GNSS (GPS) creates upwards of $500B in economic value in North America every year, supporting everything from consumer applications, to transportation, to time sync for critical infrastructure. As these industries progress towards autonomy, the performance and security demands of their Position, Navigation, and Timing (PNT) systems are increasing beyond what GNSS can support, leaving a need for a cost-effective global solution. Using lessons we've learned at places like SpaceX and Blue Origin, Xona is building a modern commercial satellite system at the rapid pace of the new space industry leveraging the recent wave of technology and regulatory advancements. Building on our patented small satellite architecture, we are developing a robust and accurate service that is an independent alternative to GNSS rather than a correction, solving the longstanding challenge of obtaining a reliable high accuracy solution. Our satellite system will provide the first ever high-accuracy global navigation and timing services with the security and resilience that modern applications need to operate safely at scale. As a Payload Software Engineer, your daily activities are integral to ensuring the reliability of our software systems. You will engage in full-system testing, with a focus on intricate interface checkouts, both with the hardware and with the satellite bus. Collaborating with the I&T, hardware engineering, and software engineering teams, you will implement robust interface components to ensure the reliability of our service to our users. This role demands active architectural problem-solving skills, requiring complex operations systems be made clear via technical documentation. This opportunity allows you innovate in the space industry, optimizing edge-performance and system-wide stability.