Mid-Weight JavaScript Developer

Salary: CompetitiveLocation: London or Bristol

Our size gives the tech team the best of both worlds - big enough to work with diverse clients on challenging problems, but small enough where each team member is a powerful and important voice in delivering valuable software. We move fast and look to our tech team to keep us moving toward the future, whether that means cloud native applications, micro services, highly available message queues, or faster deployment pipelines.

As a Mid-Weight JavaScript Developer at e3, you will need to be up-to-date on the latest trends. You should be fluent in modern ES2016 and ES2017 syntax, and have developed client side applications either by hand or using a VDOM based library.

You should understand patterns for complex client side applications, including MVC or Flux, and understand how to leverage functional programming techniques.

You should also be comfortable working with CSS processors including PostCSS and SASS, and be up to date on modern features such as flexbox and grids. A keen eye for design is a must as you work alonside our UX and Design departments. e3 takes accessibility seriously, you should be knowledgable about the W3C WCAG technical standard and how to write compliant semantic HTML.


  • Semantic HTML
  • ES2016 standards
  • Thorough understanding of VDOM based library
  • Flux architecture
  • PostCSS / SASS
  • Webpack
  • Functional programming concepts
  • git

Nice to have

  • Other languages such as C#, PHP, Java, Go
  • Gang of Four patterns
  • RESTful API design
  • Firebase, Contentful, or other BaaS platforms

e3 works to provide developers with the tools they need to get the job done. You will be provided with an IDE of your choice, funds and time for training, a Xeon E5 powered computer, dual screens, CI/CD with VSTS, a come-as-you-are dress code, and an espresso machine, bowl of fruit, and biscuit tin.

If this sounds like just the job for you, we’d love you to get in touch. Please send us your CV and a covering letter telling us why you’re the person we’re looking for using the link below.

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