Mechanical Engineer (Fall 2026 Co-op)

About the role

Fab1 is our first full-scale microfactory located in Billerica, MA. This role is ideal for a Mechanical Engineering Co-op who enjoys the entire engineering process—from sketching to modeling to building and testing.

Responsibilities

• Design and Iterate Fast: Take on real mechanical design problems across Fab1 projects, such as fixtures, workstations, material handling, tooling, and more, moving quickly from concept to CAD to working prototype.
• Build What You Design: Fabricate and assemble your own prototypes and production hardware using mills, lathes, laser cutters, welders, 3D printers, and standard shop tools.
• Rotate Across Projects: Work across multiple active workstreams on the ME team, picking up context quickly and contributing wherever the team needs hands and ideas.
• Test and Improve: Validate your designs on the shop floor, troubleshoot what doesn't work, and iterate toward a production-ready result.
• Support Documentation: Produce clear CAD models and basic technical drawings that a teammate or vendor could build from.
• Learn the Full Stack: Get exposure to how mechanical design connects to robotics, automation, and factory operations in a live manufacturing environment.

Qualifications

• Currently pursuing a BS in Mechanical Engineering or a related field; junior or senior standing preferred.
• Solid CAD skills (Onshape, SolidWorks, Fusion 360, or similar) and the ability to go from a rough idea to a modeled part quickly.
• Comfortable and safe operating shop tools and equipment—mills, lathes, laser cutters, welding, 3D printing, hand and power tools.
• A fast learner who can pick up new tools, processes, and project context with minimal ramp-up.
• Bias toward action: you’d rather build a rough prototype and learn from it than perfect a design on paper.
• Strong communicator who works well within a team and can take direction from multiple engineers across rotating projects.

Nice to have

• Prior shop, machine design, or robotics club/competition experience (FSAE, FRC, Baja SAE, etc.).
• Experience with sheet metal, weldments, or basic structural design.
• Exposure to manufacturing, construction, or factory automation environments.
• Familiarity with GD&T fundamentals.