At Runtastic we believe in helping people improve their fitness and overall health. Moreover, we believe in creating an exciting work environment in which we can thrive personally, professionally and even physically. Team members from all over the world get together in our inviting offices to tackle unusual and fascinating challenges every day. We offer a number of benefits and let our creativity run wild on our Days of New Ideas. Because only if our employees are happy, our hundreds of millions of users can be happy too.


Vienna, AT

Senior Software Engineer - API Engineer

€50,000-€75,000 / YEAR

LOCATIONS: Linz or Vienna
Due to the ongoing COVID-19 situation, our teams are currently working from home, and we are onboarding new hires remotely.

The Partner API is the official communication interface to a wide range of top-class partners. Our API connects thousands of users each day to their favorite gear, their favorite app or a unique challenge. To achieve this, we utilize the Ruby programming language in combination with a range of different tools such as MySQL, MongoDB, RabbitMQ, Sinatra, OpenShift and Kong API Gateway.


  • Designing and implementing highly secure, fault-tolerant APIs powering all kinds of third-party integrations
  • Discussing requirements and constraints with your team as well as challenging the status quo
  • Applying the highest technical standards while working with cross-functional teams
  • Proactively refactoring code that needs improvement
  • Sharing knowledge through well-written documentation


  • 5+ years of experience working on fast-paced software development projects
  • Openness to feedback and interest to work in a multicultural environment
  • Willingness to explore and learn new technologies as well as programming languages
  • Familiarity with high-level dynamic languages (e.g. Ruby, Scala, Python etc.)
  • Knowledge of modern API design practices and standards
  • Experience with Microservices Architecture and DevOps Culture
  • Very good English skills

And here’s the fine print: Our salary range starts at EUR 53,060 gross per year. Your actual offer depends on your skillset and experience.