<p>About You:</p> <p>Merlin Labs is seeking a Senior Software Engineer with strong experience in DO-178C flight software development and avionics integration. In this role, you will design and implement safety-critical autonomous flight software, integrate it with avionics hardware platforms, and contribute to certification-ready development processes.</p> <p>Responsibilities:</p> <ul> <li>Develop, integrate, and verify flight-critical software using C/C++ following DO-178C processes. </li><li>Build application-level flight software and ensure robust integration with underlying avionics hardware interfaces </li><li>Create, maintain and review software requirements, code and certification artifacts adhering to certification plans and standards </li><li>Troubleshoot integration issues on test benches and aircraft </li><li>Develop automated workflows for software integration and build processes. </li><li>Collaborate with engineers from cross functional groups such as systems, safety, hardware, flight controls and test to ensure product and program level needs are met. </li><li>Contribute to planning and execution of SOI audits and certification reviews. </li><li>Create and maintain comprehensive documentation for software requirements, architecture, build processes and design decisions </li><li>Support hardware-in-the-loop (HIL), processor-in-the-loop (PIL), and flight testing activities. </li></ul> <p>Qualifications:</p> <ul> <li>Bachelor's or Master's in Computer Science, Electrical Engineering, Aerospace, or related field. </li><li>3-5 years of embedded or flight software development experience within a DO-178C environment. </li><li>Strong proficiency in C/C++ for embedded, real-time, safety-critical systems. </li><li>Understanding of avionics protocols and architectures (ARINC 429, ARINC 653, CAN, MIL-STD-1553, Ethernet). </li><li>Experience designing and implementing software for real-time operating systems (RTOS), with strong knowledge of low level topics such as device driver development, interrupt handling, memory management, and performance estimation. </li><li>Strong experience with requirements management, including authoring high-quality software requirements, maintaining traceability, and using tools such as DOORS, Jama, or Polarion. </li><li>Experience with hardware/software integration, debugging on target hardware, and use of analysis tools (logic analyzers, bus analyzers). </li><li>Experience with Python scripting, tool automation and test automation </li><li>Experience with CI/CD environments and automated code quality checks. </li></ul> <p>Nice To Have</p> <ul> <li>Background integrating software across diverse avionics platforms or multicore systems. </li><li>Familiarity with flight controls, autonomy, GNC, or aircraft certification efforts. </li><li>Exposure to MathWorks tools and Model-Based Development workflows (DO-331). </li><li>Prior involvement in SOI audits or FAA/EASA certification programs. </li></ul>