C# .NET Full-Stack Developer

Elektronika S.A.

Gdynia, Pl-Pm, Poland • 27m ago • On-site

Senior

On-site

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Quick Facts

  • Focus: Full-stack development for business applications and infrastructure

Description

Develop and maintain C#/.NET business web applications, B2B platforms, and integrations with ERP and BPM systems. Build business logic, web interfaces, REST APIs, and database solutions, then deploy and diagnose applications on Windows Server/IIS. Support IT infrastructure maintenance (servers, services, networks) and help automate repeatable tasks.

Responsibilities

  • Develop and maintain business applications, B2B platform, and ERP/BPM integrations
  • Design and implement business logic, web interfaces, REST API, and database solutions
  • Deploy and troubleshoot applications on Windows Server/IIS; analyze errors and performance
  • Collaborate on maintaining IT infrastructure (servers, services, networks) and automate routine tasks

Requirements

  • Minimum 5 years of experience building web applications in C#/.NET (ASP.NET MVC and/or Web API)
  • MS SQL Server, T-SQL, Entity Framework, and ADO
  • Practical HTML, CSS, and JavaScript (jQuery experience helpful)
  • Basic Windows Server and IIS administration
  • Networking knowledge: TCP/IP, DNS, HTTPS/TLS
  • Independence in troubleshooting across application, database, and server; strong code quality and collaboration skills

Benefits

  • Stable employment on a contract of employment; compensation tailored to experience
  • Real impact on the development of systems used by employees and clients, from project to go-live
  • Diverse challenges and opportunity to expand skills within a small IT team

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