We are looking for a Senior JavaScript developer who is proficient in React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.

Responsibilities
1. Developing new user-facing features using React.js
2. Building reusable components and front-end libraries for future use
Translating designs and wireframes into high quality code
Optimizing components for maximum performance across a vast array of web-capable devices and browsers.

Requirements / Qualifications
1. Any professional certifications in React, like IBM or similar certifications.
2. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
3. Thorough understanding of React.js and its core principles
4. Experience with popular React.js workflows (such as Flux or Redux)
Familiarity with newer specifications of EcmaScript
6. Experience with data structure libraries (e.g Immutable.js)
7. Familiarity with RESTful APIs
8. Working knowledge of modern authorization mechanisms, such as JSON Web Token
9. Familiarity with modern front-end build pipelines and tools
10. Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
11. Ability to understand business requirements and translate them into technical requirements
12. A knack for benchmarking and optimization
13. Familiarity with code versioning tools {{such as Git, SVN, and Mercurial