Demo

Biologist - Mid-level

Tetra Tech
Oakland, CA Full Time
POSTED ON 9/19/2026
AVAILABLE BEFORE 10/17/2026
The Opportunity

Tetra Tech is looking for full-time, mid-level Biologist based in our Oakland, CA office.

Position Summary

The selected candidate will provide environmental planning, sampling, oversight, and monitoring during wetlands habitat restoration or other construction projects. Specific activities may include:

  • Planning and leading biological field surveys and performing habitat assessments and evaluating potential project impacts. Preparing biological assessment reports, technical memoranda, and permit materials.
  • Supporting CEQA and NEPA environmental reviews and applying federal and California regulatory requirements.
  • Coordinating with agencies such as the U.S. Army Corps of Engineers, California Department of Fish and Wildlife, Regional Water Quality Control Boards, and local jurisdictions.
  • Supervising or mentoring junior biologists and field technicians. Managing field schedules, data quality, budgets, and project deliverables.
  • Providing construction monitoring and compliance documentation; coordinating with construction personnel, project managers, and regulatory agencies.

Why Tetra Tech

At Tetra Tech, we are Leading with Science to solve the world’s most complex challenges. Our industry-leading experts in engineering and consulting are committed to driving positive change in communities around the world. For over 60 years, we have been at the forefront of innovation and sustainability. Today we stand as a market leader, offering cutting-edge solutions in water, environment, energy, and international development. Our work has improved more than 625 million lives around the world.

Your Impact

Join Tetra Tech to make a real difference. Our work leverages cutting-edge technologies, advanced analytics, and the expertise of world-class scientists and engineers to create meaningful change around the world. Discover your full potential – join us to advance your career while leaving a lasting legacy.

Essential Job Functions (Required)

The following duties are considered essential to the role. Reasonable accommodation may be made to enable individuals with disabilities to perform these essential functions:

  • Possess or have strong desire to learn and implement complex ecological monitoring and reporting techniques and site characterization studies.
  • Perform field work in uneven terrain or marsh environments.
  • Direct and implement permit applications and monitoring associated with wetlands restoration and marsh enhancement projects.

Required Qualifications (Required)

  • Bachelor’s degree in Ecology, Biology, or a closely related field and 5–10 years of professional experience; OR Master’s degree in Ecology, Biology, or a closely related field and 3–8 years of professional experience.
  • 3 – 10 years of experience
  • Basic knowledge of biological resources such as bird, plant, and/or wildlife species of California and San Francisco Estuary.
  • Ability to use field data tablets and GIS instruments.

Preferred Qualifications

  • Ability to identify species a plus.
  • Knowledge of local plant, and/or wildlife species and their habitat requirements.
  • Experience with wetland restoration projects.
  • 40-hour OSHA HAZWOPER training
  • Strong written and oral communication skills
  • Experience using computer software including word processing, spreadsheet, and database programs is preferred.

Work Environment/Environmental Factors (Required)

  • This position is primarily office work, however, occasionally (35%) you will need to perform fieldwork within California and the West Coast.

Physical Requirements (Required)

The physical demands described here represent those that must be met by an employee to successfully perform the essential functions of the job. Reasonable accommodations may be made.

  • Field work anticipated primarily in the San Francisco Estuary with occasional projects throughout the West Coast.
  • Work outdoors in all weather conditions, both hot and cold
  • Walk on uneven terrain
  • Work in variable outdoor environments
  • Don personal protective gear as needed
  • You must be able to drive on a regular basis.
  • Passing a motor vehicle record background check and maintaining a valid driver’s license and safe driving record is required.

Additional Information (Required)

  • Work schedule: Monday – Friday, 8:00am to 5:00pm
  • Overtime requirements: Overtime may be required during field work activities
  • Night/weekend requirements: periodic travel with overnight accommodations
  • Work locations: Our Oakland, CA office or hybrid working at home and the Oakland, CA office.
  • Travel requirements: 35%
  • This arrangement is subject to review and may change at the company’s discretion

Life at Tetra Tech

The Perks Of Working At Tetra Tech Include

  • Comprehensive and market-competitive benefits.
  • Merit-based financial rewards.
  • Flexibility and company-wide commitment to work/life balance.
  • Collaborative team atmosphere that values the contributions of all employees.
  • Learning and development opportunities for ongoing professional growth.

Tetra Tech offers comprehensive benefit options that allow employees to design a plan based on individual needs and assists in planning for long-term financial security. Available benefits include medical, dental and vision insurance, term life, disability, accidental death & dismemberment coverage, Flexible Spending Account (FSA), Health Spending Account (HSA), time off with pay, 401k retirement plan, and an Employee Stock Purchase Plan.

The Salary Range for this position is $85,000 - $120,000, depending on education, experience, skills, and location.

Health and safety play a vital role in our success. Tetra Tech’s employees work together to comply with all applicable health & safety practices and protocols, including any public health orders and regulations that are mandated by local, state, provincial, federal, and international authorities as well as client and project requirements.

About Tetra Tech

Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. Our 25,000 employees work together to provide clear solutions to complex problems by Leading with Science® to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.

Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sex, marital or familial status, status as a protected veteran, or any other characteristic protected by law. Tetra Tech is a VEVRAA federal contractor and we request priority referral of veterans.

We invite applications from all interested parties.

Explore our open positions at https://www.tetratech.com/careers. Follow us on social media to learn more about our people, culture, and opportunities:

LinkedIn: @TetraTechCareers

X (Twitter): @TetraTechJobs

Please no phone calls or agencies.

Additional Information

  • Organization: 103 EMI

Salary : $85,000 - $120,000

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