radeksvanda.cz

Kotlin, Spring Boot & AWS.
19 years. Now with AI.

// Still compiles on the first try. (It does not. Claude's doesn't either.)

  • 19yrs JVM
  • 7yrs AWS
  • ∞agents run

// what I do

  • Architecture

    Service boundaries, C4 and contract-first APIs. The boxes-and-arrows part, then the code that follows them.

  • Data pipelines

    Batch and real-time ingestion from third parties who swear their data is clean.

  • AWS, as code

    ECS, Lambda, Step Functions. Terraform and CDK, because click-ops doesn't have a git log.

  • AI-assisted engineering

    Claude Code daily: custom skills, hooks and multi-repo agent orchestration.

// git log --career

  1. 2025 –
    Oddin.gg · Senior Backend Engineer

    The esports portal rdy.gg. The team's only AWS architect: real-time feeds, GraphQL, Terraform and CDK.

  2. 2019 – 2025
    Giacom · Senior Developer / Team Lead

    Telco billing on AWS. Led teams of 2–5 and cut one system's AWS bill by 75 %.

  3. 2018 – 2019
    Tieto · Senior Software Developer

    An MVP of a Nordic government-agency system in eight months.

  4. 2015 – 2017
    Simplity.eu · Senior Java Developer / Team Lead

    Led six developers and brought in CI and mandatory code review.

  5. 2007 – 2014
    Zajezdy.cz · Java Developer

    Imported offers from about 200 tour operators. The JVM story starts here.

  6. 2003 – 2007
    Webnode · PHP & servers

    The prequel. We don't talk about the PHP.

// full diff → LinkedIn