Front End Developer -JavaScript, React, typescript, Redux, NodeJS, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API.Perm Role – London – Remote£80000 plus bonusHarrington Starr has partnered up with a Fintech with a focus on supplying Trading Systems to their Clients and are looking to hire a Senior UI Developer with expert Software Engineering skills using JavaScript, React to help work on a range major UI project across the Fund. This is a very good opportunity to a Senior Developer to come work on a Greenfield Project working on Exchange and connectivity services.As the Senior UI Developer, you will have extensive experience of working with the JavaScript Framework including ES7 and HTML and CSS. You will be working directly with their clients and end users where you will be responsible for specing out, designing and developing of UI screens for the users. This will require you to have client facing experience as well as low level programming with JavaScript and React Development experience.Their systems cover all asset classes from FX, Fixed Income, Interest Rates and Commodities including derivative products although this knowledge is not essential but would be advantageous.Secondly you will also work and Lead a small number of React Developers to help complete projects. You must have proven experience with Software Engineering using React, Redux and Webpack including GraphQL.Key Tech Stack:Extensive React FrameworkSolid JavaScript programmingExperience with TypescriptExperience with Data Visualisation development.HTML and C55Experience with WebpackExperience with GraphQLRESTful API development.BSc with Computer Science, Engineering or Mathematics.We are keen to speak to Senior Developers to help this Exchange move their customer facing web services get into the next gen tech. Please apply via the link below.