
JD: React Frontend Engineer (Web)
Role: React Engineer – Real-Time Web Applications
We are building data-intensive, real-time web applications. We need engineers who can handle dynamic data, performance constraints, and complex UI states at scale.
What You’ll Do
- Build scalable frontend systems using React
- Handle real-time data flows (WebSockets, streaming updates)
- Optimize rendering performance for high-frequency updates
- Build reusable component systems and state management
- Work closely with backend teams on API design
- Ensure observability (logging, error tracking, performance metrics)
Must-Have Skills
- Strong experience in React (hooks, state management)
- Experience with:
- Real-time data handling
- Large datasets / dynamic UI
- Performance optimization:
- Memoization, virtualization, rendering control
- Solid understanding of:
- Browser performance
- Network behavior
Good-to-Have
- Experience with dashboards / analytics tools
- Experience in streaming or content platforms
- Familiarity with WebRTC or RTC integrations
- Experience with SSR (Next.js)
What We Value
- Ability to handle high-frequency UI updates without lag
- Strong debugging and profiling mindset
- Clean architecture and reusable design systems

About i2b Technologies Pvt Ltd
About
i2b is a venture studio building AI-first consumer and B2B technology companies, partnering with founders to create scalable enterprise platforms and product-led businesses.
Founded by Deepak Gullapalli, i2b operates across AI-driven consumer products, scalable B2B SaaS platforms, and early-stage startup incubation, combining operating expertise, strategic capital, and hands-on mentorship to turn strong ideas into durable, high-growth companies while building the next generation of intelligent consumer and enterprise products.
Tech stack
Candid answers by the company
Hyderabad
Similar jobs
· 12+ years of professional experience in front-end development.
· 7+ years of hands-on experience with React.js and its ecosystem (Redux, Context API, Hooks, etc.)
· Strong understanding of JavaScript (ES6+), HTML5, and CSS3.
· Experience with RESTful APIs, GraphQL, and WebSocket integration.
· Proficiency in modern build tools (Webpack, Vite, Babel, etc.).
· Expertise in state management libraries (Redux, MobX) and React Query.
· Solid understanding of UI/UX principles and responsive design.
· Experience with testing frameworks (Jest, React Testing Library, Cypress, etc.).
· Familiarity with modern CI/CD pipelines and version control tools (Git).
Frontend Focused Software Development Engineer
We make websites conversational. Our AI agents turn any website into an interactive experience — chat widgets, intelligent search, and AI embeds that let users ask questions, get answers, and take action without navigating pages. We’re a fast-moving product startup building at the intersection of design and AI, and we need a frontend engineer who brings both craft and conviction to
what they ship.
What We Look For First
Before anything else, we review your work. This is how we assess every candidate:
- GitHub profile — active, with real production repositories. We look at commit consistency, code architecture, folder structure, and how you make decisions under constraints. Boilerplate clones and tutorial repos do not count.
- Live deployed projects — at minimum two publicly accessible web applications. We open them in the browser, resize the window, throttle the connection, and interact with them. We are evaluating visual polish, responsiveness, interaction quality, accessibility, and performance — not just whether it loads.
- UI/UX taste — we will form an opinion on your design sensibility from your live work before we speak to you. If your interfaces feel generic, unfinished, or visually careless, that is signal.
- Code we can read — we will look at your source code. Clean structure, meaningful naming, thoughtful component boundaries, and documented decisions matter as much as functionality.
Applications without a GitHub profile and at least two live deployments will not be reviewed.
The Role
This is a full-ownership frontend role at an early-stage AI startup. You willdesign, build, and maintain the interfaces our customers interact with everyday — from the core product dashboard to landing pages to AI-native conversational experiences. You are not a ticket-taker. You will have direct input on product direction, collaborate closely with founders, and be expected to bring both engineering rigour and design instinct to every surface you touch. We are looking for someone who sits firmly at the intersection of engineering and design: technically deep, visually opinionated, and relentless about quality.
What You’ll Do
Core Engineering - Build and architect production-grade applications using Next.js, React, TypeScript, and Tailwind CSS - Implement modern rendering strategies — SSR, SSG, ISR, CSR — with deliberate performance budgets and Lighthouse targets - Integrate real-time features using WebSockets, Server-Sent Events, and streaming APIs - Connect with Node.js/NestJS and Python backends via REST and GraphQL; implement and maintain auth flows (JWT, OAuth 2.0, session-based) - Manage application state using Redux Toolkit, Zu- stand, or TanStack Query; handle forms via React Hook Form and Zod - Own the frontend testing strategy end-to-end — unit, integration, and E2E — using Jest, React Testing Library, and Playwright - Contribute to CI/CD pipelines, Docker-based development environments, and deployment workflows UI/UX Engineering - Translate product requirements, rough wireframes, and Figma designs into polished, pixel-perfect, and accessible web interfaces — independently, without hand-holding - Build and maintain a scalable design system: tokens, spacing scales, typography hierarchy, colour systems, and reusable component patterns - Apply strong visual design fundamentals — layout composition, typographic hierarchy, whitespace, contrast, and colour — directly in code - Build complex dashboards, data-heavy interfaces, and multi-step interactive workflows with a focus on information architecture and usability - Design and implement AI-native UI patterns: streaming chat interfaces, inline AI suggestions, conversational flows, and real-time response rendering - Implement responsive layouts that work flawlessly across breakpoints, devices, and browsers - Conduct UI/UX self-review on your own work — you catch visual inconsistencies, interaction gaps, and accessibility issues before they reach review - Work with animation and micro-interaction libraries to add purposeful motion that enhances, not distracts
Architecture & Quality - Design modular, scalable frontend folder structures with clear separation of concerns - Enforce component-driven development practices using Storybook - Drive structured code reviews and uphold engineering quality standards across the team - Instrument observability and error tracking on the frontend (Sentry or equivalent) - Mentor junior engineers and establish
patterns the whole team can follow
What We’re Looking For
- 2+ years of production-grade frontend development — not freelance experiments or internal tools no one uses. Real products, real users, real traffic.
- Expert-level command of Next.js, React, TypeScript, and modern JavaScript (ES6+)
- Deep understanding of browser rendering, layout, and paint — you can diagnose performance issues beyond “run Lighthouse”
- A genuine, demonstrable eye for design — you understand layout, spacing, typographic scale, visual hierarchy, and colour theory, and you apply them instinctively in code
- Ability to independently take a rough idea or wireframe and produce a clean, well-structured, conversion-focused UI
- Strong working knowledge of accessibility standards (WCAG 2.1) and semantic HTML
- Experience building and consuming design systems, and the discipline to maintain them as a product scales
- Familiarity with design tools — Figma proficiency is a strong plus; you should at minimum be able to inspect, extract, and iterate on designs without designer dependency
- Experience integrating frontend applications with Node.js and Python backends
- Solid Git workflows, Docker-based local development, and CI/CD familiarity
- Ownership mindset — you think about the product and the user, not just the Jira ticket
Technical Depth We’ll Assess
During the hiring process, we will evaluate:
- Frontend architecture decisions — how you structure a scalable Next.js application, what tradeoffs you make and why
- UI/UX implementation quality — can you take a design brief and produce an interface that feels professionally crafted
- Performance mindset — code splitting, lazy loading, image optimisation, caching strategies, render optimisation
- State management and data fetching patterns — how you think about client-server state boundaries
- Component design — reusability, composability, prop interfaces, and avoiding premature abstraction
- Testing approach — what you test, how you test it, and how you think about test coverage vs. maintenance cost
- Design system thinking — how you build for consistency and scale, not just the current screen
Nice to Have
- Experience building AI-powered interfaces — streaming responses, type- writer effects, token-by-token rendering, inline AI suggestions
- Motion design experience — Framer Motion, GSAP, Lottie, CSS animations, and purposeful micro-interactions
- Contributions to open-source React, Next.js, or UI library projects
- Experience with data visualisation libraries — Recharts, D3, Visx, or similar
- Prior experience at an early-stage startup where the design–engineering boundary was blurred
- Exposure to growth-focused frontend work — landing page optimisation, A/B testing, conversion-focused UI
- Basic understanding of backend architecture — enough to have an informed opinion on API design Stack Next.js · React · TypeScript · Tailwind CSS · Zustand / Redux Toolkit ·TanStack Query · React Hook Form + Zod · GraphQL / REST · WebSockets· Jest · Playwright · Storybook · Docker · GitHub Actions · Framer Motion · Sentry
What We Offer
- Competitive salary with a strong growth trajectory
- High-impact, high-ownership role — you will directly shape the product experience
- Opportunity to build on cutting-edge AI-driven products from the ground up
- Fast execution cycles, minimal bureaucracy, and direct collaboration with founders
- Learning budget for courses, certifications, and tools
- A culture that values craft — we care deeply about what we ship and how it feels
StepsAI · Hyderabad · We build fast, own things fully, and care deeply about what we ship.

Position: React Js Developer
Location: Chennai
Job Specification
- Research, design, implement and manage front end applications Integrating and testing with Restful APIs.
- Identify the areas for modification in existing programs and subsequently developing these modifications
- Writing and implementing efficient code Determining operational practicality
- Work in an agile team Maintaining and upgrading existing systems.
- Delivering a complete front end application from scratch or extending existing application
- Proficiency in React JS and React Native is a must ensure high performance on Mobile and desktop. Writing high quality JavaScript, HTML and CSS.
- Work experience in creating progressive and responsive web applications ensures the best possible performance, quality and responsiveness of the web application.
- Identify and correct bottlenecks and fix bugs.
- Familiarity with RESTful APIs to connect to back-end services and data parsing using XML, JSON.
- Thorough understanding of the responsibilities of the platform, database API, caching layer, proxies and other web services used in the system.
- Configuration, build and test scripts for Continuous Integration environments. Proficiency in Git.
If you posses the above mentioned required skill sets & want to grow along with our fast paced growing Organisation then please share your updated CV.
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. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.
React.js Developer Responsibilities:
- 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:
- 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.
- Experience with browser-based debugging and performance testing software.
- Excellent troubleshooting skills.
Company Information
We are a technology company developing state-of-the-art products in the 3D technology space. We help our clients in the luxury retail space, enhance their online presence and ability to showcase their products to the end customer as life-like.
We are looking for a skilled react.js developer to join our development team. In this role, you will be responsible for developing and implementing 3D React.js concepts and technologies.
You should have working or implementation experience in Three.js JavaScript 3D Library
Job description
- Strong Understanding of Threejs Concepts
- Experience working with Threejs Immersive projects
- Render 3D objects using WebGL & Javascript API in all standard browsers.
- Strong knowledge of mobile web standards
- Proficient understanding of cross-browser compatibility issues and ways to work around them.
- This would be added advantage: experience in setting up Projects with Webpack and the various loaders and plugins.
Mandatory : Javascript 3D, Three.JS, Library
React.js Developer Requirements:
- Bachelors in computer science, information technology, or 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 would be beneficial
Education:
- Bachelor's (Preferred)
• Technical end-to-end design for stories by collaborating with business analyst/product owner, technical architect and clients
• Implement stories end-to-end, which includes Frontend, Backends for Frontend (BFF), Caching and also service orchestration in some cases) using best engineering practices like test-driven development, SOLID principles and consideration of non-functional requirements like performance, scalability, security or cloud readiness (as applicable) at the story level
• Automates testing at unit, module and integration level as needed using tools relevant for the platform (e.g. Jasmine, Jest, Karma, Webdriver.io etc.)
• Focus on quality by implementing best practices like logging, calling out technical debt, meeting KPIs using code quality tools like SonarQube, ESLint (customize and sync with Sonar), Stylelint/Sasslint and so on.
• Hands-on with automating redundant work, like common component structure, both in terms of scaffolding as well as using the right design patterns / creating abstractions.
• Mentor junior engineers in helping review code, guiding on technical decision making
Key Requirements:
• 4-9 years’ experience
• Hands-on knowledge of HTML5, CSS3, JavaScript
• Hands-on experience working with Object Oriented JavaScript (OOJS), JavaScript - and practical uses in building complex interactive experiences, primarily with ECMAScript 2015+. You should be up-to-date with new specifications (different stages), and also, using transpilers like Babel to use features from all stages
• Good understanding of creational and structural design patterns in JavaScript
• Experience working with Single Page Applications (SPA) with universal rendering capabilities.
• Good understanding of React.js, its core principles - lifecycle methods, virtual DOM etc. and at least 6 – 12 months hands-on experience with the same
• Understanding of one-way data flow and the Flux architecture.
• Understanding of stateful (container) vs stateless (presentational) components and how to break down the application page into components
• Core understanding of how React’s state management works out of the box.
• Understanding of different CSS architectures that go hand-in-hand with React.js application development. Pros and cons of component-level CSS vs global and where to apply each
• Thorough understanding of Webpack bundler (version 2+).
• Good understanding of the Web Components standard.
• Hands-on experience with building Progressive Web Apps (PWAs) on any framework.
• Hands-on experience with Frontend Performance Optimization – especially in a React application with respect to resource loading strategy, CPU/Memory profiling on the browser.
• Hands-on experience with test-driven development using Jest or equivalent. Familiar with snapshot testing, code coverage. Experience working with utilities like Enzyme
• Experience using fluid grids, and building responsive/adaptive websites using Bootstrap etc.
• Understanding of SEO and accessibility and making it part of the development workflow
• Moderate to Strong graphics manipulation/optimization skills using Photoshop is a plus.
Responsibilities
- Work closely with the design and backend team to build and develop web applications for our forward-thinking products.
- Design large-scale systems with high complexity to support our high throughput applications.
- Understand how to leverage infrastructure for solving such large-scale problems.
- Develop tools and contribute to open source wherever possible.
- Adopt problem-solving as a way of life - always go to the root cause.
- Develop scalable front-end engineering, for the largest FinTech companies in India who use our product.
- Actively think about improving UX and UI.
- Collaborate with the team to discuss and implement ideas.
- Build responsive, robust, and optimized applications.
- Professional development experience with Angular 10
- At least 1-2 years of JavaScript development experience for web applications.
- Strong eye for design, UI, and UX.
- Passion for front-end development.
- Willingness to learn and experiment with new technologies.
- Should have experience in developing and working on consumer facing web/app
- Proficient understanding of JavaScript libraries and frameworks ReactJS
- Proficient understanding of server side rendering through Next.js
- Proven skillsets in responsive Web UI development for enterprise application using technologies such as HTML5, CSS, JavaScript, JQuery, Bootstrap, React JS Good understanding of Data Structures, Algorithms and Operating Systems
- Should have experience on HTML5/CSS3, Javascript ,Redux, APIs Integration
- 3-4 years of experience in building client side cross platforms javascript apps in Web & mobile.
- Good experience of developing and integrating APIs
- Develop high-quality software design and architecture
- Review and debug code
- Find and address performance issues
- Proficient understanding of Git
What you will do
If you are looking to be part of the early-stage start-up team that is charting the course and solving a key pain point for the CXO, this opportunity is for you. The opportunity will provide you join a company where you can contribute to all aspects of the product definition, product building and solving some key challenges.
- Architect solutions and execution through hands-on development, quality-assurance, and prototyping
- Collaborate with a UX/UI designers and other front-end and middle-tier engineers to design, prototype, and build user interface for complex cloud-based product
- Participate in complete development life cycle activities like design, coding, testing and production release
- Develop and maintain a scalable web and responsive applications
- Exhibit Devops mindset – Work on continuous integration, including provisioning, deployment, testing, and version control of the software
- Mentor new software developers and junior engineers
What you will bring
- Passionate engineer with 5 – 8 years of hands-on experience of developing next-generation user interface with high quality and performance
- Strong desire to learn & evaluate new libraries/frameworks, and share knowledge with others
- Ability to work in a fast-paced and agile development environment
- Sound knowledge of front end standards and practices
- Translating designs and wireframes into high-quality code
- Knowledge of Redux, React.js and its core principles
- Familiarity with RESTful APIs
- Strong proficiency in JavaScript, AJAX, HTML5, CSS3, JSON, including DOM manipulation and the JavaScript object model
- Experience with popular JS frameworks and libraries (React, Angular, JQuery, Ember, Babel, Webpack etc.)
- Experience of building Single-page Web Apps
- Ability to understand business requirements and translate them into technical requirements
- Experience with test automation: TDD, unit/integration/functional testing
- Proficient with debugging and testing tools to troubleshoot and optimize the UI
- Solid understanding of object-oriented design and programming concepts, core JavaScript concepts like scope/closures, the event loop and asynchronous callbacks, promises
Good to have
- Full-stack development experience
- Prior Startup Experience
- Prior experience in developing real-time web applications
- Experience with continuous deployment
- Proficiency with Git/Github
- Experience with GraphQL
Success Factors
- Start-up mindset
- Good problem solving abilities
- ‘Can-do’ attitude
- Prior experience of working with globally distributed teams is an added advantage
- Work with minimal supervision
- Excellent communication skills and being able to work independently or in a full team
Why Join Us
Our team is looking for fast-moving engineers with an entrepreneurial mindset. As a software engineer, you will help grow the platform by identifying new features, products, and business opportunities. You will write and own scalable production-grade code across the platform in collaboration with the small, close-knit and dedicated global development team.
We keep cloud-native concepts close to our heart whenever we design any software component and you will have exciting opportunities to work on new software frameworks, modern tech stack and cloud-native applications using latest cloud technologies.
If you want to feel and see that your contributions matter, have a strong desire to work for an early-stage startup and if you love working in a dynamic, agile, continually improving environment and most importantly, work with good people, come talk to us. If you are excited about the opportunity to build a cool new Cyber Security SaaS product ground-up then lets talk!!










