Sr. Server Java Developer

1 week ago


London, Greater London, United Kingdom High 5 Games Full time

Senior Java Developer will be part of a team of top server engineers dedicated to developing the core of H5G games and product platform. The ideal candidate will play a crucial role in driving H5G to the forefront of social gaming by leveraging the latest Server side, Big Data, and AI technologies, such as highly scalable cloud infrastructure, stream analysis, and machine learning. They will actively contribute to the design and implementation of H5G Server Systems, Services, and Data Stores.

Technical Expertise

  • Extensive experience in Java server-side development, real-time SOA, and microservices architecture (6+ years)
  • Proficiency with REST API Concepts and Spring Boot 2.5+ Framework, Tomcat, K8s, Docker ecosystem
  • 5+ years of designing and delivering high-volume, highly available back-end infrastructures – Telcos / Trading / AdTech systems, etc. Thorough understanding of enterprise architecture patterns, UML
  • Preference for experience in Gaming or Equity trading server-side
  • Demonstrated track record in delivering systems at large scale (20K+ mps) using Kafka and Hazelcast
  • In-depth understanding of Distributed System Concepts: Leadership, Consensus, In-Sync Replicas, Partitioning
  • 6+ years of hands-on Java development, strong familiarity with Java 11/17+
  • Solid grasp of key security concepts and patterns
  • Comprehensive understanding of enterprise and mobile-facing systems architecture

Technical Expertise - Data Management

  • Proficiency in SQL and No-SQL DBs, particularly Cassandra and MySQL
  • Experience with cloud-based Big Data tools
  • Experience with Real-Time Stream Analysis. Familiarity with ML and AI modeling is advantageous

Systems Operational Maturity

  • Experience in building operationally mature, well-instrumented, highly scalable, highly available, and secure systems
  • Proficiency in Build Automation Tools: Gradle, Jenkins, Nexus, Docker Image Repositories
  • Experience with Google Cloud Platform, Kubernetes, Docker, DataDog, Stackdriver
  • Comprehensive knowledge of SDLC, Java development, and continuous integration best practices. Expertise in Jira and Confluence is beneficial

Education

  • BS in Computer Science, Engineering, or equivalent. MS in CS or Engineering is a plus


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