Fluid Mechanics Jobs

Contribute to nuclear power projects as an entry-level Mechanical Engineer focused on thermodynamics, thermal systems, and equipment sizing within a hybrid work environment at Sargent & Lundy.

Hgen is looking for a Senior Mechanical Design Engineer to own the mechanical design, prototyping, and commercialization of core components for its advanced alkaline electrolyzer.

Experienced mechanical engineer needed to lead licensing-basis evaluations and thermal-hydraulic analyses for nuclear power uprate projects at Sargent & Lundy’s Chattanooga office.

Experienced mechanical engineering manager needed to lead nuclear power uprate projects, manage technical teams, and deliver client-facing engineering solutions at Sargent & Lundy’s Richland office.

Senior mechanical engineer needed to lead system/component evaluations, heat balance analyses, and technical deliverables for nuclear power uprate projects at Sargent & Lundy's Minneapolis office.

Experienced mechanical engineer with nuclear power uprate and turbomachinery experience needed to lead technical evaluations and client engagements at Sargent & Lundy's Richmond office.

Sargent & Lundy seeks a Mechanical Engineer III in Chattanooga to perform thermal and mechanical system analysis, equipment sizing, and technical reporting for nuclear power projects on a hybrid schedule.

Sargent & Lundy seeks an experienced mechanical engineer in Chattanooga to lead mechanical analyses and licensing-basis evaluations for nuclear power uprate projects.

Sargent & Lundy's Nuclear Power Group seeks a Mechanical Engineer 3 to apply expertise in thermodynamics, heat transfer, and power-plant mechanical systems supporting nuclear projects from the Chattanooga office.

Lead technical power uprate projects within Sargent & Lundy’s Nuclear Power Group, applying senior mechanical engineering expertise to increase plant output and support clients across nuclear systems.

Graco seeks a hands-on Mechanical Engineering Intern to support product development, testing and analysis at its David Koch Center in Rogers, MN.

AECOM is hiring a Mechanical Engineering Intern in Virginia Beach to support multidisciplinary infrastructure projects with hands-on design and analysis work while gaining professional experience.

Blue Origin is hiring Summer 2026 undergraduate interns to support fluid systems design, analysis, and test activities on-site in Seattle.

Mechanical Engineering Intern for Sargent & Lundy’s Nuclear Power Group to support design, calculations, and project reporting for nuclear and power-plant engineering projects.

Beyond New Horizons seeks an early-career Mechanical Engineer to operate and sustain wind tunnel test beds at Arnold AFB, executing test plans, troubleshooting systems, and supporting high‑hazard aerospace testing for the U.S. Air Force.

Relativity Space is hiring a Propulsion Components Test Engineer II to design, commission, and execute component acceptance tests and test automation for Terran R engine components on the second shift.

Early-career mechanical engineer needed to design, prototype, and test spaceflight fluid/thermal hardware for NASA and commercial missions at IRPI.