Antares · 2 weeks ago
Senior Mechanical Design Engineer - Reactivity Controls
Los Angeles, CA
Full-time
Onsite
Senior Level
$140K/yr - $185K/yr
5+ years expAntares is a company focused on making clean energy abundant from Earth to the Asteroid Belt. The role involves leading the design, development, testing, and validation of mechanical systems for reactor reactivity, ensuring safe operation through collaboration across disciplines.
EnergyIndustrialMachinery ManufacturingManufacturing
No H1B
U.S. Citizen Only
Responsibilities
Design, build, and test the reactor’s control mechanisms, hardware and assemblies
Concept and develop custom actuation solutions, including mechanisms, linkages, interfaces, and instrumentation
Define design criteria, requirements, system architecture, and verification/validation test plans
Collaborate closely with cross-functional teams across thermal, structural, neutronics, controls, and simulation disciplines
Engineer components for high-temperature, high-stress, and radiation environments using metals, ceramics, and other advanced materials
Perform design-for-manufacturability (DFM) assessments and execute tradeoffs across performance, cost, schedule, and risk
Conduct mechanism trade studies, document findings, and present recommendations to senior leadership
Qualification
Required
Bachelor's degree in engineering
5+ years of experience in a full-cycle design engineering roles, encompassing hands-on experience with CAD, analysis, build and test
Experience with kinematic synthesis, pneumatic/hydraulic actuation, mechatronics and instrumentation
Experience with FMEA including structure strength, stability and fatigue failure modes
Ability to work long hours and weekends as necessary to support critical milestones
Preferred
Master's degree in engineering
7+ years of experience in a full-cycle design engineering roles, encompassing hands-on experience with CAD, analysis, build and test
Experience in the Nuclear, Aerospace, or Robotics industries
Experience in a demanding fast-paced development environment
Experience with design engineering tools such as NX, ANSYS or Femap, and other product lifecycle software
Experience with engineering scripting languages such as Python and MATLAB
Company
Antares
Antares Industries is an advanced nuclear energy startup that designs and manufactures adaptable and scalable reactors.
11-50 employees
Funding
Current Stage
Growth StageTotal Funding
$126MKey Investors
Shine Capital
2025-12-02Series B· $71M
2025-12-02Debt Financing· $25M
2024-10-30Series A· $30M
Leadership Team
Julia DeWahl
Co-founder & President
Recent News
2025-12-17
2025-12-09
ClimateHack Weekly
2025-12-06
Company data provided by crunchbase