NET Developer

We are looking for experienced .NET Developers to join a greenfield transformation project in the corporate banking sector. The team is building a modern, high-performance system from scratch using .NET 6/8, Kafka, and microservices, integrating with multiple enterprise platforms and delivering long-term impact for thousands of users.

Responsibilities

Development: Build scalable backend features in .NET 6/8 and microservices-based architecture Integration: Implement and integrate REST/SOAP services and event-driven systems with Kafka Collaboration: Work closely with analysts, architects, and business stakeholders on requirements and design Quality: Contribute to testing, deployment, optimisation, and system performance Requirements 5+ years’ experience in .

NET development Strong skills in .NET 6/8, REST, SOAP, SQL Server, Entity Framework Experience with Kafka and distributed/microservices architecture Understanding of enterprise system integration and APIs Polish fluency; English at B2 working level Nice to have: Experience in banking/financial systems or other enterprise-scale projects Background in secure systems or mobile banking Familiarity with DDD, event storming, or user story mapping Agile/SCRUM team experience Benefits Solid, competitive salary Work in multilingual, multinational and multicultural environment on international projects Comprehensive healthcare Long-term B2B contract with stable project pipeline Flexible hybrid model (1 day/week on-site in Warsaw/Gdańsk)