Flight Software Engineer - Command & Control

Hermeus is a venture-backed defense aviation company building high-speed aircraft through rapid hardware iteration. This role is a Flight Software Engineer on the Command & Control team in Atlanta, responsible for designing, developing, and integrating embedded flight software and networking infrastructure that enables communication between aircraft and ground control systems.

What You'll Do

• Develop and maintain embedded C/C++ software supporting aircraft communications, telemetry, Command & Control, and vehicle data links
• Design and implement software enabling reliable communication between aircraft and ground control systems, with ownership across both vehicle and ground-based network infrastructure
• Develop software interfaces for radios, transmitters, receivers, and communications hardware; integrate and troubleshoot RF communications systems in collaboration with RF and avionics engineers
• Develop and maintain network management functionality including Ethernet, TCP/UDP, multicast, and related networking protocols; create software requirements, system architectures, interface definitions, and technical design documentation
• Test and debug software on target hardware in Software-in-the-Loop, laboratory, and integrated hardware environments; support flight test and range operations; travel up to 25% to support integration and test activities

What You Need

• Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering, or related technical field
• Professional experience developing embedded software in C and/or C++
• Strong understanding of software fundamentals including memory management, pointers, references, and object-oriented programming
• Experience developing, debugging, and testing software that interfaces with hardware
• Familiarity with networked or distributed systems and common communications concepts; experience working in Linux-based software development environments

Nice to Have

• Experience with real-time operating systems (RTOS) and developing or testing software on target hardware
• Experience with aircraft, spacecraft, robotics, autonomous vehicles, defense systems, or embedded platforms
• Experience with vehicle communications, telemetry, Command & Control, or data-link systems; aerospace telemetry standards such as CCSDS or IRIG; serial communications, CAN, Ethernet, TCP, UDP, or multicast networking
• Experience interfacing software with radios, particularly Software Defined Radios (SDRs); familiarity with RF communications concepts; experience with satellite or cellular communications
• Understanding of network management concepts including VLANs, firewalls, routing; familiarity with safety-critical software development processes such as DO-178C; experience with GitLab or similar source control and CI/CD tooling