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Hermeus is a venture-backed defense aviation company building the fastest aircraft in the world through relentless hardware iteration and rapid prototyping. The company partners with the Department of War to deliver high-speed capabilities for national defense.
The Mission Systems Engineering team develops the Mission Management System—a software platform that connects mission subsystems, autonomy services, operator interfaces, communications links, and telemetry across Hermeus aircraft and ground systems.
As a Senior Mission Software Engineer, you will architect, build, integrate, and validate critical portions of this platform. This is a hands-on technical leadership role where you will define foundational architecture and directly influence how Hermeus aircraft are commanded, monitored, tested, and expanded with new mission capabilities.
Key Responsibilities:
- Own major Mission Management System capabilities from architecture through integration, testing, and operational use
- Design and develop high-performance C++ software for command and control, telemetry, mission workflows, and subsystem coordination
- Define scalable architectures, interfaces, APIs, protocols, and message schemas
- Integrate autonomy services, sensors, payloads, radios, tactical datalinks, and third-party systems
- Make technical decisions involving performance, reliability, latency, fault tolerance, and extensibility
- Diagnose complex issues across distributed software, networks, embedded hardware, avionics, and communications systems
- Partner with systems, avionics, autonomy, networking, flight-test, and operations teams
- Build and improve simulation, software-in-the-loop, hardware-in-the-loop, and system-integration environments
- Lead design reviews, code reviews, technical trade studies, and integration activities
- Identify technical risks and drive solutions in environments where requirements are still evolving
- Mentor engineers and establish strong software architecture and development practices
- Support ground and flight-test campaigns, including real-time troubleshooting
Requirements:
- Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Software Engineering, or related field
- 8+ years of professional software engineering experience
- Strong proficiency in C++ and experience with real-time, distributed, or embedded systems
- Experience with avionics, mission-critical systems, or defense/aerospace software
- Familiarity with standards such as DO-178C, ARINC, FACE, OMS/UCI, STANAG, or MIL-STD
- Experience establishing technical direction or influencing execution across multiple teams
- Experience working in a startup or rapid-prototyping environment
- U.S. citizenship required (due to access to Controlled Cryptographic Items and export control compliance)
