New offer - be the first one to apply!

June 19, 2026

🔥 Senior Backend Engineer (C# & AWS)

Senior • Hybrid

17,000 - 26,000 PLN

Katowice, SL, Poland

The scope of your role

As a Senior Backend Engineer, you will take part in the process of the design and development of modern financial applications. You will develop advanced monitoring systems used in running operations in the AWS cloud environments. You will have an impact on our applications by working closely with businesses and clients who use our banking products.

You will work with C#, .NET, ASP.NET and AWS (incl. Fargate, Lambda, S3, Event Bridge), as well as Jira, Confluence, Git, and Rider/Visual Studio. You will use DDD and CQRS and modern AI development tools.

Required qualifications

  • 5+ years of commercial experience in creating web applications
  • Solid experience developing applications using C#
  • Solid experience in working with SQL databases
  • Willingness and interest to collaborate and work in a team

Preferred qualifications

  • Experience with software engineering best practices (code reviews, continuous integration, continuous deployment, testing)
  • Exposure to Agile development methodologies
  • Familiar with Web services/web API
  • Familiar with the AWS platform
  • Experience in working with NoSQL databases

About you

You are a creative and curious person with a genuine interest in software development. You enjoy learning about the latest tech trends and writing high-quality code. You are comfortable raising problems and sharing your thoughts on various solutions. You are a team player used to working in an Agile environment. English is required due to the multicultural team.