Senior Software Engineer (Java, with German) w Poznań, Polska

Expected, Java, Spring Framework, Hibernate, Maven, Git, Kubernetes, JUnit

Optional, Mockito

Operating system, Linux

About the project, Your role, In this role, you will develop and maintain Java based applications that directly support critical business processes, particularly in public services. You will design new features, modernize existing systems, and integrate components deployed in Kubernetes based environments, ensuring they meet performance, reliability, and regulatory requirements. You will work closely with architects, product teams, and domain experts to translate business needs into effective technical solutions. You can expect real influence on how systems evolve, deep exposure to client operations, and the option to use on prem AI coding tools where they support the team in working more efficiently. In your daily work, you will also use tools that support development, including AI, wherever they help streamline engineering tasks.

Your responsibilities, Designing, developing and implementing backend applications using Java and modern JVM technologies., Creating solutions based on good engineering practices (Clean Code, SOLID, TDD, DDD)., Integrating applications with components deployed in Kubernetes environments., Maintaining and improving CI/CD pipelines (e.g., Jenkins, GitLab CI)., Enabling AI assisted engineering (e.g., GitHub Copilot); run code reviews for quality, security and prompt patterns., Working in agile, international teams and contributing to shared best practices., Participating in architecture design and code reviews., Supporting less experienced engineers and sharing knowledge within the team.

Technical degree and solid foundations in software engineering., Minimum 5 years of experience working with Java/JVM based technologies., Experience with Spring, Hibernate, Maven, Git, Kubernetes and Angular or React, Ability to write unit tests (JUnit, Mockito) and work with microservice oriented architectures., Experience with relational (MS SQL/Oracle) or non relational (Redis/MongoDB) databases., Practical experience with CI/CD and version control systems., Communicative English and German (min. B2)., Hands-on experience in AI / GenAI — including practical use of LLMs, RAG patterns, and agentic workflows in production or near-production environments, Nice to have: experience in tech lead role.

What we offer, Practical benefits: private medical care with Medicover with additional packages (e.g., dental, senior care, oncology) available on preferential terms, life insurance and 40+ options on our NAIS benefit platform, including Netflix, Spotify or Sports card., Access to over 70 training tracks with certification opportunities (e.g., GenAI, Architects, Google) on our NEXT platform. Dive into a world of knowledge with free access to Education First languages platform, TED Talks and Udemy Business materials and trainings., Enjoy hybrid working model that fits your life - after completing onboarding, connect work from a modern office with ergonomic work from home, thanks to home office package (including laptop, monitor, and chair). Ask your recruiter about the details., Community Hub that will allow you to choose from over 20 professional communities that gather people interested in, among others: Salesforce, Java, Could, IoT, Agile, AI.

Benefits, private medical care, sharing the costs of foreign language classes, sharing the costs of professional training & courses, life insurance, flexible working time, integration events, corporate sports team, no dress code, parking space for employees, extra social benefits, sharing the costs of tickets to the movies, theater, redeployment package, christmas gifts, employee referral program, charity initiatives, free chat/call with a therapist, Multisport card

Recruitment stages, Interview with the recruiter, Competency Tests/Language Verification, Video call with a manager, Final Decision

Capgemini Polska, Capgemini is a global leader in partnering with companies to transform and manage their business by harnessing the power of technology. The Group is guided everyday by its purpose of unleashing human energy through technology for an inclusive and sustainable future. It is a responsible and diverse organization of over 360,000 team members globally in more than 50 countries. With its strong 55-year heritage and deep industry expertise, Capgemini is trusted by its clients to address the entire breadth of their business needs, from strategy and design to operations, fueled by the fast evolving and innovative world of cloud, data, AI, connectivity, software, digital engineering and platforms.

This is how we work,