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Senior Mechanical Engineer

Job in Austin, Travis County, Texas, 78716, USA
Listing for: NextGenEnergyJobs
Full Time position
Listed on 2026-07-25
Job specializations:
  • Engineering
    Mechanical Engineer, Product Engineer, Manufacturing Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below

Last Energy is a pioneering US technology company deploying next-generation modular nuclear power plants.

Key Responsibilities
  • Lead design and execution of critical mechanical systems and components that enable scalable, manufacturable nuclear power plants
  • Collaborate daily with the CEO and executive team on the company’s most urgent engineering priorities—your technical insights will directly inform product strategy and deployment timelines
  • Drive concept development, detailed CAD modeling, and rapid prototyping of novel industrial systems
  • Perform structural, thermal, and fluid analyses using advanced simulation tools (FEA, CFD) to validate and optimize designs
  • Design and analyze complex mechanical assemblies
  • Integrate mechanical, electrical, and control systems into cohesive plant-level solutions
  • Oversee prototype fabrication, assembly, and testing , both in-house and with external partners
  • Develop fixtures, tooling, and manufacturing aids to streamline build and test operations
  • Continuously optimize designs for manufacturability and deployment speed , balancing performance with cost and scalability
  • Operate autonomously, driving projects from concept to reality in a startup culture that values speed, ingenuity, and accountability
Requirements
  • Bachelor’s degree in Mechanical Engineering or a related field (advanced degree a plus)
  • 4+ years of hands-on mechanical design and analysis experience in high-growth, high-urgency environments (startup or advanced manufacturing preferred)
  • Deep proficiency with CAD tools (Solid Works, AutoCAD, or equivalent)
  • Demonstrated expertise in FEA and CFD using software such as ANSYS, LS-DYNA, Nastran, or similar.
  • Strong foundation in materials science, stress analysis, and thermal/fluid systems
  • Proven ability to turn concepts into tested prototypes quickly , with minimal oversight
  • Exceptional communication and collaboration skills , especially when interfacing with executives and cross-functional teams
  • A bias toward action , creative problem solving, and the drive to own complex problems end-to-end
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Position Requirements
10+ Years work experience
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