Staff Motion Planning Software Engineer

Posted 3 Days Ago
Be an Early Applicant
South San Francisco, CA, USA
In-Office
230K-270K Annually
Senior level
Aerospace • Hardware • Logistics • Robotics • Software • Transportation
Zipline democratizes access to critical medical supplies through instant drone delivery.
The Role
Develop safety-critical motion planning software for autonomous delivery drones. Build real-time trajectory generation and decision-making systems using search, sampling, optimization, and model predictive control. Address uncertain environments, vehicle constraints, obstacle avoidance, and human interaction. Extend autonomy systems across aircraft and payloads, validate through simulation and hardware-in-the-loop testing, and use fleet data to improve safety, reliability, and failure handling.
Summary Generated by Built In
About Zipline

Zipline is the world’s largest and most experienced drone delivery service. We are on a mission to serve all humans equally by ensuring access to food, medicine and essential goods anytime, anywhere. We design, build, and operate the world’s largest autonomous logistics system, delivering critical supplies quickly and reliably. Today, Zipline operates on four continents, makes a delivery somewhere in the world every 30 seconds, and has completed millions of deliveries to date, including blood, vaccines, medical supplies, food, and retail products. 

Our customers include the world’s largest and most prominent healthcare systems, governments, retailers, restaurants and global businesses who rely on us to save lives, reduce emissions, increase economic opportunity, and provide delivery from point A to point B as fast as possible. The drone is only 15% of what we’ve built to enable seamless, reliable, global operations.

Our system strengthens supply chains, reduces congestion, and gives people time back. With more than 140 million commercial autonomous miles safely flown, Zipline is redefining access to healthcare, consumer products, and food across the globe.

We operate at a global scale and are looking for practical problem solvers who thrive on real-world challenges and rapid growth. Our team is motivated by building systems that have a direct, meaningful impact on people’s lives and by scaling the future of logistics. We are seeking people who sculpt from first principles, enjoy facing adversity, and can do the impossible at record breaking speeds.

About You and The Role

Zipline operates the world’s largest autonomous logistics system (ground or air) — and in the coming year, we will be hyper-scaling from thousands to tens of thousands of carefully coordinated drone deliveries in several dense, dynamic U.S. metros. Our Autonomy Motion Planning team is looking for a Staff Software Engineer who is passionate about developing autonomous systems for the real world. This role will explore cutting-edge approaches to decision making and trajectory planning that will enable more accurate and timely deliveries, putting you in the position to make critical product decisions that will shape our future architectures.

What You'll Do
  • Build real-time trajectory generation and decision-making for autonomous flight (search-based, sampling, MPC, convex/non-convex optimization).
  • Tackle joint optimization across safety, energy, time, and reliability—balancing mission goals with vehicle constraints.
  • Plan in uncertain environments with complex dynamics: robustness to wind/turbulence, degraded sensors, and partial observability.
  • Design safety-critical software for avoiding obstacles and interfacing with humans while delivering and picking up packages
  • Extend the autonomy stack for new aircraft and payloads; define clean interfaces with perception and controls.
  • Prove it before flight: large-scale sim, SIL/HIL, log replay, and fault-injection.
  • Mine real fleet data to validate safety metrics, improve models, and burn down long-tail failure modes.
What You'll Bring
  • Master's degree in Computer Science or related field and 7+ years of experience building software for safety-critical systems (aerospace/AV/robotics).
  • Strong in Rust/C++/C for real-time, fault-tolerant code on embedded/Linux.
  • Depth in planning & search (e.g. A*/ anytime / RRT*/sampling), trajectory optimization/MPC—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.
What Else You Need To Know

The starting cash range for this role is $230,000 - $270,000. Please note that this is a target, starting cash range for a candidate who meets the minimum qualifications for this role. 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, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws or our own sensibilities.

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!

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in Zipline ’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

Skills Required

  • Master's degree in Computer Science or a related field
  • 7+ years of experience building software for safety-critical systems in aerospace, autonomous vehicles, or robotics
  • Strong proficiency in Rust, C++, or C for real-time, fault-tolerant software on embedded Linux
  • Experience with motion planning and search algorithms such as A*, anytime search, RRT*, and sampling methods
  • Experience with trajectory optimization and model predictive control
  • Experience shipping planning systems on real robots or vehicles
  • Hands-on experience with large-scale simulation, SIL/HIL, log replay, and metrics-driven validation
  • Experience delivering production-grade autonomous systems in ambiguous and noisy conditions
  • Ability to collaborate with perception, controls, and flight operations teams

Zipline Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Zipline and has not been reviewed or approved by Zipline.

  • Healthcare Strength — Healthcare coverage is consistently described as comprehensive and high quality, with multiple plan choices, low out‑of‑pocket costs, and additions like HRA, One Medical, and fertility support.
  • Parental & Family Support — Parental and family leave is highlighted as generous and meaningfully used, reinforcing support for major life events.
  • Leave & Time Off Breadth — Paid time off, sick days, and holidays are portrayed as solid and broadly available, contributing to overall benefits depth.

Zipline Insights

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The Company
HQ: South San Francisco, CA
375 Employees
Year Founded: 2014

What We Do

Zipline is the world's largest autonomous delivery network and is powered entirely by fixed-wing drones. Our fleet circles the equivalent distance of the equator every 2.5 days, and we have shipped hundreds of thousands of critical medical products across Rwanda, Ghana, and now beginning in the United States.

Why Work With Us

Zipline is the perfect intersection of super cutting-edge tech, deep social mission, and extremely compelling business case. Our small, scrappy, customer-obsessed, humble, and mission-driven team has set the bar for what is possible in the drone logistics industry globally, and has designed some incredibly elegant technology in the process.

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