Senior Mechanical Engineer / Program Manager

The Opportunity:  Tetra Tech is adding a Senior Mechanical Engineering Program Manager to our Infrastructure Design Team. For this role, we are open to hybrid work schedules in our Bellevue or Seattle, WA offices. Why Tetra Tech:  At Tetra Tech, we are Leading with Science to solve the world’s most complex challenges. Our industry-leading experts in engineering and consulting are committed to driving positive change in communities around the world. For 60 years, we have been at the forefront of innovation and sustainability. Today we stand as a market leader, offering cutting-edge solutions in water, environment, energy, and international development. Our work has improved more than 625 million lives around the world.  Your Impact:  Join Tetra Tech to make a real difference.  Our work leverages cutting-edge technologies, advanced analytics, and the expertise of world-class scientists and engineers to create meaningful change around the world. Discover your full potential – join us to advance your career while leaving a lasting legacy.  Position Summary:  As a Senior Mechanical Engineering Program Manager in our Infrastructure Design Center, you will lead mechanical engineering and program-management efforts while driving business development. As Program Manager, you’ll set technical direction and lead project teams on high-profile inland navigation locks, dams, pump stations, ports, fisheries, and other water-related projects. You will analyze and troubleshoot existing mechanical systems and develop drawings and specifications for hydraulic power units, gates, valves, bulkheads, pumps, piping, cranes, hoists, and related equipment. Projects often involve hydroelectric facilities, dams, navigation locks, fish passage, flood control, and port infrastructure. Join our multidisciplinary team to lead signature infrastructure programs - shaping solutions and advancing your career. Essential Job Functions: The following duties are essential to this role. Reasonable accommodations will be made to enable individuals with disabilities to perform these functions. Lead business development efforts by identifying opportunities, assembling capture teams, leading proposal development, and supporting strategic marketing and client relationship activities. Direct project proposal development: defining technical approach, scope, schedule, staffing, and budgets. Manage program schedules, budgets, resource allocation, and project administration (reports, progress updates, cost tracking, invoicing). Provide senior technical leadership and final technical sign‑off; resolve complex technical issues and act as the project technical point of contact. Oversee and approve engineering deliverables—drawings, calculations, specifications—to ensure accuracy, completeness, and compliance with codes, standards, regulations, and company procedures. Lead mechanical equipment selection, sizing, and specifications to meet performance, technical, and budget requirements. Establish and enforce design quality‑control processes and coordinate multi‑discipline design integration (mechanical, electrical, structural, civil). Manage coordination with subconsultants, clients, permitting agencies, and other external stakeholders to advance project objectives. Provide day‑to‑day technical direction, assign tasks, monitor team performance, and deliver training; mentor and coach junior mechanical engineers. Promote and ensure adherence to company health, safety, and environmental policies across projects. Conduct site and client visits for design validation, coordination, commissioning, or troubleshooting; domestic and international travel as required. Required Qualifications:  Bachelor’s degree in Mechanical Engineering. A minimum of 20 years of professional experience in mechanical engineering. Demonstrated experience in the design and analysis of mechanical equipment and systems for water resources and navigation structures (e.g., hydraulic power units, gates, valves, bulkheads, pumps, piping, cranes, hoists). Active Professional Engineer (PE) registration in Mechanical Engineering. Demonstrated business development experience: identifying opportunities, leading capture efforts, and proposal development. Proven experience directing engineering teams in the development of construction documents, specifications, technical reports, and design deliverables. Strong working knowledge of industry codes and standards (e.g., ASME, ASTM, NEMA). Demonstrated proficiency with finite element and design tools such as SolidWorks, ANSYS, and Inventor. Experience in stress analysis and structural mechanics. Excellent analytical, written, and verbal communication skills, demonstrated through professional experience and technical deliverables. Ability to use Microsoft products such as Word, Excel, Teams and Project. Preferred Qualifications:  Master’s degree in Mechanical Engineering or related field. Experience in a multi-disciplinary design firm or organization with client-facing responsibilities. Experience with dams, navigation locks, fish passage facilities, flood control structures, hydroelectric facilities, and/or port facilities. Understanding of U.S. Army Corps of Engineers (USACE) design standards and practices. Project management experience, including developing project scope, schedule, budget, and client management. Physical Requirements:  Ability to travel for field visits and construction observations as needed. Travel is estimated to be up to 10% yearly (occasional overnight travel). Ability to stand or walk for long periods during field visits, including the ability to walk upstairs and climb ladders. Ability to work outdoors in a range of weather conditions (heat, rain, wind, cold, snow) during field visits. Ability to sit at a workstation and use a computer for extended periods of time (up to 8 hours/day). Additional hours may be required based on project needs. Manual dexterity to use a computer mouse, keyboard, and other tools. Visual acuity to read and interpret detailed drawings and technical documents. Ability to communicate effectively in-person and via electronic means. Additional Information  For this role, we are open to hybrid work schedules in our Bellevue or Seattle, WA offices. This position is scheduled for full-time work (40 hours/week) with a typical schedule of 8:00am to 5:00pm Monday to Friday. Additional hours may be required based on project needs. The salary range for this position is approximately $140,000 to $205,000 depending on education, qualifications, experience, and work location. Life at Tetra Tech:  The perks of working at Tetra Tech include:  Comprehensive and market-competitive benefits.  Merit-based financial rewards.  Employee stock purchase program. Flexibility and company-wide commitment to work/life balance.  Collaborative team atmosphere that values the contributions of all employees.  Learning and development opportunities for ongoing professional 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. With 30,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition. Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sex, marital or familial status, status as a protected veteran, or any other characteristic protected by law. Tetra Tech is a VEVRAA federal contractor and we request priority referral of veterans. We invite applications from all interested parties. Explore our open positions at Follow us on social media to learn more about our people, culture, and opportunities: LinkedIn: @TetraTechCareers X (Twitter): @TetraTechJobs Additional InformationOrganization: 100 DIV