🔥 Senior Backend Engineer (C# & AWS)

17 000 - 25 000 PLNNet per month - B2B
17 000 - 25 000 PLNGross per month - Permanent

🔥 Senior Backend Engineer (C# & AWS)

Net

Northmill Bank AB S.A., Oddział w Polsce, Katowice

Northmill

17 000 - 25 000 PLN
Net per month - B2B
17 000 - 25 000 PLN
Gross per month - Permanent
Full-time
B2B, Permanent
Senior
Hybrid

Tech stack

    Polish

    C1

    English

    B2

    .NET C#

    advanced

    SQL

    advanced

    AWS

    nice to have

    Cloud

    nice to have

    Web Services

    nice to have

Job description

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, AWS ( incl. fargate, lambda, S3, event bridge), Jira, Confluence, Git, and Rider/Visual Studio.
  • You will use DDD and CQRS.
  • You will work using modern AI dev 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. We are always looking for new knowledge and have a curiosity out of this world, we think that you have the same mindset and you are excited to read about the latest tech trends. You might also, like us, love to write nice and high-quality code.

We hope you are not afraid to inform us about problems and have your thoughts on various solutions.

You are a team player and used to work in an Agile environment.

Since we are a multicultural team English is the required language.

Published: 14.08.2025
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🔥 Senior Backend Engineer (C# & AWS) - Northmill