Boston Materials
Design Engineering Co-op — Mechanical Engineering
8 Federal St Ste A, Billerica, MA 01821-3570
On-site · Full-time
First seen by offpeak October 4, 2026
See your drive time Apply on Boston Materials's site
Your Responsibilities
- Design the components that surround and support our thermal interface material inside an electronic package — lids, stiffeners, carriers, shims, seals, standoffs, and the assembly provisions that hold everything in position.
- Create 3D CAD models and fabrication drawings, and iterate designs against tolerance stack-ups, assembly loads, thermal budgets, and manufacturability feedback.
- Fabricate, build, and test package mockups to demonstrate design feasibility, including mechanical, thermal, and accelerated reliability testing.
- Machine parts in house on shop equipment — abrasive waterjet cutting, manual milling, and CNC milling.
- Assemble and instrument test articles hands-on: material application, fastening to specified loads, thermocouple and sensor placement, and teardown inspection.
- Collect, organize, and analyze mechanical and thermal test data to support design decisions and identify meaningful trends.
- Engage machine shops, vendors, and suppliers to source custom parts and hardware — request quotes and technical specifications, incorporate DFM feedback, and track fabrication against project schedules.
- Author and maintain drawings, design documentation, and assembly work instructions for evolving hardware.
- Provide general engineering support across the team as project needs change.
Responsibilities will evolve over the course of the term and are expected to include a mix of the following:
Your Required Skills and Expertise
- Currently pursuing a Bachelor's or advanced degree in Mechanical Engineering or a closely related discipline.
- Working proficiency with a 3D CAD package (SolidWorks preferred), and interest in becoming fluent in fabrication drawings, tolerancing, and GD&T.
- Experience with or genuine interest in metal fabrication.
- A hands-on disposition and interest in seeing parts you designed get made, assembled, and tested.
- Comfortable moving between different types of tasks and problems in a fast-paced, changing environment — a single week may span CAD, machining, vendor coordination, benchtop assembly, testing, and documentation.
- Strong analytical skills and comfort working with data.
- Clear, organized technical writing ability.
- Demonstrated hands-on experience of any kind — academic labs, personal or maker projects, machining, electronics, coding, or a prior co-op/internship — is valued.
- Interest or coursework in mechanical design, mechanics of materials, heat transfer, or FEA is a plus.
- A safety-conscious, self-directed, and organized approach to work.
What You'll Gain
- Ownership of meaningful design work and broad exposure to mechanical design for advanced semiconductor packaging at a growing advanced-materials company developing next-generation liquid metal thermal interface materials for AI and data center hardware.
- Experience spanning CAD and drawing release, in-house fabrication, prototyping, machine-shop and vendor coordination, mechanical and thermal testing, and technical documentation.
- Real time on metal fabrication equipment — waterjet, manual mill, and CNC — and the design judgment that only comes from making the parts you drew.
- A close look at how packaging hardware decisions — loads, tolerances, materials, and interfaces — determine whether a thermal solution works in a real system.
- The opportunity to see parts you designed fabricated, assembled, and tested in hardware that goes in front of customers.