Banner Default Image

GUI Developer - React /Javascript

Our client looking for a Sr Web Gui Developer to work in a growing London Office. This is a senior role, but we will consider junior candidates who are willing and able to grow into it.


  • 3+ years of production JavaScript development experience
  • Must be able to communicate effectively in written and spoken English
  • Must be able to work productively in a cross-disciplinary team
  • Must be able to balance attention to detail with the pressure to deliver
  • Experience developing multi-tier web-based applications, with focus on the front-end
  • Experience with REST APIs and with the HTTP and Web Sockets protocols
  • Experience with the React/Redux ecosystem
  • Experience with troubleshooting performance and memory issues
  • Experience with OpenFin or similar is of interest, but not required
  • Experience developing applications for financial services is a bonus
  • Experience with financial derivatives is a bonus
  • Extra bonus points for engaging with back-end developers to create better APIs


  • JavaScript, SCSS, React, Redux & ag-Grid
  • Java 11, Python, C++
  • Spring Boot & Spring Cloud
  • Lagom & Akka
  • Kafka
  • SQL Server & Apache Cassandra
  • Docker, Kubernetes, TeamCity