ReactJS Developer (Remote)

** About the company: It's a US company. 

** Salary Range: Based on experience.

** Job Description:
- Delivering a complete front end application.
- Ensuring high performance on mobile and desktop.
- Writing tested, idiomatic, and documented JavaScript, HTML and CSS.
- Coordinating the workflow between the graphic designer, the HTML coder, and yourself.
- Interfacing application data to Google Firebase.
- Communicating with external web services.

** Requirements:
- Proficiency with JavaScript and HTML5
- Professional, precise communication skills
- Deep knowledge of ReactJS practices and commonly used modules based on extensive work experience
- Extensive current knowledge of Redux usage with React
- Extensive understanding of how to implement asynchronous React/Redux (must be experienced with use of ES2018 constructs and/or some 3rd part asynch package and how to interface with Redux via thunk/promise/saga or similar)
- Creating self-contained, reusable, and testable modules and components
- Ensuring a clear dependency chain, in regard to the app logic as well as the file system
- Ability to provide SEO solutions for single page apps
- Extensive knowledge of CSS and JS methods for providing proficient visual effects and keeping the framerate above 30fps at all times
- Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
- Validating user actions on the client side and providing responsive feedback
- Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed
- Creating custom, general use components which extend the elements and modules of core ReactJS
- Experience with all levels of operation available to the front-end, such as from creating XHRs in vanilla JS to using a custom wrapper around $resource
- Experience with building the infrastructure for serving the front-end app and assets
- Architecting and automating the build process for production, using task runners or scripts
- Documenting the code inline using JSDoc or other conventions
- Writing extensive unit tests using automated TDD tasks -- must have some experience with front end testing tools such as Enzyme, Jest etc that are common in React ecosystem
- Big plus: Webpack + node experience creating configuration, build, and test scripts for Continuous Integration environments, differentiating dev, stage, prod etc.
- Plus: Configuring basic CI/CD and deployment infrastructure using AWS services, or Gitlab in conjunction with outside server, or CircleCI or CodeShip or similar
- Plus: Creating e2e test suites for all components, and running them with Protractor (or a well reasoned alternative)
-  Please respond with your favorite color in the first word of your cover letter so we know whether your read this job posting or whether we should immediately delete your application.

 ** Communication Skills:
- Written and spoken english.
- Responsive communication over online tools (Slack / Google Hangout / Skype / Line etc) 

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