Staff Software Engineer, Vehicle Applications

<div class="content-intro"><p><span style="color: #444444;">At Sonatus, we’re driving the transformation to AI-enabled software-defined vehicles. Traditional automotive software methods can’t keep pace with consumer expectations shaped by the mobile industry—where features evolve rapidly, update seamlessly, and improve continuously. That’s why leading OEMs trust Sonatus to accelerate this shift. Our technology is already in production across more than 8 million vehicles on the road today and rapidly expanding.</span></p> <p><span style="color: #444444;">Headquartered in Sunnyvale, CA, with 250+ employees worldwide, Sonatus combines the agility of a fast-growing company with the scale and impact of an established partner. Backed by strong funding and proven by global deployment, we’re solving some of the most interesting and complex challenges in the industry. Join us and help redefine what’s possible as we shape the future of mobility.</span></p></div><h2><strong>Role Summary:</strong></h2> <p>Sonatus is a leader in providing technologies and software to global OEMs to build software-defined vehicles. We are looking for a highly motivated Staff Software Engineer to join our fast-growing team. As part of a cross-functional team responsible for the full software development life cycle (SDLC), you will have the opportunity to work on cutting-edge in-vehicle software from conception through commercial deployment. This role reports to the Director of Engineering, Vehicle Development.</p> <h2><strong>Responsibilities:</strong></h2> <ul> <li>Design and implement highly complex, resource-efficient, reliable, and safety-critical in-vehicle software from requirements through production and commercial deployment.</li> <li>Collaborate closely with peer engineers and cross-functional teams (QA, DevOps, system architects, product managers, project managers, hardware) to translate requirements into robust software components.</li> <li>Help coordinate day-to-day execution across the team, identifying blockers early and keeping work moving in alignment with project schedules.</li> <li>Participate in architecture discussions and contribute to design decisions with well-reasoned, clearly communicated input.</li> <li>Provide technical guidance and mentorship to engineers, fostering a collaborative, high-quality engineering culture.</li> <li>Write clean, maintainable, well-documented code; maintain unit and integration tests.</li> <li>Analyze and enhance the efficiency, stability, and scalability of system resource usage.</li> <li>Participate in QA test plan reviews and collaborate with QA in debugging sessions.</li> <li>Contribute to and maintain technical documentation, including design docs and technical specif