Junior Product Development Engineer

Sheetak builds thermoelectric cooling and heating systems, from development kits to custom production hardware. We are looking for a junior engineer who wants to build things, not just design them on a screen. You will work directly with our Product Manager on new product ideas, customer prototypes, and custom applications, taking projects from a rough concept to a working, testable prototype. This is a hands-on, generalist role: mechanical design, fabrication, firmware and electronics, assembly, and light project management on your own builds, all in the same week.

What You Will Do:

• Design mechanical parts and fixtures in 3D CAD for new product concepts and custom customer applications.

• Build and test physical prototypes: 3D printing, and machining on a mill or lathe when needed.

• Get prototypes working end to end: wire it up, load firmware, get it running on the bench.

• Do electronic assembly and prototyping: soldering, wiring harnesses, board bring-up, bench debugging.

• Iterate fast on customer-specific rigs and one-off builds, often with limited specs and a lot of ambiguity.

• Track parts, timelines, and outside vendors for the builds you own. What You Need:

• Mechanical design project experience (a college team project such as Formula SAE, robotics, or rocketry counts).

• Strong 3D CAD skills and a portfolio of designed and printed parts.

• Comfortable in a machine shop: can run a mill or lathe when a job calls for it.

• Solid coding and firmware background (Arduino/C-family experience is a good sign).

• Willing to do hands-on assembly work, both mechanical and electronic.

• Self-directed and comfortable picking up new tools without a lot of hand-holding. No project management or industry experience required — just a strong CAD portfolio, hands-on instincts, and the drive to see a build through from concept to working prototype.