Backend Engineer - Gaming

Position at LeoVegas Group ABOUT THE ROLE Join our team as a Senior Software Engineer and play a crucial role in driving our organisation's growth through the development of outstanding products. LeoVegas Group is building something special – a world-class team dedicated to creating the best Sportsbook platform in the market through cutting-edge technology and innovative gaming experiences. This is a dynamic team that will be working on creating new cool features and integrating them into LeoVegas platforms. We’re seeking a dynamic individual who can deliver state-of-the-art code while prioritising performance and scalability. We are recruiting for our Tiger Sportsbook Team! In Sportsbook we work in a high-volume, real-time environment, integrating data feeds with our modern trading system and transactional betting platform (UI/Backend). Your contributions will cover maintaining/expanding our current Betting/Trading services as well as building new services and capabilities for our users. As a key member of our team, you’ll collaborate effectively while also demonstrating initiative and a passion for sharing innovative ideas. YOU WILL BE RESPONSIBLE FOR: ● Taking ownership, problem-solving and collaborating with other teams. ● Designing and implementing from idea to production. ● Building for scale, availability, performance and security across the stack. ● Working with product managers, architects, QA engineers and other developers in a highly collaborative agile environment. ● Integrating new products and building internal services to support our ecosystem. ● Conducting code reviews and mentoring team members. ● Ensuring services are production-ready, observable, and maintainable through monitoring, alerting, and on-call participation. OUR SUCCESSFUL CANDIDATE WILL HAVE: ESSENTIAL SKILLS: ● 6+ Years of software development experience with Java, Spring Boot and Event-Driven Architectures. ● Experience designing microservices, K8s, containerization (Docker) and Kafka messaging systems. ● Knowledge of relational and NoSQL databases and caching. ● Implementing resilience patterns (e.g., retries, circuit breakers, graceful degradation). ● Designing and maintaining monitoring dashboards (e.g., metrics, logs, traces) and alerts to proactively detect issues. ● Hands-on experience developing highly scalable RESTful end-to-end microservices. NICE TO HAVES: ● Familiarity with Reactive Programming (e.g. RxJava) and Vert.x would be a big plus. ● Experience in platforms like AWS and Google Cloud Platform. ● Online gaming and gambling experience WHO WE ARE At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of over 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 19 offices worldwide. BENEFITS Hybrid work policy 4 weeks of Workation (T&C apply) 30 annual vacation days Occupational Pension 5,000 SEK wellness contribution annually Parental Leave Top-Up Possibility to enroll in a private health care insurance for both you and your partner 1,500 SEK equipment allowance Benify - benefits portal with many offers and discounts We offer a relocation package with accommodation and flights. JOIN US! In our pride, we empower our teammates to find their roar and run with their wildest ideas. We don’t wait for things to happen; we pounce and make it happen! Would you be a good fit for the Leo Pride - give us a roar! **As our company working language is English, we’d like to see your CV in English, please**

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. About the Role We’re looking for a Senior Software Engineer to join Kambi. This is not a standard backend role. You will work on business-critical systems where: Performance matters. Reliability is essential. Correctness is critical. We’re looking for someone who takes ownership, makes sound technical decisions, and contributes effectively in a complex, high-impact environment. What You’ll Do Design, build, and maintain high-throughput backend services in Java Work with low-latency, distributed systems Solve real production challenges related to performance, failures, and scaling Take ownership of systems and features end-to-end Collaborate closely with engineers, product, and stakeholders Contribute to architectural decisions and technical direction Continuously improve system reliability, observability, and maintainability What You Bring Strong Java & Backend Expertise Solid understanding of: Concurrency and multithreading JVM behavior (memory, garbage collection, performance) Core Java fundamentals Experience building backend services using frameworks such as Spring Boot Experience Working with Production Systems Hands-on experience debugging and resolving issues in live systems Familiarity with observability practices (logging, metrics, tracing) Experience identifying and addressing performance bottlenecks Understanding how systems behave under real-world load Distributed Systems & System Design Experience working with microservices and/or event-driven architectures Understanding of: Scalability and fault tolerance Backpressure and system resilience Trade-offs such as consistency vs availability Experience with messaging systems (e.g. Kafka) is highly valued Ownership & Engineering Judgment Take responsibility beyond individual tasks and drive work forward Operate effectively in environments with some ambiguity Proactively identify issues and drive improvements Make sound technical decisions and clearly communicate trade-offs Balance simplicity, performance, and long-term maintainability Understand the operational and maintenance impact of technical choices This Role May Not Be the Right Fit If Your experience is primarily limited to simple CRUD-based applications You have limited exposure to debugging or operating production systems You are most comfortable working in environments where requirements are fully defined upfront and change is limited You are not comfortable taking ownership of systems end-to-end Tech Context Java (primary) Spring Boot Distributed systems and messaging (e.g. Kafka) Cloud-based infrastructure Containerized environments Application Please share your CV in English. Along with your CV, to help us better understand your experience, kindly include a brief description of a complex production issue you personally debugged, how you approached it, and the outcome. #wearekambi