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# Principal Software Engineer

- **Company:** Heaviside Industries
- **Location:** Los Angeles, CA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** C++ (Programming Language), Static Program Analysis, Code Review, Continuous Integration, Device Drivers, Linux on Embedded Systems, Embedded Software, Fault Tolerance, FreeRTOS, Hardware Interface Design, Python (Programming Language), Software Architecture, Real-Time Operating Systems, Software Engineering, System Software, VxWorks, DO-178B
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25197_d6d32ec734790eb8c4e6e0263a43385d

## About the Role

* 10+ years of professional software engineering experience, with significant time on embedded, real-time, or safety-critical defense/aerospace systems.
 * Expert-level C/C++ on resource-constrained flight platforms; strong working proficiency in Python for tooling and analysis.
 * Demonstrated ownership of flight software or autonomy software that flew on fielded military or aerospace hardware.
 * Deep experience with RTOS (e.g., FreeRTOS, VxWorks) and/or embedded Linux, device drivers, and low-level hardware interfaces.
 * Experience building SIL/HIL test infrastructure and using it to qualify software for flight.
 * Strong grasp of software architecture for fault tolerance, determinism, and state management in autonomous weapon or air systems.
 * [BONUS] Experience with UAS, munitions, or missile flight software and associated practices (DO-178C-informed development, MIL-STD-882 system safety).
 * [BONUS] Experience with autonomy stacks: guidance integration, terminal seeker processing, or target tracking software.
 * U.S. Person as defined by ITAR (22 CFR §120.62)

## Description

* Own major weapon-system software subsystems end-to-end: architecture, implementation, test, integration on flight hardware, and support through live-fire test.
 * Develop safety-critical embedded software in C/C++ on RTOS and embedded Linux platforms, interfacing directly with IMUs, seekers, actuators, and RF payloads.
 * Build and maintain simulation, software-in-the-loop, and hardware-in-the-loop environments that keep flight software verifiable at high iteration speed.
 * Establish software engineering practices - CI/CD, code review, static analysis, testing standards - appropriate for weapon-system software and MIL-STD-882 system safety.
 * Mentor engineers across the software team and set the technical bar for design quality and code health.
 * Support field and flight test events at military ranges, including rapid diagnosis and resolution of issues discovered in test.