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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on a large-scale financial system transformation and building a modern microservices platform. Technologies used include Java 17/21, Spring Boot, PostgreSQL with DevOps, CI/CD, TDD (JUnit) practices. Responsibilities cover developing and maintaining scalable applications, production support, Agile work, and team mentoring. Benefits include private healthcare, Multisport card, insurance, and training budget.
from: 8 June 2026
to: 8 July 2026
30 000 - 33 000 złnet (+ VAT)/ hr.B2B contract (full-time)
Offer parameters
level:senior
working mode:hybrid
location:Kraków, Lesser Poland
Kraków, Lesser Poland
Requirements
Expected technologies
Java
Spring Boot
PostgreSQL
JUnit
Optional technologies
Spring Cloud
Angular
TypeScript
HTML
AWS
Google Cloud Platform
GitHub Copilot
Operating system
Windows
Our 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.
Optional
- 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).
Your responsibilities
- 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.
About the project
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.
This is how we organize our work
This is how we work
agile
This is how we work on a project
- TDD
- Continuous Deployment
- Continuous Integration
- DevOps
- test automation
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.
What we offer
- 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.
Benefits
- sharing the costs of sports activities
- private medical care
- sharing the costs of professional training & courses
- life insurance
Mindbox Sp. z o.o.
At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe.
Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.
Senior Full Stack Java Engineer
30k–33k zł / hr. (B2B)
I apply to:
Mindbox Sp. z o.o.
Kraków, Lesser Poland
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