Environmental Scientist

The Opportunity:

Tetra Techis adding a Mid-level Environmental Scientist to our water resources environmental team based in Portland, OR.

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 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.

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.

We're currently seeking an Environmental Scientist to join our team of biologists, environmental planners, and engineers who specialize in aquatic habitat restoration, biological studies, environmental assessments, permit applications, and NEPA documentation for projects throughout the West Coast and Alaska. Our team has worked on several exciting and impactful projects, including:

• Environmental review of an 800,000-acre-foot groundwater bank in California
• Wetland restoration on islands in the Columbia River
• Salton Sea Restoration Project
• Endangered Species Act / Marine Mammal Protection Act compliance for U.S. Coast Guard bases in Alaska and the west coast
• Wildlife monitoring on the Santa Ana River
• Permitting fish passage restoration projects in Washington

This position offers hands‑on technical experience, exposure to diverse project types, and clear opportunities for professional growth and advancement within the firm.

The following duties are essential to this role. Reasonable accommodation will be made to enable individuals with disabilities to perform these functions.

• Prepare, review, and analyze environmental documentation under NEPA, SEPA, and CEQA processes.
• Prepare Endangered Species Act (ESA) compliance documentation, including technical reports and field‑based assessments.
• Conduct field surveys related to vegetation, wildlife habitat, and riverine features throughout the Pacific Northwest.
• Perform GIS mapping and data analysis to support project planning, environmental review, and reporting.
• Conduct wetland delineations in accordance with applicable methodologies and regulatory standards.
• Apply wetland and stream rapid assessment methodologies in California, Oregon, and Washington.
• Prepare and oversee the development of environmental permits, including Clean Water Act Sections 404 and 401 permits.
• Support stream and wetland restoration planning and implementation activities.
• Perform task management and assist project management for complex environmental projects.
• Assist with business development efforts related to biological and environmental services.

• Bachelor's or Master's degree in Biology , Geography, Environmental Sciences, Water Resources Sciences, or a related field .
• Minimum of 5 years of professional experience in environmental sciences, including NEPA, permitting, GIS, surveying, water quality, and wetland delineations.
• Demonstrated knowledge of local plant , fish, and/or wildlife species and their habitat requirements.
• Proven ability to research and prepare reports on environmental disciplines, regulations, and policies, including NEPA, SEPA, and ESA documentation.
• Experience with federal, state, and local environmental permitting regulations and processes.
• Ability to communicate professionally and work collaboratively with regulatory agency staff, co‑workers, management, clients, and the public.
• Strong organizational skills, including the ability to manage multiple projects and deliver work products on time.
• Effective oral and written communication skills.
• Proficiency with GPS equipment and ArcGIS software.
• Valid driver's license.

• Ability to travel to…