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Senior.NET Application Maintenance Engineer
  • Gdańsk
Senior.NET Application Maintenance Engineer
Gdańsk, Gdańsk, Pomeranian Voivodeship, Polska
Jit Team sp. z o.o.
3. 3. 2026
Informacje o stanowisku

technologies-expected :


  • .NET
  • ASP.NET
  • .NET Core
  • .NET Framework
  • SQL
  • Jenkins
  • TeamCity
  • Azure DevOps

about-project :


  • Salary: up to 1300 PLN/MD on B2B
  • Work model: remote
  • We are looking for a highly skilled Senior .NET Application Maintenance Engineer to join our dynamic team. In this role, you will focus on maintaining, troubleshooting, and optimizing applications built with ASP.NET, .NET Core, and .NET Framework. Your expertise in MSSQL databases, debugging, and performance improvement will be crucial in ensuring smooth system operations. Our teams follow a T-shaped, cross-functional setup, meaning engineers contribute beyond their primary expertise. While you will focus on application maintenance, you should be comfortable taking on small tasks in different areas, including bug fixes, PR reviews, or DevOps contributions. We value collaboration and adaptability over rigid role definitions.

responsibilities :


  • Maintain and support applications developed in ASP.NET, .NET Core, and .NET Framework
  • Identify and resolve software and database performance issues
  • Optimize SQL queries and stored procedures to improve system efficiency
  • Collaborate with cross-functional teams to debug and resolve production issues
  • Implement performance improvements and ensure application reliability
  • Work with build and deployment tools (e.g., Jenkins, TeamCity, Azure DevOps)
  • Communicate progress and technical updates to stakeholders and team members

requirements-expected :


  • Bachelors degree in Computer Science, Engineering, or a related field
  • Strong development experience in .NET technologies (ASP.NET, .NET Core, .NET Framework)
  • Expertise in troubleshooting production system issues
  • Solid experience with MSSQL databases, SQL, and stored procedures
  • A proactive, problem-solving mindset
  • Previous experience in debugging and performance optimization
  • Familiarity with CI/CD tools such as Jenkins, TeamCity, or Azure DevOps
  • Strong communication skills to interact with both technical and non-technical stakeholders

offered :


  • Work in an agile and self-sufficient team with autonomy over development
  • Collaborate with an English-speaking, multicultural team
  • The client is one of the European leaders in its field and is building a completely new platform using the latest technologies
  • The Jit community will bring you a nice time during regular integration meetings
  • Enjoy work-life balance in a company that values flexibility and innovation

  • Praca Gdańsk
  • Gdańsk - Oferty pracy w okolicznych lokalizacjach


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