Test Equipment Development Engineer; HIL and Test Equipment

CHAOS Industries is redefining modern defense with a multi-product portfolio that gives the ultimate advantage—domain dominance. The company's products are powered by Coherent Distributed Networks (CDN™), empowering warfighters, commercial air operators, and border protection teams to act faster, adapt rapidly, and stay ahead of evolving threats.

CHAOS Industries was founded in 2022 and has raised a total of $1 billion in funding from leading investors, including 8VC, Accel, and Valor Equity Partners. The company is headquartered in Los Angeles, with offices in Washington, D.C., San Francisco, San Diego, Seattle, and London. For more information, please visit

We are seeking a Special Test Equipment (STE) Designer responsible for the full lifecycle of interceptor test systems — from requirements analysis and qualification strategy through physical design, hardware build, and Low-Rate Initial Production (LRIP) deployment.

This role owns the realization of the interceptor test ecosystem across:

• Qualification fixtures
• Production acceptance stations

You will ensure that test systems provide rigorous requirements verification while also being physically robust, scalable, maintainable, and aligned with production rate targets. This is not solely a test planning role. It is a design–build–deploy ownership role.

• Test Requirements & Architecture Ownership:
  Derive test equipment functional requirements from system and subsystem specifications.
• Test Requirements & Architecture Ownership:
  Establish traceability between interceptor requirements and test coverage.
• Test Requirements & Architecture Ownership:
  Define Subassembly test strategies.
• Test Requirements & Architecture Ownership:
  Define Qualification test configurations.
• Test Requirements & Architecture Ownership:
  Define Production acceptance test philosophy.
• Test Requirements & Architecture Ownership:
  Define Fault-injection and edge‑case coverage approaches.
• Test Requirements & Architecture Ownership:
  Develop interface control documents (ICDs) between product and test systems.
• Test Requirements & Architecture Ownership:
  Balance verification rigor with cycle time, cost, and rate considerations.
• Physical STE Design & Hardware Realization:
  Design complete STE hardware systems including Mechanical fixtures.
• Physical STE Design & Hardware Realization:
  Design complete STE hardware systems including Electrical interface panels.
• Physical STE Design & Hardware Realization:
  Design complete STE hardware systems including Breakout harnesses.
• Physical STE Design & Hardware Realization:
  Design complete STE hardware systems including Load simulators.
• Physical STE Design & Hardware Realization:
  Design complete STE hardware systems including Signal conditioning hardware.
• Physical STE Design & Hardware Realization:
  Design complete STE hardware systems including Test racks and enclosures.
• Physical STE Design & Hardware Realization:
  Generate full technical data packages:
  Schematics.
• Physical STE Design & Hardware Realization:
  Generate full technical data packages:
  Wiring diagrams.
• Physical STE Design & Hardware Realization:
  Generate full technical data packages:
  Harness drawings.
• Physical STE Design & Hardware Realization:
  Generate full technical data packages:
  Mechanical CAD models.
• Physical STE Design & Hardware Realization:
  Generate full technical data packages:
  Assembly documentation.
• Physical STE Design & Hardware Realization:
  Select and integrate instrumentation (DAQ, power supplies, RF equipment, environmental interfaces).
• Physical STE Design & Hardware Realization:
  Design safe high‑voltage, high‑current, and energetics‑compatible test interfaces as required.
• Hands‑On Build &…