
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
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⭐ Experience: 6+ Years
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⭐ Work Mode: Hybrid
⏱️ Notice Period: Immediate Joiners
(Only immediate joiners & candidates serving notice period)
We’re hiring a skilled UI Developer with strong expertise in React.js, HTML, CSS, and JavaScript to develop high-quality, scalable user interfaces for modern web applications.
💫 Requirements:
✅ Strong proficiency in JavaScript, HTML5, CSS3, and React.js
✅ Experience building responsive, accessible, and pixel-perfect UI components
✅ Hands-on knowledge of UI performance optimization and best practices
✅ Experience working with REST APIs and modern front-end build tools
✅ Strong understanding of component-based architecture and reusable UI patterns
✅ Good attention to detail and passion for user-centric design
Responsibilities
- Take product ideas from ideation to implementation.
- Collaborate with Product and Design to create robust and usable features.
- Take ownership of the architecture for best performance and usability.
- Lead engineering discussions to ensure the best practices, maintainability and security of the application.
- Participate in design and code reviews.
- Lead and mentor the team of developers, to drive business objectives.
We are looking for
- 4+ years of experience building quality applications.
- Proficient in client-side JS frameworks such as React.js
- Passion for best design and coding practices and a desire to develop new bold ideas.
- Strong customer focus, ownership, and self-drive.
- Experience in planning, designing architecture and leading teams.
· JavaScript, Typescript
· Any UI Framework (web components) - primarily React.js
· Rxjs
· State Management frameworks - redux
· Design Patterns
· Jest / WTR for testing
· Playwright, cypress - functional tests (good to have)
Requirements
- 2.5+ years of experience in React JS and Redux
- Expert in React.j, ideally using TypeScript language extensions
- Good understanding of JavaScript Design Patterns
- Good experience writing front-end test cases
- HTML5, CSS3 and Responsive web design are mandatory
- Exposure to Scrum methodology and XP technical practices such as unit testing, pair programming, test-driven development, continuous integration or continuous delivery
- Self-motivated, fast learner, detail-oriented, team player and a sense of humour
- Should have experience with Payment(US) Integrations
- Should have experience with Ecommerce/ERP Connectors
- Gathering and evaluating user requirements in collaboration with product owners and engineers.
- Ensuring design consistency with the client’s development standards and guidelines.
- Ensuring high performance on mobile and desktop and fluency in mobile-based information architecture and design.
- Creating visually appealing experiences that feature user-friendly design and clear navigation.
- Guiding and maintaining developer teams and best practices.
What you need to have:
- Hands-on experience in building Web User Interface (UI) using HTML/HTML5, CSS, SCSS, Advance Javascript Libraries, Jquery, Bootstrap and UI frameworks like Node.js React, redux/angular.js/ backbone, Hapi.js.
- Experience in creating ‘Responsive’ and ‘Adaptive’ web-sites using HTML5 and CSS3 targeting desktop, tablet, and mobile devices.
- Proficiency with Angular 2/4/5/6/7/8
- For UI developer Job- must have good understanding of AJAX and JavaScript Dom manipulation Techniques
- Strong expertise with HTML, CSS, and writing cross-browser compatible code
- Experience in JavaScript build tools like grunt or gulp
- Expert in any one of the modern JavaScript MV-VM/MVC frameworks (AngularJS, JQuery, NodeJS, GruntJS, ReactJS)
- Strong understanding of front-end coding and development technologies.
- For UI developer job- must have the ability to provide SEO solutions for websites
- Experience with building the infrastructure for serving the front-end app and assets.
- Sound knowledge of IT concepts and the latest trends.
- Strong verbal and written communication and interpersonal skills
Day-to-day responsibilities:
Fulfil’s software engineers develop the next-generation technologies that change how millions of customer orders are fulfilled by merchants. Our products need to handle information at a massive scale. We're looking for engineers who bring fresh ideas from all areas into our technology.
As a Front End software engineer, you will work on the ReactJS powered user interface used by Fulfil merchants to manage their back-office operations. This is mission critical software and your primary focus will be on developing user interface components and implementing them following well-known React.js workflows. You will ensure that these components and the overall application are robust and easy to maintain. In this role, you will be collaborating closely with the rest of the team working on different layers of infrastructure in an international environment. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality are important.
What You’ll Do:
- Collaborate with a small yet extraordinarily talented team of engineers to implement front-end technologies
- Develop new user-facing features using React.js and React Native
- Work closely with the Design and Product teams to translate complex technical workflows into delightful user experiences
- Define how Fulfil builds user interfaces and ensure that we’re utilizing and keeping up with modern web standards
- Continually test, measure, and iterate on the results of your work in the spirit of continuous improvement
- Write clean, reusable, and well-tested front-end code
- Help to bridge the responsibilities of the Product and Engineering teams, spending time with both on the way to launching new products
- Architect efficient and reusable front-end abstractions and systems that drive complex web applications
- Create reliable and type-safe applications with Typescript
- Build and contribute to open source projects
- Build reusable components and front-end libraries for future use
- Optimize components for maximum performance across a vast array of web-capable devices and browsers
We’re Looking for Someone With:
- 5+ years of experience as a front end engineer
- Experience in building large-scale web applications in a fast-moving team environment
- A strong understanding of UX and UI design standards
- The perfectionist’s touch on a pragmatist’s deadline: you strive for pixel-perfection and intuitive functionality
- Strong proficiency in JavaScript (2-4 Years of experience), including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles, with experience in popular React.js workflows
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc
- Experience with popular testing frameworks, like Jest, Cypress, and Testing Library.
- The ability to bring any design to life with HTML and CSS, with cross browser compatibility and accessibility
- Smarts, humility, communication skills, and equal willingness to teach and learn
- Familiarity with RESTful and GraphQL APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Experience in developing large client side JavaScript applications
- Familiarity with code versioning tools like GIT
- Experience with Javascript testing tools and test automation
Nice to Haves:
- Prior experience at a growth stage Internet/Software company
- Demonstrated work beyond the front-end, experienced in integrating with a wide array of back-end technologies and services (e.g. experience with Python, AngularJS)
- Experience developing large client-side applications and optimizing them for performance
- You can straddle client and server development, creating APIs that drive web apps
- You understand the intricacies of timezones
- Web optimization, performance tools, and load testing
- You maintain or contribute to an open-source project
Responsibilities:
- Build React Native apps from scratch that'll be used globally.
- Architect App infrastructure systems like caching, state manager, common validation framework, etc.
- Launch the apps in different app stores like Apple, Google, etc.
- Create custom reusable Component Library
- Create data visualizations like charts, tables, dashboards, etc.
- Write well tested, beautiful, performant and bug free code.
- Thrive in a collaborative team environment and work with challenging timelines.
- Establish and advocate front-end coding guidelines.
- Mentor team members and help resolve any critical blockers.
Requirements:
- A self-driven, hard-working Frontend engineer with an eye for detail.
- Bachelor's Degree or equivalent in Computer Science
- Minimum 4 years of overall experience with expertise in working in React Native, Redux and TypeScript
- Strong understanding and knowledge of Styling
- Experience in writing native code for Android and iOS
- Strong debugging skills for Android and iOS.
- Experience in launching apps in various App Stores.
- Experience with GraphQL is a plus.
- Familiarity with modern front-end build pipelines and tools
About Us
Spotnana is a stealth startup that is building the technology stack to solve the experience, trust, and transparency challenges that legacy players in a $1.8 trillion industry refuse to. We were told it can’t be done - and now we’re doing it.
Based in the San Francisco Bay Area, our founding team consists of veterans from Google, Amazon, Twitter, Airbnb, Expedia, ThoughtSpot, FreshDesk, Goldman Sachs, Oyo, SAP, and Cohesity
Join us to find out what Silicon Valley investors and early backers of Airbnb, Amazon, Facebook, LinkedIn, Brex, Palantir, Revolut, and Snowflake see in our mission.
Let's explore creating one of the best pieces of work ever made, together.
Our client is India's first one-stop-shop for corporate benefits. They create mutually rewarding relationships between employers and businesses by managing corporate discounts. They enable organizations to incentivize their employees beyond just salary by providing benefits related to Travel, Entertainment, Dining, Education, Shopping and many more spheres of life.
Founded in 2014, this Gurugram based employee rewards platform is led by young founders who are UCLA alumni with experience in companies like Microsoft US, Oracle, Symantec, Amazon, and Reliance. They've partnered with over 10000+ brands across dining, shopping, entertainment, wellness and many more providing exclusive employee discounts, brands like CCD, Samsung, Lifestyle, Flipkart, PVR Cinemas, Zoomcar, OYO, Lifestyle, Mother's Pride, Max Healthcare and more. Our client is leading the $2 billion rewards market in India with 250+ corporate clients including giants like Concentrix, EY, DXC and Mphasis, and they've raised $2 million to date from prominent VCs like GrowX Ventures, Sprout Ventures, and Axilor Ventures.
As a Software Engineer - VP Front End, you will be building world-class websites using JS frameworks.
What you will do:
- Creating modern flat UI.
- Development of the front-end of our application and our public websites.
- Testing the website to ensure it is working.
- Taking ownership of the code your write & features you build.
- Pioneering product ideas, participating in the design and implementing them.
- Strengthening and improving the architecture of our front-end.
- Strengthening and improving development and releasing processes within the team.
- Collaborating with the team and communicate effectively.
What you need to have:
- Angular/ Ember/ Backbone preferred but someone with strong JS fundamentals is also desired
Skills Required:
- Experience in developing front-end applications at scale.
- Strong knowledge and experience in HTML, CSS and JavaScript.
- Understanding of cross-browser compatibility and accessibility standards. (W3C Guidelines)
- Expert knowledge in Bootstrap and responsive Design.
- Experience of node JS/ React JS/Angular JS is preferred.
- Excellent analytical and problem solving skills.
- Knowledge of high-level programming concepts like promises, data-binding.
- Knowledge of JavaScript design patterns is a plus.
- Knowledge of Server side is a plus.
Experience: 2 to 7 years










