Principal Mechanical FEA Engineer

• Location 10920 West Sam Houston Parkway North, Suite 100, Houston, TX, 77064, United States
• Employee Type Full Time Exempt
• Manage Others No

Amogy is an innovative cleantech startup on a mission to unlock ammonia's potential as a clean energy source. Driven by a vision of a more sustainable future, we've developed carbon-free energy solutions that leverage ammonia as an alternative fuel to decarbonize hard-to-abate sectors, including maritime shipping and stationary power generation. Join our dynamic team as we accelerate the commercialization of our technology and revolutionize the future of energy.

This role is fully onsite at our office in Houston, TX.

We are looking for a highly technical Principal Mechanical Engineer with deep subject matter expertise in high-temperature mechanical system design using metal-alloy components, to execute product development engineering tasks from concept, through detailed engineering and testing, into series production. In this role, you will work closely with cross-functional engineering teams to design, analyze, integrate, and test reactor and separation technologies for Amogy’s next‑generation power solutions.

This is an individual contributor role that requires hands‑on experience independently setting up, executing, troubleshooting, and interpreting FEA models for complex structural and thermo‑mechanical systems.

• Serve as a hands‑on individual contributor responsible for independently building, running, troubleshooting, and interpreting structural and thermo‑mechanical FEA models.
• Lead structural and thermo‑mechanical analysis strategy for mechanical structures and assemblies used in ammonia cracking and separation systems, guiding design optimization through FEA‑led decision making.
• Guide mechanical design maturity from concept through launch by defining analysis plans, evaluating design margins, supporting material selection, informing DFM/DFA tradeoffs, and verifying detailed engineering designs through structural and thermal FEA.
• Partner with mechanical design, CFD, manufacturing, process, and testing teams to translate operating conditions, loads, boundary conditions, and test data into validated structural and thermal analysis models.
• Establish and maintain best practices for structural and thermal FEA, including modeling assumptions, meshing standards, material models, load‑case definition, design allowables, documentation, and peer review process.
• Define and maintain structural integrity requirements for high‑temperature devices, including allowable stresses, deformation limits, fatigue life, creep performance, pressure‑boundary requirements, and thermal cycling durability.
• Present analysis findings and recommendations to peers and management, translating FEA results into clear technical guidance for design and program decisions.

• MS or PhD in Mechanical Engineering, Aerospace Engineering, Applied Mechanics, or a related field, with advanced technical depth in structural mechanics, heat transfer, high-temperature materials, pressure equipment, or coupled thermo‑mechanical analysis.
• 5+ years of experience serving as a technical lead or analysis authority for complex structural or thermo‑mechanical analysis programs, including developing technical approaches, mentoring engineers, and driving implementation of design solutions.
• Experience analyzing or designing hardware exposed to ammonia, hydrogen, syngas, combustion products, or other reactive/high‑temperature environments, including consideration of material compatibility, thermal cycling, pressure containment, and degradation mechanisms.
• Familiarity with coupled CFD-to‑FEA or multiphysics workflows used to translate flow, pressure,…