SW Build System Expert

Job Description

We are seeking a highly analytical and forward-thinking Build System Expert to architect, optimize, and scale our build systems & CI/CD pipelines.

In this role, you will bridge the gap between complex embedded/native compilation and cutting-edge, cloud infrastructure. You will be responsible for managing a massive, multi-language codebase (primarily C/C++ and Python), serving as our internal expert on compiler toolchains (GCC and Clang). If you possess world-class diagnostic skills, deep knowledge of compiler optimization flags, and compilation bottlenecks, and live to shave minutes off build times, we want to hear from you

Key Responsibilities

HOW YOU WILL CONTRIBUTE AND WHAT YOU WILL LEARN

• Build Architecture & Optimization: Design, maintain, and optimize scalable build systems using Bazel and Starlark, ensuring ultra-fast, reproducible builds via local caching and bazel-remote.
• Compiler Toolchain Management: Configure, tune, and maintain custom GCC and Clang toolchains. Diagnose complex compilation and linking issues.
• Legacy & Multi-Platform Integration: Support and migrate complex, multi-language legacy build environments utilizing Make, Buildroot, Maven, and Gradle.
• Infrastructure & Orchestration: Maintain and scale cloud-native CI/CD infrastructure deployed across Kubernetes (K8s), OpenStack and Bare Metal environments.
• Dual Version Control Management: Manage and bridge workflows between distributed version control systems, primarily GitLab and Mercurial.
• Automation & Tooling: Write robust, maintainable scripts and tooling in Python, Bash, and Perl to automate operational tasks and improve developer efficiency.
• Core Services Support: Configure and optimize proxies and web servers using Nginx to ensure high availability for internal development services.
• Next-Gen AI Development: Champion and integrate AI-agent-based development workflows (including Anthropic Claude, Cursor, and GitHub Copilot) to accelerate internal engineering velocity and automate code analysis

Key Skills And Experience

Must Have

• In-Depth GCC & Clang Knowledge: Thorough understanding of the compilation lifecycle (preprocessing, parsing, optimization, and linking). Experience with compiler-specific optimization flags, diagnostic flags, and cross-compilation targets.
• Advanced Diagnostics: Proficient in troubleshooting binary/link-time issues using tools like ld, gold, lld, nm, objdump, and readelf. Experience using sanitizers (ASan, TSan, MSan) to root-cause build and runtime anomalies.
• Expert-level Build Systems: Proficient with Bazel (including writing custom toolchain definitions and rules in Starlark) and managing bazel-remote cache environments.
• Multi-Language Compilation: Proven experience managing builds for large-scale C/C++, Python, Go and Perl applications, alongside familiarity with Maven and Gradle.
• Embedded Systems: Hands-on experience with Make and Buildroot configurations for generating root filesystems and cross-compiler toolchains.
• Orchestration & Cloud: Strong hands-on experience with Kubernetes (K8s) and OpenStack.
• CI/CD Platforms: Deep familiarity with both Jenkins and GitLab CI/CD pipelines.
• Version Control: Fluent in both Git/GitLab and Mercurial workflows.
• Scripting: Advanced proficiency in Python, Bash, and Perl.
• Web Servers: Strong working knowledge of Nginx configuration and traffic management.

Nice to have

• DevOps Mindset: Deep understanding of modern DevOps methodologies, infrastructure-as-code, and continuous integration paradigms.
• AI-Assisted Engineering: Hands-on experience leveraging or deploying AI tools and agents (Claude, Cursor, Copilot) within an enterprise development lifecycle.

Excellent Analytical Skills: A rigorous, data-driven approach to profiling build performance.

About Us

Advancing connectivity to secure a brighter world.

Nokia is a global leader in connectivity for the AI era. With expertise across fixed, mobile and transport networks, powered by the innovation of Nokia Bell Labs, we’re advancing connectivity to secure a brighter world.

Learn more about life at Nokia .

Our recruitment process

We act inclusively and respect the uniqueness of people. Our employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law. We are committed to a culture of inclusion built upon our core value of respect.

If you’re interested in this role but don’t meet every listed requirement, we still encourage you to apply. Unique backgrounds, perspectives, and experiences enrich our teams, and you may be just the right candidate for this or another opportunity.

The length of the recruitment process may vary depending on the specific role's requirements. We strive to ensure a smooth and inclusive experience for all candidates. Discover more about the recruitment process at Nokia .

About The Team

Some of our benefits in Greece :

• On site, hybrid or remote work arrangements, based on the business requirements
• Life and medical insurance, plus an annual medical check-up program
• A minimum of 90 days of Maternity and Paternity Leave, with the option to return to work within a year following the birth or adoption of a child (based on eligibility)
• Group pension plan and incentive programs to support long-term financial security
• Ticket restaurant e-card
• Company bus transportation and company-provided mobile device with subscription
• Referral bonus for recommending qualified candidates
• Well-being programs to support your mental and physical health
• Personal Support Service 24/7 - a confidential support channel open to all Nokia Employees and their families in challenging situations
• Opportunities to engage with Nokia Employee Resource Groups (NERGs), as well as access to mentors, coaches, and Employee Growth Solutions
• A learning culture that promotes continuous personal and professional growth – for your role and beyond