Summer '27 Intern - Mechanical Engineering

moss • San Francisco, CA

2d

About The Position

At moss.ag, we build robots to go where humans won't, digitizing the physical outdoor world to make it machine-readable. Starting with tree farms — where a single field holds millions of plants no human has ever fully inventoried. We’re a small team of practical engineers with a long-term vision. We focus on real, messy, on-the-ground problems today, while working toward a future where autonomous field robots make harsh outdoor jobs easier and safer. The Role Join us as a Mechanical Engineering Intern on a fast-moving team of seven. Here, you’ll build things that actually get deployed. You’ll own projects across structural design, thermal performance, and packaging for our next-generation robotic sensor kits. Be ready to work through the full hardware development cycle: concept CAD, rapid prototyping, FEA, DFM iteration, supplier coordination, assembly, and field validation in live farm environment. We're looking for both a full time engineer, and intern candidates for co-ops, summer, and/or part-time roles.

Requirements

• Track record of hands-on personal projects (outside the classroom) demonstrating hardware skills
• Demonstrated understanding of structural analysis and failure modes of complex mechanical systems
• Proficiency in CAD software and FEA modeling
• Solid understanding of GD&T
• Comfortable making first-principles engineering trade-offs, even with partial information
• Experience integrating sensors, compute, and/or power systems into physical assemblies
• Comfortable building, assembling, and debugging physical hardware

Responsibilities

• Conceptualize new mechanical architectures for robotic systems in harsh environments
• Lead design reviews internally and externally with suppliers and partners
• Develop enclosure systems for thermal management, vibration resistance, and weather protection
• Perform tolerance analysis and DFM reviews with manufacturing partners
• Own prototype builds and field-test validation
• Collaborate closely with perception, robotics, and electrical teams to optimize full-system integration

What This Job Offers

• Job Type: Part-time
• Career Level: Intern
• Education Level: No Education Listed