Autonomy Software, Behavioral Planning

About Zipline Do you want to change the world? Zipline is on a mission to transform the way goods move. Our aim is to solve the world’s most urgent and complex access challenges by building, manufacturing and operating the first instant delivery and logistics system that serves all humans equally, wherever they are. From powering Rwanda’s national blood delivery network and Ghana’s COVID-19 vaccine distribution, to providing on-demand home delivery for Walmart, to enabling healthcare providers to bring care directly to U.S. homes, we are transforming the way things move for businesses, governments and consumers.   The technology is complex but the idea is simple: a teleportation service that delivers what you need, when you need it. Through our technology that includes robotics and autonomy, we are decarbonizing delivery, decreasing road congestion, and reducing fossil fuel consumption and air pollution, while providing equitable access to billions of people and building a more resilient global supply chain.   Join Zipline and help us to make good on our promise to build an equitable and more resilient global supply chain for billions of people. About the Role Zipline operates the world’s largest autonomous flight network—and we’re scaling from thousands to tens of thousands of carefully coordinated robots in dense, dynamic airspace. As a Motion Planning Software Engineer, you’ll own the planning and decision-making software that turns perception and control into safe, efficient, and reliable flight at global scale. This is a rare IC seat where your algorithms leave the lab and run a fleet .  What You'll Do Build real-time trajectory generation and decision-making for autonomous flight (search-based, sampling, MPC , convex/non-convex optimization). Design collision avoidance and large-scale multi-agent planning (fleet deconfliction, airspace rules, traffic management) that scales to 10,000+ flights/day . Tackle joint optimization across safety, energy, time, and reliability—balancing mission goals with vehicle/airspace constraints. Plan in uncertain environments with complex dynamics : chance-constraints, robustness to wind/turbulence, degraded sensors, and partial observability. Extend the autonomy stack for new aircraft and payloads; define clean interfaces with perception and controls. Prove it before flight: scenario libraries, SIL/HIL , large-scale sim, log replay, and fault-injection. Mine real fleet data to validate safety metrics (separation, risk, intervention rate), improve models, and burn down long-tail failure modes. Continuously reduce cost/latency (vectorization, warm starts, smart heuristics) while raising reliability. What You'll Bring At least 8+ years building production software for safety-critical systems (aerospace/AV/robotics/medical). Strong in Rust/C++/C for real-time, fault-tolerant code on embedded/Linux. Depth in planning & search (A*/ anytime / RRT*/sampling), trajectory optimization/MPC , or multi-agent deconfliction—shipped on real robots/vehicles. Hands-on with simulation at scale, SIL/HIL , log replay, and metrics-driven validation. Evidence of shipping production-grade autonomy through ambiguous, noisy conditions—owning the last mile to reliability. Systems thinker who collaborates tightly with perception, controls, and flight ops; crisp docs and design reviews. Why Join Now? Impact at scale: Your planner won’t benchmark in isolation—it will fly thousands of missions/day delivering essential goods. Technical frontier: Real-time multi-agent autonomy, joint optimization , and robustness under uncertainty at a scale few have seen. Ownership: High-leverage IC role—your decisions shape Zipline’s flight stack and the behavior of a global fleet. Category leadership: Help define the standard for safe, reliable autonomous flight in the real world.   What Else You Need to Know    The starting cash range for this role is $200,000 - $265,000; please note that this is a target, starting cash range for a candidate who meets the minimum qualifications for this role. We are always open to negotiation. The final cash pay for this role will depend on a variety of factors, including a specific candidate's experience, qualifications, skills, working location, and projected impact. The total compensation package for this role may also include: equity compensation; discretionary annual or performance bonuses; sales incentives; benefits such as medical, dental and vision insurance; paid time off; and more.    Zipline is an equal opportunity employer and prohibits discrimination and harassment of any type without regard to race, color, ancestry, national origin, religion or religious creed, mental or physical disability, medical condition, genetic information, sex (including pregnancy, childbirth, and related medical conditions), sexual orientation, gender identity, gender expression, age, marital status, military or veteran status, citizenship, or other characteristics protected by state, federal or local law or our other policies.   We value diversity at Zipline and welcome applications from those who are traditionally underrepresented in tech. If you like the sound of this position but are not sure if you are the perfect fit, please apply!