Javascript .net Fullstack Web Application Developer

Quant Capital
London

Javascript .net Fullstack Web Application Developer

Quant Capital is urgently looking for a Javascript .net Fullstack Web Application Developer to join our high profile client.

Our client is the world leader in Market data management systems, with clients globally such as most of the major investment banks. Their team in Tunbridge is at 63 and rapidly expanding. As a developer you will work in small teams consisting of a BA, Implementation consultant, web and windows developer and a PM.

You will focus on a third-generation .NET web application suite, although legacy solutions also comprise of ASP.NET WebForms.

All new development is built using React JS for the client side backed by WebAPI (C#) REST Endpoints. For managing application state, they use Redux and Immutable JS. Existing features which are in active maintenance use the Backbone Marionette framework, but due to the impressive performance and productivity benefits of React, we have chosen to gradually phase out these older frameworks. We use open source JavaScript libraries extensively, most notably Lodash, Plotly Charts and React Virtualized.

Postman covers API level testing. Full stack integration testing is handled by a proprietary test rig that utilises Selenium. Manual feature testing and an in-depth understanding of client requirements are also a key part of delivering high quality software at MDSL.

Day to day the FullStack Developer will:

• Design and implement custom mission critical services and applications using the .NET Framework and SQL technologies.

• Take a project through the entire lifecycle of analysis, design, coding, testing, implementation and support.

• Design, build, and maintain efficient, reusable, and reliable .net and React code.

Full Stack Developers MUST have:

  • 2:1 Computing Science degree from an EU University
  • 2 Years commercial experience
  • JavaScript – Hand written ES6/2015+, React, Redux, Backbone/Marionette
  • ASP.NET WebAPI 2 using C#
  • Production experience of an ORM – Ideally Dapper or Entity Framework 6
  • Testing Frameworks – Jest and/or FakeItEasy
  • Patterns & Practices – SOLID principles, Functional vs Imperative programmingExperience with Entity Framework, Dapper or a similar ORM.
  • Experience with Test Driven Development.
  • Proficiency with code versioning tools such as Git or SVN.

This is a young and dynamic team with a range of people. They look for good technical skills as well as excellent communications skills and offer the latest technology in a cutting edge market.

My client is based in Tunbridge Wells

ES6, React, Redux, ASP.NET, WebAPI, C# Developer

Posted 2025-10-30

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