Senior React JS Frontend Developer

What you’ll do: 

● Own and build next-generation web applications which are efficient, reusable front-end abstractions 

and systems. 

● Explore and design lively and compelling consumer experiences. 

● Ensure that all the assigned systems are performing to scale. 

● Actively participate in design and code reviews to build robust applications and prototypes 

● You will mentor junior engineers on design and proper coding practices 

What you will need: 

● A deep expertise in Angular / React, Javascript, HTML5 and CSS3. 

● Understanding of browser internals and a basic understanding of the network stack. 

● Understanding of common design patterns followed in front-end projects. 

● Basic awareness of application security practices and deployment techniques for front-end projects. 

● Should have sound knowledge in computer science fundamentals like data structure, object-oriented 

programming and possess excellent communication skills. 

1. Qualifications: Bachelor’s Degree in Computer Science, Information Technology, or a related field 

2. Certifications: NA 

3. The Experience That Sets You Apart: 

● 3+ years of hands-on experience building responsive web apps using React 

● Deep understanding of React hooks, component architecture, and state management .

●Experience with Shopify Liquid, themes, and Shopify APIs.

● Experience in building responsive websites and applications that work across various devices and screen sizes 

● Strong skills in JavaScript (ES6+), HTML5, and CSS3 

● Proven ability to own features end-to-end — from design handoff to production 

● Experience integrating with REST APIs and optimizing performance 

● Familiar with Git, code reviews, and CI/CD workflows 

● Exposure to testing frameworks like Jest or React Testing Library 

● Comfortable mentoring juniors and collaborating in cross-functional teams 

4. Your Subject Matter Expertise: 

● SaaS experience of 2 years with total development experience of 3 years 

● Must have worked in a smaller company of less than 100 

● Should have built solutions/softwares end to end and not just as a part of bigger team 

● Should see themselves going deeper into the same role even 5 years down the line 

● Strong proficiency in JavaScript, TypeScript, and ES6+ features. 

● Solid understanding of Redux, React Hooks, and component lifecycle. 

● Experience in developing responsive designs using HTML5, CSS3, and modern CSS frameworks (e.g., Tailwind CSS). 

● Familiarity with frontend build tools and module bundlers such as Webpack, Babel, and npm/yarn. 

● Strong debugging and problem-solving skills.Proficiency with version control systems like Git. 

● Understanding of performance optimization techniques, including lazy loading, code splitting, and caching.Experience with server-side rendering (SSR) and Next.js. 

● Knowledge of mobile-first and progressive web app (PWA) development. 

● Familiarity with design tools like Figma or Sketch for collaboration. 

● Exposure to e-commerce platforms like Shopify, BigCommerce, or Magento. 

● Understanding of backend technologies and REST/GraphQL APIs for better integration.

Key Responsibilities:

• Design and implement scalable server-side solutions using Java.
• Write optimized front-end code using HTML, CSS, and Javascript
• Write unit, automation, and integration tests
• Implement quality application logging for operational monitoring at scale
• Investigate, debug and resolve production site issues
• Work with co-located teammates to deliver on common goals

TECHNICAL & FUNCTIONAL REQUIREMENTS:

• Professional experience in enterprise Java software development using Spring MVC frameworks, RESTful APIs, and SOA
• Proficiency in HTML/CSS/JavaScript/jQuery
• Experience with Docker, Kubernetes, and microservices
• Experience with Selenium for UI automated tests written in Cucumber or Scala will be a plus
• Working knowledge of design patterns and CI/CD principles
• First class communication skills in written and verbal form
• Outstanding problem-solving skills
• A commitment to producing high-quality code with an attention to detail
• Dedication and a self-motivated desire to learn
• A collaborative, team-orientated attitude
• Experience working in the Cloud (AWS)
• API development experience
• Exposure to monitoring tools such as ELK, Splunk

Headless Development: Lead the frontend development of our Shopify app, including

building new features, revamping existing functionalities, and optimising performance.

User Interface Design: Collaborate with the design team to implement responsive,

pixel-perfect UI components that align with our brand’s aesthetic and provide an intuitive

user experience.

Custom Theme Development: Create and customise Shopify themes to enhance the

visual appeal and functionality of our online store, ensuring compatibility with various

devices and browsers.

Integration and API Management: Work with third-party APIs and Shopify's API to integrate

necessary functionalities, such as payment gateways, shipping solutions, and marketing

tools.

Performance Optimization: Continuously monitor and improve the app’s performance,

ensuring fast load times, seamless navigation, and a smooth user experience.

Collaboration: Work closely with cross-functional teams, including backend developers,

designers, marketers, and product managers, to deliver high-quality solutions on time.

Code Review and Best Practices: Maintain clean, modular, and reusable code. Participate

in code reviews and ensure adherence to best practices in frontend development.

Troubleshooting and Debugging: Identify and resolve issues, bugs, and performance

bottlenecks in a timely manner to ensure a seamless user experience.

Documentation: Create and maintain comprehensive documentation for code, processes,

and development workflows.

Job Description

• • Collaborate with developers and UI/UX engineers to build scalable web apps
• • Design, implement and manage large applications with video streaming and complex state and high-frequency data
• • Experiment with large data sets to find interesting and valuable ways to visualize the data
• • Build reusable, testable React components that can be used between projects
• • Contribute towards building the company’s coding culture.
• • Mentor, groom junior developers and participate in code reviews

Requirements

• • 3+ years of relevant industry experience
• • A deep understanding of JavaScript
• • React, Redux or other JS framework experience
• • HTML5, CSS/SASS, Restful APIs, HTTP
• • JEST or other testing experience
• • Experience with android app development
• • Experience with CI/CD
• • Experience with Mathjax/Latex
• • Experience with large scale video streaming
• • Understanding of i18n, A11Y
• • Excellent understanding of cross-browser compatibility issues
•  

React.js Developer Job Description

We are looking for a skilled react.js developer to join our front-end development team. In this role, you will be responsible for developing and implementing user interface components using React.js concepts and workflows such as Redux, Flux, and Webpack. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.

To ensure success as a react.js developer, you should have in-depth knowledge of JavaScript and React concepts, excellent front-end coding skills, and a good understanding of progressive web applications. Ultimately, a top-class react.js developer should be able to design and build modern user interface components to enhance application performance.

React.js Developer Responsibilities:

• 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.

React.js Developer Requirements:

• Bachelor’s degree in computer science, information technology, or a similar field.
• Previous 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.

We are currently hiring a Frontend developer for a startup in the B2C marketplace space based out of Mumbai.  This startup is an Online Marketplace, that serves as a Discovery and Booking Platform for Kids’ Activity Classes. Operations were launched in  November 2019, and have over 20KParents and 500+ educators listed on our Platform across the major Tier-I and Tier-II cities in India.

Platform details are listed below :

1. A SaaS platform for educators to simplify the management of their classes and

workshops. Educators get access to a dashboard and use our Class Management tool

to create listings, view registrations, manage bookings and payments. The dashboard

also provides analytics for teachers to track visitor traffic, see drop offs and

understand which social media channel generates maximum ROI for them.

1. Discovery & Booking Platform for parents so that they can search, view and book

classes and workshops for their children.

Top 2 role must have’s

1. You should have REACT JS experience of building a product
2. You should be willing to work in a very early stage startup( Not funded yet)

Tech skills required for this role:

• Front end design in REACT JS at least 1.5 years
• AWS server
• Mongo Database
• API's written in Nodejs

•  6+ years of web UI development experience including 4+ years of deep, hands on experience in building robust, highly reusable and responsive web applications using HTML, CSS3, SVG, React, Redux, Thunk ecosystem
• Great problem-solving skills with solid data structures and algorithms knowledge
• Strong ability to translate the design/wireframes into reusable micro components
• Experience of leading, coaching and mentoring junior developers with good delegation and time-management skills
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles and has extensively worked with Redux, Thunk, Axios etc
• Knowledge of modern authorization mechanisms, such as JSON Web Token, Oauth2 etc
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• A knack for perfection, benchmarking and optimization
• Writing and maintaining batch jobs to streamline processes (Shell, Perl etc).
• Strong understanding of Agile and Lean software development processes and practices
• Worked with WebSocket, Push notifications etc
• Experience working with local-storage, cookies etc
• Proficient understanding of CORS issues and ways to work with such issues.
• Proficient understanding of social network APIs.
• Experience with data structure libraries (e.g., Immutable.js)
• Inclined to take ownership of tasks and to ship highly polished products with excellent attention to detail.
• Strong verbal and written communication skills in English.
• BE/BTech in Computer Science or a related field or equivalent practical experience