Reactor Software Engineer I–II: Python, HIL & Telemetry

Industrious Ventures; Los Angeles (CA); On-site; USD 120,000 - 160,000; Full time

Job summary

Antares is seeking a Reactor Software Engineer to build software that operates, tests, and interfaces with our first-of-a-kind microreactor and its hardware-in-the-loop environments. This role sits between reactor controls, instrumentation, simulations, and external data systems to ensure safe operation and predictable responses to off-nominal conditions.

You will work across a codebase used in simulation, bench, and full-scale reactor hardware, helping define data acquisition, validation,

Qualifications

• Bachelor's degree in a technical field.
• Experience in hardware-integrated, embedded, or aerospace systems.
• Proficient in Python 3 with typing and testing.
• Familiarity with concurrent or asynchronous patterns.
• Strong debugging across software-hardware boundaries.

Responsibilities

• Develop reactor software for data acquisition, telemetry processing, command handling, state management, fault response, operator interaction, and automated test environments.
• Own features end-to-end, from test specs and interface definitions through implementation, code review, integration, and documentation.
• Build software that can drive both real instruments and in-memory simulations, keeping controls and interfaces consistent across environments.
• Implement runtime control features such as timeline scheduling, event/gate handling, mode transitions, command validation, command feedback, and telemetry streaming.
• Create and maintain clear software interfaces for hardware adapters, telemetry sinks, DAQs, sensors, controllers, operator tools, and external data systems.
• Implement data validation and quality logic so telemetry can be marked as valid, invalid, stale, unavailable, suspect, or otherwise actionable by downstream software and operator tools.
• Develop fault-aware software behavior, including detection, classification, containment, recovery, reset behavior, diagnostics, logging, and observability.
• Write automated tests that validate real system behavior, including hardware-facing workflows whenever practical.
• Support simulation, HIL/HITL, hardware bring-up, integrated reactor testing, and debugging across software/hardware boundaries.
• Collaborate with electrical, embedded, controls, software, test, and systems teams to define interface control documents, communication schemas, data dictionaries, and integration test plans.
• Participate in design reviews, code reviews, test readiness reviews, and root-cause investigations during hardware integration and deployment campaigns.

Skills

Python

Data Modeling

Distributed Systems

Telemetry

Git

C/C++

Rust

Linux

Test Automation

Education

Bachelor's degree

Tools

MQTT

DDS

ZeroMQ

gRPC

Job description

Antares is seeking a Reactor Software Engineer to build software that operates, tests, and interfaces with our first-of-a-kind microreactor and its hardware-in-the-loop environments. This role sits between reactor controls, instrumentation, simulations, and external data systems to ensure safe operation and predictable responses to off-nominal conditions.

You will work across a codebase used in simulation, bench, and full-scale reactor hardware, helping define data acquisition, validation,