Mechanical Engineer, Ground Systems

Zipline is seeking an experienced mechanical engineer to own the design of entire systems and subassemblies for next-generation ground systems that enable autonomous drone delivery. In this role, you will lead the end-to-end delivery of mechanical and electromechanical subsystems, from requirements through production, and collaborate cross-functionally with electrical, software, civil, NPI, and supply chain teams. You will produce trade studies, create CAD assemblies, develop verification plans, and drive supplier selection and qualification. You will also serve as a technical authority in design reviews and mentor junior engineers.

Responsibilities

• 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.

Requirements

• 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
• Disciplined processes: Your parts are released, BOMs are maintained, SOPs created for builds, and timelines are up-to-date
• Excellent written, verbal, and visual communication. You know how to tailor to your audience with the right level of technical depth to be as effective as possible, including using basic tools in place of full CAD when it makes sense
• Bachelor’s degree in Mechanical Engineering or a related discipline
• Ability to periodically (<10%) travel to visit customers and suppliers

Nice to have

• NX is your primary CAD tool
• Experience designing autonomous machinery, robotics, industrial automation, aerospace ground equipment, material-handling systems, or other electromechanical products.
• Experience developing custom actuators, drivetrains, latching systems, or compliant mechanisms

Benefits

• The starting cash range for this role is $135,000 - $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.