Senior C# Developer

Your tasks

• Designing and developing cloud applications based on C# and .NET,
• Creating architecture for high-volume, low-latency distributed systems,
• Implementing design patterns, microservices, and event-driven architecture,
• Optimizing application performance and scalability,
• Writing unit and integration tests, as well as test automation,
• Conducting code reviews and ensuring good engineering practices.

Requirements

• Min. 10 years of professional experience working with C# and .NET technologies,
• Experience in creating cloud applications based on Azure,
• Knowledge of design patterns, microservices architecture, and event-driven architecture,
• Ability to design application architecture and solutions in high-volume, low-latency distributed systems,
• Experience with relational databases such as Oracle, Sybase, and PostgreSQL,
• Practical knowledge of writing clean code, refactoring, performance optimization, and scalability engineering,
• Experience in writing unit tests, integration tests, and test automation,
• Ability to conduct code reviews and apply best engineering practices,
• English language proficiency at a minimum of C1 level.

Nice to have

• Experience in the banking / financial industry and knowledge of financial products,
• Experience in production maintenance and operational support,
• Practical knowledge of Docker, Kubernetes, and CI/CD deployments using GitLab,
• Knowledge of Python for analytical and automation purposes,
• Knowledge of monitoring and logging tools such as Splunk, Grafana, and App Insights,
• Understanding of RAG, MCP, and agent creation concepts.

Must have: C#, .NET, Azure, Oracle, PostgreSQL

Nice to have: Python, CI/CD, Docker, Kubernetes

What we offer

*Rate: 120-150 PLN/h + VAT Recruitment process:** Short phone call with an ITFS recruiter -> Technical verification -> Two technical interviews with the Client -> Decision

Other

*POSITION: Senior C# Developer Work location:** Wrocław or Kraków (Hybrid - 3 days a week from the office)