Engineering Jobs at Inertia
Inertia has 3 open engineering roles, alongside 5 other open roles.
About Inertia
Inertia is a commercial fusion energy company. It is developing a laser-based fusion power system, including high-power modular lasers, mass-produced fusion fuel targets, and gigawatt-scale power plants, based on the fusion ignition approach demonstrated at the U.S. National Ignition Facility. The company aims to commercialize fusion energy within the next decade.
The open roles
- Optics Manufacturing Development Engineer: Livermore, USD 165k to 225k, posted 20 July 2026.
- Senior Mechanical Design Engineer: Livermore, USD 180k to 240k, Senior, posted 13 March 2026.
- Senior Mechanical Engineer - Fusion Engine Design and Analysis : Livermore, USD 125k to 225k, Senior, posted 19 February 2026.
Also hiring at Inertia
Inertia is also hiring in finance and legal (2), hardware and science (2) and operations (1).
Its roles are in Livermore, CA, US (8).
What engineering work involves at an early-stage startup
You own whole parts of the product rather than one service inside a large system. Expect to write the code, deploy it, and get paged when it breaks. Reviews are quick and the codebase is small, so a decision made on Tuesday can ship on Thursday.
Experience level
Open roles by the experience the posting asks for.
Questions people ask
What else is Inertia hiring for?
Finance and legal, hardware and science, and operations: 5 more roles.