Mechanical Engineer

About this role

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 builds autonomous delivery aircraft and ground systems that operate daily in various field conditions. You will own hardware that directly affects flight safety, fleet reliability, manufacturability, and the speed at which we scale service to new regions. The Ground Systems team is responsible for all of the infrastructure that enables our Zips to take off, fly, land, charge and prepare for their next mission. Our goal is to develop elegant integration solutions that are modular, cost effective, and adaptable to both new and existing building structures and sites worldwide for a variety of customers making drone deliveries.

What You'll Do

We are looking for an experienced mechanical engineer to own the design of entire systems and subassemblies for next generation products that are unlike anything that exists today. This will include design of structural components, mechanisms, and electronics integration. As a member of our core design team, you will make important decisions about the product architecture and create designs that will enable practical scale on a short timeline that will meet high product reliability targets. You will quickly iterate and downselect based on data from your analysis and test results from your prototypes. Collaboration cross functionally will be key with electrical, software, civil, NPI and supply chain teams to bring your designs to production and into the field.

In this role you will:

• Own the end-to-end delivery of mechanical and electromechanical subsystems, from requirements definition through concept development, design, build, verification, release, production ramp, and sustaining engineering

• Produce and defend system-level trade studies, tolerance stacks, load paths, failure modes, and hand-calcs that bound designs for safety-critical loads and manufacturability.

• Create CAD assemblies, detailed drawings, GD&T, and manufacturing documentation for 20–100 part assemblies; own design reviews, DFM, and first-article criteria.

• Develop and execute verification plans (environmental, fatigue, vibration, thermal, EMI/EMC where applicable), build test rigs/fixtures, run test campaigns, analyze results, and close findings with corrective actions and measurable reliability improvements

• Lead supplier selection, qualification, and handoff: drive DFM feedback, define inspection criteria, and reduce supplier NPI cycle time and scrap rates. Own escalation and remediation when supplier output risks field operations

• Partner daily with Systems, Software, Production, Integration & Test, Reliability, and Field Ops to align requirements, manage trade-offs, and eliminate deployment blockers

• Translate prototypes into designs that meet target cost, cycle time, and inspection rates for medium-volume production; own metrics for manufacturability and in-field reliability and drive them to target.

• Serve as a technical authority in design reviews and postmortems; lead incident root-cause investigations when field events occur

• Mentor peers and junior engineers, and raise the quality of mechanical design practices across the team.

What You'll Bring

• 5–10+ years of mechanical/electromechanical design engineering experience delivering complex subsystems or products through NPI into production

• Proven track record owning complex subassemblies or full systems over at least 2 product programs (concept, prototype, validation, production)

• Strong mechanical engineering fundamentals including load estimation, structural hand calcs, FEA, material selection, clean CAD designs and design-for-assembly/field-service practices

• Demonstrated experience designing mechanisms and actuator systems, including selection and integration of motors, gearboxes, bearings, linear actuators, springs, linkages, sensors, and other motion-control components.

• Experience evaluating mechanism kinematics, actuator loads, friction, efficiency, backlash, compliance, duty cycle, wear, fatigue, and life.

• Practical knowledge of manufacturing methods such as welding, sheetmetal forming, extrusion, CNC machining, injection molding, etc

• Experience partnering with contract manufacturers to ramp up production of high volume lines ● Strong CAD and documentation skills: able to own 3D assemblies and 2D detail drawings for 20–100 part systems; experience with NX, SolidWorks, or equivalent

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