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VirtusLab Logo VirtusLab · IT - Software Development

Build System Engineer

Poland, Kielce B2B 21000.00 - 27000.00 PLN / Month · Job Posted January 17, 2026
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Job Description

We are #VLteam – tech enthusiasts constantly striving for growth. The team is our foundation, that’s why we care the most about the friendly atmosphere, a lot of self-development opportunities and good working conditions. Trust and autonomy are two essential qualities that drive our performance. We simply believe in the idea of ​​“measuring outcomes, not hours”. Join us & see for yourself! This role is focused on a mixture of consult and dev-rel work around Bazel. This role usually is connected with part-time work within other projects related to Bazel. Tech stack: Bazel, Starlark, Python. Challenges: This position requires exceptional skills in multitasking. It requires a willingness to public speaking, write articles, and activity within Social Media or discussion forums (e.g., Bazel Slack). It requires a lot of initiative and creativity. Team: 2 developer advocate/experts.

Job Responsibility

  • doing Bazel migration
  • promoting Bazel and our expertise through conferences, meetups, blog posts, and Social Media
  • developing open source and internal solutions focused on Bazel
  • pre-sales and consultancy work
  • training and mentoring developers on Bazel

Requirements

  • 5+ years of experience in backend, devops, or platform engineering
  • Experience in developing solutions around building tools, maintaining CI/CD, and other aspects of software development lifecycle
  • Practical knowledge of Bazel or at least one other build tool
  • Candidate should know JVM ecosystem
  • Communication skills and a pragmatic approach to problem-solving
  • Ability to work as a part of a team
  • Pro-active approach to problem-solving, without hesitation in reaching out for help
  • We don’t require specific technologies (other then JVM tools/languages), but we value interest in build tools and developer productivity
  • Being self-driven and self-managing tasks
  • Java/JVM expert
  • Gradle/Maven/CMake/sbt (any build tool other than Bazel) advanced
  • Communication skills advanced
  • English advanced

Nice to have

  • Bazel nice to have
  • Other ecosystem (Rust/Golang/NPM) nice to have
  • IDE internals / plugins (VS Code, IntelliJ, CLion and other JetBrains' IDEs) nice to have
  • Open Source projects ( contributing, patching, forking) nice to have

What we offer

  • Flexible hybrid work model
  • Home office reimbursement
  • Language lessons
  • MyBenefit points
  • Private healthcare
  • Training Package
  • Virtusity / in-house training
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