Senior Environmental Scientist

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. Our employee‑ownership model shapes everything we do, including how we support and care for our people. Our diverse service lines across water, architecture, building engineering, field services, power, waste, industrial, and transportation reflect our commitment to shaping resilient, sustainable, and forward‑thinking communities 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 levels (e.g., Clean Water Act permitting Sections 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 QA/QC review of technical documents from the 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).
• 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.

• 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.
• Strong organization skills and the ability to work in a fast‑paced environment with changing deadlines and priorities.
• Demonstrable technical writing/editing ability and a commitment to quality in both processes and products.
• A demonstrated commitment to safety, quality, and participation in our employee‑owned culture.
• Travel for specific project assignments.
• Field data collection expertise in wildlife species, habitat, and wetlands and streams using GPS units.
• Professional Wetland Scientist (PWS) designation.
• Experience with GPS units, GIS software, and webmaps to support data collection, mapping, and reporting.
• Local Washington State candidates preferred.
• Valid Washington State driver’s license and ability to travel locally on a regular basis.

• Bachelor’s degree in Environmental Science or closely related field.
• 10 years of 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 a specialized discipline.
• Proficiency 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.
• An attitude and commitment to be an active participant of our employee‑owned culture is a must.

We provide a comprehensive benefits package that promotes employee ownership, health, performance, and success, including medical, dental, vision, short‑ and long‑term disability, life insurance, employee assistance program, paid time away, parental leave, paid holidays, a retirement savings plan with employer match, employee referral bonus, and tuition reimbursement.