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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on developing business systems based on microservices. The technology stack includes Java and Spring Boot, event-driven tools like Apache Kafka or RabbitMQ, and databases Oracle/PostgreSQL. Responsibilities include designing and implementing microservices, building and enhancing REST API, implementing event-driven communication, integrating with external systems and databases, writing unit and integration tests, participating in code reviews and optimizing solution quality.
from: 24 September 2026
to: 24 October 2026
20 000 - 22 400 złnet (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:senior
working mode:hybrid
location:Warszawa, Masovian
Warszawa, Masovian
Requirements
Expected technologies
Java
Spring Boot
Apache Kafka
RabbitMQ
Oracle
PostgreSQL
Git
Maven
Optional technologies
Azure
Kubernetes
GitLab
Jenkins
Operating system
Windows
Our requirements
- 5+ years of experience with Java.
- Strong knowledge of Spring Boot.
- Proven experience with microservices architecture.
- Practical knowledge of REST API.
- Experience with Apache Kafka or RabbitMQ.
- Familiarity with Oracle or PostgreSQL.
- Ability to write reliable unit tests.
- Knowledge of Git, Maven, and CI/CD tools.
- Good command of English and Polish to ensure effective technical communication.
Optional
- Experience with Azure.
- Knowledge of Kubernetes or AKS.
- Familiarity with GitLab or Jenkins.
- Previous experience in financial or insurance sectors.
- Hands-on work with high-availability systems.
Your responsibilities
- Develop applications using Java and Spring Boot.
- Design and implement microservices.
- Build and enhance REST API solutions.
- Develop event-driven communication mechanisms.
- Integrate applications with databases and external systems.
- Create unit and integration tests.
- Participate in code reviews and ensure coding best practices.
- Optimize the quality and performance of solutions.
- Collaborate closely with analysts, testers, and architects.
- Note: Detailed project information will be shared during the recruitment process.
About the project
We are looking for an experienced Senior Java Developer to join our client's team and contribute to the development of business systems built on microservices architecture. This role involves creating new functionalities as well as enhancing integrations between applications.
Sounds like your kind of challenge?
This is how we organize our work
This is how we work
agile
This is how we work on a project
- Continuous Deployment
- Continuous Integration
- DevOps
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
- Hybrid work setup – 1-2x/week from the office in Warsaw
- 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 Java Developer
20k–22.4k zł / mth. (B2B)
I apply to:
Mindbox Sp. z o.o.
Warszawa, Masovian
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