Fullstack Developer

Java

Fullstack Developer

Java
Wola, Warszawa

B3 Consulting Poland

Full-time
B2B
Mid
Hybrid

Job description

Get on board with B3 Consulting Poland – a Polish outsourcing company with Scandinavian roots.

We value energy, logic, experience and freedom, all embedded in a truly Scandinavian work culture.


At B3, our CARE philosophy is more than a slogan.

It’s how we think and work every day – we care about people, tailor solutions to real needs, and take responsibility for what we build. We’re not just a workplace. We’re a community of passionate people who enjoy working together and learning from each other 🙌


Right now, we’re looking for a Fullstack Developer to help us build and grow a digital innovation center in Poland.


🚀What you’ll need to come on board

Frontend

  • Very good knowledge of JavaScript / TypeScript, HTML, CSS

  • Strong experience with Angular 14+ (SPA)

  • Understanding of reactive programming (RxJS)

  • Experience with Web APIs & OpenAPI (Swagger)

Backend

  • Solid experience with Java 8 / 17

  • Good knowledge of Spring Framework

  • Understanding of Java design patterns

  • Experience with RDBMS and SQL

  • Knowledge of JDBC, collections, serialization, memory management

General

  • Good understanding of Git, npm

  • Experience working in Agile / Scrum

  • Willingness to perform and participate in code reviews

  • Proactive mindset and ownership attitude

  • Min. English B2


One of the stages of the recruitment process is a technical assessment that evaluates knowledge of Java and Angular and takes about one hour to complete. This allows the final interview to focus on a discussion about the specific tasks and challenges involved in the project.


🚀 Your mission at B3

  • Develop backend and frontend features for multiple applications within the Digital Platform

  • Work on both new solutions and existing systems

  • Participate in code reviews and technical discussions

  • Take part in Scrum events

  • Collaborate closely with your team and communicate openly

  • Bring ideas, improvements and initiative💡


🎁 What we offer

  • Health & sports benefits tailored to your needs

  • Free running and swimming trainings

  • Internal triathlon team and joint competitions (Warsaw-based)

  • Tailor-made development paths to deepen your expertise

  • Cyclical initiatives that allow you to grow in other IT areas, not only your current stack


Apply today🚀

Tech stack

    English

    B2

    Polish

    B2

    Git

    regular

    Java 8/17

    regular

    RDBMS

    regular

    Angular 14+

    regular

    SQL

    regular

    JavaScript

    regular

    Spring

    regular

    RxJS

    junior

Office location

Published: 11.02.2026