Senior Java Developer
B3 Consulting PolandLesser Poland Voivodeship, Poland
Posted April 10, 2026
Full Time
About the Company
B3 Consulting Poland is a part of B3 Consulting Group AB, one of the fastest growing consulting companies with experienced consultants in the field of IT and project management. Our goal is to build a company with a strong business culture that promotes entrepreneurship, where our consultants have excellent development opportunities. We work with international Clients from such industries as finance, insurance, manufacturing, aviation and others.
Job Description
We are a part of a multinational organization listed on NASDAQ in Stockholm, operating in 11 countries. In Poland, we have full autonomy, and we implement various IT projects in Poland and globally. Our cooperation is based on the CARE philosophy, which stands for responsible choice of projects, transparent cooperation, and a long-term approach to development.
Requirements
- Must live and/or have the right to work in Poland
- Minimum 7 years of commercial experience in creating backend in Java
- Expert knowledge of the Spring Framework and Hibernate (ORM)
- Practical experience with JOOQ for creating type-safe SQL
- Solid knowledge of relational databases, particularly PostgreSQL
- Experience with message brokers, particularly RabbitMQ
- Proficiency in writing and maintaining unit and integration tests (JUnit)
- Knowledge of CI/CD tools (Jenkins) and Google Cloud Platform (GCP)
- Attention to applying Clean Code principles and good programming practices
- Documented ability to work with legacy systems - refactoring and stabilizing existing code
- Ability to work with legacy code in terms of refactoring and error removal
Benefits
- Work in a Scandinavian culture based on logic and dialogue
- Benefits in the area of health and sports tailored to your needs
- Speed Coaching, short sessions that give new perspectives and solutions
- Sports training, internal team, joint competitions
- Integration events and development meetings
