Mechanical Engineer (Fall 2026 Co-op)

Reframe Systems Inc; Billerica (MA); On-site; USD 28,000 - 34,000; Full time

Job summary

Reframe Systems Inc. seeks a Mechanical Engineering Co-op to join FAB1, our first full-scale microfactory in Billerica, MA this fall. You will design, model, build, test, and refine mechanical systems, working across workcells, fixturing, and production infrastructure that keep the factory running.

This hands-on role places you in the shop with real-time CAD to prototyping work. You’ll gain exposure to robotics integration and factory operations while rotating across projects and collaborating

Qualifications

• Currently pursuing a BS in Mechanical Engineering or related field; junior or senior standing preferred.
• Solid CAD skills with quick sketch-to-CAD-to-prototype iteration.
• Comfortable operating shop tools and equipment — mills, lathes, laser cutters, welding, 3D printing, hand and power tools.
• Fast learner who can pick up new tools, processes, and project context with minimal ramp-up.
• Bias toward action: prefer building rough prototypes and learning from them over perfecting on paper.
• Strong communicator who works well in a team and can take direction from multiple engineers.
• Available for a full-time, semester-length co-op in Billerica, MA this fall.

Responsibilities

• Design and Iterate Fast: tackle real mechanical design problems across FAB1 projects and move from concept to CAD to prototype.
• Build What You Design: fabricate and assemble your prototypes and production hardware using shop equipment.
• Rotate Across Projects: work across multiple active projects, quickly gaining context and contributing wherever needed.
• Test and Improve: validate designs on the shop floor, troubleshoot issues, and iterate toward production-ready results.
• Support Documentation: produce clear CAD models and basic drawings that teammates or vendors can build from.
• Learn the Full Stack: gain exposure to how mechanical design connects to robotics, automation, and factory operations.

Skills

SolidWorks

Fusion 360

Onshape

Team player

Education

BS in Mechanical Engineering

Tools

Mills

Lathes

Laser cutters

Welding

3D printing

Job description

About Us

Reframe Systems is a Physical AI and robotics company on a mission to make high-performance housing attainable and abundant in the communities where people want to live. Through our vertically integrated delivery model and highly automated microfactories, we deliver climate-resilient homes and buildings with greater speed and predictability than traditional construction.

Our volumetric modular buildings are produced in our Andover, MA microfactory, with a growing pipeline across North America and a new microfactory on the way. We are building a system that balances repeatability with site-responsive design, enabling homes adaptable to each site, community, and customer need. Our cross-disciplinary team brings together architecture, robotics, design engineering, software, factory operations, and field delivery to change how housing gets delivered.

We're reimagining the future of housing through a smarter and more sustainable system that empowers people to live better. Come build it with us.

What We're Looking For

We're looking for a Mechanical Engineering Co-op to join our team at FAB1, our first full-scale microfactory in Billerica, MA, this fall. This role is built for someone who loves the full loop of engineering: sketch it, model it, build it, test it, and fix it — fast. You'll rotate across active projects on our Mechanical Engineering team, working alongside engineers designing the workcells, fixturing, and production infrastructure that make our factory run.

This is a hands-on role. You'll spend real time in the shop — cutting, welding, printing, and machining your own parts — not just handing drawings off to someone else. We move quickly here, so we need someone who can take a rough idea, iterate on it in CAD, get a physical version in hand, and improve it based on what they learn, on a tight timeline.

What You'll Do

• Design and Iterate Fast: Take on real mechanical design problems across FAB1 projects — fixtures, workstations, material handling, tooling — and move 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 rather than a single fixed project, 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.

• Available for a full-time, semester-length co-op in Billerica, MA this fall.

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.