Mechanical Engineer – Balance of Plant, Plant Systems

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🔥 3 minutes ago

🇺🇸 United States – Remote

💵 $138.3k - $195.3k / year

⏰ Full Time

🟢 Junior

🟡 Mid-level

🧑‍🔧 Mechanical Engineer

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Applied Atomics

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Applied Atomics is a company that develops, builds, and operates medium modular nuclear fission plants (100 MW to 1 GW) as turnkey, on-site power facilities. They offer end-to-end execution — licensing, construction, and operation — with a single power purchase agreement so customers (datacenters, industrial campuses, and utilities) receive dedicated, clean baseload power without running the plant themselves. Applied Atomics uses proven light-water reactor architecture and has secured an exclusive land-based license for the mPower™ small modular reactor technology from BWX Technologies, positioning itself as a B2B provider of site-dedicated nuclear power solutions.

📋 Description

• Support the design, development, and build-out of major thermal-fluid and balance-of-plant systems for a first-of-a-kind nuclear power plant • Work on main steam, feedwater, condensate, air-cooled condenser, heat exchanger, auxiliary, and turbine-side thermal cycle systems • Develop mechanical design concepts, equipment layouts, and piping configurations • Ensure designs comply with design criteria, requirements, and system interfaces • Perform thermal, structural, and fluid analyses using hand calculations and engineering tools • Support system simulation and analytical model development, review, and validation • Create and update CAD models, drawings, and system diagrams • Develop technical documentation, calculations, engineering change packages, PDRs, CDRs, and internal design gates • Coordinate with vendors for pumps, valves, heat exchangers, piping, instrumentation, and packaged equipment • Support manufacturing, assembly, installation, testing, integration, commissioning, hardware bring-up, field testing, and troubleshooting • Interpret and implement ASME, API, NRC, NFPA, and other applicable codes and standards • Collaborate with interfacing system owners and multidisciplinary engineering teams • Support NRC regulatory-submission documentation • Define and manage BOMs, component specifications, configuration control, schedules, budgets, and resource plans • Take end-to-end responsibility for projects from concept through deployment and operations • Improve internal engineering processes, documentation, and tools

🎯 Requirements

• Bachelor’s degree in Mechanical Engineering or related field • 2-4 years of mechanical or fluid system design experience (1-2 years with MS) • Strong understanding of thermodynamics, heat transfer, fluid mechanics, material behavior, and structural mechanics • Experience with CAD tools (NX, SolidWorks, Creo, etc.) • Experience with fluid system PIDs • Ability to perform engineering analysis using hand calculations and/or software • Exposure to industrial fluid systems, piping, pumps/compressors, heat exchangers, and/or turbomachinery • Familiarity with applicable mechanical/industrial codes and standards (ASME, API, NRC, NFPA, etc.) • Strong technical communication and documentation skills • Self-starter and ownership mentality • Eagerness to learn, ask questions, and contribute to a fast-moving, multidisciplinary team • Visa sponsorship is unavailable • Must be able to serve in compliance with U.S. export controls • Nice-to-have: Master’s degree in Mechanical Engineering or related field • Nice-to-have: 4+ years of experience in mechanical, industrial, aerospace, energy, oil & gas, thermal, or plant engineering roles • Nice-to-have: FEA experience with ANSYS, Abaqus, FEMAP, etc. • Nice-to-have: Hands-on hardware builds, field work, testing, and/or commissioning experience • Nice-to-have: Experience supporting design of piping, pressure vessels, heat exchangers, or steam systems

🏖️ Benefits

• Substantial incentive stock plan for all full-time employees • Medical / Vision / Dental (details forthcoming) • Flexible PTO policy • Hybrid and remote work options depending on role • Other benefits to be announced at offer stage

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