April 11, 2026
Tooling Engineer
Mid • Hybrid
50 - 85 PLN
Warsaw, Poland
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.
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Hybrid
Krakow, Poland
🏢 Summary: Leadership role combining hands-on technical work with managing a global team of developers and support engineers, responsible for maintaining and developing internal applications in Angular and Python on GCP. The position involves code reviews, debugging production issues on Linux, translating business requirements into technical tasks, and ensuring system stability and timely delivery. 🗂️ Requirements: Experience in Python development, Experience in JavaScript and TypeScript, Experience with Angular, Proficiency with Linux and Bash, Knowledge of GCP cloud services, Experience with SQL or Firebase databases, Ability to perform code reviews, Experience debugging production systems, Fluent English for technical communication 📃 Skills: Python, JavaScript, TypeScript, Angular, Linux, Bash, GCP, SQL, Firebase, PowerBI, Looker 🏢 Description: Dla naszego klienta szukamy lidera, który ogarnia zarówno kod, jak i ludzi. Nie będziesz tylko przesuwać kafelków w Jirze – musisz wiedzieć, co siedzi w kodzie, żeby pomóc swojemu zespołowi (deweloperom i inżynierom wsparcia) rozwiązywać realne problemy. To rola dla kogoś, kto chce zarządzać, ale nie chce stracić kontaktu z technologią. Czym będziesz się zajmować? Liderowanie zespołowi: Zarządzasz globalną ekipą programistów i inżynierów. Robisz im Code Review, ustalasz grafiki, prowadzisz daily i dbasz, żeby każdy wiedział, co ma robić. Wsparcie techniczne: Gdy coś "puknie" w ważnej aplikacji wewnętrznej, Ty i Twój zespół musicie to naprawić. Debugujesz, sprawdzasz logi na Linuxie i pilnujesz, żeby wszystko działało stabilnie. Most między biznesem a IT: Rozmawiasz z klientem, zbierasz jego wymagania i tłumaczysz je zespołowi na konkretne zadania. Pilnujesz terminów i priorytetów. Technologie: Pilnujesz aplikacji postawionych na Angularze i Pythonie, które działają w chmurze Google (GCP). Do tego dochodzi nadzór nad danymi i raportami (np. w Power BI czy Lookerze). Czego od Ciebie wymagamy? Wiedzy technicznej: Znasz się na programowaniu (Python, JavaScript/TypeScript, Angular). Umiesz poruszać się w Linuxie (terminal, Bash). Rozumiesz chmurę (najlepiej GCP) i bazy danych (SQL/Firebase). Umiejętności miękkich: Musisz umieć dogadać się z każdym – od junior dewelopera po dyrektora po stronie klienta. Angielskiego: Na poziomie, który pozwoli Ci swobodnie zarządzać globalnym zespołem i rozmawiać z klientem. Mile widziane doświadczenie jako jako lider techniczny /PM/ Product Owner. Co dostaniesz w zamian? Prywatną opiekę medyczną i ubezpieczenie na życie. System kafeteryjny. Dostęp do certyfikacji i szkoleń. Pracę w innowacyjnym środowisku dla jednej z największych firm IT na świecie. Praca stacjonarna lub hybrydowa 3 dni w tygodniu z biura/ 2 z domu. Biuro w centrum Krakowa. __________________________________________________________________________ Co zyskasz dzięki aplikacji na ofertę Antal? Gdy Twoja aplikacja zostanie rozpatrzona pozytywnie (zostaniesz zaproszony/a do procesu), otrzymasz wsparcie Konsultanta/Konsultantki, który/a utrzyma z Tobą stały kontakt (mailowo lub telefonicznie), pomoże Ci przygotować się do rozmowy rekrutacyjnej z przyszłym pracodawcą oraz zatroszczy się o jakość procesu rekrutacyjnego, w którym aktualnie bierzesz udział. Kim jesteśmy? Jesteśmy liderem rekrutacji specjalistów i menedżerów oraz doradztwa w obszarze HR. Marka obecna jest w 35 krajach, w Polsce działa od 1996 roku. Przez ten czas zbudowaliśmy wiele karier kandydatów, dzięki elastycznemu i kompleksowemu podejściu do wszystkich rekrutacji. Antal tworzy ponad 130 profesjonalnych konsultantów ds. rekrutacji, którzy są oni nie tylko skutecznymi rekruterami, ale także wykwalifikowanymi doradcami, specjalizującymi się zarówno w zakresie wybranego sektora, jak i stanowiska.
Technology
New offer
Antal Sp. z o.o.
Performance Test Engineer/Lead (Cybersecurity)
Senior
Hybrid
Kraków, Poland
🏢 Summary: Senior technical leadership role focused on defining and leading enterprise-wide performance and non-functional testing strategy for cloud-native platforms. The role involves integrating performance testing into CI/CD pipelines, driving resilience and scalability testing, and mentoring engineering teams across a large-scale transformation programme. 🗂️ Requirements: Experience in enterprise Performance & Non-Functional Testing, Expertise in testing strategy and governance, Experience with cloud-native testing, Knowledge of GCP, Experience with performance testing tools, Performance analysis and optimisation skills, Experience with containerised and serverless architectures, Knowledge of Infrastructure-as-Code, Strong scripting or programming skills, Experience with database and messaging performance testing, API and integration testing experience, Agile delivery experience, Technical leadership skills 📃 Skills: GCP, JMeter, Gatling, LoadRunner, NeoLoad, Python, Java, Scala, Cypher, Neo4j, Pub/Sub, MQ, GitLab, Docker, Kubernetes, IAM, AppDynamics, Datadog, DevSecOps, SaaS, CI/CD, IaC, ETL 🏢 Description: Join a large-scale technology transformation programme and help shape the performance, resilience and scalability of modern cloud-native platforms. We're looking for an experienced Performance & Non-Functional Testing Lead to own the end-to-end non-functional testing capability across a complex enterprise environment. This is a senior technical leadership role combining strategy, hands-on expertise and programme-wide ownership. What you'll do You'll define and drive the Performance & Non-Functional Testing strategy, ensuring cloud-based services are scalable, resilient and production-ready. Working closely with Architects, Engineering, DevOps, Product and Scrum teams, you'll embed non-functional testing into the delivery lifecycle and champion engineering best practices. Key responsibilities include: - Defining the Performance & Non-Functional Testing strategy, roadmap and governance. - Leading testing across load, stress, volume, resilience, failover, high availability (HA), disaster recovery (DR) and operational readiness scenarios. - Owning tooling, environments, test planning, reporting and programme-wide quality metrics. - Analysing performance results, identifying bottlenecks and driving remediation. - Integrating Performance Testing into CI/CD pipelines and supporting shift-left delivery practices. - Mentoring Performance Test Engineers and providing technical leadership across the programme. What you'll bring You'll have proven experience delivering Performance & Non-Functional Testing across complex enterprise environments, with expertise in: - Enterprise Performance & Non-Functional Testing strategy and governance. - Cloud-native testing, ideally within Google Cloud Platform (GCP). - Performance testing tools such as JMeter, Gatling, LoadRunner or NeoLoad. - Performance analysis, profiling, monitoring and optimisation. - Containerised and serverless architectures, Infrastructure-as-Code (IaC) and observability. - Strong scripting or programming skills (Python, Java, Scala or Cypher). - Database and messaging performance, including Neo4j/GDBMS, Pub/Sub and MQ. - API, batch/ETL and integration testing. - Agile delivery, stakeholder management and technical leadership. Nice to have - Experience with GitLab CI/CD, Docker, Kubernetes, IAM platforms, AppDynamics, Datadog, GCP Monitoring, DevSecOps, SaaS testing, and establishing enterprise-wide Performance Testing standards and governance. If you're passionate about performance engineering, cloud technologies and driving quality across complex distributed systems, we'd love to hear from you.
Technology
Antal Sp. z o.o.
Fullstack Developer Java/React
Senior
Hybrid
Krakow, Poland
150 - 200 PLN/hr
🏢 Summary: Backend engineering role focused on designing, developing, and deploying scalable microservices-based applications in a continuous delivery environment. The position involves building production-ready systems, contributing to architecture decisions, and ensuring high performance and maintainability. The role requires close collaboration within globally distributed teams to deliver high-quality digital solutions. 🗂️ Requirements: Proven experience in backend software engineering, Hands-on experience with microservices architecture, Experience delivering production-ready applications, Experience with continuous delivery and frequent releases, Experience building and maintaining RESTful APIs, Strong experience with PostgreSQL including schema design and optimization 📃 Skills: Backend, Microservices, REST, PostgreSQL, SQL, ContinuousDelivery, APIs 🏢 Description: Location: Kraków Work mode: hybrid with 6-8 days/month from the office Salary: up to 200 PLN/h + VAT on B2B contract About the Team: You will join a globally distributed engineering team focused on building scalable, high-quality digital solutions using modern technologies and microservices architecture. The team emphasizes collaboration, continuous delivery, engineering excellence, and innovation, working closely with stakeholders across regions to deliver impactful business outcomes. Key Responsibilities: Design, develop, and deploy high-quality, production-ready code within a microservices-based architecture. Contribute to system architecture and technical design decisions, ensuring scalability, performance, and maintainability. Maintain awareness of business objectives alongside engineering and non-functional requirements to support product growth. Promote and uphold strong engineering culture, including best practices, code quality, and continuous improvement. Collaborate closely with globally distributed teams, coordinating across multiple regions and time zones. Proactively identify and remove delivery impediments, manage risks, and communicate issues to program stakeholders. Analyze development and delivery processes to identify inefficiencies and implement innovative, automated solutions. Required Experience & Skills: Strong background in software engineering with proven expertise in designing, developing, and deploying backend applications. Hands-on experience working with microservice architectures and delivering production-ready solutions. Demonstrated ability to deliver frequent, high-quality releases in a continuous delivery environment. Experience building and maintaining RESTful APIs in production systems. Solid experience working with PostgreSQL databases, including schema design and optimization. Preferred Qualifications: Proficiency in Java, ideally with recent experience using modern versions. Understanding of containerization and orchestration technologies such as Docker and Kubernetes, as well as cloud platforms (preferably GCP). Experience developing modern frontend applications using ReactJS. Previous experience working in the financial services sector, particularly in banking environments. This role is ideal for a proactive and delivery-focused engineer who thrives in a collaborative, fast-paced environment and is passionate about building scalable, modern applications. 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: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland