JavaScript Developer (m/f/t)

We want to develop the best software for our clients. We are pragmatic, agile, fast and always have the client benefit in mind. We create solutions together and involve everyone. 
Are you passionate about digitalizing the fitness industry together with us and would like to use the latest technologies? Then you are exactly right here.


  • You are responsible for the active co-creation of our software solutions and spend your time in programming instead of meeting in conference rooms
  • Together with your product team you use modern technologies (e.g. MV*-Framework in JavaScript, React, TypeScript, Mobx, Jest)
  • You shape lightweight technologies into highly available and scalable components within a DevOps approach
  • You design and develop high-quality software components in an agile environment
  • You think outside the box, see the big picture in our applications and you communicate fluently in German and English


  • Ideally you have experience in the development and operation of high availability applications
  • You have an excellent understanding of JavaScript, its language core and solid knowledge of web technologies (HTTP, REST, OAuth) with
  • You know the difference between simple jQuery applications in HTML pages and serious application development with JavaScript
  • You have experience in the development and design of web applications as well as in automated tests (unit tests, GUI tests, etc.)
  • You enjoy teamwork, are results-oriented, have a high quality awareness and are willing to look at our product again and again


  • An attractive workplace in the heart of Hamburg, Kraków or mobile work all over the world
  • An own fitness studio that can be used free of charge, including a personal trainer and a health coach for all colleagues
  • Our own CashBack sports programme "MySports", which we use to subsidize your sports activities
  • High level of personal responsibility, quick assumption of responsibility and leads who communicate with you at eye level
  • Supply of drinks, fresh fruit and snacks
  • An attractive BAV subsidy and HVV benefits
  • Flat hierarchies and a motivated and dynamic team


As Sport Alliance, we make it easier for people to access sport by digitalizing the fitness industry. As the market leader in Germany, we rely on the state-of-the-art technologies and methods to create a cloud-based platform that can map all relevant business processes from independent gyms to international chains.
Building on this, we have created a unique ecosystem of innovative products and services in the areas of fintech, e-commerce and lead generation.
The Sport Alliance group consists of Magicline, Finion, MySports, and Pay Due and we’re not done yet. Our offices in Hamburg and Cracow are located in the heart of the city centre. Around 200 colleagues are working on new ideas and solutions to lead the industry into the future.


Then become a part of our team and apply now online. If you have any questions, then feel free to get in touch with Sarah Leers (+49 40/429 324 232) or Sabine Zienczyk (+49 151 150 42 163). You can also send a mail to:

Due to recent events: In order to protect you and us, our job interviews in the first step are currently only conducted by phone or video phone.  We are also there for you in these special times and look forward to getting to know you.

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