Senior Software Engineer (Java, with German)

Capgemini; Poznań; On-site; PLN 220,000 - 320,000; Full time

Benefits offered by this job

Private medical care

Life insurance

Hybrid work model

Training & certification programs

Job summary

Capgemini Polska is hiring an experienced Java developer to design, build and maintain Java-based applications supporting public sector processes. You will work with Spring, Hibernate and Kubernetes in a modern CI/CD environment, shaping solutions with architects and product teams in cross‑functional, international groups.

Join a company that values continuous learning, hands‑on mentorship and practical AI-enabled tooling, with hybrid work options and access to extensive training tracks to grow

Qualifications

• 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
• 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. B1).
• Nice to have: experience in tech lead role.

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).
• 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.

Skills

Java/JVM

Unit testing

English

German

Education

Technical degree

Tools

Spring

Hibernate

Maven

Git

Kubernetes

JUnit

Mockito

Job description

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive world.

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.

We are hiring in all cities across Poland

• 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).
• 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.

Your profile

• 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
• 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. B1).
• Nice to have: experience in tech lead role.

What You'll love about working here

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).

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.

Get to know us

Capgemini is committed to diversity and inclusion, ensuring fairness in all employment practices. We evaluate individuals based on qualifications and performance, not personal characteristics, striving to create a workplace where everyone can succeed and feel valued.

Do you want to get to know us better? Check our Instagram — @capgeminipl or visit our Facebook profile — Capgemini Polska. You can also find us on YouTube.

Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organizations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2024 global revenues of €22.1 billion.