Senior C# / .NET Developer

The Opportunity

We're looking for an experienced Senior C#/.NET developer based in or around Europe, to expand our engineering team. The ideal candidate likes to lead, take responsibility, and motivate fellow team members to keep a high bar for quality, speed and security. You should be comfortable taking decisions on the fly, as well as take the leading role in making sure the dev team is meeting deadlines and commitments.

You'll play a large role in developing new features and leading by example. Your educational background is less important than your previous professional experience, your drive, and your personality. 


  • Write clean, scalable and testable code
  • Develop new features and improve existing ones
  • Review and refactor code
  • Document development and operational procedures
  • Analyze system requirements and prioritize own tasks
  • Be a team player
  • Participate in team meetings and discussions


  • Comfortable working with an existing code base
  • 4+ years of experience working with C#
  • In-depth .NET knowledge (experience with .NET 7 would be a plus)
  • Experience creating and maintaining REST APIs
  • Familiarity with agile environments
  • Experience with asynchronous programming
  • Experience with message brokers for high volume data processing between systems
  • Excellent troubleshooting abilities and problem-solving skills
  • Good communication skills in English, both verbal and written
  • Living in Europe or CET time zone
  • Comfortable working remotely and communicating via camera / microphone over tools such as Zoom

Extra bonus points for the following (not required):

  • Development on SaaS systems and startup experience
  • Experience with ERPs and accounting software
  • Cosmos DB/DynamoDB experience
  • Experience with GraphQL, Hangfire, and/or Aurora (MySQL)

The Stack

From a technical point of view, Corpay One's back-end is built on .NET with C#. On the front-end we work in TypeScript on the React framework, enabling us to build reliable web experiences that can handle high usage volumes. The product consists, among others, of a web application and a mobile application. This role is primarily back-end focused.