Environmental Scientist

HDR is a leading design, engineering, and construction firm committed to building resilient, sustainable communities.

• Collaborate with a team of scientists to conduct wetland and stream delineations and functional assessments, vegetation surveys, wildlife surveys, and other field activities in urban and remote settings.
• Prepare written environmental reports including wetland and stream delineation reports, critical areas reports, biological assessments, monitoring reports, and develop mitigation options, plans and documents to address project impacts.
• Prepare documentation to support critical areas regulations, Endangered Species Act consultation, Clean Water Act Section 404 and 401 permitting, WDFW Hydraulic Project Approvals, local land use permits, and other state/local permits.
• Work on a wide variety of environmental compliance and natural resources projects as they relate to water resources, transportation and development projects.
• Work under the supervision of mid‑level and senior environmental scientist and water resource engineers.
• Take responsibility for assisting with environmental permits, NEPA documentation, biological assessments and other environmental compliance documentation.
• Assist senior and mid‑level scientists in field work associated with the collection of natural resource data.
• Perform other duties as needed.

• 2+ years of experience managing and/or conducting analyses in support of biological and/or environmental projects.
• Understanding of common plant species in the Pacific Northwest, soils, hydrology, and aquatic ecosystems.
• Experience with wetland delineations using Western Mountain Valleys Coast and Arid West regional supplements to the Corps of Engineers wetland delineation manuals.
• Wetland Professional In Training (WPIT) certification, or ability to obtain.
• Experience with GPS units, GIS software and webmaps, to support data collection, mapping, and reporting.
• Qualified WSDOT Biological Assessment Author.
• Demonstrated familiarity with Federal and/or Washington state/local regulations.
• Proficiency in Adobe Acrobat and Microsoft Office products (Outlook, Word, Excel, PowerPoint).
• Ability to work independently and collaboratively in a team environment with multiple technical disciplines.
• Ability to interpret and analyze data, proactively identify, and solve problems.
• Strong organization skills and ability to work in a fast‑paced work environment with changing deadlines and priorities.
• Ability to complete fieldwork that may include manual labor, adverse weather conditions and/or work on irregular and steep terrain.
• Valid Washington State Driver’s license and ability to travel locally on a regular basis to conduct field work. Demonstrated commitment to safety and quality.
• Local candidates are preferred.

• Bachelor’s degree in Environmental Sciences or a closely related field.
• Knowledge of wetland delineation, field investigation techniques, and agency coordination requirements.
• Excellent writing and communication skills.
• MS Office experience.
• An attitude and commitment to being an active participant of our employee‑owned culture is a must.

We provide a comprehensive benefits package including medical, dental, vision, short and long‑term disability, life insurance, employee assistance program, paid time away, parental leave, paid holidays, retirement savings plan with employer match, employee referral bonus, and tuition reimbursement. For full‑time positions in Seattle, WA, the compensation range is $80,168 - $89,148.

Seattle, Washington, United States.

Environment/Sciences.

Full‑time.

Regular.

February 27, 2026.

At HDR, we are committed to the principles of employment equity. We are an affirmative action and equal opportunity employer. We consider all qualified applicants, regardless of criminal histories, arrest and conviction records.