Senior Full Stack Java Engineer

At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe.  

We are looking for an experienced Senior Fullstack Java Engineer to join a well-established international team working on a large-scale transformation program within a global financial environment.

You will be part of a long-term initiative focused on building a modern microservices platform, while also supporting existing systems and driving the migration journey.

Sounds like your kind of challenge?

#LI - Hybrid: 2/week from the office in Kraków.

What you get in return

Flexible cooperation model – choose the form that suits you best (B2B, employment contract, etc.)

Hybrid work setup – Hybrid: 2/week from the office in Kraków.

Collaborative team culture – work alongside experienced professionals eager to share knowledge 

Continuous development – access to training platforms and growth opportunities 

Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more 

High quality equipment – laptop and essential software provided

Daily tasks

• Design, develop and maintain scalable Java-based applications.
• Contribute across the full software development lifecycle.
• Work in an Agile / DevOps environment with CI/CD practices.
• Build microservices and REST APIs.
• Ensure high quality through testing (TDD, integration, regression).
• Collaborate closely with QA, DevOps and product teams.
• Support production systems (monitoring, incident resolution).
• Mentor junior team members

Requirements

8+ years of experience in Java development.

Strong experience with Java 17/21 and Spring Boot.

Hands-on experience building microservices architectures.

Solid knowledge of PostgreSQL.

Experience with DevOps / CI/CD pipelines.

Good understanding of Agile methodologies.

Experience with TDD (JUnit) and automated testing.

Strong communication skills.

Nice to Have

Experience with Spring Cloud ecosystem.

Knowledge of Angular / TypeScript / HTML5.

Familiarity with cloud environments (AWS or GCP).

Experience with messaging systems (MQ, Solace).

Working with distributed systems / in-memory data stores (e.g. Redis, Hazelcast).

Exposure to AI-assisted development tools (e.g. GitHub Copilot).

Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.

Must have: Java, Spring, Boot, CD pipelines, PostgreSQL, DevOps, CD pipeline, Microservices architecture, TDD, JUnit, Automated testing, Cloud

Nice to have: Angular, TypeScript, HTML5, AWS, GCP, IBM MQ, Redis, Hazelcast, GitHub