Mechanical Design Engineer

We are partnering with a cutting-edge advanced nuclear energy company building the next generation of clean, reliable power, helping shape the future of energy by providing dependable, always-on power that supports economic growth while accelerating the transition to a low-carbon world.

We are seeking a Mechanical Design Engineer to support the design, development, and delivery of mechanical systems, structures, and components for advanced nuclear applications. This role will be responsible for developing engineering solutions from concept through production, including design, analysis, prototyping, testing, and commissioning.

Location: Rockville MD

Work Site Expectations: 4-5 days in office

Travel Expectations: up to 10% as needed

Hours: 8:00am-5:00pm ET, Mon-Fri

Key Responsibilities

Develop and evaluate mechanical design concepts for structures, systems, and components used in nuclear facilities and equipment

Define and document design requirements, interfaces, design bases, and acceptance criteria in collaboration with systems engineers and project stakeholders

Perform engineering analyses to verify components and systems meet functional and technical requirements.
Complete structural, thermal, hydraulic, and other engineering calculations using both hand calculations and analytical tools

Develop and refine designs for pressure vessels, piping systems, reactor internals, fuel-handling equipment, and high-temperature materials

Support design integration activities with internal teams, suppliers, and engineering partners

Create and maintain 3D CAD models and engineering drawings

Assess designs for manufacturability, assembly, installation, and maintenance requirements

Prepare engineering deliverables, including calculations, technical reports, design documentation, and drawings

Develop verification and validation (V&V) plans and support qualification of engineering tools and methodologies

Ensure compliance with quality assurance, design control, and configuration management requirements

Participate in design reviews and provide independent technical review of engineering deliverables

Maintain effective communication and professional working relationships with internal and external stakeholders

Support additional engineering activities as required

Minimum Qualifications

Bachelor's degree in Mechanical Engineering or a related engineering discipline

Strong understanding of engineering fundamentals and proficiency in engineering calculations

Experience designing or developing mechanical systems, components, or assemblies

At least one year of hands-on experience delivering hardware, equipment, or manufacturing processes in a production or project environment. Relevant internships, university design teams, or engineering projects will be considered

Experience supporting manufacturing, assembly, testing, or commissioning activities

Proficiency with CAD and Product Lifecycle Management (PLM) software, such as Siemens NX, SolidWorks, Creo (Pro/Engineer), Teamcenter, Windchill, or similar platforms

Preferred Qualifications

Experience within the nuclear power industry

Knowledge of nuclear plant design, construction, commissioning, or operations

Experience working to ASME Boiler & Pressure Vessel Code (Section III and/or VIII)

Familiarity with NRC regulations and licensing requirements for safety-related systems

Experience applying ASME B31.1, ASME B31.3, and other relevant industry standards

Experience specifying and sizing mechanical plant equipment, including piping, HVAC systems, pumps, pressure vessels, valves, fire protection systems, ducting, and structural supports

Hands-on experience with graphite or other non-metallic materials, manufacturing processes, tooling development, or assembly sequencing

Experience overseeing the procurement and manufacture of pressure vessels or large fabricated mechanical components

Ready to tackle complex engineering challenges and bring cutting-edge nuclear technology to life? Apply today.

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Mechanical Design Engineer