Mechanical Engineer

Focused • Austin, TX

29d • Onsite

About The Position

Focused Energy is a pioneering fusion energy start-up committed to generating clean electrical energy to responsibly address future global demand. Founded by world-leading laser and plasma physicists together with experienced entrepreneurs, Focused Energy is developing commercial laser-induced inertial fusion technology as a clean, scalable, and economically viable power solution.
Role Summary
The Mechanical Engineer will lead the mechanical design, integration, and installation of all mechanical systems for the TTE project, including mechanical interfaces for the gas gun, diagnostics equipment, support structures, and vacuum subsystems. This role supports multiple development phases, from initial design through testing, operations, and continuous improvement.

Requirements

• Bachelor’s or Master’s degree in Mechanical Engineering or a closely related field.
• 5+ years of mechanical design experience, preferably in scientific instrumentation, precision systems, or R&D environments.
• High proficiency with mechanical CAD tools (Autodesk Inventor preferred; SolidWorks acceptable).
• Experience designing and integrating vacuum systems, chambers, feedthroughs, and mechanical support structures.
• Strong understanding of mechanical tolerancing, GD&T, stability, stiffness, and alignment principles.
• Experience supporting system assembly, installation, and alignment in a technical facility setting.
• Ability to generate detailed manufacturing drawings and interface definition documents.
• Hands-on experience with mechanical testing, metrology equipment, or prototype assembly.
• Experience collaborating with suppliers and fabricators on component builds.
• Eligibility to work in the United States (Austin, Texas).

Nice To Haves

• Proficiency with Inventor, SolidWorks, or equivalent mechanical CAD tools.
• Experience with vacuum systems, chamber design, and sealing technologies.
• Familiarity with precision alignment and mechanical stability control.
• Understanding of scientific instrumentation, gas-dynamic systems, or high-speed mechanical assemblies.
• Knowledge of materials, machining, fabrication processes, and tolerance analysis.
• Experience designing systems for laboratory environments (cleanrooms, vacuum labs).
• Strong ownership of engineering tasks with a practical, hands-on mindset.
• Excellent spatial and mechanical intuition.
• Collaborative, open communicator with good documentation habits.
• Adaptable and comfortable supporting changing project priorities.
• Innovative thinker, able to propose solutions within complex mechanical environments.

Responsibilities

• Develop mechanical subsystem designs and interfaces for TTE.
• Create CAD models, assemblies, and detailed drawings aligned with FE standards.
• Lead the development of vacuum chambers, feedthroughs, mounts, and support structures.
• Support mechanical installation, alignment, and commissioning on-site.
• Conduct mechanical analysis, tolerance reviews, and design optimisation.
• Coordinate with controls, electrical, and laser optics teams to ensure interface compatibility.
• Support ongoing testing, operational readiness, and mechanical modifications as project demands evolve.
• Interact with suppliers, fabricators, and contractors to ensure build quality and delivery.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level