Thea.Energy
Thea.Energy5mo ago

Senior Mechanical Engineer

United StatesKearnyFull-timesenior
EngineeringMechanical EngineerTrades & Skilled Labor
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Quick Summary

Overview

About Thea Energy: Thea Energy is leveraging recent breakthroughs in stellarator physics and engineering to create a faster and simpler approach to commercializing fusion energy.

Technical Tools
EngineeringMechanical EngineerTrades & Skilled Labor
About Thea Energy:  
Thea Energy is leveraging recent breakthroughs in stellarator physics and engineering to create a faster and simpler approach to commercializing fusion energy. The company is reinventing the stellarator using computer-controlled arrays of planar coils thereby replacing the intricate, complex modular magnets required in all other stellarator architectures. Thea Energy is on a mission to create a limitless source of zero emission energy for a sustainable future.  
 
Position Overview:
Thea Energy is looking for experienced, highly motivated mechanical engineers to join its rapidly growing team. Mechanical engineers will have ownership of the mechanical design and development of primary and secondary components and subsystems in the development of Thea Energy’s stellarator fusion systems. You will be responsible for structural and thermomechanical design, manufacturability, development, and commissioning of these systems. The Thea Energy team is comprised of driven, creative, and fun individuals passionate about solving complex problems.
  • Have ownership of the design and development of primary and secondary mechanical fusion components and subsystems
  • Work with core system-level development teams to define prototyping requirements
  • Produce mechanical engineering designs, drawings, specifications, and parameters from first principles with appropriate tolerances for vendor quoting and manufacturing
  • Design tooling for assembly
  • Perform thermal, structural, and electromagnetic analysis and simulation using Ansys and COMSOL
  • Incorporate design for manufacturing principles and support first builds
  • Support the implementation of tooling and manufacturing
  • Design and execute qualification testing
  • Track and report results and progress against program goals and milestones
  • Communicate and collaborate with internal and external stakeholders
  • Mentor junior engineers
  • Minimum of a bachelor’s degree in mechanical engineering, aerospace engineering, physics, or related fields
  • Minimum of 5 years of experience
  • Extensive experience as a lead designing, building, and commissioning custom systems
  • Experience in mechanical engineering using CAD software (e.g. Solidworks, CATIA, NX, etc.)
  • Management of complex assemblies with multiple contributors
  • Experience specifying machining, welding, and/or fabrication requirements
  • Ability to mentor junior engineers in methods to decompose complex problems, and review that work
  • Ability to take initiative and guide the design and analysis of complex components and systems with the aid of peers and team members
  • Ability to execute and flourish in a fast-paced, rapidly changing environment
  • Familiarity with GD&T (ASME Y14.5) & Drawing Standards
  • Experience owning systems or complex sub-systems
  • Comfortable working to aggressive deadlines
  • Exceptional work ethic
  • Strong team member with clear communication and collaboration skills
  • Innate desire to learn, innovate, and critique ideas including one’s own
  • Salary range $110,000-$180,000
  • Comprehensive health benefits (e.g. medical/dental/vision)
  • Employee equity stock options
  • 20 days PTO

    • Listing Details

    Posted
    November 23, 2025
    First seen
    March 26, 2026
    Last seen
    April 22, 2026

    Posting Health

    Days active
    27
    Repost count
    0
    Trust Level
    31%
    Scored at
    April 23, 2026

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    Thea.Energy
    Thea.Energy
    lever
    Employees
    750
    Founded
    2022
    Domain
    thea-energy.com
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    Thea.EnergySenior Mechanical Engineer
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