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React JS Developer Job Description
A React JS Developer is responsible for building reusable UI components and managing state changes to create efficient, scalable, and maintainable front-end applications. Here's a breakdown of the job:
Key Responsibilities
- Developing User Interfaces: Build reusable UI components using React, JSX, and CSS to create visually appealing and user-friendly interfaces.
- State Management: Manage state changes and props to ensure seamless data flow between components.
- Component-Driven Development: Develop components that are modular, reusable, and easy to maintain.
- Debugging and Troubleshooting: Identify and fix bugs, performance issues, and other problems to ensure high-quality applications.
- Collaboration: Work with cross-functional teams, including designers, back-end developers, and project managers to ensure successful project delivery.
Essential Skills
- React: Strong understanding of React, including components, state, props, lifecycle methods, and hooks.
- JavaScript: Proficiency in JavaScript, including ES6+ syntax, closures, and asynchronous programming.
- HTML/CSS: Knowledge of HTML5, CSS3, and CSS preprocessors like Sass or Less.
- Front-end Development: Experience with front-end development best practices, including accessibility, performance optimization, and security.

- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
- Thorough understanding of React.js and its core principles.
- Experience with React.js workflows (such as Flux or Redux).
- Knowledge with RESTful APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Experience with data structure libraries
- Experience with modern front-end build pipelines and tools
- Experience with common front-end development tools and Best practices.
- Ability to understand business requirements and translate them into technical requirements
- Ability to benchmarking and optimization application.

Job Description:
We are looking for a good JavaScript developer who is proficient with 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
- Developing new user-facing features using React.js
- 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
Skills:
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles
- Experience with popular React.js workflows (Redux)
- Familiarity with newer specifications of ECMAScript
- Experience with data structure libraries (e.g., Immutable.js)
- Knowledge of isomorphic React is a plus
- Familiarity with RESTful APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Familiarity with modern front-end build pipelines and tools
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Familiarity with code versioning tools (such as Git, SVN, and Mercurial)

* Work with the product managers and designers and co-own our consumer app (1M+ userbase)
* Own our admin dashboard for all the product offerings - digital gold, gold loan, & gold locker
* Architect, design, and maintain frontend libraries for both our consumer application and admin dashboard
* Mentor team of 3 - 4 frontend developers to build a robust, lightweight, and high-performance client-side app
* Translating designs and wireframes into high quality Typescript code
* Write documentation and guides for consumer app & admin dashboard
Key Qualifications
* Expertise in ReactJS/Redux
* Expert-level knowledge in TypeScript or Flow
* PURE experience of 3- 5 Years and more in Frontend Development
* Expert-level knowledge of developing, shipping, and maintaining Javascript applications
* Knowledge of general software design patterns
* Good understanding of CSR and SSR
* Deep understanding of Javascript
* Up-to-date on the latest build tools, and libraries such as ES6, Webpack, Babel
* Proficient in Javascript with strong object-oriented design skills
* Able to work independently and drive results
Bonus
* Previous work experience in product-based (B2B/B2C) / fintech startups
* Contributed/maintained to an open source library

and the users. One will implement visual elements and their behaviors with user interactions.
You will work closely with both front-end and back-end web developers to build all client-side
logic. You will also be taking an active role on both sides, and defining how the application looks
and functions.
Must-Have:
● Strong proficiency with JavaScript.
● Hands-on experience with HTML5, CSS3, and Bootstrap.
● Good in understanding the nature of asynchronous programming, its quirks, and
workarounds.
● Development experience designing object-oriented JavaScript.
● Good with optimizing output to match the specific platform and understanding
differences between multiple delivery platforms, such as mobile or desktop.
Good to have:
● Good understanding of code versioning tools, i.e. Git.
● Understanding accessibility and security compliance.
● Knowledge of MySQL.
Responsibilities:
● Develop new user-facing features
● Build reusable code and libraries for future use
● Ensure the technical feasibility of UI/UX designs
● Optimize applications for maximum speed and scalability
● Validate all the user inputs before submitting to back-end services.
● Collaborate with other team members and stakeholders.

- Strong experience in building new features into one of the most advanced interfaces on the web
- Take a lead role with other engineers and designers to deliver strong customer-focused experiences
- Keep our product up to date with the latest frontend technologies such as React
- Practice disciplined software engineering (e.g. automated testing, code reviews, and writing beautiful, pragmatic code)
- Actively contribute to team and company standards
- Strong JavaScript development skills, understanding of new concepts, and proficiency in React, Angular, or other modern JS frameworks
- Extensive experience developing large-scale application software
- Have full knowledge of new HTML5 constructs, and CSS3
- Have experience with Single Page Application development
- Keep up to date with the newest technologies
- Develop features and create fulfilling user experiences
- A strong understanding of, and practical experience with, web application development
- A sincere commitment to crafting readable and reliable code
- Meeting with the development team to discuss user interface ideas and applications.
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Developing and implementing highly-responsive user interface components using React concepts.
- Writing application interface codes using JavaScript following React.js workflows.
- Troubleshooting interface software and debugging application codes.
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
- Documenting application changes and developing updates.
- Bachelor’s degree in Computer Science, Information Technology, or a similar field.
- 2 Years of experience working as a React.js Developer.
- In-depth knowledge of JavaScript, CSS, HTML and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
- Experience with user interface design.
- Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
- Excellent troubleshooting skills.
- Good project management skills.
- Proficient understanding of code versioning tools, such as Git
Experience in implementing UI using DHTML, HTML5, CSS3, Bootstrap. Ability to interact with APIs based on HTTP and REST architecture and handle dynamic data on frontend. Experience in writing unit test cases for UI components. Knowledge about securing application and vulnerabilities such as XSS & CSRF.
Ability to work with remote teams with good communication and personal skills. Should have worked in Scrum & Agile methodologies.




