We are seeking a Full-stack .NET Developer to join us in identifying the best technologies to match business needs moving forward and to help us develop our fraud detection and prevention system into a standalone scalable solution. This is a green field project and whilst we are currently a .NET / Microsoft house, there is no prerequisite that the next generation of our fraud system is based on that stack!

You are a laser-focused Developer with a passion for technology and a curious mind. You are obsessed with your craft and have experience with a high degree of technical innovation while also being able to deliver reliably while also responding to commercial demands. You happily take ownership of projects, but also thrive in a highly collaborative agile environment where you can share your ideas and learn from others.


  • Design, build and release a real-time fraud detection / prevention solution
  • Select appropriate technologies / languages to achieve business needs
  • Write highly performant code – all requests must respond within 500ms
  • Write highly scalable code – at least 10k transactions / sec
  • Create a globally available solution with zero downtime
  • Ensure the highest possible quality in code and testing, automate as much as possible
  • Work with the product team to understand customer needs

Key Skills and Experience:

  • 5+ years commercial working experience with some of the listed technologies
  • Experience of TDD and associated test frameworks
  • Strong engineering background with excellent coding skills
  • Strong communication and collaboration skills, whether working independently or in a team

Our Stack:

  • C# / Scala
  • Mobile – Objective-C / Swift / Android / Xamarin
  • GitHub
  • Javascript: JQuery / Angular / React
  • Kafka
  • MS SQL Server
  • NUnit / Jasmine / Selenium WebDriver
  • TeamCity / Octopus / Powershell / Bash


  • Competitive salaries
  • The chance to work in a highly disruptive market alongside a very talented team
  • Excellent opportunities for career development
  • Regular team competitions, which involve money, tents and a lot of air!
  • We love to have fun here at Judo and enjoy many different many different activities, go-karting, BBQ’s (we have a wonderful roof garden), visiting
  • local pubs and of course cultural activities

Tagged as: .NET, Android, C#, objective-c, Scala, SQL, Swift, xamarin