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Build System Engineer (Senior)

Build System Engineer (Senior)
B2B140 - 170 PLN NET PER HOUR
LOCATION + Remote Poland: Kielce, Kraków, Wrocław
Apply now

VirtusLab is a leading European software consulting and engineering company. Our mission is to craft clean code and practical solutions with precision and purpose. We foster a dynamic culture rooted in strong engineering, a sense of ownership, and transparency, empowering professionals to make a substantial impact in the software industry.

About the role

Java/JVM Expert
Gradle/Maven/CMake/sbt (any build tool other than Bazel) Advanced
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
Communication skills Advanced
English Advanced
Open Source projects ( contributing, patching, forking) Nice to have
View available projects
Project
Bazel champion
Project scope

The project focuses on delivering a blend of consultancy and Developer Relations (DevRel) expertise centered around Bazel. Deliverables encompass: – Executing smooth Bazel migrations – Promoting Bazel ecosystems and engineering expertise through technical conferences, meetups, blog posts, and social media channels – Developing high-quality open-source and internal solutions tailored to Bazel – Supporting pre-sales activities and strategic technical consultancy – Delivering training sessions and mentoring development teams on Bazel best practices

This collaboration may also involve flexible engagement in parallel Bazel-related projects.

Tech stack

Bazel, Starlark, C++

Project Challenges

The engagement involves high multitasking capabilities, delivering public presentations, authoring technical articles, and maintaining active engagement within developer communities (e.g., Bazel Slack). It requires driving technical initiatives and applying creative problem-solving approaches.

Team

An elite engineering squad consisting of 2 Developer Advocates / Bazel Experts.

Project
Bazel Flow
Project scope

The project involves collaboration with a leading vendor of Caching and Remote Build Execution (RBE) solutions for Bazel and other build tools, delivering professional services related to Bazel and build automation. The scope of cooperation includes active involvement in open-source and research initiatives, exploring topics such as alternative rules for TypeScript and Gazelle-like solutions for C++. Continuous skill development and upskilling in Bazel technologies are integral to this cooperation.

Tech Stack

Bazel, Starlark, Golang, C++, Typescript and more

Challenges

– Conducting R&D around various tooling within the Bazel ecosystem
– Solving complex technical challenges across a frequently changing multi-technology stack, requiring high flexibility
– Integrating with customers and delivering world-class engineering services

Team

Currently a team of 2 consultants, expanding to 3+ cooperators, interfacing with a Project Manager for alignment. The engagement requires smooth cooperation with the Professional Services, Customer Success, and Development teams from the partner’s side, with team members distributed across the EU and the USA.

Open positions in this project
  • Bazel Engineer (Expert)
  • Build System Engineer (Senior)
  • Build System Engineer (Regular)

Core Scope of Expertise & Requirements

    • 5+ years of commercial experience in backend, DevOps, or platform engineering.

    • Proven track record in developing solutions centered around building tools, maintaining robust CI/CD pipelines, and optimizing the software development lifecycle.

    • Practical knowledge of Bazel or at least one other major build tool.

    • Deep understanding of the JVM ecosystem and related tooling/languages.

    • Strong communication skills combined with a pragmatic, results-oriented approach to problem-solving.

    • Seamless collaboration within a cross-functional, agile project environment.

    • Proactive problem-solving and efficient communication within the project ecosystem to ensure smooth delivery.

    • Flexibility regarding specific technologies (beyond JVM tools), with high value placed on a strong interest in build tools and maximizing developer productivity.

    • High autonomy in task execution, self-management, and independent delivery driving.

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
Access to the above perks is optional and completely voluntary for B2B contractors

Apply now

Build System 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 Szlak 49 Street, 31-153 Cracow. 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 Szlak 49 Street, 31-153 Cracow. 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 Szlak 49 Street, 31-153 Cracow, 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 Szlak 49 Street, 31-153 Cracow, 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*.

Sylwia Gracz
Coordinated by
Sylwia Gracz
IT Talent Acquisition Specialist
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Build System Engineer (Senior)
B2B140 - 170 PLN NET PER HOUR
LOCATION + Remote Poland: Kielce, Kraków, Wrocław
Apply now
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