--- title: 'Senior Software Engineer - Motor Controls at Zipline' canonical: 'https://feeny.ai/job/senior-software-engineer-motor-controls-zipline-south-san-francisco-california-mbw1q04rdpaa' type: 'job' last_seen: '2026-09-06' --- # Senior Software Engineer - Motor Controls at Zipline - **Company:** Zipline - **Location:** South San Francisco California, United States - **Posted:** 2025-07-08 - **Last confirmed live:** 2026-09-06 - **Apply:** https://www.zipline.com/open-roles/6641068003?gh_jid=6641068003 ## Job description ## 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 As a Senior Motor Control Engineer at Zipline, you’ll be responsible for shipping high-performance motor controller firmware for Zipline’s family of proprietary motor controllers. Expect to work closely with electrical engineers, structures and mechanism designers, flight software developers, and test-site operations teams. Our close-knit engineering culture presents a unique opportunity to learn from a strong multi-disciplinary team, and lets you swiftly ship features that are clearly linked to the delivery experience. We use C++ in our firmware development, with Rust and Python for tooling that will be deployed to our production systems in the field. The team uses hardware- and software-in-the-loop test infrastructure to validate new features and regression test existing functionality. You’ll often be querying large data-sets from our test operations to make high-quality data-driven engineering decisions and build prototypes of new algorithms. You’ll build analyses in Matlab, Julia, or Python to prove the performance of your controls designs, and execute Monte-Carlo simulations to validate complex dynamics. ## What You'll Do - Design estimators and controllers for propulsion motors and actuators, in close collaboration with the vehicle controls team. - Implement these controllers in C++, targeting a bare-metal ARM microcontroller. - Write peripheral drivers for new revisions of Zipline’s motor controller hardware. - Get your hands dirty validating your firmware on the bench and in flight tests. - Understand and improve the reliability of the flight software system as a whole, working with hardware and systems engineers to develop comprehensive fault management strategies and hardware-in-the-loop tests. - Build vehicle simulations in Rust to validate and regression test Zipline’s firmware. - Collaborate with electrical engineers to bring-up and validate new inverter designs. - Build and maintain automated systems to monitor the performance of our fleet and direct maintenance activity. ## What You'll Bring - Fluency in C/C++, and excitement about writing code in Rust and Python. - Eagerness to learn in a fast-paced safety-critical environment. - Some experience with mechatronic control systems: hobby projects or professional experience are applicable. - Curiosity and a willingness to work in a variety of embedded environments, from running on bare metal, to using a RTOS and integrating with embedded Linux. - Experience supporting robotic systems in the real-world, in particular addressing the long-tail of edge-cases and rare events to guarantee safety, reliability, and performance. - A systems-engineering mindset, and an eye for finding efficient solutions to problems that may lie outside your core competencies. - Strong executive communication skills, to efficiently communicate about your work with stakeholders outside your technical domain. - You must be able to work on-site in South San Francisco, CA. - A background in electronics design would be appreciated, but is not required. What Else You Need to Know The starting cash range for this role is $155,000 - $225,000. 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! Please Note We have received reports stating that certain individuals are reaching out to people under false pretenses, claiming to be Zipline employees, affiliates, agents, or representatives. They may seek to gain access to your personal information or to acquire money from you by offering fictitious employment opportunities or by claiming that they are contacting you on Zipline’s behalf. Genuine Zipline employees or representatives will never ask you for money or payment in exchange for employment opportunities or other related services. Any such offer of employment or any other service in exchange for fees that claims to be from us is deceitful and part of a fraud. If you believe you have been targeted by a fraudulent party, we ask that you immediately get in touch with us via email at security@flyzipline.com upon receiving a suspicious offer or claim. 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. ## About Zipline ## Company Overview - **One-liner**: Zipline is an American robotics company that operates the world’s largest autonomous drone delivery service, transporting medical supplies, food, and retail goods across multiple continents. - **Entity Type**: Private (early-stage startup) - **Headquarters**: South San Francisco, California, United States - **Founded**: March 2014 - **Founders**: Keller Rinaudo Cliffton, Keenan Wyrobek, Ryan Oksenhorn, William Hetzler ## Core Business - **Primary industry**: Logistics / Drone delivery - **Target customers**: B2B (healthcare systems, governments, retailers like Walmart and Chipotle) and B2C (home delivery via the Zipline app) - **Mission or purpose statement**: “Build the first logistics system that serves all people equally” – initially focused on saving lives by delivering blood and medicine to remote communities, now expanded to instant urban delivery. ## Products & Services - **Platform 1 (P1)**: Long-range, rural delivery drone. Carries up to 4 lbs, roundtrip range 120+ miles, cruise speed 60 mph. Uses parachute delivery. Designed for enterprise, government, and healthcare supply chains. - **Platform 2 (P2)**: Urban/suburban home delivery drone. Carries up to 8 lbs, service radius 10 miles (or 24 miles one way), cruise speed 70 mph. Delivers via a tether from up to 300 ft, allowing contactless drop-off. Launched in 2025 and used for food, retail, and health products. - **Zipping Points**: Modular ground stations that allow businesses to load orders onto drones without specialized equipment. - **FlightIQ**: Advanced onboard autonomy and perception suite for safe navigation and delivery. ## Market Standing - **Valuation/Market Cap**: Not publicly available - **Key Metric**: 2 million commercial deliveries completed (as of January 2026) and 130 million autonomous miles flown.[wikipedia](https://en.wikipedia.org/wiki/Zipline_(drone_delivery_company))[zipline-fact-sheet](https://www.zipline.com/about/zipline-fact-sheet) - **Notable Investors/Partners**: Not disclosed in available sources. Key partners include Walmart, Chipotle Mexican Grill, Crumbl, Blaze Pizza, Wendy’s, and many other restaurant brands. In healthcare, works with more than 5,000 hospitals and health centers. - **Growth Signals**: Expanded into urban home delivery in 2025 (P2) with service in Pea Ridge, Arkansas and 20+ communities in Dallas-Fort Worth. Obtained FAA authorization for beyond visual line of sight operations. Reports 56% decrease in maternal mortality and 66% decrease in missed malaria treatments in served regions.[zipline-fact-sheet](https://www.zipline.com/about/zipline-fact-sheet) ## Competitive Advantages - **Autonomous drone fleet**: One of the world’s largest commercial deployments of autonomous robots, with custom software running on Nvidia chips. - **FAA approval**: All operations and aircraft are FAA-approved, including pioneering use of Unmanned Aircraft System Traffic Management (UTM). - **Quieter than road vehicles**: Drones hover high and descend on a tether, generating noise lower than common neighborhood sounds. - **Extensive testing**: One of the largest aviation testing campaigns, with operations in rain, wind, and storms. - **Integrated logistics platform**: Beyond drones, Zipline provides warehousing, inventory management, cold chain storage, and fulfillment software. ## Strategic Focus - Scaling the Platform 2 urban delivery network across the U.S., particularly through partnerships with major retailers and restaurants. - Deepening healthcare impact by expanding into new countries and product categories (prescriptions, groceries, convenience items). - Continuing to reduce delivery times and environmental footprint (0 emissions per delivery, compared to automotive delivery). ## Why Work Here - **Culture values**: Ownership & Accountability, Direct Feedback & Communication, Continuous Improvement, Customer Obsession, Servant Leadership (as stated on careers page). Emphasis on “Make it matter” and mission-driven work.[careers](https://www.zipline.com/careers) - **Work environment**: Headquartered in South San Francisco with hardware and software teams. The company assembles its drones in America. Likely on-site given the hardware focus; remote/hybrid policy not explicitly stated. - **Impact**: Opportunity to work on life-saving technology (60,000+ lives saved) and shape the future of instant logistics. - **Engineering culture**: Build and iterate on autonomous systems, airspace deconfliction, and large-scale robotics deployments. ## Sources 1. [Zipline Careers](https://www.zipline.com/careers) 2. [Zipline Homepage](https://www.zipline.com/) 3. [About Zipline](https://www.zipline.com/about) 4. [Zipline Fact Sheet](https://www.zipline.com/about/zipline-fact-sheet) 5. [Wikipedia - Zipline](https://en.wikipedia.org/wiki/Zipline_(drone_delivery_company)) 6. [Greenhouse Careers Page](https://job-boards.greenhouse.io/flyzipline) ## Other roles at Zipline - [Senior/Staff Systems Modeling Engineer, Electric Propulsion](https://feeny.ai/job/senior-staff-systems-modeling-engineer-electric-propulsion-zipline-south-san-xvtyrwb7gcss) — South San Francisco California, United States - [Aircraft Software Integration Intern (Summer 2027)](https://feeny.ai/job/aircraft-software-integration-intern-summer-2027-zipline-south-san-francisco-qzhqteyn3z8h) — South San Francisco California, United States - [Aircraft Software Integration Intern (Spring 2027)](https://feeny.ai/job/aircraft-software-integration-intern-spring-2027-zipline-south-san-francisco-869y0r4pmkrj) — South San Francisco California, United States - [People Partner](https://feeny.ai/job/people-partner-zipline-kigali-xhgqah3xea2d) — Kigali, Rwanda - [Concept and Architecture Engineering Contractor](https://feeny.ai/job/concept-and-architecture-engineering-contractor-zipline-south-san-francisco-ttns1vrthcc8) — South San Francisco California, United States - [Mechanical Design Engineer - Towers](https://feeny.ai/job/mechanical-design-engineer-towers-zipline-south-san-francisco-california-tcdm0q3t7ex4) — South San Francisco California, United States - [Director of Industry Standards](https://feeny.ai/job/director-of-industry-standards-zipline-south-san-francisco-california-xfmf6syhmfnh) — South San Francisco California, United States - [Flight Test Site Lead](https://feeny.ai/job/flight-test-site-lead-zipline-amarillo-texas-yjcn58g0gb1v) — Amarillo Texas, United States - [Flight Test Operator](https://feeny.ai/job/flight-test-operator-zipline-amarillo-texas-j156mq0pv54x) — Amarillo Texas, United States - [Launch & Scale Intern (Summer 2027)](https://feeny.ai/job/launch-scale-intern-summer-2027-zipline-south-san-francisco-california-kmcdb5709dg3) — South San Francisco California, United States