Senior Water Resources Engineer

Otak is seeking a Senior Water Resources Engineer to provide technical leadership on complex water resources projects, including stream and river restoration initiatives that enhance watershed health and community resilience. Located in either our Portland, OR, or Vancouver, WA office, this role will lead the planning, design, and delivery of hydraulic engineering, restoration, stormwater, and fish passage projects across Oregon and Washington.

• Provide technical excellence and thought leadership in the areas of river/stream restoration, fish passage design, bridge hydraulics, and scour countermeasure design.
• Perform hydrologic and hydraulic modeling.
• Prepare construction documents in support of transportation and restoration projects.
• Prepare construction drawings, specifications, and cost estimates.
• Create design and permitting reports.
• Collect and analyze data.
• Prepare studies and master plans.
• Develop technical approaches, scopes, schedules, and budgets for proposals.
• Perform construction engineering and observation.

• A Master’s degree in Civil or Environmental Engineering, with an emphasis on Water Resources or Hydraulic Engineering, or a similar discipline, is preferred.
• 10+ years of experience in hydraulic engineering.
• A valid Professional Engineer (PE) license is required.
• Expertise in water resources models such as HEC-RAS and SRH-2D.
• Experience hydrologic and hydraulic modeling.
• Proficiency with Microsoft Office Suite, ArcGIS, and AutoCAD or Micro Station.
• Ability to independently prioritize, manage, and deliver multiple projects with simultaneous deadlines in a multi-disciplinary environment.
• Strong written and verbal communication skills.

Salary Range: $119,

Our total rewards program includes competitive salaries, discretionary performance bonuses, comprehensive insurance coverage (medical, dental, vision, life, disability), a 401(k) retirement match, a hybrid work schedule, paid time off, a commuter allowance, professional registration support, and relocation assistance.

We are an equal opportunity employer committed to cultivating a workplace that is inclusive, equitable, and respectful. We do not tolerate discrimination based on race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic.

We provide reasonable accommodation for individuals with disabilities, including pregnant employees, to ensure an accessible and supportive work environment. If you require assistance or accommodations during the application process or in the workplace, please contact our People Services Department at

Join us in shaping a more inclusive future!