil Science, or a closely related field.
• Demonstrated written and verbal communication skills.
• Highly organized and detail oriented.
• Familiarity with Endangered Species Act, Clean Water Act and other federal environmental regulations.
• 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.
• Proficiency in Microsoft 365 (Word, Excel, and PowerPoint).
• Ability to work in a collaborative, team environment and meet deadlines.
• Ability to work on multiple projects simultaneously.

What we Offer:

Perennial provides a competitive compensation and benefits package, along with significant opportunities for personal and professional growth.  To learn more about our firm and the services we offer, please visit our website at www.perennialenv.com.

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 “Full Time Mid-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.

Location: Houston, Texas

Perennial Environmental Services, LLC (Perennial), a rapidly growing environmental consulting firm, is seeking a motivated and team-oriented GIS Technician 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. 

Role Overview:
The Geographic Information Systems (GIS) Technician is responsible for creating, maintaining and analyzing the GIS data to support the Perennial internal activities and distributing data externally as needed.

Essential Functions and Duties:
Data Management:
Creates and maintains GIS data.
Maintains metadata, data accuracy, and consistency across layers and services in the GIS environment.
Prepares GIS data to fulfill GIS data requests made by consultants and the public.

Application Support:
Provides troubleshooting and optimizes published services used in ArcGIS Portal web applications and maps.
Creates, maintains, and supports webmap applications.

Process Automation:
Automates processes using Python, ArcPy, Modelbuilder, and the ArcGIS REST API.

Data Analysis:
Analyzes GIS data.
Assist with departments projects, as needed.
Work hours may vary based on the business needs of the department.
Perform other duties that may be added or changed as the course and scope of the job directs.

Key Qualifications:
Two (2) years’ experience working with GIS products, GPS equipment, mapping.
Experience with Esri’s GIS software including ArcGIS Pro, Phyton, ArcToolbox and/or ArcMap. (One year of experience may be allowed for each year of education in GIS related course work)
Excellent knowledge of Microsoft Office applications.
Proficiency with Esri software, including ArcGIS Pro and ArcMap.
Excellent written and verbal communication skills.
Excellent organizational skills.
Good diagnostic and analytical skills.
Can work independently with limited supervision.
Ability to prioritize and manage multiple projects and/or assignments.

Work Location:
Houston Office / 13100 Northwest Freeway, Suite 150, Houston, TX 77040
Hybrid work schedule

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 “Full Time 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.

Required Experience: 3 to 5 years +; Master’s Degree, Register of Professional Archeologists (RPA)
Location: Austin or Houston, TX (preferred), Remote

Perennial Environmental Services is actively seeking a highly motivated person to fill a Principal Investigator position. Perennial is a rapidly growing environmental consulting firm that provides ecological and cultural resource services to a variety of clients throughout the country, primarily to the energy industry.

The individual should meet the Secretary of the Interior standards for archeology, possess a Master’s Degree or higher, be a Registered Professional Archaeologist (RPA), demonstrate experience with state and federal permitting, and have been the lead author on technical cultural resources reports compliant with state reporting guidelines.

Job responsibilities will include managing field projects and staff, writing technical reports, agency coordination, conducting background research, and contribute to proposals and marketing efforts. The candidate must also possess excellent written and oral skills, be highly organized, self-motivated, detail oriented, and be able to work in a high-demand atmosphere. The preferred candidate will have experience working on Projects in Texas, Oklahoma, Louisiana and the surrounding states. The candidate must demonstrate strong technical writing skills, have experience supervising field crews, be well versed in the state, federal, and local antiquities laws and regulations, and have experience working on linear pipeline projects, or renewable energy projects.

Additional duties include:

• Oversee a team performing literature review, field reconnaissance, field surveys, and excavation for archaeological studies and projects.
• 
  Manage multiple projects within scope/budget/schedule expectations and ensure quality standards on project deliverables.
• Serve as primary author on large technical reports, research designs, permit applications, other technical documents, and site forms.
• Oversee field research, data collection, inventory, analysis, and final report production, ensuring these tasks are conducted in accordance with the QA/QC plan.
• Represent Perennial through communications and at meetings with state, federal and local agencies. 
• Assist with training and mentoring of staff in topics including NRHP eligibility, implementation of research designs, technical reporting, and site recording protocols.
• Maintain good working relationships with state and federal agency contacts and clients.
• Drive compliance of safety policies and reporting requirements to ensure overall team safety.
• Dedication to scientific integrity and quality work products for all clientele.

Perennial offers a highly competitive compensation and benefits package and significant potential for personal and professional growth. Qualified applicants should submit a resume to This email address is being protected from spambots. You need JavaScript enabled to view it..

Location: Houston, Texas

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.

Role Overview:

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.

Key Qualifications:

• Bachelor’s or Master’s degree in Environmental Science, Botany, Wildlife or Range Management, Forestry, Geology, Soil Science, or a related field.
• Strong written and verbal communication skills.
• Highly organized and detail oriented.
• 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).
• Ability to work in a collaborative, team environment and meet deadlines.
• Ability to work on multiple projects simultaneously.
• Relevant coursework including ecology, geology, biology, water resources/hydrology, and environmental law/policy.

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 “Full Time 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

Location: Houston, Texas or Austin, Texas

• 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.
• Strong written and verbal communication skills.
• Highly organized, detail-oriented, and self-motivated.
• Ability to work in a collaborative, team environment and meet deadlines.
• Ability to work on multiple projects simultaneously.
• Proficiency in Microsoft 365 (Word, Excel, and PowerPoint).
• Strong leadership, interpersonal, and conflict-resolution skills.
• Ability to effectively collaborate with field personnel, internal management, clients, and agency staff.
• Relevant coursework includes ecology, geology, biology, water resources/hydrology, and environmental law/policy.

Location: Houston, Texas

Perennial Environmental Services (Perennial) is actively seeking a highly motivated person for a mid-level biologist position in Houston, Texas.  Perennial is a rapidly growing environmental consulting firm that provides ecological services to a variety of clients throughout the country.  

This individual will participate in wetland delineations, threatened and endangered species surveys, NEPA documentation, and baseline environmental studies.  They will assist in data analysis and in the preparation of the associated technical reports.  The individual will gain valuable practical experience in the field of environmental permitting and compliance.  The position will require travel, as needed on a Project basis.

The target candidate will possess a Master’s or Bachelor’s degree in Botany, Wildlife or Range Management, Forestry, Environmental Science, Soil Science, Geology, or a similar natural science-based degree.  A minimum of one year of experience conducting wetland and waterbody delineations in accordance with the 1987 U.S. Army Corps of Engineers Wetland Delineation Manual is preferred. The candidate must also be highly organized, self-motivated, and detail-oriented.

Perennial offers a highly competitive compensation and benefits package and significant potential for personal and professional growth.  If you would like more information about Perennial and the services we provide, please visit our website at www.perennialenv.com.

Interested candidates are invited to send an application letter with a resume contained 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. quoting “Full Time Mid-Level Biologist/Ecologist Applicant” in the subject field.

This position requires that you are eligible to work in the United States.  Perennial Environmental Services will 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.

Perennial Environmental is an environmental consulting firm that provides ecological and cultural resources to a variety of clients throughout the country. Our Cultural Resources division has openings for field leads and technicians to conduct Phase I survey in Texas, Louisiana, Oklahoma and surrounding states.

Schedule and Compensation

• Field Technicians with 1-2 years experience: $23 to $25/hr
• Field Lead with 2 to 4 years experience: $26 to $28/hr
• $59 Per-Diem or GSA per diem rate
• Overtime is over 40hrs weekly, paid at Time and Half
• Single occupancy hotel rooms
• Schedule On: Monday – Saturday
• Schedule Off: Sunday
• 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

Qualified applicants can email a CV to the Cultural Field Coordinator at This email address is being protected from spambots. You need JavaScript enabled to view it.

Required Experience: 1-2 years +
Location: Austin, Texas

Perennial Environmental Services (Perennial) is actively seeking a highly motivated person to fill a Staff Archaeologist position in their Austin, Texas office. Perennial is a rapidly growing environmental consulting firm that provides ecological and cultural resource services to a variety of clients throughout the country, primarily to the oil and gas industry. Perennial is headquartered in Houston and maintains satellite offices in Austin, Texas.

The candidate must at least a B.A. degree in anthropology/archaeology, and experience conducting Phase I archaeological fieldwork for linear projects including excavation of shovel tests, operation of GPS equipment, artifact identification and archaeological site delineation. Field experience in Texas, Louisiana, Oklahoma, or Southeastern US is required. The candidate would also contribute to a variety of office tasks consisting of data processing, archival and literature reviews, GIS support, limited technical reporting, artifact analysis and laboratory work. Preference will be given to local candidates (central Texas).

Perennial offers a highly competitive compensation and benefits package and significant potential for personal and professional growth. Qualified applicants should submit a cover letter and resume to the Cultural Resources Director: This email address is being protected from spambots. You need JavaScript enabled to view it..

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