Top 6 Senior environmental scientist Jobs in Washington State

Senior Environmental Scientist
HDR —Seattle, WA
- $106,820 - $183,120 a year
- Full-time
- Analysis skills
- Driver's License
- Bachelor's degree
- Paid holidays
- Disability insurance
Senior Scientist
GHD —Seattle, WA
- $85,819 - $143,031 a year
- Hybrid work
- Microsoft Outlook
- Bachelor of Science
- Engineering
- Paid holidays
- Paid time off
Senior Regulatory Technical Specialist
Hanford Tank Waste Operations & Closure, LLC (H2C) —Richland, WA
- $145,150 - $214,288 a year
- Full-time
- Microsoft Excel
- Bachelor of Science
- Public speaking
- Disability insurance
- Health insurance
Senior Geologist/Senior Environmental Scientist/Professional Engineer
HYDRO-ENVIRONMENTAL TECHNOLOGIES INC —Seattle, WA
- $75,000 - $110,000 a year
- Full-time
- Hybrid work
- Analysis skills
- Senior level
- Professional Engineer
- Profit sharing
- Health insurance
Quick Apply
Senior Wetland Ecologist
WSP —Redmond, WA
- $74,200 - $146,900 a year
- Full-time
- Clean driving record
- Management
- 5 years
- Paid parental leave
- Disability insurance
Senior Stormwater Project Specialist (Environmental Specialist 4)
State of Washington Dept. of Ecology —Lacey, WA
- $69,348 - $93,288 a year
- Full-time
- Hybrid work
- Office
- Master's degree
- Driver's License
- Paid training
- Wellness program

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Microsoft 365 and Records Support Manager, Environmental Health (Project/Program Manager III)
King County —Seattle, WA
Coordinate with impacted teams to plan and implement updates to existing use of MS365 tools, and initiate new uses of MS365 tools.
$110,087.54 - $139,542.21 a year
4d
Product Manager
Coleman Environmental Engineering Inc. —Spokane, WA
Valid U.S. driver's license. Identify technical risks early and drive solutions across engineering, design, and operations.
From $180,000 a year
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Senior Environmental Scientist
Los Alamos Technical Associates, Inc. —Columbus, OH
Demonstrated experience leading technical portions of proposals, including scopes, staffing assumptions, technical approaches, and cost estimates.
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Senior Lab Technician
Cirba Solutions US Inc —Lancaster, OH
Bachelor's Degree in Chemistry, Environmental Science, Biological Science, Chemical Engineering, or related scientific field preferred.
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Senior Environmental Scientist

HDR -
Seattle, WA

Apply Now

Job Details

Full-time
$106,820 - $183,120 a year

Benefits

Paid holidays
Disability insurance
Health insurance
Dental insurance
Tuition reimbursement
Parental leave
Employee assistance program
Vision insurance
Life insurance
Referral program
Retirement plan

Qualifications

Environmental Impact Assessment (EIA) report writing
Data analysis reporting
Presentation software
Environmental compliance
Technical report writing
Bachelor's degree
Environmental data analysis
Managing projects
Research regulatory compliance
Legal compliance
Environmental law in public permitting
Data analysis software

Full Job Description

Senior Environmental Scientist

- (193576)

At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our impact on the world?

At HDR, our employee‑ownership model shapes everything we do, including how we support and care for our people. Our diverse service lines, including Water, Architecture, Building Engineering Services, Field Services, Power, Waste, Industrial, and Transportation reflect our commitment to shaping resilient, sustainable, and forward‑thinking communities around the world. Across these disciplines, our teams design and deliver solutions that safeguard public health, enhance quality of life, power innovation, and drive responsible growth. Whether advancing clean water, creating healing and learning environments, engineering next‑generation facilities, or building the infrastructure that moves people and energy, our work is rooted in technical excellence and a shared sense of purpose. Our employee‑owners collaborate across specialties, combining creativity, precision, and deep expertise to solve the most complex challenges facing our clients and communities.

Watch Our Story:' https://www.hdrinc.com/our-story'

Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world.

In the role of Senior Environmental Scientist, we'll count on you to:

Lead and direct wetland and stream delineations, functional assessments, wildlife surveys, and habitat evaluations while managing task level scope, budgets, and schedules.
Oversee preparation of natural resources permitting applications at federal, state and local level (e.g., Clean Water Act permitting Section 404/401 and WA State/local natural resources permitting)
Lead development of critical areas reports, wetland and water delineation reports, mitigation and monitoring plans and documents to address project impacts
Contribute as an author and/or strategic advisor on natural resource documents such as NEPA/SEPA documents, and biological evaluations/assessments (BAs).
Provide quality assurance / quality control (QA/QC) review of technical documents from disciplines noted above.
Support project managers and other technical staff with client-agency communications.
Develop proposals for biological-related tasks (preparing scopes, schedules, and budgets).
Effectively collaborate with junior and mid-level environmental staff, planners, project engineers, GIS specialists, and clients to achieve regulatory compliance on a variety of projects.
Perform other related duties as needed

Preferred Qualifications

Field experience with wetland and wildlife species and habitats in Washington State.
Applied knowledge of ecological assessment, environmental impact analysis, environmental due diligence studies, natural/biological resources management and
Strong organization skills and ability to work in a fast-paced work environment with changing deadlines and priorities.
Demonstrable technical writing/editing ability, commitment to quality in both work processes and products and willingness to assume new roles are critical.
A demonstrated commitment to safety and quality, and an attitude and commitment to being an active participant of our employee-owned culture are essential.
Candidates will need to travel for specific project assignments.
Field data collection expertise in wildlife species, habitat, and wetlands and streams using GPS units
Professional Wetland Scientist (PWS)
Experience with GPS units, GIS software and webmaps, to support data collection, mapping, and reporting. .
Local candidates preferred
Valid Washington State Driver’s license and ability to travel locally on a regular basis to conduct field work.

Required Qualifications

Bachelor's degree in Environment Science or closely related field
10 years experience in complex environmental planning/compliance projects
Demonstrated knowledge of the NEPA process
Experience managing large, complex EIS documents for transportation, large facility, land management, or other infrastructure projects
Technical expertise in the design, implementation, interpretation and presentation of data for environmental studies and investigations in specialized discipline
Proficient with MS Office
Self-starter with excellent writing and communication skills
Strong conceptual, organizational, problem-solving and research abilities
Ability to work independently and as part of a team
Staff management experience beneficial

What We Believe
HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organizational trust and connects us closer to the clients and communities we serve.

Our Commitment
As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.

Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees.

We provide a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time away, parental leave, paid holidays, a retirement savings plan with employer match, employee referral bonus and tuition reimbursement. The expected compensation range for this position depends upon skills, experience, education and geographical location. (Stated benefits are for full-time regular positions. Temporary and part-time roles eligible for limited benefits.) Seattle/Bellevue/Everett, WA: $128,184 - $183,120; Gig Harbor, WA: $117,502 - $167,860; Olympia, WA: $106,820 - $152,600

Primary Location:

United States-Washington-Seattle

Other Locations:

United States-Washington-Everett, United States-Washington-Olympia, United States-Washington-Bellevue, United States-Washington-Gig Harbor

Industry:

Environment/Sciences

Schedule:

Full-time

Employee Status:

Regular

BusinessClass:

Environmental Planning

Job Posting:

Jun 8, 2026

Apply Now

Refine Your Search

senior environmental scientist jobs in washington state

Senior Environmental Scientist

Senior Scientist

Senior Regulatory Technical Specialist

Senior Geologist/Senior Environmental Scientist/Professional Engineer

Senior Wetland Ecologist

Senior Stormwater Project Specialist (Environmental Specialist 4)

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