Senior Backend Developer (Node.Js)

At Basic-Fit, we are on a mission to make fitness accessible for everyone. With 4.1 million members and more than 1,500 clubs in 6 different countries, we are the largest gym chain in Europe, and we’re not slowing down any time soon—we open more than 100 clubs in a year!

One of the reasons we can grow this quickly is because we supercharge our clubs with hardware and software. This allows our club hosts to have more time for our members and enables 24/7 club accessibility. We are very fond of self-service, ensuring that members have full control over their membership. Going on a long vacation and want to temporarily freeze your membership? There’s a button for that! Canceled your membership but have second thoughts? There’s a button for that! Our goal is that every member is able to help themselves, whenever they want, wherever they want.

To contribute to our mission, we also build features that get our members moving—whether by helping them pick their very first workout, giving them a little present to get them moving again, or awarding users badges for coming to the club!

But be aware, this is not an easy task. What we do is important to a lot of people; every error and every performance bottleneck can impact the fitness experience a member has. As a developer, you need to make sure that all our software and hardware runs smoothly. The applications you build must handle millions of requests without breaking a sweat, and the hardware needs to be properly serviced and operational across all 6 countries. On top of that, Basic-Fit likes to move quickly, and so do our teams! That’s why we minimize unnecessary rituals and focus on the exciting stuff—building software that really matters to our members.

About this role

As a Senior Backend Developer you are not just tasked with building features off the roadmap. You are a pivotal person that reshapes the way we work. You don't just look at how you can improve the way you work but you think of collective improvement as a default.

In this role you will be tasked to:

• Help build and maintain APIs.
• Define Service Level Objectives for the APIs and systems in our platform.
• Come up with structural improvements to work towards those objectives.
• Support the teams with documentation, architectural design, and solving challenging bugs.
• Help form the long term engineering roadmap and dictate what we invest time in.
• Be generally co-responsible for non-functional topics like security, privacy, and performance.
• Drive the way we adopt AI in our development process. (No prior experience required, just excitement to learn more about it with us.)

What it takes to work at Basic-Fit

• You need to be a problem solver at heart, using software as your weapon of choice.
• You understand that a wide array of different people is required to make a big impact, and you are not afraid to knock on some doors to get things done.
• Working at Basic-Fit means you eat scale and complexity for breakfast, and that growth is a guarantee.
• You are eager to take responsibility and know how to manage risk well.
• You are knowledgeable about your craft and have demonstrated experience with at least some of our tech stack (see below) and you enjoy sharing your knowledge.

And that’s where a smart person like you comes in, if you’re up for the challenge. Don’t worry, you’ll have plenty of back-up!

In Tilburg, a talented team awaits you with open arms. In our development teams, you’ll find a mix of:

• React (Native) developers
• Node.js developers
• Product Owners
• Designers
• QA Engineers

To help you become the best version of yourself, you’ll even have a Talent Coach who looks out for your personal growth.

Our Tech Stack

We build our applications with:

• React
• TypeScript
• Tailwind
• Storybook
• Service Workers
• Next.js
• Playwright

We build our APIs with:

• Nest.js
• TypeScript
• Prisma
• Postgres
• Redis
• Azure EventGrid
• Azure ServiceBus

To keep everything running, we use:

• Heroku as our cloud environment
• Azure DevOps for all of our repositories and CI/CD pipelines
• New Relic as our logging, monitoring, and alerting stack
• Akamai as our primary WAF and CDN
• GitHub Copilot as your AI pair-programming partner

Perks & Benefits

• A free Basic-Fit gym membership (duh)
• We host internal hackathons (sometimes even in the club!)
• An informal (you can wear jeans and sneakers if you like), international (many cultures and languages) and friendly, down-to-earth environment
• Plenty of opportunities for your own initiatives and to make an impact
• Unlimited access to the online training courses of LinkedinLearning and GoodHabitz
• Good benefits, including travel allowance, a bicycle plan, discount on additional health insurance, work from home allowance and participation in our pension scheme (Basic-Fit pays 52% of the premium)
• You will be working in an awesome office in the Plan-T building next to Tilburg Central Station
• A beautiful gym (fitness equipment, spinning bikes, virtual group lessons) at our headquarters (in Hoofddorp) which you can use anytime

Are you curious, entrepreneurial, practical, and do you have a playful demeanor? Basic-Fit is the right place for you. Please feel invited to grow with us, to make an impact and to share our mission. Welcome to the Orange Family.

If you have any questions, please contact Dorus (Corporate Recruiter) via dorus.wolters@basic-fit.com