Senior Server Engineer

November 9

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High 5 Games

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Gaming • Gambling • B2B

High 5 Games is a developer and supplier of casino slot games and related platform services. The company creates and distributes dozens of online and land-based slot titles (over 150), offers progressive jackpots and in-game promotion tools, and provides a casino platform and game-studio solutions for operators and partners. High 5 Games serves regulated casinos and online operators with both B2B integrations and player-facing social/real-money experiences.

51 - 200 employees

Founded 1995

🎮 Gaming

🎲 Gambling

🤝 B2B

📋 Description

• Design, develop, and optimize highly scalable Java-based backend systems and microservices • Build and maintain real-time, high-throughput architectures using Spring Boot (2.5+), REST APIs, Tomcat, Kubernetes, and the Docker ecosystem • Design and deliver high-volume, highly available back-end infrastructures (20K+ mps) leveraging Kafka and Hazelcast • Apply distributed system concepts such as leadership, consensus, partitioning, and replication to ensure scalability and resilience • Conduct performance analysis and optimization across databases, application code, and infrastructure layers • Develop comprehensive testing strategies (TDD, BDD) and ensure code reliability through robust unit, integration, and system tests • Identify, diagnose, and resolve complex production issues with strong debugging and troubleshooting skills • Work with both SQL and NoSQL databases, particularly Cassandra and MySQL • Utilize cloud-based big data tools for data processing and analysis • Implement real-time stream analysis and contribute to machine learning (ML) and AI modeling initiatives where applicable • Build operationally mature systems that are scalable, secure, and well-instrumented • Use tools like Gradle, Jenkins, Nexus, GCP, Kubernetes, Docker, and Datadog for CI/CD, monitoring, and deployment • Apply SDLC best practices and ensure code quality, documentation, and smooth delivery pipelines • Collaborate using Jira, Confluence, and other tools to maintain alignment across teams.

🎯 Requirements

• 6+ years of hands-on experience in Java server-side development, ideally with Java 11/17+ • Proven background in building and scaling real-time, high-availability back-end systems (Telcos, Trading, AdTech, or similar) • Strong expertise in microservices architecture, REST API design, and Spring Boot • Deep understanding of distributed systems, security concepts, and enterprise architecture • Experience in Kafka, Hazelcast, Cassandra, and MySQL • Familiarity with GCP, Kubernetes, Docker, and monitoring tools like Datadog or Stackdriver • Exposure to machine learning, AI modeling, or streaming data is a plus • Excellent communication, collaboration, and problem-solving skills • A passion for staying up-to-date with the latest in server, cloud, and Java technologies.

🏖️ Benefits

• Health insurance • Retirement plans • Paid time off • Flexible work arrangements • Professional development