Contract / £575 - £616 per day
Lead JavaScript / React Developer, 6 months, Leeds/Hybrid, £575 – £616/day (Inside IR35)
My client, a leading digital consultancy are currently looking to bring on a Lead React Developer on a 6 month initial contract working for a big banking clieny of theirs.
The client is based in Leeds and require someone who can be on site 2/3 days per week.
Responsibilities
1. Technical end-to-end design for stories by collaborating with business analyst/product owner, technical architect, and clients
2. Implement stories end-to-end, which includes Frontend, Backends for Frontend (BFF), Caching and service orchestration in some cases) using best engineering practices like test-driven development, SOLID principles and consideration of non-functional requirements like performance, scalability, security or cloud readiness (as applicable) at the story level
3. Automates testing at unit, module and integration level as needed using tools relevant for the platform (e.g. Jasmine, Jest, Karma, Webdriver.io etc.)
4. Focus on quality by implementing best practices like logging, calling out technical debt, meeting KPIs using code quality tools like SonarQube, ESLint (customize and sync with Sonar), Stylelint/Sasslint and so on.
5. Hands-on with automating redundant work, like common component structure, both in terms of scaffolding as well as using the right design patterns / creating abstractions.
6. Mentor junior engineers in helping review code, guiding on technical decision making
Your Skills & Experience:
7. 6 to 10 years of Experience on FrontEnd Technologies
8. Hands-on knowledge of HTML5, CSS3, JavaScript
9. Hands-on experience working with Object Oriented JavaScript (OOJS), JavaScript
10. Experience working with Single Page Applications (SPA) with universal rendering capabilities.
11. Good understanding of React.js, its core principles – lifecycle methods, virtual DOM etc.
12. Understanding of one-way data flow and the Flux architecture.
13. Understanding of stateful (container) vs stateless (presentational) components and how to break down the application page into components
14. Core understanding of how React’s state management works out of the box.
15. Understanding of different CSS architectures that go hand-in-hand with React.js application development. Pros and cons of component-level CSS vs global and where to apply each
16. Thorough understanding of Webpack bundler (version 2+).
17. Good understanding of the Web Components standard.
18. Hands-on experience with building Progressive Web Apps (PWAs) on any framework.
19. Hands-on experience with Frontend Performance Optimization – especially in a React application with respect to resource loading strategy, CPU/Memory profiling on the browser.
20. Hands-on experience with test-driven development using Jest or equivalent. Familiar with snapshot testing, code coverage. Experience working with utilities like Enzyme
21. Experience using fluid grids, and building responsive/adaptive websites using Bootstrap etc.
22. Understanding of SEO and accessibility and making it part of the development workflow
Set Yourself Apart With:
23. Logically understands relational databases like MySQL and non-relational databases like MongoDB and can manage to work with it.
24. Hands-on experience with GraphQL.
25. Hands-on experience working with client-side templating languages like Handlebars, Mustache, etc.