Mechanical Design Engineer

About Loombotic

Loombotic is the SendCutSend of wire harnesses. Harnesses are inside almost every piece of hardware - robots, aircraft, defense systems, industrial machines - but they're still built by hand, with 6-12 week lead times that stall entire products. We're changing that by building our own instant-quoting software and our own manufacturing line - the robots, vision systems, and tooling that automate work the industry still does by hand. The result: custom harnesses designed, built, and shipped in about a week. Teams building robotics, aerospace, and advanced thermal and data-center hardware rely on us to get custom cables in days, not months.

We don't buy our factory off the shelf - we design and build the machines, fixtures, and tooling that make automated harness production possible. That's what this role does.

The role

This is a role where you own whole machines, not just parts. You'll design the mechanical systems that build harnesses - mechanisms, end effectors, fixtures, tooling - and then integrate motion, controls, and our vision/robotics systems into a machine that actually runs on the floor. You'll take problems from a blank Onshape document through prototyping, bring-up, and debugging, working shoulder-to-shoulder with robotics, controls, and the technicians running the line.

We're hiring for hunger, fundamentals, and a track record of building real things - not years on a resume. Whether you're a recent grad who's been building robots in your garage or a seasoned machine builder who wants more ownership, what matters is that you've actually built things and want to own machines end-to-end. Everyone here gets real mentorship and a steep growth curve.

Problems you'll get to solve

A few of the problems you'd actually work on

Design machines and end effectors that handle limp, variable wire and tiny connectors: the parts the industry still says can't be automated

Build fixtures and tooling that turn fiddly manual steps (routing, strain relief, seating) into fast, repeatable operations

Integrate mechanical, motion, and vision into a machine that runs reliably on the floor, not just on the bench

Hit tight tolerances and cycle times while keeping machines buildable, serviceable, and cheap enough to replicate

Get from a blank Onshape doc to a working, production-grade machine fast, then make the next one better

What you'll do

Design mechanisms, end effectors, fixtures, and tooling for the automated line in Onshape

Own machines end-to-end: concept → CAD → prototype → bring-up → debugging → running in production

Integrate your mechanical designs with motion, actuators, controls, and our vision/robotics systems into working machines

Prototype fast with 3D printing, machining, and off-the-shelf parts; iterate on real hardware

Apply DFM/DFA and sound tolerancing; spec materials, hardware, and fits

Source parts and work with machine shops and vendors

Be on the floor when your machine runs - measure cycle time, yield, and reliability, and make it better

You are

A mechanical engineer at any level who has built real things - robots, machines, mechanisms, projects (school, internships, FRC/FSAE, personal builds, or years of professional machine design all count)

Hands-on and resourceful: happy in CAD and at a workbench with a wrench

Hungry for ownership and able to learn fast

Comfortable with ambiguity and rapid iteration

Excited to work across mechanical, controls, and robotics rather than stay in one lane

Happier when the machine is running on the floor than when the CAD looks clean

Minimum qualifications

Mechanical engineering degree or equivalent hands-on experience - open to all experience levels, from new grad to seasoned

Demonstrated experience designing and building real mechanisms or machines (projects, internships, competitions, personal builds, or professional work)

Proficiency in Onshape or another parametric CAD tool (you can pick up Onshape fast if you know So