Expert Java Developer

Senior • Hybrid

$22,000 - $26,000/

Gdańsk, Poland

Salary: 1100 - 1300 PLN/day on B2B

Work model: hybrid from Gdańsk (2, 3 days per week from the office)

Why choose this offer?

You can expect a flexible work organization
The international work environment will give you the opportunity to interact with the English language on a daily basis
Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit)
The Jit community will bring you a nice time during regular integration meetings

Project

You will be involved in a financial project focused on supporting the PIP (Payments Information Provisioning) Downtown team in delivering SEK Batch functionalities. The project plays a key role in building and maintaining distributed, high-performance backend systems within the financial domain, with a strong emphasis on event-driven architectures and real-time data processing.

We are looking for an Expert Java Developer with strong experience in Kafka-based event-driven systems and relational databases, who is comfortable working in complex, distributed environments. The ideal candidate combines hands-on backend development with a solid understanding of software architecture, scalability, and clean code principles, and can actively contribute to both implementation and technical decision-making.

Responsibilities you'll have

Support the PIP Downtown team in delivering SEK Batch functionalities
Design, develop, and maintain backend services in Java
Design, implement, and optimize Kafka producer and consumer logic
Build and operate services running in Kubernetes-based environments
Work with relational databases (Oracle, DB2, MSSQL or similar)
Build distributed, highly-available, and high-throughput applications
Apply architectural patterns such as microservices, domain-driven design, and event sourcing
Ensure clean, maintainable, and high-quality code

Expected competences and knowledge

Java – Expert level (minimum 8 years of experience working as a Java Developer)
Kafka – Expert level, including designing and optimizing producer and consumer code
SQL – Senior level (Oracle, DB2, MSSQL or similar RDBMS)
Proven experience in building distributed, highly-available, high-throughput systems
Hands-on experience in applying domain-driven design, event sourcing, microservices architecture, and clean code principles in real-world projects

Nice-to-have knowledge and experience

Data engineering background
Kubernetes – hands-on experience in running and operating backend services

Technologies you'll work with

Java
Kafka
Oracle / DB2 / MSSQL
SQL
Kubernetes
Microservices
Event-driven systems

Client – why choose this particular client from the Jit portfolio?

Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client's premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer's work atmosphere is epitomized by the Scandinavian culture, which is conducive to people who place emphasis on work-life balance and feedback culture. Furthermore, all projects are executed in international teams, giving constant exposure to the English language.

About Jit Team

The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts. We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme.

Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity. By supporting indigenous initiatives, we ensure the circulation of good energy.

Jit Team

Jit Team is a Polish company that operates in the IT industry, focusing on creating highly specialized teams for clients worldwide. With over 700 experienced experts, Jit Team emphasizes the human factor in IT, prioritizing people and their development. The company is deeply committed to its philosophy of "The Human factor of IT," which is reflected in its charitable and educational activities, such as supporting students with learning equipment and offering internships to launch IT careers. Jit Team has been active for over 15 years and is known for its strong relationship with a leading financial group in the Nordic countries, serving as their premier partner in Poland. The company values work-life balance, feedback culture, and international collaboration, often working in teams that provide exposure to the English language. Jit Team is also involved in supporting local initiatives, ensuring the circulation of positive energy within the community.