Within the Sports domain, we work in a high-volume, real-time environment where speed, correctness, scalability and reliability are critical, building the services that transform incoming sports, trading and pricing data into experiences used by millions of customers.We are looking for a highly experienced Staff Backend Engineer to help lead the design, development and evolution of these distributed systems. Drive simplification of complex systems while holding a high bar for performance, reliability and code quality.Identify scalability, resiliency and operational risks before they reach production, and lead root cause analysis when incidents occur.Improve observability, monitoring and operational readiness, and drive down technical debt across the platform.Promote best practices around event-driven and reactive architectures, performance optimisation, testing, automation and CI/CD.WHAT WE'RE LOOKING FORESSENTIAL SKILLSProven experience designing, building and operating distributed systems at scale,



owning complex backend systems end-to-end in production.Strong backend expertise in Java (preferably 21+), with a solid understanding of JVM internals, concurrency and multithreading.Hands-on experience with Reactive Programming and non-blocking systems using Spring Boot and/or Vert.x.Hands-on experience with Apache Kafka and event-driven architectures; familiarity with streaming and messaging technologies such as Redis or NATS.Experience with Redis for caching and low-latency data access, and with SQL and NoSQL databases (e.g. PostgreSQL, MariaDB, MongoDB).Experience with observability and monitoring platforms such as Datadog, Grafana or Kibana, and with debugging complex production incidents.NICE TO HAVEExperience with Kubernetes, AWS and/or GCP, and cloud-native architecture patterns.Experience with OpenSearch and/or Elasticsearch for search, analytics and operational troubleshooting.Experience within sports betting, gaming or other real-time, data-intensive domains.

📌 Staff Backend Engineer (Andalucía)
🏢 LeoVegas
📍 Andalucía