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Environmental Assistant Jobs in Portland, OR (NOW HIRING)

Environmental Scientist

Portland, OR

$79K - $104K/yr

Perform task management and assist project management for complex environmental projects. * Assist with business development efforts related to biological and environmental services. Requirements ...

Environmental Scientist

Portland, OR · On-site

$79K - $104K/yr

Perform task management and assist project management for complex environmental projects. * Assist with business development efforts related to biological and environmental services. Requirements ...

Environmental Manager

Deer Island, OR · On-site

$125K - $129K/yr

Ability to review the work (e.g., Sampling, Analytical), discuss gaps/improvements and assist with corrective action. Regulatory Knowledge: * Knowledge of environmental Federal, State and Local ...

Environmental Specialist

Portland, OR

$89K - $120K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Interface with customer's environmental personnel, environmental consultants, regulatory representatives, etc. * Assist in the development company-wide Environmental Management supportive programs ...

Environmental Specialist

Portland, OR · On-site

$89K - $120K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Interface with customer's environmental personnel, environmental consultants, regulatory representatives, etc. * Assist in the development company-wide Environmental Management supportive programs ...

Environmental Specialist

Portland, OR · On-site

$89K - $120K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Interface with customer's environmental personnel, environmental consultants, regulatory representatives, etc. * Assist in the development company-wide Environmental Management supportive programs ...

Sr. Environmental Analyst

Portland, OR

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Provide technical input to assist in development of project planning. * Deliver training and ... Bachelor's Degree in Environmental Sciences or Physical Sciences; or the equivalent combination of ...

Sr. Environmental Analyst

Portland, OR · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Provide technical input to assist in development of project planning. * Deliver training and ... Bachelor's Degree in Environmental Sciences or Physical Sciences; or the equivalent combination of ...

Sr. Environmental Analyst

Portland, OR

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Provide technical input to assist in development of project planning. * Deliver training and ... Bachelor's Degree in Environmental Sciences or Physical Sciences; or the equivalent combination of ...

Early Career Environmental Scientist

Vancouver, WA

$55K - $82K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Maintain quality control standards and procedures for accurate and precise measurement and documentation. * Assist with performing basic professional environmental science work relating to ecological ...

New

Early Career Environmental Scientist

Vancouver, WA · On-site

$55K - $82K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Maintain quality control standards and procedures for accurate and precise measurement and documentation. * Assist with performing basic professional environmental science work relating to ecological ...

New

Early Career Environmental Scientist

Portland, OR · On-site

$55K - $75K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Maintain quality control standards and procedures for accurate and precise measurement and documentation. * Assist with performing basic professional environmental science work relating to ecological ...

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Showing results 1-20

Environmental Assistant information

See Portland, OR salary details

$8

$23

$49

How much do environmental assistant jobs pay per hour?

As of Aug 16, 2026, the average hourly pay for environmental assistant in Portland, OR is $23.39, according to ZipRecruiter salary data. Most workers in this role earn between $16.59 and $26.78 per hour, depending on experience, location, and employer.

What does an environmental assistant do?

An Environmental Assistant supports environmental projects by conducting research, collecting data, and ensuring compliance with regulations. They assist in fieldwork, laboratory analysis, and administrative tasks related to sustainability and conservation efforts. Their role often involves collaborating with scientists, engineers, and regulatory agencies to maintain environmental standards and policies.

What are the key skills and qualifications needed to thrive as an environmental assistant?

To thrive as an Environmental Assistant, you need a solid understanding of environmental science principles, attention to detail, and at least a high school diploma—though an associate degree in environmental studies or a related field is often preferred. Familiarity with data collection tools, environmental monitoring equipment, and basic software like Microsoft Excel is commonly required, and certifications such as HAZWOPER can be advantageous. Strong communication, ability to work independently or within a team, and adaptability are important soft skills for this role. These competencies enable Environmental Assistants to accurately support projects, ensure compliance with regulations, and contribute effectively to environmental protection efforts.

What are the most commonly searched types of Environmental jobs in Portland, OR?

The most popular types of Environmental jobs in Portland, OR are:

What are popular job titles related to Environmental Assistant jobs in Portland, OR?

For Environmental Assistant jobs in Portland, OR, the most frequently searched job titles are:

What job categories do people searching Environmental Assistant jobs in Portland, OR look for?

The top searched job categories for Environmental Assistant jobs in Portland, OR are:

What cities near Portland, OR are hiring for Environmental Assistant jobs?

Cities near Portland, OR with the most Environmental Assistant job openings:

Infographic showing various Environmental Assistant job openings in Portland, OR as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $48,645 per year, or $23.4 per hour.

Environmental Scientist

Tetra Tech

Portland, OR

$79K - $104K/yr

Full-time

Re-posted 12 days ago


Tetra Tech rating

6.4

Company rating: 6.4 out of 10

Based on 42 frontline employees who took The Breakroom Quiz

402nd of 449 rated engineering


Job description

The Opportunity:

TetraTechis adding an Environmental Scientist to our water resources environmental team based in Portland, OR.

Why Tetra Tech:

At Tetra Tech, we areLeading with Scienceto solve the world's most complex challenges.Our industry-leading expertsin engineering and consultingare committed to driving positivechangein communities around the world.For60 years, wehavebeen at the forefront of innovation and sustainability.Today we stand as a market leader, offeringcutting-edgesolutions in water, environment, energy, and international development.Our work has improved more than625million lives around the world.

Your Impact:

Join Tetra Tech to make a real difference.Our workleveragescutting-edgetechnologies, advanced analytics, and theexpertiseof world-class scientists and engineers to create meaningful change around the world.Discover your full potential - join us to advance your career while leavinga lasting legacy.

Position Summary:

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 diverse project types and clear opportunities for professional growth and advancement within the firm.

Essential Job Functions:

The following duties are essential to this role. Reasonable accommodation will be madeto 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.

Requirements / Qualifications:

  • 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.

Physical Requirements:

  • Ability to travel to project sites throughout the Western Coast of the United States, with work primarily performed within 1-2 hours of Portland, Oregon. This position may require up to 15% annual travel, including occasional overnight travel.

  • Ability to perform fieldwork in rugged and/or muddy conditions for extended periods, including walking, standing, bending, and kneeling.

  • Ability to work outdoors in varying weather conditions, including heat, rain, wind, and cold.

  • Ability to lift and carry materials and equipment weighing up to 50 pounds.

  • Ability to sit at a workstation and use a computer for extended periods, up to 8 hours per day, with additional hours as needed.

  • Manual dexterity to use a computer, keyboard, mouse, and other tools.

  • Ability to read and interpret documents.

  • Strong communication skills, both in person and electronically.

Additional Information:

  • This position is based in ourPortland, OR office on a hybrid schedule.

  • This position is scheduled for full-time work (40 hours/week) with a typical schedule of 8:00 am to 5:00 pm Monday to Friday.

  • Additionalhours may berequiredbased on project needs (e.g., early start times and prolonged field efforts).

  • Combination of office-based and outdoor field environments.

Life at Tetra Tech:

Theperksof working at Tetra Tech include:

  • Comprehensive and market-competitivebenefits.

  • 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 opportunitiesfor ongoingprofessional growth.

About Tetra Tech:

Tetra Tech is the leader in water, environment,and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. With25,000 employees working together, Tetra Tech provides clear solutions to complex problems byLeading with Scienceto address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.

Tetra Techis proud to be an Equal Opportunity Employer.Allqualified candidates will be considered without regard to race, color, religion, national origin, age, disability,sex, marital or familial status,status as a protected veteran,orany other characteristic protectedbylaw.

Tetra Tech is a VEVRAA federalcontractorand we request priority referral of veterans.

We inviteapplicationsfrom 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

We thank all applicants for their interest, however, only those candidates selected for interviews will be contacted.

Please no phone calls or agencies.

Additional Information
  • Organization: 100 DIV

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