Senior C#/.Net Software Developer (m/f/d)

Founded in 2005 by Peter Chaljawski, the Chal-Tec Corporation is one of the biggest eCommerce businesses counting 500 employees from 28 countries. We establish and sell more than 13 brands which range from Home & Living, Consumer Electronics, Sound & Light as well as Sports & Health. 7000 products are reaching our customers in 21 European countries via trading platforms like our own webshop and through well-known marketplaces like ebay and Amazon. Klarstein ( and auna ( are the biggest and best known brands in our portfolio.
We are an innovative eCommerce business with ambitious goals, but we always aim to achieve the highest customer satisfaction. This is why we are searching for motivated colleagues who will help us make our ideas and visions become reality.

We are currently expanding our .NET team and you will have the chance to give valuable input on the team’s setup and work environment. We are looking for bright team members and are open to different levels of experience. 

Your Responsibilities

  • You will play a key role in the development, optimization and maintenance of APIs across all systems (ERP, WMS,50+ webshops, 30+ Marketplaces)
  • You will be an active player in the design and development of our internal “secret sauce” tools (Dynamic Pricing, Forecasting, Business Intelligence)
  • You will take part in upcoming Azure-based middleware projects 
  • You will write and test software using object-oriented design principles

Your Profile

  • You have 5+ years of experience in backend software development with C# and .NET framework
  • You have experience managing a team
  • You live continuous integration, continuous deployment and containerization
  • You like to think both as an architect and as a coder
  • You have experience with cloud technologies, ideally with MS Azure
  • You actively leverage message brokers (MSMQ, RabbitMQ, Kafka, etc) and, ideally, also with FaaS and Serverless architectures
  • You have proficient skills in Database Technologies such as Microsoft SQL Server, Mongo DB, Cosmos DB
  • You work and manage agile
  • You are a clean code evangelist
  • You are a team player with great sense of responsibility and ownership

We Offer

  • Varied and challenging tasks and projects with a high level of responsibility
  • An international team full of motivated colleagues within a dynamic e-commerce player
  • Open corporate culture with flat hierarchies and short decision paths
  • Development and training opportunities
  • Daily delivered fresh fruits and vegetables, as well as drinks and employee discounts
  • Flexible working hours (core working hours between 10am and 4pm) and a fully equipped workplace in a modern loft office in the heart of Berlin (Spittelmarkt)
Interested? Please click the following button to fill out our online application form. We are looking forward to your application!

Chal-Tec GmbH
Wallstr. 16, 10179 Berlin, Deutschland