Backend Developer

About Kambi
Kambi Group plc is a leading B2B provider of premium sports betting services to licensed gaming operators. Our services provide an end-to-end solution for operators wanting to launch a standalone Sportsbook or bolster their existing offering with an innovative sports betting product. From front-end user interface to customer intelligence, risk management and odds compiling, all built on our in-house developed software, we strive to deliver the ultimate service and solution to our partners.
Our vision is to create the world’s leading sports betting experiences, together with our partners.
Backend Developer – Shape Games
Contract type: Full time
Location: On-site (Copenhagen Office)
Shape Games is looking for an experienced Backend Developer to join our team and help build the backbone of our award-winning iGaming platform. You’ll work with technologies like Kotlin, Ktor, AWS, Postgres, Redis, and Cloudfront to craft robust, scalable, and secure systems powering mobile and web apps used worldwide.
About the role
As a Backend Developer, you’ll be responsible for designing, implementing, and maintaining the server-side logic of our digital products. Your focus will be on building efficient APIs, ensuring performance, and collaborating closely with frontend teams and product owners to deliver high-quality user experiences.
Tech Stack
- Languages: Kotlin (or Java)
- Frameworks: Ktor
- Databases: PostgreSQL, Redis
- Infrastructure: AWS (EC2, RDS, Cloudfront, etc.)
Key responsibilities
Design, build, and maintain backend services using Kotlin and Ktor
Develop and integrate APIs for seamless communication across systems
Optimize performance and scalability through effective caching and service architecture
Contribute to system design to support modular, microservice-based infrastructure
Collaborate with frontend developers and DevOps to ensure end-to-end feature delivery
Ensure code quality through best practices, reviews, and test coverage
Monitor backend reliability and debug issues in production
Stay current with backend development trends and AWS innovations

What we’re looking for
5+ years of experience in backend development
Strong proficiency in Kotlin or Java
Hands-on experience with AWS infrastructure and cloud-native applications
Solid understanding of caching mechanisms and performance optimization (e.g., Redis, CDN)
Experience with microservices architecture and scalable system design
Familiarity with relational databases (PostgreSQL preferred)
Excellent communication skills and team collaboration mindset
Clear, structured, and timely communication
Adaptability to fast-changing circumstances and requirements
Strong collaboration and teamwork mindset

Location
On-site (Copenhagen office).
Why join Shape Games?
Work with cutting-edge technologies in a high-scale environment
Be part of a talented, diverse, and supportive engineering team
Flexible remote work culture
Competitive salary
Relocation package
Opportunity to influence the architecture and future of a fast-growing platform

Ready to shape the future of iGaming?
Apply now!
Shape Games is an equal opportunity employer and encourages all qualified candidates to apply, regardless of age, gender, religion, ethnicity, disability, or sexual orientation. We are committed to fostering an inclusive and diverse workplace in accordance with Danish and EU equality standards.
Kambi's ongoing commitment to Diversity and Inclusion in the workplace
If you require any reasonable adjustment during the recruitment process, please notify your recruiter, who will assist you however they can. Diversity and inclusion is at the heart of who we are and who we aim to be. While we are proud of the positive and inclusive company culture we have created, we know we can do so much more. Kambi constantly evolves its Diversity and Inclusion strategy to ensure it becomes an even more inclusive and positive place to work, with the core management team reaffirming its commitment to delivering on employee feedback.
Creating an inclusive environment
We believe Kambi's greatest strength is the collective talent of our employees. Kambi is committed to ensuring we create an inclusive work environment where everyone can feel valued, thrive and achieve their potential, regardless of who they are or what their background is. We know that it is only by having a balance of different voices, values and opinions that Kambi is able to be the market leader it is today.
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