Back-end (.NET/C#) developer

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Back-end (.NET/C#) developer

Would you like to commit yourself to a rapidly expanding IoT platform? Do you want the freedom to use your vision to build the optimal API? Look no further because we are looking for you! 

  You will be working on a highly innovative door lock API that is being used on a daily basis by thousands of people all over the world. Security, stability and scalability are driving principles. You have experience with building API's (from scratch preferably) and you are used to applying the SOLID principles in your work.  


Daily culture

You’ll be working in a scrum team that consists of world-class developers. You collaborate with your team to determine how to design scalable backend systems and APIs. On a daily basis this means that you architect, develop, and operate the API’s and services of our Clay Locking Platform. 

You have experience writing distributed, high-volume services and you know how to deploy and keep them running in production. You care about delivering high quality code. 

Technical skills and expertise
  • Deep knowledge of the .NET Framework 4.6 and higher Experience in C#  
  • Experience with .NET core 2.0 is a big plus 
  • Experience in ASP.NET,  Web API, MVC, 
  • Experience in .NET standards Windows Services and Azure apps
  • Experience in MySQL
  • Experience with applying SOLID principles and Unit testing 
  • Experience in Scrum concepts and/or DevOps methodologies 
  • You preferably have built API's from scratch 

Working at Clay means becoming a “Brick”, and that means joining an international team of professionals who take initiative, own responsibility and share expertise

We expect everyone in our team to bring: 

  • A drive to learn and apply insights from previous experience
  • a highly professional attitude, innovative perspectives and ideas
  •  Individuality and eagerness to learn from, and work with others
  • Don't promise just prove mentality
  • Higher education or University level education

We offer

  • An office in the center of Amsterdam, near Central Station (and so beautiful you'll want to Instagram it!)
  • An exciting spot in our team, talented colleagues from all over the world
  • Ongoing motivation to become the best you can be
  • A work hard, play hard environment (we are big fans of Friday afternoon drinks, parties and events)
  • Great office atmosphere with foosball and pool tables, awesome coffee, herbal teas, cookies and fresh fruit
  • Flexible work hours & competitive vacation policy
  • Housing support for expats, help getting your visa and adjust to the Dutch culture
  • Clay is a recognized sponsor (IND procedure)


back-end developer


back-end developer