Job Details



Louvain-la-Neuve, Belgium


Permanent Contract

Elium is a knowledge sharing platform that helps our users capture, curate and share essential information to successfully collaborate. We aim to make a true difference for both the end user and the business.

We’re looking for a strong software developer who could take the lead of our mobile app and who’s not afraid to contribute to our core web app (both in React).



The engineering team has the responsibility to develop and maintain the core application used by more than 100,000 users across the world. Together with the product team, we define what will be part of the next sprint and how.

The whole elium application is developed in-house from ideation to release. We believe in the virtues of dogfooding.

Here are some of the technologies we use: React, React-Native, GraphQL, Relay, SlateJS, Styled-component, Webpack, Python, PostgreSQL, React Native, Immutable Infrastructure as Code.



We work in 4 weeks sprints to ensure the maximum quality of our work. We define challenges as a team and focus on delivering great value. Collaboration and co-creation are our founding principles.

At Elium, developers don’t just code, they actively participate in the product development. You’ll design the features together with the product team. 

You’ll be given the space and autonomy to own, learn and build while in a supportive and friendly environment. We are a small team, so every member has a huge impact on the product.



We strongly live by the values of trust, transparency, passion, creativity, autonomy, collaboration, boldness, humility, fun, work-life balance and diversity across all our teams and our whole ecosystem of customers and partners.

We are lovers of fine things, be it good food, nicely crafted products or innovative technologies.



Your role will be to develop, maintain, and improve Elium’s mobile application. You will also contribute to our core web application.

  • Maintain the iOS and Android versions of the application.
  • Refine, implement, and reflect on new features in collaboration with product and design
  • Lead changes across the Mobile Application
  • Collaborate with the team members to maintain the frontend application,  document, help, and review code.
  • Be one of the guardians of high quality UX and UI
  • Squash remaining bugs found internally or by our clients
  • Stay up-to-date on emerging technologies, and inspire others with new possibilities
  • Renovate the current stack, when relevant



To be successful, we believe you should have the following technical experience

  • 5+ years of combined experience in frontend and mobile (example: 2 years in mobile and 3 in frontend)
  • You’ve already shipped a mobile app on the Apple and Android stores
  • A strong experience with React and React-Native in mobile development.
  • Care about the smallest details of look & feel, user flows, and UI/UX
  • You are not afraid of changing a major library or refactor a significant part of an application
  • Good Experience with web technologies (CSS, JS, …)
  • Experience with Kotlin, SwiftUI and/or python an is a plus but not required


We’ll also expect the following:

  • You take ownership and pursue resolution tenaciously
  • Like the rest of the team, you are easy-going and open to feedback
  • You are autonomous yet collaborative, curious, self-driven, a fast learner, and comfortable venturing into the unknown
  • You value trust, initiative, responsibility, open-mindedness and collaboration
  • You stay up to speed with technologies and like to introduce them to your teammates
  • You are customer-oriented
  • You are curious to understand the business needs behind the requested development
  • You read, speak and write fluent English. Speaking/reading in French is a plus.



  • Work in a team of open-minded, smart and friendly people;
  • The freedom and autonomy to take initiatives and full ownership;
  • The opportunity to think globally about problems (from client interviews to deploy in prod);
  • A work environment largely based on remote working (remote-first);
  • A permanent job with an attractive salary; 
  • A company car;
  • A mobile phone subscription;
  • A laptop of choice;
  • 6 extra-legal days off;
  • A DKV hospital insurance plan;
  • Company sponsored events, team buildings and happy hours



The selection process is just as important for you as it is to us to make sure that we will be a match. 

Here’s what you can expect: 

  1. Short phone interview
  2. Meeting Brice, the hiring manager 
  3. Meeting Sophie, HR
  4. Meeting your teammates
  5. Short intro with Antoine, our CEO