Senior Mechanical Design Engineer - Closures (City Hopper)

About the Team

DoorDash Labs, established in 2018, serves as the innovation hub for DoorDash, focusing on developing automation and robotics solutions to enhance last-mile logistics. The team's mission is to create technologies that support and augment human networks, aiming to improve efficiency for Dashers, merchants, and consumers alike. We’re ruthlessly focused on business impact. We are a highly senior team composed of former pioneers from a variety of different robotics industries. As of 2025, DoorDash has completed 10B lifetime deliveries. We’re focused on how to do the next 10B even better.

About the Role

As a Senior Mechanical Design Engineer – Closures, you will own the architecture, design, and execution of closure systems for DoorDash's next-generation autonomous delivery vehicle. This role sits at the intersection of mechanical engineering, vehicle integration, and product reliability, delivering robust access systems that operate safely and reliably through millions of delivery cycles in demanding real-world environments. You'll partner with industrial design, vehicle architecture, systems engineering, manufacturing, reliability, and operations teams to create closure systems that delight customers while meeting the rigorous durability, cost, and manufacturability requirements of a commercial autonomous fleet.

Responsibilities

• Contribute materially to the form and function of a high-profile delivery robot—your work will be on display for all to see and interact with.
• Build products that millions of people interact with—not just drive. Every engineering decision directly impacts the customer experience.
• Solve first-of-their-kind engineering problems at the intersection of robotics, automotive engineering, and logistics.
• Work on products that move quickly from concept to real-world deployment, where engineering decisions immediately translate into operational impact.
• Join a highly collaborative team where mechanical engineering plays a central role in defining the future of autonomous last-mile delivery.

Requirements

• Bachelor’s or Master’s degree in Mechanical Engineering or a related field.
• 6+ years of experience designing automotive body, closure, or mechanism systems, taking products from concept through production.
• Experience with commercial vehicles, autonomous vehicles, robotics, or high-duty-cycle products is a strong plus.
• Deep expertise in closure mechanisms including hinges, latches, actuators, linkages, counterbalance systems, and environmental sealing.
• Design for high-volume manufacturing using processes such as sheet metal stamping, castings, injection molding, extrusions, and welded assemblies.
• Extensive CAD experience (NX (preferred), SolidWorks, CATIA) and comfort designing complex assemblies with robust parametric models.
• Skilled at tolerance analysis, stack-up management, GD&T, and designing robust interfaces between mechanical systems.
• Strong understanding of structural design, fatigue, durability, corrosion prevention, and environmental sealing for outdoor products.
• Use engineering fundamentals and data to make decisions and leverage simulation tools (FEA, kinematic analysis, MATLAB, Python, or similar) to validate concepts.
• Demonstrated success leading cross-functional technical discussions and influencing engineering decisions across multiple disciplines.
• Comfortable reviewing CAD in a design review, troubleshooting hardware on the prototype floor, or working with manufacturing engineers to improve assembly quality.

Pay

The national base pay range for this position within the United States, including Illinois and Colorado, is $139,400—$205,000 USD. The successful candidate’s starting pay will fall within this range and is determined based on job-related factors including, but not limited to, skills, experience, qualifications, work location, and market conditions. In addition to base salary, the compensation for this role includes opportunities for equity grants.

Benefits

• Comprehensive benefits package including a 401(k) plan with employer matching.
• 16 weeks of paid parental leave.
• Wellness benefits and commuter benefits match.
• Paid time off and paid sick leave in compliance with applicable laws (e.g., Colorado Healthy Families and Workplaces Act).
• Medical, dental, and vision benefits.
• 11 paid holidays.
• Disability and basic life insurance.
• Family-forming assistance and a mental health program.

For salaried roles: flexible paid time off/vacation, plus 80 hours of paid sick time per year.

For hourly roles: vacation accrued at about 1 hour for every 25.97 hours worked (e.g., about 6.7 hours/month if working 40 hours/week; about 3.4 hours/month if working 20 hours/week), and paid sick time accrued at 1 hour for every 30 hours worked (e.g., about 5.8 hours/month if working 40 hours/week; about 2.9 hours/month if working 20 hours/week).