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Tooling Engineer – Clinical Data Team Internal Developer Tools | CLI | Python | Shell For an international organization operating in Clinical Data Management , we are looking for a Tooling Engineer to join a small, technically driven team building internal developer tools . This role is about improving developers’ daily work through well-designed scripts, libraries, and CLI utilities. You won’t be building customer-facing products. You’ll be building tools for the people who build everything else . Role Summary You will design, maintain, and evolve workstation-level tooling that supports clinical data processing workflows. Work split: ~ 50% maintenance and refactoring of existing tools ~ 50% greenfield development of new tools Occasionally, you may support light operational tasks (e.g. job scheduling or publishing outputs), but this is not an ops role . What You’ll Do Refactor and harden existing code (reliability, edge cases, legacy cleanup) Build new tools from team specifications: CLI utilities Python libraries Automation scripts Participate actively in code reviews — both giving and receiving feedback Communicate proactively: explain what you’ve built, share insights, keep the team aligned Work in a CLI-first environment Must Have Strong shell scripting skills (Bash, Zsh, or similar) Willingness to learn Nushell (or existing experience) Solid Python proficiency (data processing with Polars ) Experience refactoring and maintaining existing codebases Good working knowledge of Git (we also use Jujutsu) Cross-platform awareness (macOS & Windows) Ability to write clean, readable, well-commented code Fluent English (written and spoken) Nice to Have Functional programming mindset (immutability, composition, declarative patterns) Experience building internal developer tools Familiarity with chezmoi or similar configuration management tools Exposure to AI-assisted development (Copilot, ChatGPT, Claude) Ability to exit Vim without Googling Who You Are Autonomous but communicative — you own your work without disappearing Curious and adaptable — comfortable learning new tools and ecosystems Quality-oriented — you care about maintainability, not just “does it work” Pragmatic — you adapt best practices to context Collaborative — you treat code review as a conversation, not gatekeeping Working Conditions Location: Poland Work model: Hybrid — 3 days per week onsite (Warsaw office) Start date: ASAP Collaboration: daily standups, light weekly syncs, async-first communication Autonomy: high — you decide how to solve problems; the team decides what to prioritize Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: Follow us on LinkedIn: