Junior Hardware Engineer

Posted One Month Ago
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Stockholm, SWE
In-Office
Entry level
Artificial Intelligence • Robotics • Automation
The Role
Design, build, repair, deploy, and integrate robotic electrical and mechanical subsystems, including grippers, actuators, sensors, wiring, and mounts. Investigate robot failures in retail stores and use field learnings to improve future hardware versions. This hands-on role requires broad engineering skills, practical problem-solving, adaptability, and comfort working in a fast-moving startup environment.
Summary Generated by Built In

Cota Robotics puts robots to work in retail stores. They take on the repetitive, time-consuming jobs like inbounding goods, replenishing shelves and sorting stock, currently mostly overnight. They're driven from our control room in Stockholm and increasingly run on their own. We raised a €1.92M pre-seed in August 2026 and are live with retailers in Sweden and Finland. We're a small team based at Sankt Eriksgatan in Stockholm, where half the office is our own dark store.

 
About the role

You’ll work hands-on with the robot and make it survive real stores. Mounts, brackets, grippers, actuators, sensors, wiring, whatever the robot needs. Some of it will be properly engineered. Some of it needs to work by Thursday. You should be comfortable with both.

 
What you’ll do
  • Build, fix, and improve electrical and mechanical subsystems on the robot

  • Deploy robots into stores and see firsthand where they break

  • Fix what’s broken, then turn what you learn into the next version of the hardware

  • Design, 3D-print, and assemble parts, mounts, and fixtures, and integrate them with the electronics

  • Build and test prototypes of new designs

What we’re looking for
  • High agency: when something is broken, you fix it, whether or not it’s your job

  • Background in mechatronics, mechanical or electrical engineering, robotics, or similar

  • A very fast learner, happy to research unfamiliar problems as they come up

  • A tinkerer or maker who has taken more things apart than they’ve put back together

  • A generalist comfortable across a broad range of components and disciplines

  • Able to make something work in the short term and improve it later without confusing the two

  • Comfortable with CAD basics and hands-on prototyping

  • At home in a chaotic, fast-moving environment

  • We expect to fill this role in November or December 2026

  • You must already have the right to work in Sweden, as unfortunately, we’re not able to offer visa sponsorship at our current stage

How to apply: Tell us about something you built or fixed on your own, and link to it (project, repo, video, photos).


Why join
  • Build on real robots operating in real stores

  • Work across disciplines rather than in a narrow silo

  • Learn quickly from field deployments and hardware feedback

  • Help shape the next version of the system

Skills Required

  • Generalist comfort working across electronics, mechanics, wiring, and integration
  • Hands-on tinkering, making, or experience taking apart and rebuilding things
  • Ability to develop short-term working solutions and improve them later
  • Comfort working in a chaotic, fast-moving environment
  • Willingness to research and learn unfamiliar technical issues
  • Already authorized to work in Sweden
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The Company
8 Employees
Year Founded: 2025

What We Do

Cota Robotics builds and deploys a turnkey robotic workforce for retail chains, using AI-powered, general-purpose robots to automate repetitive, time-consuming store work such as shelf replenishment, inbound handling, and picking. Its robots operate around the clock within existing stores and workflows without requiring retrofits. Cota manages deployment and ongoing operations, while the robots create a live 3D digital twin that provides real-time visibility into stock, pricing, and planogram compliance.

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