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Java / Kotlin Tooling Engineer (Senior)

Java / Kotlin Tooling Engineer (Senior)
B2B21 000 - 27 000 PLN NET
LOCATION + Remote Poland: Kielce, Kraków, Wrocław
Apply now

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!

About the role

Java Advanced
Bazel or Gradle/ Maven / CMake Advanced
English Advanced
NET Build Tools Regular
Kotlin Advanced
Communication skills Advanced
Spring Framework Regular
Node.js Regular
View available projects
Project
CityBreak
Project scope
We are supporting the Build Tools Integration team in expanding CI/CD capabilities by integrating and executing various build tools such as Maven, Gradle, MSBuild, and NPM, as well as external tools like Unity and Unreal. The work focuses on enabling seamless test reporting, issue analysis, and custom build pipeline recipes for easy use within integrated developer tools.
Tech stack
Java, Kotlin, Spring Framework, Maven, Gradle, .NET, NodeJS
Challenges
Develop and maintain deep integrations with diverse build systems, ensure accurate diagnostics and performance insights, and enhance user-facing automation features for complex CI/CD pipelines.
Team
Currently, this is a two-person project on our side, carried out in close collaboration with the client’s engineering team.
Project
Tool-augumented Java Migration
Project scope
We will be responsible for migrating and modernising the code base of one of the world’s largest data companies (from the modern batch, not “legacy” one). The work is split into two phases: Runtime migration – enabling the legacy version of the application to run on newer JDK releases. Full modernisation – upgrading the application from JDK 8 to JDK 17 and beyond. Our aim isn’t to do everything by hand - we want to harness modern tooling. The project gives us a great deal of freedom, so we can use any available tools, including LLMs (provided we maintain strict compliance standards), Copilot for Java, and Amazon Q. It’s a quite unique chance to experiment with the toolset that’s been making headlines—on something more substantial than a pet project
Challenges
Working with a truly extensive codebase in a tech-first company, which means being exposed to various concepts, while also needing to track non-functional requirements such as performance or compliance
Tech stack
Java, OpenRewrite, Renovate, GenAI (decision power on picking your own stack)
Team
A self-contained team of two software engineers from VirtusLab working in a scope-based model

What we expect in general

  • Willingness to work with a variety of build tools

  • Familiarity with (or eagerness to learn) tools such as MSBuild, Maven, Gradle, and others

  • Ability to integrate diverse tools within the JVM ecosystem (Java, Kotlin, Spring Framework)

  • 3+ years of experience in CI/CD, build tooling, or JVM-based backend development

  • Strong skills in Java or Kotlin, with a readiness to explore new technologies

  • Strategic thinking, self-organization, and clear communication

  • Proficiency in English, both written and spoken

Don’t worry if you don’t meet all the requirements. What matters most is your passion and willingness to develop. Moreover, B2B does not have to be the only form of cooperation. Apply and find out!

A few perks of being with us

Building tech community
Building tech community
Flexible hybrid work model
Flexible hybrid work model
Home office reimbursement
Home office reimbursement
Language lessons
Language lessons
MyBenefit points
MyBenefit points
Private healthcare
Private healthcare
Training Package
Training Package
Virtusity / in-house training
Virtusity / in-house training
And a lot more!

Apply now

Java / Kotlin Tooling Engineer (Senior)

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Current recruitment process: For the purpose of recruitment, I hereby give consent as per art. 6.1.a of the GDPR to processing of my personal data (other than that listed in art. 22 [1] § 1 Labour Code) by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at 23 Zofii Nałkowskiej Street, Rzeszów, 35-211. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that my personal data will be kept for the duration of the recruitment process and as regards any potential claims, for the period of 36 months maximum, and that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any time, but this withdrawal does not make the previous processing illegal*.(Required)*

Current recruitment process: For the purpose of recruitment, I hereby give consent as per art. 6.1.a of the GDPR to processing of my personal data (other than that listed in art. 22 [1] § 1 Labour Code) by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at 23 Zofii Nałkowskiej Street, Rzeszów, 35-211. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that my personal data will be kept for the duration of the recruitment process and as regards any potential claims, for the period of 36 months maximum, and that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any time, but this withdrawal does not make the previous processing illegal*.

(Required)
Future recruitment processes: I hereby give consent as per art. 6.1.a of the GDPR to the processing of my personal data by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at 23 Zofii Nałkowskiej Street, Rzeszów, 35-211, in order to use this data in future recruitment processes. I hereby agree to possible storage of my personal data for this purpose in Virtus Lab’s database for a period of 36 months maximum. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any point, but this does not make the previous processing illegal*.

Future recruitment processes: I hereby give consent as per art. 6.1.a of the GDPR to the processing of my personal data by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at 23 Zofii Nałkowskiej Street, Rzeszów, 35-211, in order to use this data in future recruitment processes. I hereby agree to possible storage of my personal data for this purpose in Virtus Lab’s database for a period of 36 months maximum. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any point, but this does not make the previous processing illegal*.

Karolina Buraś
Coordinated by
Karolina Buraś
Senior IT Talent Acquisition Specialist
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Java / Kotlin Tooling Engineer (Senior)
B2B21 000 - 27 000 PLN NET
LOCATION + Remote Poland: Kielce, Kraków, Wrocław
Apply now
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