React.js Developer

Front end Developer : (Group Manager )

Job Description

Join our product development team to develop our web applications

You are a creative web programmer that will focus on the front-end development and design, but also assist as needed with back-end development if needed.

Design, production, modification, and maintenance of web application’s user interface

Assist with the development and implementation of new features

Work with back-end developers to implement front-end and user interface requirements

Work with team on designing new interfaces to programs

Thoroughly document design and implemented code

Qualifications

- B.E. or B. Tech or MCA

- 5 to 8+ years of overall experience

5 years of frontend web application development

Proficient understanding of web markup, including HTML5, CSS3

Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery. Strong understanding of JavaScript

Good working experience of any of advanced JavaScript libraries and frameworks such as AngularJS, KnockoutJS, BackboneJS, ReactJS

Good understanding of asynchronous request handling, partial page updates, and AJAX

Proficient understanding of code versioning tools GIT/SVN

Good understanding of browser rendering behavior and performance

Good knowledge of charting any frameworks like Highcharts, Highmaps or D3JS

Working with and leveraging cloud PaaS components for front end delivery

Experience in any server-side programming is a plus

Familiarity with Visio, Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image is a plus.

The Opportunity At Certa, we are building the AI-native Operating System for global enterprise relationships. We have the clients (Fortune 100/500) and the robust backend technology. Now, under the guidance of our new Head of Design, we are elevating our experience to match the best consumer products in the world. We are looking for our First Design Engineer. You are the "missing link" between our pragmatic engineering requirements and our ambitious design vision. You won't just implement tickets; you will define how our product feels.

The Role This is not a standard Frontend Engineer role, nor is it a Product Designer role. This role is equal parts: Craft-focused Frontend Engineering: You write production-grade code, but you obsess over the details that others miss. Systems Thinking: You don't just build components; you build the architecture (Design System) that allows the rest of the team to build beautiful UI faster. Figma-to-Code Mastery: You bridge the gap between static Figma files and dynamic browser realities, moving fluidly between design and implementation.

What You Will Do

1. Architect the Design System & UI Patterns Take ownership of our internal design system. You will treat it as an internal product, creating a type-safe, accessible, and composable library in React & TypeScript. Manage the tokens, components, patterns, documentation, and governance required to scale design across a remote engineering team. Bridge the gap between Figma Variables/Tokens and code, ensuring a single source of truth for our visual language.
2. Make AI-Native UX Feel Trustworthy & Human Implement interaction patterns specifically for AI workflows: streaming states, progressive disclosure, and optimistic UI. Build for "explainability" and human-in-the-loop controls, ensuring users trust the system even when it automates complex tasks. Make complexity feel simple—especially when the system is performing sophisticated "smart" operations in the background.
3. Maximize Output with AI-Assisted Tooling Hyper-automate the mundane: Use AI coding assistants (Cursor, Copilot, etc.) to handle boilerplate and scaffolding, allowing you to spend 80% of your time on the 20% of the "feel" and "craft." Build tooling and guardrails (linting rules, visual checks, component playground workflows) that help the team ship high-fidelity UI consistently.
4. Bridge Design & Code (Figma-First) Live in Figma: You are expected to be as comfortable in Figma as you are in VS Code. You’ll tweak layouts, design missing states, and refine prototypes yourself. Push performance beyond just metrics: focus on rendering, bundle size, perceived speed, and interaction responsiveness. Raise the bar on accessibility and cross-browser behavior, ensuring the product is usable by everyone.

Must Haves

1. Expert Figma Skills: This is a primary requirement. You should be fluent in auto-layout, components, variables, and prototyping. You view Figma as a design environment and a technical spec.
2. AI-Assisted Workflow: You are a "power user" of AI tools (Cursor, Copilot, v0, etc.). You know how to leverage AI to move faster without sacrificing the quality of the final output.
3. Strong Frontend Foundation: Deep expertise in React + TypeScript with a track record of shipping complex, data-heavy UIs in production.
4. Demonstrated UI Craft: A portfolio showing obsession with spacing, typography, interaction detail, and motion. You likely have a "Folder of Inspiration" from the best apps in the world.
5. Design System Experience: Strong experience building and maintaining a design system: tokens, components, patterns, and documentation.
6. Accessibility Expertise: You build keyboard-first UX, understand screen reader behavior, and enforce correct ARIA usage by default.
7. Modern Tooling: Experience with Vite and modern frontend tooling; comfortable setting up and customizing JS tooling/build systems.

Why You? (The "Craft" Factor)

1. You are inspired by the design-engineering cultures of companies like Linear, Vercel, Family, or Arc (The Browser Company).
2. You get annoyed when a modal closes without an exit animation.
3. You understand that latency is a UX problem, and you use optimistic UI updates to make the app feel instant.
4. You believe enterprise software doesn't have to look like a spreadsheet from 2005—it should feel as fluid as the best consumer apps.
5. You are an "AI-augmented" engineer who uses modern tools to do the work of three people while maintaining the taste of an artisan.

The ideal candidate will have at least 2 years of experience in developing scalable and responsive web

applications, and will be able to work collaboratively with other developers and stakeholders to deliver

high-quality software products.

Responsibilities

● Develop and maintain responsive and scalable web applications using React and JavaScript

● Write clean, efficient, and maintainable code that adheres to coding standards and best practices

● Collaborate with other developers and stakeholders to design and implement software solutions

that meet business requirements

● Work with UX/UI designers to implement user interfaces that are intuitive and visually appealing

● Optimize web applications for maximum speed and scalability

● Participate in code reviews, testing, and debugging to ensure that the software meets quality

standards

● Stay up-to-date with the latest industry trends and technologies, and make recommendations to

the company on how to best incorporate them into its products and services

● Proficient in client & server-side JavaScript, HTML5, CSS3 and webpack

● Competent in building single page web applications using Node.js and React Js

● Redux for state management

● Universal rendering (Client-side rendering and Server-side rendering)

● Experience with cross-browser, cross-platform, and design constraints on the web

● Experience in developing automated unit and functional tests

● Experience in an agile development process

● Solid knowledge of algorithms and design patterns

● Have a passion for quality and writing clean, readable code that scales and performs well

● Good interpersonal communication skills

Desired Candidate Profile

● At least 2 years of experience in developing web applications using React/NextJS/VueJs and

JavaScript

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 using Typescript. 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 a highly responsive user interface 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, Typescript, Redux, Flux, HTML / CSS.

- Experience working with Graphql and Hasura is a plus

- 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.

- Minimum of 2 years experience with React Js

- Minimum of 3 years of web development experience.

POSITION SUMMARY:

The primary responsibility of this position is to work under prototype team, to develop/maintenance the current system.

KEY RESPONSIBILITIES AND DUTIES:

• Develop new components
• Maintenance of existing components
• Design and Documentation of the newly created job
• Attend and resolve JIRA tickets
• Design & development of screens as per requirments

QUALIFICATION

• Hands on technical resource.
• 3 – 6 years’ experience.
• Mandatory Skills:
  • lit-element/lit-html+Angular2+//React/Vue/Stencil(Experience in at least 1 of these frameworks is must)
  • HTML, HTML5, CSS, CSS3
  • JavaScript, OOPS JavaScript, jQuery
  • SQL, MySQL, database
• Optional:
  • js

Job Location- Pune

Experience – 4 to 7 Years 
Notice Period - Immediate preferred 

The Ideal Candidate-

This position is for UI Developers with hands-on experience in leading-edge technologies, looking to mark a niche in the software Industry

Essential Skills-
.

• Strong Command on Core Javascript, Core Java
• Strong Command on Angular JS and React JS
• Strong Knowledge of HTML5, CSS3 
• Highly Preferred, experience in D3, Canvas API 
• Ability to work on advanced javascript frameworks

If you are interested in an exciting role with learning and rewards, do apply.