Antares Pharma

Antares Pharma

Reactor Software Engineer I/II

Los Angeles · Mid

Sponsorship not specified$120k-$135kDetected 6 days ago
PythonRustC++Data StructuresCode ReviewGitCI/CDLinuxgRPCEmbedded SystemsSystems EngineeringRoboticsElectrical EngineeringpytestTest AutomationCommunication

About the role

  • This software sits between reactor controls, instrumentation, operator tools, simulations, and external data systems, collecting live signals, streaming telemetry, executing commands, and helping the system respond predictably to off-nominal conditions.
  • You will work across a codebase where the same controls and interfaces can run in simulation, on a bench or hardware test stand, and eventually against full-scale reactor hardware.
  • In this role, you will help define data is acquired, validated, routed, displayed, and recorded.

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 simulation, bench, HIL/HITL, and reactor 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.

Requirements

  • Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Software Engineering, or a related technical field.
  • Software Engineer I: 0-2 years experience
  • Software Engineer II: 2-5 years experience.
  • Familiarity with Linux workflows, containerized environments, and modern Python tooling such as pytest, type checkers, linters, uv, or similar tools.
  • Experience with C, C++, Rust, embedded systems interfaces, binary data formats, or C-style data structures.

Nice to have

  • Strong Python 3 fundamentals, including typed code, dataclasses or equivalent structured data models, exceptions, testing, and idiomatic code organization.
  • Familiarity with concurrent, asynchronous, or multi-process software patterns, such as asyncio, threads, multiprocessing, event loops, IPC, networking, or message passing.
  • Experience integrating software with sensors, controllers, DAQs, instruments, power supplies, embedded systems, simulations, or other hardware-facing interfaces.
  • Strong debugging skills across software, hardware, and system-integration boundaries.
  • Experience with Git and collaborative engineering workflows, including pull requests, code review, and technical documentation.
  • Strong written and verbal communication skills, especially when working across software, electrical, controls, test, and systems engineering teams.
  • U.S. person status or eligibility to obtain required export authorizations under applicable U.S. export control regulations.
  • Experience with hardware or instrumentation software, including DAQs, sensors, serial devices, lab benches, power supplies, controllers, or custom test stands.

Compensation

  • Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.

Company info

  • At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. We're fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space. To achieve our mission, we're building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space.
  • Formed in 2023, the Antares team hails from SpaceX, The White House, MIT, Rigetti Computing, The Air Force, General Atomics, Relativity Space, Ursa Major, and National Laboratories like Los Alamos, Idaho, and Oak Ridge. Antares has raised over $130M in venture capital from top-tier investors and has over $13M in government funding.
  • At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt.
  • We're fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space.
  • To achieve our mission, we're building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space.
  • Formed in 2023, the Antares team hails from SpaceX, The White House, MIT, Rigetti Computing, The Air Force, General Atomics, Relativity Space, Ursa Major, and National Laboratories like Los Alamos, Idaho, and Oak Ridge.
  • Antares has raised over $130M in venture capital from top-tier investors and has over $13M in government funding.

Equal opportunity

  • Antares is an Equal Opportunity Employer.
  • Employment decisions are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.
  • To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.
  • Learn more about the ITAR here https://www.pmddtc.state.gov/?id=ddtc_kb_article_page&sys_id=24d528fddbfc930044f9ff621f961987.

Visa & Work Authorization

  • U.S. person status or eligibility to obtain required export authorizations under applicable U
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This listing is sourced directly from Antares Pharma's careers page and normalized into a canonical job model.