Backend Developer
Hybrid
Full Time
#Engineering
#Ruby on Rails
#API Development
#GitHub
#RSpec
#Web Applications
#Caching
#Unit Testing
#Performance Optimization
#Quality
#Agile Development
At Freeletics, we are on a mission to help people make fitness a permanent part of their lives through world-class digital tools. As pioneers in AI-powered fitness technology, we have built a global community of over 57 million users who rely on our personalized training plans and data-driven insights. We are looking for a talented engineer to help us continue disrupting the industry and scaling our platform to support our growing community.
Role at a glance
We are seeking a Senior Backend Developer to join our team on a full-time basis. This is a hybrid role based in Germany, where you will help us solve complex technical challenges and refine the systems that power our fitness ecosystem.
Your impact
- Design and maintain robust backend systems using Ruby on Rails that serve millions of active users.
- Take ownership of architectural decisions and establish best practices to ensure our platform remains scalable and efficient.
- Proactively identify performance bottlenecks and implement caching strategies to optimize the user experience.
What you'll need
- Extensive experience building web applications and high-traffic APIs.
- Deep proficiency in Ruby on Rails or similar modern web frameworks.
- A strong background in testing methodologies, specifically using RSpec to maintain high code quality.
- Comfort working within an Agile environment and collaborating via GitHub.
- A passion for clean, performant code and a desire to share knowledge within a cross-functional team.
- Fluency in English to thrive in our diverse, international team.
Perks and compensation
- A unique 4-day workweek model designed to support your work-life balance.
- Flexible working hours and a hybrid environment that offers both remote and office-based options.
- Comprehensive 401k and pension schemes.
- Dedicated budget and support for professional development and career growth.
- Generous paid time off to ensure you have plenty of time to recharge.
- Full relocation assistance if you are moving to join our team.
- Access to various wellness programs to support your physical and mental health.





