Antares · 4 weeks ago
Senior Thermo - Mechanical Engineer (Responsible Heat Pipe Engineer)
Los Angeles
Full-time
Onsite
Senior Level
$140K/yr - $210K/yr
5+ years expAntares is a company focused on making clean energy abundant from Earth to the Asteroid Belt. The Responsible Engineer for Heat Pipes will lead the design and implementation of advanced heat pipe systems for nuclear microreactors, ensuring reliability and safety in extreme environments.
EnergyIndustrialMachinery ManufacturingManufacturing
No H1B
U.S. Citizen Only
Responsibilities
Lead the design, modeling, and analysis of heat pipe systems, ensuring compatibility with R1’s core design, primary heat exchanger, and internal interfaces
Support development of manufacturing methods for prototyping and mass manufacturing of heat pipes
Support development of test articles, stands, and procedures for validating the limits of heat pipe performance and life characteristics
Interface with core, reactor vessel, and primary heat exchanger parts and owners to integrate heat pipes into the overall R1 system
Define operating procedures and limits for heat pipes to inform reactor control system integration
Investigate heat pipe failure and define reliability limits; integrate fixes rapidly
Qualification
Required
Bachelor's degree in engineering or physics
5+ years of experience in high energy hardware (combustion devices, turbomachines, rankine cycles, etc)
Proficiency in thermal modeling software (e.g., COMSOL, ANSYS)
Knowledge of materials science as it applies to alloy selection for heat transfer and structural properties
Ability to work long hours and weekends as necessary to support critical milestones
Preferred
Master's or PhD in Nuclear Engineering, Thermal Sciences, or Mechanical / Aerospace Engineering
Experience focusing on heat pipes or heat transfer systems, preferably in nuclear or high-reliability sectors
Demonstrated knowledge in simulation of high temperature 2-phase flow fields
Demonstrated expertise in heat pipe design, analysis, manufacturing, and test
Strong understanding of nuclear safety standards, testing protocols, and regulatory requirements
Experience in nuclear thermal or other high temperature (500°C+) systems, including prior work with heat pipe technology
Experience with sodium purification and material handling
Exceptional communication skills to work effectively across teams and convey technical information to non-specialists
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