Cryogenics Jobs

A role for an experienced quantum scientist to develop and deploy calibration, control and optimization software for superconducting qubit processors at Q-CTRL's Los Angeles team.

Senior Mechanical Engineer to lead the mechanical design and delivery of next-generation thin-film R&D and manufacturing equipment at Commonwealth Fusion Systems.

Lead SPARC Plant Operations at Commonwealth Fusion Systems to ensure safe, reliable 24/7 operation, maintenance, and continuous improvement of a first-of-a-kind fusion test plant.

Lead the operation, staffing, and safe commissioning of the SPARC Plant as General Manager to drive uptime, scientific progress, and long-term success of a first-of-its-kind fusion facility.

Lead the design and engineering oversight of high‑purity and cryogenic bulk and specialty gas systems to ensure safe, efficient, and compliant infrastructure for Micron’s Boise manufacturing site and global fabs.

Commonwealth Fusion Systems seeks a seasoned Director of Photonics Engineering to lead and grow the photonics engineering team delivering laser, optical, and opto-mechanical diagnostic systems for the SPARC program.

Lead the Instrumentation & Controls engineering team to design, deliver, and operationalize I&C systems for SPARC and next-generation fusion power plants at Commonwealth Fusion Systems.

Commonwealth Fusion Systems is hiring a Director of Magnet Engineering to lead design, delivery, and team growth for HTS magnet systems supporting SPARC and future fusion plants.

Lead the mechanical design and delivery of first‑of‑a‑kind thin‑film R&D equipment for a fast‑moving fusion energy company.

Relativity Space is hiring a Sr. Operations Engineer to lead and execute factory test operations, write test plans, automate procedures, and ensure safe, reliable testing of Terran R at the Long Beach headquarters.

Commonwealth Fusion Systems is hiring a Senior Mechanical Engineer to own and deliver HTS magnet feeder hardware for the SPARC program, driving analysis, design-for-manufacture, and production support.

Mechanical Engineer to design and support structural components and insulation for SPARC TF magnet systems, driving production releases, analysis, and prototyping in an onsite manufacturing environment.

Amentum is hiring a Project Engineer II at Vandenberg AFB to lead engineering oversight, design support, and safety compliance for propellant, cryogenic, and high-pressure systems.

Thea Energy is seeking a hands-on Mechanical Engineering Intern to support prototyping, CAD/FEA, and test-equipment development for its stellarator fusion program in Kearny, NJ.

Lead static-fire and test campaigns on the Solid Rocket Motor team to deliver repeatable, safety-compliant data that accelerates propulsion design and flight readiness.

LSU AgCenter is hiring a Director of Facility Operations to lead safety, maintenance, staffing, and shop operations for the Aquatic Germplasm & Genetic Resources Center in Baton Rouge.

Mission Driven

Social Impact Driven

Passion for Exploration

Reward & Recognition

Lead the design, qualification, and production of flight-critical Starship components—valves, pumps, actuators, and flight-termination hardware—at SpaceX's Hawthorne production site.

Long Wall Company is hiring a hands-on Test & Operations Engineer to lead hardware integration, ground support equipment work, and test/launch operations across multiple California facilities.

Contribute as an applied physics/engineering intern building feedback-controlled fluidic and electromagnetic systems for organ-scale reversible cryopreservation at a Bay Area moonshot company.

Experienced production test engineer wanted to develop and run manufacturing test systems, automate data collection and analysis, and drive root-cause resolution for advanced electro‑optical defense products at Anduril's Lexington facility.

Anduril is hiring a Production Test Engineer in Lexington to develop, maintain, and optimize production test systems and automation for advanced defense hardware and sensor systems.

Relativity Space is hiring an early-career Launch Fluids Engineer to design and commission launch pad propellant and gas systems for Terran R at Cape Canaveral.

Design and own fluid and propulsion-related hardware and ground systems for a fast-growing spacecraft manufacturer based in Playa Vista.