This Job Vacancy has Expired!

Senior Front End ReactJS Engineer - 6 months FTC - £100-120k pro rata

Posted on Aug 24, 2020 by McCabe & Barton

London, United Kingdom
Immediate Start
£90k - £120k Annual

Our client is seeking an experienced Javascript web application developer who is proficient with React.js. Primary focus will be on developing user interface components and implementing them following well-known React.js workflows. Successful candidates will be joining a team of professionals in a fast-paced environment where they will be a key player with technical development responsibilities. A candidate for this position will be a self-starter who values their work and that of their team members, with a commitment to collaborative problem solving, and maintainable, testable code.


  • 5+ years React.js application development
  • Proficient in JavaScript, including DOM manipulation and the JavaScript object model
  • Hands-on experience with state management using Redux
  • Strong experience with HTML5 constructs and CSS3
  • Strong experience integrating with RESTful APIs
  • Strong experience with common Front End development tools such as Babel, Webpack, NPM, etc.
  • Experience implementing substantial design systems such as Material UI
  • Experience implementing unit testing and end-to-end testing with Jest, Cypress
  • Experience creating mockups/wireframes
  • Excellent verbal communication skills
  • Excellent problem-solving skills and attention to detail


  • Experience creating Progressive Web Applications (PWAs) - strongly desired
  • Experience leveraging Git as a source code versioning tool
  • Knowledge of modern authorization mechanisms, such as JSON Web Tokens
  • Experience implementing UX design principles
  • Graphical design experience
  • Familiarity with newer specifications of EcmaScript
  • Familiarity with modern Front End build pipelines and tools
  • AWS experience
  • Python Scripting

Whilst AWS and Investment Management (or other Financial Services) are both desirable, the successful applicant WILL:-

  • Design and build React.js web apps and integrate with AWS-hosted RESTful microservices and/or leverage AWS Javascript SDKs to connect to AWS-hosted resources
  • Build reusable components and Front End libraries for future use
  • Ability to understand business requirements and translate them into technical requirements
  • Improve user interactions and experiences on web pages
  • Translate designs and wireframes into high quality code
  • Optimize components for maximum performance across a variety of web-capable devices and browsers
  • Practice disciplined software engineering (eg automated testing, code reviews, and writing beautiful, pragmatic code)
  • Work collaboratively with the team during sprints to ensure technical obstacles are removed and deliverables are achieved
  • Propose optimizations to improve code maintainability and test-ability
  • Coordinate with business analysts/QA team to troubleshoot and debug issues, initiate testing, and ensure testing is completed successfully for website and service integrations

Currently all staff are working remotely and this can be the case for any/multiple extensions (through to 2022 for the right applicant)

Reference: 934453641

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