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Salary: USD 90,000 - 150,000 / annual
Antares is building mass-producible, inherently safe, deployable microreactors for terrestrial, underwater, and space applications. The company's mission is to make clean energy abundant from Earth to the Asteroid Belt, leveraging advanced nuclear energy to strengthen military capabilities, address climate challenges, and expand humanity's presence in space. Antares has raised over $600M in venture capital and holds hundreds of millions in contracts with military services, NASA, and the Department of Energy.
As a Mechanical Design Engineer I or II in the Mission Engineering team, you will support hardware design and development for nuclear power systems destined for space, the Moon, and Mars. You will own hardware deliverables as part of the larger space nuclear system, driving requirements definition and decomposition through all design phases from concept to Critical Design Review (CDR) and beyond.
Key responsibilities include:
- Owning CAD models, managing configurations, producing drawings, and conducting Design Failure Mode and Effects Analysis (DFMEA)
- Supporting development testing, including test setup, definition, and documentation
- Coordinating closely with nuclear, thermal, structures, manufacturing, and quality teams to ensure system architecture meets mission and product requirements
- Developing clean-sheet designs through hardware procurement and development/qualification testing
- Supporting design reviews and integration/test planning; defining manufacturing plans and generating work instructions
- Owning or supporting design of tooling, ground support equipment, and facility upgrades
- Developing and documenting emerging processes
- Conducting system sizing and first-order engineering analyses
- Taking designs into production with strong GD&T and drawing experience
The role requires full-time, on-site work in Torrance, CA, with flexibility to work long hours and weekends to support critical milestones. You will be part of a team with deep expertise from SpaceX, the White House, the Pentagon, the Department of Energy, MIT, and national laboratories.
REQUIREMENTS:
Basic Qualifications:
- Bachelor's degree in mechanical engineering, aerospace engineering, or related physics-based field
- 1–3+ years of experience in space system/product mechanical design, system configuration, and layout
- Expertise with CAD software (e.g., NX, CATIA)
- Past experience with PLM and other manufacturing planning and management systems
Preferred Qualifications:
- Master's or PhD in mechanical or aerospace engineering, or related physics-based field
- Experience in design, analysis, and integration of space hardware
- Leadership experience on a project or research team
- Strong project management, cross-discipline communication, and interpersonal/collaborative skills
- Exceptional communication skills to convey technical information to non-specialists
- Understanding of fundamentals in fluid systems, solid mechanics, and heat transfer
- Demonstrated track record of initiative and going the extra mile
- Knowledge of materials science, material selections, and material compatibility
- Ability to conduct system sizing and first-order engineering analyses
Additional Requirements:
- U.S. citizenship or eligible immigration status (ITAR compliance required)
- Ability to work long hours and weekends as necessary
