Senior Software Developer .NET (m/f/d)

The INTERNETONE AG is a specialist for online performance marketing and is a leading online full service provider in Germany. We offer a broad portfolio of services to our customers which contains business analysis, software develoment, creation, product management, online marketing and HR services. We support our customers along the entire life cycle of an online product and because of our passion and our knowledge we are experts all along the line.

We know, we can, we do!


For our software development team we are currently looking for a

Senior Software Developer .NET (m/f/d)
reference no. BIJ-SWBEb-1942

Your tasks:

  • development and optimisation of current and new web applications in FrontEnd and BackEnd
  • modern, object-oriented software development with C#/ASP.NET Core and ASP.Net MVC using Docker Container
  • code review of other team members
  • working as a team member or stand alone role in new projects

Our offer:
  • a secure business with constant growth since 2009
  • fast integration into our motivated, international team at our modern offices in the heart of Cologne
  • flatrate of Fruits, Snacks, Coffee and Tea

Sounds like your job? Then please send your full application including your salary expectations stating the reference no. BIJ-SWBEb-1942 to

We are looking forward to meeting you!

More information available on

KölnTurm / Im Mediapark 8
50670 Köln


Your profile:

  • experience in designing, testing and implementing tasks as a stand alone developer
  • strong practical knowledge with ASP.Net MVC Core, EF Core, ASP.NET MVC, WebApi and TDD
  • good knowledge in frontend development (JavaScript, TypeScript, client-side frameworks (e.g. Angular or React)
  • experience in application architecture
  • strong knowledge of Design Patterns and SOLID principals
  • hands-on experience with multithreading development

Einzelheiten zum Job Stellenart: Vollzeit
Anzahl Stellen: 1
Beginn: sofort
Dauer: VB
Letzte Änderung: 16.10.2019

50670 Köln

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