Lead/Senior JavaScript React Front End Developer

Lead/Senior JavaScript React Front End Developer

  • Location

    London, England

  • Sector:


  • Job type:


  • Salary:

    £55000 - £80000 per annum

  • Contact:

    Fynn Johnson

  • Email:


  • Job ref:


  • Published:

    about 1 year ago

  • Expiry date:


  • Startdate:


  • Consultant:


Remote Senior/Lead JavaScript React Front End Developer | Central London | £55,000-£80,000 | JavaScript | React | Jest | Enzyme | ES6 | ES7 | HTML | CSS

My client are a fast growing multi award winning technology company in Shoreditch. They create large scale platforms to enable the world's biggest brands to create high quality digital experiences. They are happy to offer and negotiate remote working for this position.

They build platforms, software development kits and code libraries to enable the worlds biggest brands deliver great digital communication. Their offices thrive with the intelligence and initiative of a hardworking and enthusiastic team whose combined knowledge and ability has created some of the finest enterprise technology to date.

Essential Technical Skills

  • Client-side JavaScript, specifically including React/Redux and ES6/ES7.

  • Web technologies including HTML5 and responsive CSS3

  • Use of a CSS framework such as SemanticUI or Bootstrap, and ideally CSS preprocessors such as LESS and SASS.

  • Experience writing unit tests (ideally using Jest/Enzyme).

  • Using and debugging REST APIs, including concepts such as CORS and authentication techniques.

  • Experience debugging the quirks of different browsers (older IE, Mobile Safari), and on mobile devices.

  • Source control and team workflow using git and github.com, including PRs, and peer code reviews.

  • Working collaboratively in an agile environment including providing accurate development time estimates.

Desirable Technical Skills

  • Experience of performance profiling JavaScript, particularly in React.

  • Web optimisation best practices such as JS/CSS minification/compression, image optimisation, lazy loading, chunk splitting etc.

  • Selecting and integrating 3rd-party libraries.

  • Working knowledge of the OS command line and a relevant scripting language (Bash, Perl, Python), or NodeJS scripting.

  • Experience with Cordova or React Native.

  • Experience or knowledge of any non-React web framework.

Why join this company?

  • Competitive Salary DOE

  • Quarterly bonus based on company performance,

  • Join a company culture which prioritises personal wellbeing.

  • Create bespoke learning plans as you work.

  • Celebrate success with recognition awards.

  • Monthly evening socials and delicious breakfasts.

  • 25 days holiday, plus extra gifted company holiday days

  • Options for flexible working hours.

  • Childcare vouchers.

  • Perkbox

Remote Senior/Lead JavaScript React Developer | Central London | £55,000-£80,000 | JavaScript | React | Jest | Enzyme | ES6 | ES7 | HTML | CSS

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