Senior Software Engineer, React / React Native

Posted Yesterday
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Warsaw, Warszawa, Mazowieckie, POL
In-Office
Senior level
Information Technology • Sports
The Role
Build scalable, high-performance services and applications using React and Node.js on real-time sports data. Responsibilities include writing clean, tested code, applying TDD and agile practices, contributing to AWS-based systems, influencing technical design, and collaborating through pair programming. Preferred experience includes React Native, cloud applications, microservices, CI/CD, automated testing, event streaming, Docker, and Kubernetes.
Summary Generated by Built In
Company Description

We’re the world’s leading sports technology company, at the intersection between sports, media, and betting. More than 1,700 sports federations, media outlets, betting operators, and consumer platforms across 120 countries rely on our know-how and technology to boost their business.

Job Description

As a Senior Developer in our LDA (Live Data App) Team we expect that you are passionate about your craft and already have a good understanding of modern development techniques. We expect that you value simplicity, clean code, and clean architecture, you practice TDD (Test Driven Development), pair programming and always welcome feedback. You will be an integrated and important part of the team you are assigned to, will be given mentoring, and training to learn more and gain experience. 

THE CHALLENGE:  

  • Build scalable, high-performance services on top of our real-time sports data, collected 24/7 globally for more than 30 different sports.    

  • Be an active part in making the most out of our AWS partnership  

  • Become a domain expert in the exciting world of real-time sports data  

  • A real opportunity to influence design and technology 

YOUR PROFILE:  

Required:  

  • Hands-on software development experience (in React and NodeJS)

  • Ability to write a clean, well-crafted, and tested code (XP, TDD) 

  • Agile mindset (focus on delivering working software, collaboration, and improvement) 

  • Shared values - relations, collaboration, trust 

  • Passion for technology 

Preferred skills or what you can develop with us:  

  • Knowledge of React Native is a big plus

  • Experience with cloud-based appreciations and microservices (AWS, Gitlab CI) 

  • Automation testing on various levels (BDD, Performance testing, Contract testing)

  • Distributed event streaming solutions (Kafka, RabbitMQ or similar)

  • Understanding how the code can be shipped (Docker, Kubernetes) 

  

OUR OFFER:  

  • The opportunity to work and develop within an inspiring and fast-growing company.  

  • The possibility to shape the future of Sportradar. All developers are directly contributing to products used by our clients in the global sports business.  

  • Involvement in shaping your own workday and career through a high degree of freedom to choose technology and your personal development.  

  • A collaborative environment with colleagues from all over the world (Engineering offices in Europe, Asia and US).  

  • A company culture that promotes social aspects, sports, physical exercise, and fun.  

  • Competitive salary and benefits

We believe great products are built by great teams working closely together. While we offer flexible working hours, this role is fully office-based, as we strongly value in-person collaboration, knowledge sharing, fast decision-making, and team connection. We see working together onsite as a key driver of innovation, learning, and success.

 

Additional Information

At Sportradar, we celebrate our diverse group of hardworking employees. Sportradar is committed to ensuring equal access to its programs, facilities, and employment opportunities. All qualified applicants will receive consideration for employment without regard to age, race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. We encourage you to apply even if you only meet most of the requirements (but not 100% of the listed criteria) – we believe skills evolve over time. If you’re willing to learn and grow with us, we invite you to join our team!

Skills Required

  • Hands-on software development experience with React and Node.js
  • Ability to write clean, well-crafted, tested code using XP and TDD practices
  • Agile mindset focused on delivery, collaboration, and continuous improvement
  • Collaborative approach aligned with shared values of relationships, collaboration, and trust
  • Passion for technology
  • Knowledge of React Native
  • Experience with cloud applications and microservices, including AWS and GitLab CI
  • Automation testing experience, including BDD, performance testing, or contract testing
  • Experience with distributed event streaming solutions such as Kafka or RabbitMQ
  • Understanding of Docker and Kubernetes
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The Company
HQ: St. Gall
2,300 Employees
Year Founded: 2001

What We Do

Sportradar is a leading global provider of sports betting and sports entertainment products and services. Established in 2001, the company is well-positioned at the intersection of the sports, media and betting industries, providing sports federations, news media, consumer platforms and sports betting operators with a range of solutions to help grow their business. Sportradar employs more than 2,300 full time employees across 19 countries around the world. It is our commitment to excellent service, quality and reliability that makes us the trusted partner of more than 1,600 customers in over 120 countries and an official partner of the NBA, NHL, MLB, NASCAR, FIFA and UEFA. We cover more than 750,000 events annually across 83 sports. With deep industry relationships, Sportradar is not just redefining the sports fan experience; it also safeguards the sports themselves through its Integrity Services division and advocacy for an integrity-driven environment for all involved.

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