Full-Stack Engineer

Company : Relu

Job Type : Full Time

Leuven, Belgium

Job Description - Full-Stack Engineer

Your mission

Are you passionate about technology with a purpose? Want to make a meaningful impact on people's health? Want to work in an AI-native company? At Relu, we're growing - and we're looking for someone like you.

We're looking for a Full-Stack Engineer to join our Platform team; the web app, 3D viewer, workflow automations, integrations and infrastructure that hundreds of dental professionals rely on every day. You will:

Build and scale our web platform used by thousands of users globally, and ensuring that it can handle the growing amount of users & orders.
Build agents that run the digital backbone of a dental lab; automating everything from patient scan intake and order entry to customer emails and 3D print queues.
Think from a user’s perspective to design & implement slick user interfaces.
Ship features across our 3D mesh viewer; editing tools, visualization controls and model handling.
Build and harden integrations with scanners, printers, CAD/CAM partners, ERPs and more.
Improve reliability and observability across the platform.

Your profile

We're open on experience level. What matters is that you have some real hands-on experience: an internship, your own projects, or applied work with others. Whether you're fresh out of your Master's or have a few years of front-end work behind you, if you're smart and ready to contribute, we want to hear from you.

What you should bring to the team:

You can find your way around both a frontend (TypeScript/React) and a backend (Python/FastAPI) codebase. You don't have to be expert in both, but you're not afraid of either.
A working understanding of databases and APIs, and the curiosity to reason about *why* something behaves the way it does (transactions, race conditions, third-party integrations with auth and rate limits).
You can debug: when something breaks, you dig in with logs, metrics and error-tracking tools rather than guessing.
You care that the code you ship works and doesn't break things around it.
You have an eye for design, and think from a user-perspective to build excellent UX.

The 'Nice-to-haves':

Experience with 3D graphics on the web (Three.js / WebGL), meshes, or medical/scientific visualization.
Familiarity with cloud infrastructure and DevOps (AWS, CloudFront, CI/CD, observability tooling).
Exposure to dental, medtech or CAD/CAM domains.
Comfort building with and alongside AI/LLM tooling.

How you work:

You think sharply, and you'll be surrounded by people who do the same.
You're an independent thinker: you don't blindly implement tickets. You think through the consequences and connections of your work and find smart solutions to problems.
You're reliable — people can count on you to see things through.
You communicate. You pick up a ticket, ask questions when in doubt, and then execute until it's done — without breaking other things along the way. We don't work in silos.

Our Tech Stack = Your Tech Stack:

Frontend: Vue.js, TypeScript, Three.js
Backend & APIs: Python, FastAPI
Data & Databases: PostgreSQL, SQLAlchemy
Infrastructure & DevOps: AWS, Terraform, CI/CD, Docker, Kubernetes
Observability: Sentry, Grafana, Faro RUM
Integrations & Partners: 3Shape, iTero, Medit Link, Formlabs, and a growing list of scanner/printer/CAD-CAM APIs

Practical Requirements / Eligibility:

MSc in Computer Science or something related
Experience with front- and/or back-end related work
Fluent in English (written and spoken)
Valid work authorization in Belgium
Able to work from our Leuven office at least 3 days per week

Why us?

A mission that matters: We’re transforming dental care to make high-quality dentistry accessible globally.
A fast-moving team that ships: A collaborative, ambitious team that executes at hyper-speed while keeping the day-to-day genuinely fun.
A dream workspace: A sunny office with stunning views over Leuven, park walks, and coffee by the Vaartkom.
A vibrant culture: Regular after-works, sports sessions, hackathons, and company retreats.
Uncapped growth: The opportunity to grow into broader roles as the company — and you — scale.

About us

Relu is a Leuven-based AI start-up automating the 3D design of dental appliances - freeing up time, cutting costs, and improving global access to dental care.

We’re a team of 25 engineers, business and dental people who:

Learn fast
Own what we do
Get stuff done

We are actively growing our team and our technology evokes more interest every day, expect your role to evolve over the years!

Original job Full-Stack Engineer posted on GrabJobs ©. To flag any issues with this job please use the Report Job button on GrabJobs.

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About the Company

Relu

Relu is a Leuven-based software start-up revolutionizing dental care through AI. Our mission: automate 80% of dental CAD & treatment planning work — freeing up time, cutting costs, and improving global access to dental care. We’re a team of 20 engineers, dentists, and sales people who: Learn fast Ow...

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