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September 25, 2026

Senior .NET Developer

Senior • On-site

Warsaw, Poland

Quick Facts

  • Role: Senior .NET Developer

  • Industry: Financial

  • Work model: Hybrid (Warsaw office 1x/2 weeks)

  • Collaboration: B2B (long-term)

  • Rate: Up to 150 PLN/h net + VAT

Description

Senior .NET role focused on advanced development in C# and the .NET ecosystem, including unit testing and test automation. You will also analyze user requirements and support system design for projects in the financial domain.

Responsibilities

  • Deliver IT projects using .NET technologies

  • Create and maintain applications in C#

  • Perform unit tests and automate testing

  • Analyze user requirements

  • Collaborate with the team on system design

Requirements

  • Advanced knowledge of .NET and C# programming

  • Experience with unit testing and automated test development

  • SQL knowledge and SQL Server Integration Services (SSIS)

  • Experience with Visual Studio, Git, and Jira

  • Experience with WCF, HTML, MVC.NET, and ASP.NET

  • English proficiency sufficient to understand technical documentation

  • 3–5 years of professional experience

Benefits

  • Long-term B2B cooperation

  • Hybrid work option in Warsaw

  • Rate up to 150 PLN/h net + VAT

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