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’ll be doing

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

Note: Detailed project information will be shared during the recruitment process.

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

Who we’re looking for

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.

Senior Full Stack Java Engineer

Kraków

B2B

1500 - 1650 PLN/MD netto + VAT

Apply for position

I will handle your recruitment

Aneta Nankiewicz

SUPPORT & BENEFITS

Private healthcare

Fast access to doctors and medical tests.

Mindbox fully covers the individual package. You can extend the coverage to your partner and family on preferential terms. A wide network of medical providers and clear rules for everyday use.

Multisport

Energy that pays off.

We cover 50% of the card cost. You get access to thousands of sports facilities across Poland, plus a convenient mobile app. Additional cards for family members are available.

Training & development

Practical support for your career growth.

We co‑fund courses, certifications and conferences under a clear Training Policy. You also get access to a library of recorded webinars and trainings – available whenever you need them.

Eyewear or contact lenses co‑funding

Clear vision means comfortable work.

Up to PLN 500 every two years, with an additional PLN 300 available in justified cases. Simple reimbursement, regardless of your form of cooperation.

Group life insurance

Real protection from day one.

Option I is fully funded by Mindbox, Option II is co‑funded. You can include your partner and adult children, with coverage that also applies to treatment and hospitalisation abroad.

Ongoing support from the Talent Network Development

You’re not on your own in a project.

Regular contact, quick response and a partnership‑based approach. You focus on your work — we help take care of the rest.

Regular integration meet‑ups

Relationships that work beyond the project.

Cyclical meet‑ups for contractors in major cities across Poland. A space to talk, exchange experience and stay in real contact with the Mindbox team.

Annual company‑wide integration

One event. The whole community.

A two‑day company gathering with accommodation, transport and a full activity programme. Time to connect teams from across Poland and build shared experiences.