Senior Principal Software Engineer - TS/SCI

we are seeking a highly skilled and experienced Senior Principal Software Engineer to serve as the Chief Software Engineer for a major constellation program.

In this pivotal role, you will lead the design, development, and delivery of scalable, reliable, and mission-critical software systems for space-based applications.

With expertise in flight software, embedded systems, and ground software systems, you will collaborate with systems teams, software engineers, and stakeholders to ensure mission success.

If you have a passion for aerospace and defense, hold an active TS/SCI clearance, and thrive in fast-paced environments, this is your opportunity to make a tangible impact on national security and space exploration.

WHAT YOU'LL GET TO DO: - Lead Software Architecture Design: Define and evolve the end-to-end software architecture for flight and ground systems, ensuring scalability, reliability, security, and mission success. - Develop Flight Software: Design application software for spacecraft operating within Real-Time Operating Systems (RTOS) such as VxWorks, or embedded Linux, including hardware drivers for spacecraft sensors and actuators such as IMUs, Star Trackers, and Reaction Wheels. - Build Ground Software Systems: Architect and deploy web-based ground software platforms for spacecraft operations, integrating flight and ground systems to support diverse mission profiles. - Test and Validate Systems: Develop unit tests within a Continuous Integration (CI) framework and collaborate with hardware-in-the-loop test engineers to verify combined software and hardware functionality. - Collaborate and Lead: Provide technical direction and mentorship to engineering teams, act as a trusted advisor to leadership, and partner with stakeholders to align software systems with mission requirements. - Support On-Orbit Operations: Ensure software performance in harsh environments and contribute to mission-critical operations.

QUALIFICATIONS YOU'LL BRING AS SENIOR PRINCIPAL SOFTWARE ENGINEER: - Bachelor's degree in engineering, computer science, or a related technical discipline. - 15+ years of professional software development experience, including embedded systems and ground software. - Proven expertise in architecting scalable and reliable software systems for aerospace or defense applications. - Proficiency in C and C++ for embedded software development and python for testing. - Experience with both DIO and AIO (Digital and Analog Inputs and Outputs). - Experience with integrating hardware, including implementing ICDs, and debugging. - Experience with deriving the Flight Software architecture from the electrical design including reading a master ICD list and/or schematics. - Experience with RF ground to space communication. - U.S. citizenship is required, due to program

requirements - Active TS/SCI clearance is required THESE QUALIFICATIONS WOULD BE NICE TO HAVE: - Advanced degree in aerospace engineering, computer science, or a related field. - Strong systems-level thinking with the ability to balance technical trade-offs across performance, security, and maintainability. - Experience developing software and drivers with CAN/CAN-FD, SpaceWire, and/or UDP/TCP protocols. - Experience leading teams and working with program management to plan out work and staffing. - Expertise in microservice architectures, distributed systems, and modern web frameworks such as FastAPI. - Full-stack development experience, including: - Backend: Golang, and/or Rust. - Frontend: Typescript and Angular. - Database: InfluxDB, PostgreSQL, or equivalent. - Familiarity with CCSDS standards, including Space Packet Protocol, COP-1, and CFD. - Experience designing software for autonomous vehicles operating in harsh environments, such as satellites or autonomous vehicles. - Expertise in Git-based workflows, CI/CD pipelines, and Kubernetes orchestration. - Understanding of modern authentication/authorization frameworks (e.g., OAuth).

Benefit programs are subject to change at the company's discretion. Base Pay Range (CA Only) $198,000 - $297,000 USD WHAT TO EXPECT We're on a mission to unlock the potential of space to improve life on Earth, but that's not an easy task.