Antares · 7 hours ago
Test Engineer II / Senior Test Engineer
Los Angeles, CA
Full-time
Onsite
Mid, Senior Level
$112K/yr - $185K/yr
3+ years expAntares is a company focused on making clean energy abundant through advanced nuclear technology. The Test Engineer will design and build test infrastructure for microreactors, develop test plans, and collaborate with cross-functional teams to ensure hardware aligns with testing requirements.
EnergyIndustrialMachinery ManufacturingManufacturing
No H1B
U.S. Citizen Only
Responsibilities
Architect, build, and employ bespoke test stands and rigs for R1 components and assemblies
Develop comprehensive test plans and protocols: instrumentation, execution steps, pass/fail criteria, and data analysis workflows
Build test schedules and ensure alignment with development and business needs
Lead test design and readiness reviews and communicate approach and results with stakeholders
Validate measurement precision and accuracy; procure or design specialized fixtures and sensors as needed
Create schematics and CAD models of test setups and facilities
Define standard processes and workflows for prototype, qualification, and production-grade testing
Provide subject matter expertise on test methods, including mentoring teammates
Participate in root cause investigations and implement corrective actions to prevent repeat failure
Qualification
Required
Bachelor's degree in physics or an engineering discipline
3+ years of hands-on test engineering experience designing and building test rigs and executing thermal and mechanical tests
Proven ability to architect and build test stands from scratch
Experience designing assemblies and test fixtures using CAD
Experience integrating and using test instrumentation (pressure transducers, thermocouples, strain gauges, relays, solenoid valves, etc.)
Experience with LabVIEW, Simulink, or similar test software
Ability to work long hours and weekends as necessary to support critical milestones
Ability to lift 50 lbs
Standing, climbing, bending, grasping, pulling, pushing, and carrying may be required to perform job functions
Preferred
Master's degree or higher in mechanical or aerospace engineering
Experience testing thermal management or heat-rejection systems, or vacuum-relevant components
Experience in mechanical, durability, or materials testing
Leadership experience on a project or research team
Strong project management and cross-disciplinary communication skills
Demonstrated track record of high-impact technical contributions
Experience with part inspection technologies (micrometers, CMM, white light scanning, etc.)
Knowledge of PLM, ERP, and related manufacturing systems
Strong Python or general programming experience
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