Senior Fullstack Developer
B3 Consulting PolandMasovian Voivodeship, Poland
Posted February 18, 2026
Full Time
About the Company
Polish outsourcing company with Scandinavian roots, valuing energy, logic, experience, and Scandinavian work culture.
Job Description
Join B3 Consulting Poland and become a Senior Fullstack Developer, contributing to a large-scale project in the financial sector, combining new components with legacy systems, using Azure cloud and latest.NET versions.
Requirements
- At least 6 years of commercial experience in C# (.NET Core / ASP.NET)
- Very good knowledge of relational databases and SQL
- Experience in designing distributed systems
- Practice in asynchronous communication (e.g. RabbitMQ, Azure Service Bus)
- Experience in building web front-ends (JavaScript / TypeScript / HTML / CSS)
- Freedom to work with Git / GitHub
- Self-motivation and initiative in solving problems
- English for documentation
- Higher technical education will be an additional advantage
Benefits
- Benefits in the field of health and sports tailored to your needs
- Free running and swimming training
- Internal triathlon team
- Joint competitions (Warsaw)
- Development activities tailored to your actions allowing to deepen expert knowledge
- Cyclic initiatives allowing for development in other IT areas than the current one