Fyous is a Sheffield-based deep-tech company rewriting the rules of manufacturing. Our PolyMorphic Moulding technology uses tens of thousands of digitally controlled pins to form a mould in minutes, thermoform a part directly over it, and reconfigure into the next shape. No resin. No waste. No single-use tooling.
We're backed by world-class investors including Scott Crump inventor of FDM 3D printing and founder of Stratasys, and are targeting a £100m valuation by 2029.
The global clear aligner market is worth around £5 billion and growing at ~27% a year. Every aligner on the planet is currently made the same way: a one-shot resin mould is 3D printed, used once, and thrown away. A typical patient burns through ~52 of them. A mid-sized lab spends upwards of £400,000 a year on resin that ends up in a skip. We've invented the thing that kills that.
There's just one thing standing between the hardware and the world. The software.
Our Culture
Culture at Fyous is anchored in three values: Have Integrity, Innovate, and Inspire. In practice; own your outcomes without excuses, challenge assumptions before they become bad decisions, and constantly raise the bar — for yourself, your teammates, and the market. We move fast, we speak plainly, and we expect the same from everyone regardless of experience level.
We invest in growing our team personally as well as technically — through a curated library, regular feedback in the spirit Radical Candor, and a belief that environment and opportunity shape excellence as much as ability does. What matters to us is how you think.
The Role
There's one thing standing between our hardware and the world; the software. That's Pinpoint — the computational brain of Ghost, our dental machine. It takes a patient's STL dental scan and works out exactly how ~20,000 individually addressable 0.3mm pins, approaching from multiple directions, should configure themselves to form the mould — then validates that the result will actually thermoform a clinically acceptable aligner before a single pin moves.
You’ll join as a software hire, working directly with our Senior Software Engineer who owns Pinpoint end-to-end. They'll mentor you on computational geometry, and the trade-offs involved in shipping software that drives a physical machine in a medical context. In return, you'll do real work — not coffee-fetching, not ticket-shuffling. From day one you’ll own meaningful pieces of the pipeline and ship code that ends up driving a real machine forming a real aligner that a real patient will wear.
One Non-Negotiable: You Build With AI
If you are not actively building with AI — Claude Code, Cursor, Codex, whatever the bleeding edge looks like the week you read this — you are not our candidate. The hard parts of Pinpoint are still on humans, but a small software team shipping into medical only hits the throughput we need if everyone leans into every tool available.
We want someone who treats these tools as a force multiplier, has opinions about using them well, and is already more productive because of them. If that excites you, we should talk.
What We Need From You
* A degree in Computer Science, Mathematics, Physics, Engineering, or a closely related discipline — 2:1 or expected to graduate with 2:1 in 2026, or equivalent industry experience.
* Strong fundamentals in a systems language — ideally C++ or Rust, but a strong C, C#, or modern C++-adjacent background plus demonstrable appetite to go deeper is fine.
* Right to work in the UK.
Role Fit (you'll thrive here if you…)
* Work well in small teams where you enjoy being accountable for outcomes, not just tasks.
* Thrive in fast moving environments where priorities shift and execution matters more than process
* Communicate clearly in writing and in person.
* Have taste for simplicity — you know when to build something clever and when to ship the simplest thing that works.
* Equity: all employees own a piece of Fyous
* Private healthcare: full coverage
* Discounted Mous products
* Free onsite parking
* Sheffield HQ — primarily on-site, with sensible flexibility
Application Process
Send your CV and a short 2-minute video to careers@fyous.com with:
* Something you've built that you're proud of — code, project, paper, anything. Depth over breadth.
* A specific example of how you use AI coding tools — what you delegate, what you don't, where they fall down.
* Anything else you think we should know.
Further Recruitment Process
* Technical challenge
* On-site interview
* Final interview
We're ready to hire immediately but happy to wait for the right candidate.
Join us in rethinking how things are made.
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