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Roman GrigoriadiRG

Roman Grigoriadi

Java software engineer

€600/day
Prague, CZ
15+ years

Average response time: 1 hour

About Roman

High-impact Java Engineer with 20+ years of experience specializing in core Java
technologies, cloud-native architecture, and high-performance distributed systems.
Contributor to Jakarta EE standards and reference implementations (JSONB, JAXB).
  • Czech

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Novartis
    Principal Software Engineer
    November 2023 - Today (2 years and 7 months)
    • • Architecture: Designed a high-throughput async processing API with a dynamic rule-based validation engine for global user/role management.
    • • Leadership: Directed technical design, code reviews, and implementation for core identity entities.
    • • DevOps: Automated deployment workflows by establishing end-to-end CI/CD pipelines in Azure DevOps.
  • Barclays
    Senior Software Engineer
    October 2022 - October 2023 (1 year)
    Trading Systems: Developed an asynchronous bond trading platform (Buy/Repo) integrated with Solace message queues.
    • • Optimization: Conducted deep-dive performance tuning to reduce system latency and resolved critical production bottlenecks. R&D: Prototyped rule engine integrations for complex trade validation.
  • Monster
    Senior Software Engineer
    February 2022 - November 2022 (9 months)
    Cloud Native: Developed reactive, containerized microservices for AWS Kubernetes (EKS).
    • • Security: Engineered client-level encryption for DynamoDB and implemented consistent event propagation using DynamoDB Streams.

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Skill set

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