Senior Test Engineer - Thermal Systems & Rigs

Antares; Los Angeles (CA); On-site; USD 112,000 - 185,000; Full time

Job summary

Antares seeks a Test Engineer II or Senior Test Engineer to design and own test infrastructure for the R1 microreactor, developing end-to-end test plans from concept to data analysis across heat rejection, power distribution, thermal management, and mechanical systems.

You will document testing best practices, collaborate with cross-functional teams, validate measurement accuracy, and mentor teammates while supporting critical milestones.

Qualifications

• Bachelor's degree in physics or an engineering discipline.
• 2+ years of hands-on test engineering experience.
• Experience designing assemblies and test fixtures using CAD.
• Experience integrating and using test instrumentation (pressure transducers, thermocouples, strain gauges, relays, solenoid valves, etc.)

Responsibilities

• Architect, build, and employ bespoke test stands and rigs for heat pipe 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.

Skills

Test engineering

Python

CAD

LabVIEW

Data analysis

Project management

Education

Bachelor's degree in physics or engineering

Master's degree in mechanical or aerospace engineering

Tools

CMM

White light scanner

PLM/ERP systems

Job description

Antares seeks a Test Engineer II or Senior Test Engineer to design and own test infrastructure for the R1 microreactor, developing end-to-end test plans from concept to data analysis across heat rejection, power distribution, thermal management, and mechanical systems.

You will document testing best practices, collaborate with cross-functional teams, validate measurement accuracy, and mentor teammates while supporting critical milestones.