IT Support Engineer

Inetum · Warsaw, Poland · full-time · Hybrid · August 13, 2026

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Posted August 13, 2026 · Read from Inetum
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Job Description

Tasks:

  • Maintenance and development of custom internal applications.
  • Retrieving source code and reproducing reported bugs in applications.
  • Analyzing issues in C# code and SQL databases.
  • Documenting problem resolutions in the ticketing system.
  • Escalating more complex tickets to third-line support.
  • Using application documentation containing descriptions of the most common issues.
  • Applying knowledge of C# and SQL to diagnose and resolve tickets.

Qualifications

Must have:

  • Strong SQL skills — able to write queries (top priority)
  • Basic C# knowledge — able to read and understand C# code (or another OOP language like Java)
  • Experience or willingness to do application support for a proprietary business application (learn business domain and handle tickets)
  • Good communication and adequate English to understand problems and follow instructions
  • German language

Nice to have:

  • Ability to use/read related tools (e.g., Visual Studio, SQL Server Management Studio) — can be learned on the job
  • Tools: Visual Studio Code, Management Studio
  • Applications: C#, Rest API, Angular
  • DB: MS SQL Server, Informix
  • Source code: SVN, Git

Additional Information

Proficiency in Polish, English, and German at least at the B2+ level.

You choose the form of cooperation yourself – employment contract or B2B contract.

We hereby inform you that Inetum Polska sp. z o.o. has implemented an internal reporting (whistleblowing) procedure. The content of the procedure and the possibility to submit an internal report are available at:

https://inetum.whispli.com/speakup?locale=pl

Employer
Inetum
Location
Warsaw, Poland · Hybrid
Contract
full-time