React.js Developer

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.

SaveIN is a fintech platform that aims to offer unique financial products and services to its members in a never seen before, fully digital avatar through its mobile app on Google and Apple play store. You can also call us a neo-banking platform!

Founded by a group of experienced CXOs from Banking, Fintech, Consulting and Media, SaveIN is working towards disrupting the way Indians transact, bank and save money.

At present, SaveIN is offering a revolutionary, new to market, product called Social Finance (SoFin™) allowing users to lend and borrow money, within their trusted contacts like family, friends and acquaintance. In due course, SaveIN aims to launch several other financial products and services in the personal finance and banking domain.

Our promise to you:

• We aim to hire the best of talent, passionate about the vision of SaveIN
• We aim to create an equal opportunity, open, challenging as well as rewarding environment to bring the best out of our people
• We are here to be a large, prosperous, profitable, and resilient organization so that we may serve our customers sustainably across economic cycles, we aim to achieve this in the most ethical and transparent manner possible
• Being compliant is not only an obligation, but a chosen way of life
• We would love to see you grow and are committed to do our best in contributing towards your success

About the role:

SaveIN is looking for a Software Engineer | React JS

You will be responsible for building visually engaging user experiences as well as using out of the box thinking to devise new techniques for presenting content and data. You will work with developers, designers, product and also the founding team.

Location: Gurgaon/ Work from home

Key responsibilities:

• Develop class leading and highly responsive front-end interfaces using React.js
• Translating designs and wireframes into high quality code and output
• Communicate effectively with UI/UX team and technical development team
• Create unit tests to ensure visual consistency and adequate functionality across releases
• Ensure cross-browser, cross-platform and multiple device compatibility and resolve issues.
• Document technical design as per internal compliance standards
• Work with senior management and external stakeholders to ensure that deliverables are met

Skills and competencies:

• Education: BE/BTech/ME/MTech/MCA
• Minimum 3-year industry experience and proficiency in developing front-end components using React JS, Angular.io, Vue.js, HTML 5, Web markup and CSS 3
• Experience in Typescript
• Hands on experience with state management tools like Redux/Mobx
• Fine understanding of Node.js based tooling like Webpack, Grunt/Gulp, NPM, Express JS, Babel, Create React App etc.
• Good knowledge of working with dynamic data (e.g., JSON, XML) through various interface types (e.g., REST, SOAP)
• Experience of working with responsive web designs across multiple platforms
• Experience with integrating Analytics Tool like Google Analytics, Mix Panel etc
• Experience in creating mock-ups/ proof-of-concepts based on wireframes
• Ability to learn new UI technologies quickly
• Understanding of SEO and accessibility issues
• Experience of full software development life cycle, standard and secure coding practices and pro
• Experience with content delivery networks and an understanding of web caching
• Experience with unit testing using frameworks such as Mocha, Chai, Enzyme, Cypress, or Jest
• Experience with Jenkins and Docker a plus
• Experience on any backend technologies Node.JS, Python, Java, PHP will be a good add on
• Experience in Scrum/Agile is desirable

It is an app platform (Android & iOS) that offers discovery, trials and purchase of lifestyle brands across multiple categories like beauty and grooming, food and beverages, health and wellness, fragrances, smart technology, accessories, services and experiences targeted towards the upper middle class.

What shall be expected of you:

● Be responsible for the core UI framework, and implement and maintain it.

● Responsible for the development of the front-end applications and

components.

● Coordinate with the backend engineers & designers for requirement

gathering of the product.

● Responsible for quality assurance including web usability, accessibility,

testing and debugging.

● Build reusable code and libraries for future use.

You must have:

● 2-5 years of prior hands-on experience in building responsive web

interfaces for consumers.

● Strong development experience in the following technologies (HTML,

CSS, Javascript, AJAX, working with REST APIs)

● Front end frameworks/libraries such as ReactJS, and Redux.

● Ability to translate product requirements into functional code.

● Ability to estimate the scope of work for sprint planning.

● Self-motivation and ability to work in a small team with minimal

supervision.

Would be awesome if you are also good at:

● SEO and page speed optimization.

● Web standards, Responsive design, and cross-browser compatibility,

Accessibility.

● Additional web technologies like Angular, Vue JS, Next JS etc.

● Must be fluent in writing code in ES6+ along with linters. ● CSS

preprocessor - SCSS/ LESS

• Design and implementation of the frontend applications and Mobile apps
• “Pixel-perfect” implementation of our approved user interface
• Ability to understand business requirements and translate them into technical requirements
• Break features into simpler granular tasks, estimate effort required, and identify dependencies
• Work with Analyst and back end developers to deliver a seamless user experience
• Write clean, efficient, maintainable code with good test coverage
• Build reusable code and libraries for future use and optimize the application for maximum speed and scalability
• Test and Debug as required

Expected Qualifications and Key Skills

• BSc or B.E in Computer Science / Engineering from a tier-1 college in India or abroad
• Proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Strong understanding of UI/UX, responsive design, cross-browser compatibility, AJAX, and general web standards
• Thorough understanding of React.js and its core principles
• Experience with popular React.js workflows (such as Flux or Redux)
• Familiarity with newer specifications of EcmaScript/TypeScript
• 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
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• Proficiency with Git / Version control