ppiGaming / Sportsbook / Online Casino | Senior Java Backend | Kafka or Rabbit MQ | /p pHybrid in Madrid. /p pIdeally with experience in payments, iGaming/Gambling or FinTech (integrations and payments gateways) /p pMy client in the iGaming industry (online Casino and Sportbooks) is looking for a bSenior Java developer /b, to work hybird from Madrid (3 days in the office, 2 days remote). /p h3Role Overview /h3 pWe are looking for a bSenior Java developer /b to build and scale core platform services in a distributed, event-driven environment. The role focuses on designing reliable, high-performance systems, including APIs, asynchronous workflows, and distributed transactions. You will ensure system resilience, data integrity, and observability while contributing to testing, security, and CI/CD practices. Collaboration with engineering, DevOps, and compliance teams is key to shaping architecture and maintaining high standards across performance, scalability, and reliability. /p h3Skills Experience /h3 ul li8+ years of experience with Java, 5+ of experience with Spring,



Springboot and Microservices /li li1+ years of experience within the payments, iGaming or FinTech industry /li li1+ years of experience with platforms integrations and payments gateway. /li li2+ years of experience with Kafka or RabbitMQ. /li /ul h3Key Responsibilities /h3 ul liDevelop and maintain core backend services (identity, transactions, data integrity) within an event-driven architecture. /li liBuild reliable, asynchronous workflows and high-performance APIs with proper versioning and consistency guarantees. /li liImplement distributed transactions, concurrency controls, and resilience patterns to ensure system stability and correctness. /li liManage database evolution, security (auth/authz), testing, and observability across services. /li liContribute to internal tools, CI/CD, infrastructure, and leverage AI tools to enhance development efficiency. /li /ul /p #J-18808-Ljbffr

📌 Senior Software Engineer (Madrid)
🏢 Pentasia
📍 Madrid