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X-energy

Engineer IV-V Mechanical Systems Design Engineer

X-energy, Rockville, Maryland, us, 20849

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Engineer IV-V Mechanical Systems Design Engineer

at X-energy

X-energy LLC conducts a thorough recruiting process and will never issue offers without an interview to discuss qualifications and responsibilities. All applications will be submitted via our company career page at www.x-energy.com/careers. We will never ask you to provide payment information as part of the recruiting process. If anyone claiming to represent X-energy directs you in a manner otherwise, please contact us at www.x-energy.com/contact-us.

X-energy is seeking professionals with 10+ years of hands‑on experience designing, manufacturing, integrating, and testing mechanical systems, assemblies, and components to join the Nuclear Auxiliary Systems Prototype Development team as a Mechanical Systems Design Engineer. The role is responsible for the engineering design, integration, and commissioning of specialized testbeds used for testing prototype designs to reduce risk and advance Technology Readiness Level (TRL). In addition to testbed development, you will also play a key role in evaluating the performance of prototype designs to facilitate rapid iteration of the design, build, and testing process.

Responsibilities

Lead the engineering design, integration, and commissioning of mechanical testbeds.

Collaborate with cross‑functional teams to evaluate prototype performance and support iterative improvement.

Drive risk reduction and technology readiness through hands‑on testing and analysis.

Qualifications

10+ years of experience in mechanical systems design and testbed development.

Strong background in manufacturing, integration, and testing of mechanical assemblies.

Proficiency with design and simulation tools relevant to mechanical engineering.

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Engineering and Information Technology

Industry

Nuclear Electric Power Generation

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