.Net developer

At Madiff, we connect top IT talent with cutting-edge companies through remote Agile teams and nearshore outsourcing. With operations in Poland, Portugal, France, and the UK, we specialize in AI, DevOps, and Cybersecurity – supporting industries like Telecom, Banking, and Hi-Tech.

Are you a passionate .NET Developer ready to contribute to the next-generation banking systems?We’re looking for a skilled engineer to join a major strategic digital transformation initiative – building a new Corporate Banking System from scratch, designed to integrate with over 30 internal systems across risk, credit, payments, and compliance.

Key responsibilities:

• Develop scalable backend features using .NET 6/8

• Design and implement REST and SOAP services

• Participate in architecture refinement and system design

• Collaborate with analysts and product teams on functional and technical requirements

• Conduct code reviews and write unit tests to ensure application quality

• Integrate Kafka for asynchronous communication and event streaming

• Maintain and improve application security, performance, and scalability

• Create and update technical documentation

  
  

What we are looking for:

• Min. 5 years of experience in .NET development

• Proficiency in C#, .NET 6/8, Entity Framework, and SQL Server

• Strong experience in building REST/SOAP APIs

• Familiarity with microservices, distributed systems, and integration-heavy environments

• Experience with Kafka

• Fluent Polish and minimum B2 English

Nice to have:

• Experience in banking or fintech projects

• Knowledge of domain-driven design and secure systems

• Understanding of CI/CD practices and working in Agile environments

• Frontend skills with JavaScript/TypeScript, especially using React

What we offer:

• Hybrid work model – 1 day per week in the client's office (Warsaw or Gdańsk)

• Opportunity to work on greenfield enterprise-level solutions

• Collaborative and multicultural international environment

• Comprehensive medical care