UI Developer

UI Developer

Posted 2 days ago by Experis UK

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Negotiable
Inside
Undetermined
Knutsford, England, United Kingdom
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Ajax (Programming Language) Application Programming Interface (API) Cascading Style Sheets (CSS) ES6 Module Loader Front End (Software Engineering) Git (Version Control System) HTML5 HyperText Markup Language (HTML) JavaScript (Programming Language) Jest (JavaScript Testing Framework) JQuery Management Network Performance Node Package Manager Nodes (Networking) React.js SASS Software Coding Software Development SonarQube Source Codes Test-Driven Development (TDD) Unit Testing User Interface Version Control

Summary: The UI Developer role based in Knutsford requires a candidate with extensive front-end development experience, particularly in JavaScript, ReactJS, and related technologies. The position involves completing a coding assessment and emphasizes strong skills in CSS, AJAX, and unit testing. Candidates must also demonstrate knowledge of accessibility standards and version control tools. The role is PAYE through an umbrella company and is set to last until September 2025.

Key Responsibilities:

  • Complete a HackerEarth coding assessment to evaluate technical skills.
  • Develop front-end applications using JavaScript, jQuery, HTML5, and ReactJS.
  • Implement CSS3 and CSS pre-processors in development.
  • Work with AJAX/JSON for data handling.
  • Apply accessibility standards in UI development.
  • Utilize TDD and automated unit testing frameworks.
  • Manage source code using SCM tools like GIT/Perforce.
  • Optimize network performance for applications.

Key Skills:

  • Extensive experience in JavaScript ES6, HTML5, CSS3.
  • Minimum 5-7 years of experience in ReactJS, including hooks and context API.
  • Experience with state management using Redux.
  • REST integration and AJAX (XHR) knowledge.
  • Exposure to unit testing with Jest, Enzyme, and React Testing Library.
  • Familiarity with Nightwatch or Cypress for testing.
  • Knowledge of tools like SonarQube, Grunt/gulp, npm.

Salary (Rate): undetermined

City: Knutsford

Country: United Kingdom

Working Arrangements: undetermined

IR35 Status: inside IR35

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

Role Title: UI Developer

Location: Knutsford

Duration: ASAP - 30/09/2025

MUST BE PAYE THROUGH UMBRELLA

Role Description

Candidates will be required to complete a HackerEarth coding assessment to evaluate their technical skills and problem-solving abilities.

  • Front end development experience using Javascript and jQuery, HTML5, ReactJS and other UI technologies
  • Strong experience with CSS3 and CSS pre-processors
  • Strong experience with JavaScript and working with React, Redux, node.js
  • Strong experience of working with AJAX / JSON
  • Strong understanding of accessibility standards and its application
  • Strong understanding of TDD with experience of automated unit testing using mock object frameworks.
  • Knowledge of SCM tools like GIT / Perforce
  • Knowledge of tools like SonarQube, Grunt/gulp, npm
  • Working knowledge of Javascript unit testing
  • Knowledge of Network Performance optimization

Essential Skills

  • Javascript ES6, HTML5, CSS3 - If you're a creative type let's see that SASS and LESS
  • Minium 5-7 years extensive experience in ReactJs, hooks and context API.
  • Experience with state management with Redux.
  • REST integration and Ajax (XHR)
  • Exposure to unit testing with Jest, Enzyme, React Testing Library
  • Nightwatch (or if you're really on the money tell us what you know about Cypress)
  • GIT
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