Careers with Perennial

One of our most important business strategies is hiring and retaining highly motivated, intelligent employees that have a desire to go above and beyond client expectations. We offer professional growth through hands-on technical training and mentoring. Our clients represent a broad-range of industries and offer diverse projects to develop a well-rounded environmental professional.

We strongly believe in investing in staff development, professional and technical training, and mentoring by our senior consultants.

We are always looking for qualified biologists, ecologists, toxicologists, and archaeologists to complement our existing staff.

Current Job Openings (click job title to see full description)

Accounting Manager

The Accounting Manager is a working-manager position where you will work directly with executive and project management, client, and the corporate financial teams to ensure accurate invoicing, accurate payroll, accurate AR/AP, and monthly financial reporting. This position will maintain ultimate responsibility over accounting, payroll, and finance functions.

ESSENTIAL FUNCTIONS:

  • Actively engage in and oversee all finance related needs & team to ensure AR, AP, accounting, finance, payroll deliverables met. 
  • Oversee accurate client invoicing, meeting organizational deadlines.
  • Finalizing payroll prior to run with accurate pay data.
  • Providing clients with accurate monthly reports and resolution to client inquiries.
  • Coordinating changes, projects, and upgrades to system and processes.
  • Interact with Executives, IT, HR, and Operations for business objectives.
  • Maintains full integrity of all finance, accounting, & revenues, ensuring organization policies and procedures, as well as federal, state, and local laws and regulations, are followed. 
  • Compiles fiscal estimates and prepares fiscal reports. 
  • Ensures compliance with accounting procedures and principles.
  • Develops procedures that ensure all financial company needs are complete and current.
  • Report on, analyze, and implement solutions based on past trends, current conditions, and future goals.
  • Review and analyze both service and operational activities, costs, operations, and forecasted data.
  • Advises, participates in negotiations, and manages all contracts into which the Company may enter. Review with the President on financial matters associated with the financial viability prior to entering contracts.
  • Participate in the development of the company’s plans and programs as a strategic and tactical partner.
  • Perform other duties as assigned and required.

EDUCATION AND WORK EXPERIENCE:

  • Bachelor’s degree in Accounting, Finance or equivalent, Masters preferred.
  • Five (5) or more years in finance experience is required.
  • Solid understanding of generally accepted accounting principles.
  • Experience with $20mm or more P&L organizations preferred. 
  • Experience in multi-site and multi-state accounting, payroll, and finance required.
  • Microsoft Business Central experience preferred.
  • Expert level in Microsoft Excel required.
  • Experience in forecasting required.

KNOWLEDGE AND SKILLS:

  • Strong work ethic and sense of urgency
  • Operates with and maintains the highest level of integrity 
  • Builds trust & confidence with business unit
  • Advanced Financial knowledge
  • Detail oriented
  • Ability to work in a fast-paced environment
  • Excellent communication skills (verbal and written)

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 applications name to This email address is being protected from spambots. You need JavaScript enabled to view it. quoting “Accounting Manager” 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.

Seasonal Cultural Archeologist

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 central through west Texas starting in July, and continuous work is expected into the end of Summer.

Schedule and Compensation

  • The pay range is $20-$23hr for technicians and $23-$25hr for field leads based on experience
  • $50 Per-Diem daily
  • 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
  • 3+ years of experience for field leads with Texas experience 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.
GIS Technician

Required Experience: 2 Years
Location: Houston, Texas

Perennial Environmental Services (Perennial) is actively seeking a highly motivated person to fill a GIS Technician position in their Houston, 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, TX to support our clients.

The individual should have strong interpersonal and problem-solving skills, the ability to multitask on a variety of concurrent projects, as well as experience using ArcGIS for data compilation, standardization, and data management. Additionally, experience with geographic data mapping, spatial analysis, and cartographic product creation is required.

The qualified candidate will have a Bachelor’s or Master’s level education in progress in one or more of the following disciplines: geography, GIS, environmental sciences, information technology, or other related disciplines. The candidate must also possess excellent written and oral skills, be highly organized, self-motivated and detail oriented.

Key Qualifications:

  • Minimum 2 years of work within the ESRI products suite, and other GIS software such as QGIS and Google Earth.
  • Be able to develop and maintain spatial databases, including MS Access and File Geodatabases (GDB),
  • Possess a working knowledge of Microsoft Office Suite, in particular MS Excel and MS Access.
  • Familiarity with ESRI Field Maps, 123Survey and Web Mapping.
    Familiarity with programming languages such as Python is a plus.
  • Excellent knowledge of statistical software & data visualization software such as R is a plus.
  • Must be motivated, detail oriented, and a team player.
  • This position requires that you are eligible to work in the United States. Perennial Environmental Services will not sponsor visa applications for this position.

Qualified applicants should submit a cover letter and resume combined into one PDF to Human Resources at This email address is being protected from spambots. You need JavaScript enabled to view it..

Archeological Principal Investigator

Required Experience: 3 to 5 years +
Location:  Austin, Texas

Perennial Environmental Services is actively seeking a highly motivated person to fill a Principal Investigator 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.

The individual should meet the Secretary of the Interior standards for archeology, possess a Master’s Degree or higher, 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. A Registered Professional Archaeologist (RPA) is preferred. 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 oil and gas projects.

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..

GIS Specialist

Required Experience: 3+ years or graduate degree
Location: Houston, Texas

Perennial Environmental Services (Perennial) is actively seeking a highly motivated person to fill a GIS Specialist position in their Houston, 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 a satellite office in Austin, TX to support our clients.

The individual should have strong interpersonal and problem-solving skills, the ability to multitask on a variety of concurrent projects, as well as experience using ArcGIS for data compilation, standardization, and data management. Additionally, experience with geographic data mapping, spatial analysis, and cartographic product creation is required.

The qualified candidate will have a Bachelor’s degree with at least 3 years of working experience or Master’s level education in one or more of the following disciplines: geography, GIS, environmental sciences, information technology, or other related disciplines. The candidate must also possess excellent written and oral skills, be highly organized, self-motivated and detail oriented.

Key Qualifications

Bachelor’s degree in Geography, GIS, Environmental Science, IS/IT, or related field.

Minimum 3 years of working experience within the ESRI products suite (ArcGIS Desktop, ArcGIS Pro), and other GIS software such as QGIS and Google Earth.

3+ years GIS experience with emphasis in designing and deploying GIS data models using languages such as Python, HTML, Arcade, SQL.

Be able to develop and maintain spatial databases, including MS Access and File Geodatabases (GDB).

Familiarity with Trimble products, including handheld GPS units.

Excellent working knowledge of MS Excel and MS Access.

Working knowledge with ESRI Collector, 123Survey and Web Mapping
Ability to work extended hours as needed to complete project deliverables.
Ability to handle fast paced work environment on a variety of projects.

Ability to demonstrate initiative and assertiveness, the ability to plan and manage work in an efficient manner, and the ability to work well under stress and time pressures.

This position requires that you are eligible to work in the United States.
Perennial offers a highly competitive compensation and benefits package and significant potential for personal and professional growth. Qualified applicants should submit a cover letter, work sample and resume combined into one PDF to Human Resources at This email address is being protected from spambots. You need JavaScript enabled to view it..

If you would like more information about Perennial and the services we provide, please visit our website at www.perennialenv.com or contact us at 713-462-7121.
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, and veteran or disability status.

Renewable Energy Practice Lead

Required Experience: 5 years +
Location: TBD

Perennial Environmental Services (Perennial) is actively seeking a highly motivated person to fill a Practice Lead or Senior-level Project Management position to lead our renewables energy practice. Depending on the candidate, this position could be based out of one of Perennial’s two primary offices, Houston or Austin, Texas, or within one of our satellite offices around the continental U.S., that Perennial shares with sister companies under our private equity umbrella. Perennial is an environmental consulting firm that provides ecological and cultural resource services to a variety of private and public clients throughout the country and is expanding our renewable energy services through organic growth and strategic hires.

The ideal applicant should have five or more years of experience providing environmental consulting support for renewable energy projects and have existing relationships with companies or individuals in this sector. They should have a proven track record of identifying new clients in this sector, establishing relationships, and successfully being awarded projects. Perennial operates with a “seller-doer” model so the individual should have the ability to manage multiple projects, internal resource teams, and provide strategic direction to the firm for this sector concurrently. Perennial prides itself on maintaining “best in class” customer service and delivering projects in a timely and cost-effective manner so the applicant should exhibit the same goals and level of commitment.

Some key responsibilities for the position are as follows:

  • Develop a targeted business development and marketing plan to expand on existing relationships, identify new clients, and win environmental consulting projects within the sector.
  • Work collaboratively with internal project managers and resource leads to plan and execute renewable energy projects.
  • Identify new service line expansions or technical capabilities necessary to meet the needs of clients in this sector.
  • Develop internally or recruit a team of resource specialists and project managers to deliver on projects in this sector. 

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 This email address is being protected from spambots. You need JavaScript enabled to view it.m  quoting “Renewable Energy Practice Lead Applicant” in the subject line.

Full-Time Salaried Environmental Project Manager

Location: Houston, Texas

Perennial Environmental Services, LLC (Perennial) is actively seeking a highly motivated person to fill an Environmental Project Manager position in their Houston, 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.

The individual should have strong leadership, interpersonal and problem-solving skills, the ability to multitask and manage/mentor junior technical staff on a variety of concurrent projects, experience estimating and managing budgets, and experience writing technical proposals. A minimum of two years of project management experience involving one or more of the following (preferably on linear 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.

Other job responsibilities will include the preparation and editorial review of various technical environmental reports and environmental permit applications. This individual will be directly involved in consultations with our clients as well as federal, state, and local environmental agencies.

The qualified candidate will have a Bachelor’s or Master’s level education in one or more of the following disciplines: environmental science, geology, ecology, botany, forestry, soil science, aquatic ecology, plant ecology, or archaeology. The candidate must also possess excellent written and oral communication skills; be highly organized, self-motivated and detail oriented; and have the ability to effectively interface with field personnel, internal management, clients, and agency staff.

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 a cover 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 Salaried Environmental Project Manager Applicant” in the subject field.

Full-Time Entry-Level Salaried Environmental Specialist

Perennial Environmental Services, LLC (Perennial) has an immediate opening in our Houston, Texas office for a self-motivated Entry-Level Environmental Specialist with a positive, team-oriented outlook. Perennial is a rapidly growing environmental consulting firm that provides environmental services to a variety of clients throughout the country.

This individual will assist in data analysis and in the preparation of the associated technical reports, environmental permit applications, and National Environmental Policy Act (NEPA) documentation. The individual will gain valuable practical experience in the field of environmental permitting and compliance. The position may require occasional travel, as needed on a Project basis.

The ideal candidate will possess:

  • Master’s or Bachelor’s degree in Environmental Science, Botany, Wildlife or Range Management, Forestry, Geology, Soil Science, or related discipline;
  • Strong written and oral skills;
  • Be highly organized and detail oriented;
  • General understanding of NEPA and federal environmental laws and regulations;
  • Working knowledge of MS Office (Word, Excel, and PowerPoint) is essential for use in completing assignments;
  • Ability to work in a collaborative, team environment and responsive to deadlines;
  • Ability to work on multiple projects at one time; and
  • Desired Completed Coursework: ecology, geology, biology, water resources/hydrology, and environmental regulation/law/policy.

Interested candidates are invited to send a cover 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 Environmental Specialist Applicant” in the subject field.

Staff Archaeologist

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..

Environmental Inspector (Pipeline)

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

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, and veteran or disability status.

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