Optical Engineer
Inertia
Posted: November 5, 2025
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Quick Summary
We are seeking an experienced Optical Engineer to advance high power laser system design and testing capabilities for Inertia’s fusion energy program.
Required Skills
Job Description
Overview:
We are seeking an experienced and innovative Optical Engineer to advance high power laser system design and testing capabilities for Inertia’s fusion energy program. A key element is development of the world’s highest average power pulsed lasers, which will form the ‘unit cell’ of our power plant. In partnership with industry, government and academia, we will build a demonstrator beamline to deliver 10 kJ at 10 Hz with 10% wall-plug efficiency using diode-pumped solid state laser technology (DPSSL).
These positions initially involve the design of optical test facilities, and subsequent co-design of the integrated beamline systems.
Primary Responsibilities:
• Develop creative optical designs for beyond state-of-the-art high-average power laser systems.
• Perform ray-tracing for a wide range of optical systems design using tools such as Zeemax.
• Undertake optical analysis (hot spots, ghosts, stray light, beam profiles).
• Interface with mechanical engineering design teams for integrated systems.
• Create optical prints and work with supply chain.
Qualifications:
• BS or MS in Physics, Photonics, Optical Engineering or related field.
• At least 3 years’ experience in optical design relevant to high energy lasers.
Salary & Benefits:
• The base salary range for this role is $140,000 - $215,000 ; The pay range provided is an estimated base range for this role. Exact compensation may vary based on skills, experience, and education.
• We offer market-competitive compensation and an excellent benefits program, including Medical, Dental, and Vision plans, company-paid holidays, matching 401k, and more!
About Inertia:
Inertia is taking the most direct, scientifically-proven path to commercializing fusion, leveraging the only successful achievement of fusion ignition, using a process that was pioneered at the U.S. Department of Energy’s (DOE) Lawrence Livermore National Laboratory (LLNL). With groundbreaking innovation, transformative technology, and multi-year investment, Inertia is committed to commercializing fusion energy in the next decade.