Frontend Developer

Key Responsibilities:

• Build interactive chat UIs (message bubbles, typing indicator, streaming).
• Manage state for conversations, input, loading states.
• Convert designs / wireframes into responsive, accessible UI.
• Optimize performance (lazy load, memoize, avoid unnecessary re‑renders, code split).
• Handle real‑time or streaming data (WebSocket, partial responses).
• Integrate with backend systems (APIs, GraphQL).
• Write unit / integration tests, fix bugs, ensure cross‑browser compatibility.
• Document UI components; collaborate with designers & backend.

Required Skills & Qualifications

• Strong JS (ES6+), React.js (functional components, hooks).
• State management experience (Redux, Context API, etc.).
• Solid HTML5, CSS3, responsive layouts (Flexbox/Grid).
• Familiar with build tools (Webpack, Babel), package managers (npm/yarn).
• Experience with unit/integration testing (Jest, React Testing Library).
• Familiarity with REST / GraphQL; real‑time data / WebSocket is a plus.
• Clean, modular, maintainable code; performance & debugging skills.
• Good communication; team collaboration.

Who We Are

Nudge enables consumer companies to personalize shopper journeys without depending on developer bandwidth. We believe the future of commerce lies in enabling every brand to create dynamic, personalized experiences at scale. Our SDKs power these experiences, letting companies configure UI/UX directly from our dashboard without additional engineering work.

We’re backed by leading global investors and are building a team in Bangalore that thrives on energy, curiosity, and ownership. We value strong opinions held loosely: we love people who care deeply about their craft, but who are flexible and collaborative when building together.

The Opportunity

We are looking for a founding Frontend Engineer with a strong foundation in Javascript and web technologies. In this role, you will design and maintain our Dashboards are web SDKs that are used by consumer apps. You’ll be solving real challenges of scale, performance, and security.

At Nudge, engineers own the product end-to-end. You won’t just receive PRDs to execute on, you’ll play an active role in shaping the product roadmap, influencing technical and product decisions, and ensuring what we build truly serves our customers.

What You’ll Do

• Lead development of our customer-facing interfaces: Dashboard, Chrome Extension, and Web SDK.
• Collaborate with product and design from idea to implementation - owning features end-to-end.
• Write modular, maintainable code that scales across use cases and user types.
• Shape our frontend architecture and tech stack as we scale.
• Continuously improve performance—through bundle optimization, caching, or efficient state management.
• Use TypeScript, React, Next.js, Redux Toolkit, React Query, and browser storage tools (localStorage, sessionStorage, cookies) to build seamless, fast experiences.

What We’re Looking For

• 3–5 years of professional experience in web development.
• Experience building or maintaining SDKs, libraries, or frameworks that ship to external developers.
• Strong understanding of fundamentals, internals, and system design.
• Proficiency in networking (HTTP, WebSockets) and local data persistence.
• Experience working with large language models (LLMs) in production.
• Familiarity with LangChain or Vercel AI SDK.
• Experience with server-driven UI and dynamic component rendering is a strong plus.

WHO YOU ARE

To be successful in this role, you’ll need to have the following skills:

• Love for coding: A fanatic about writing beautiful and scalable code.
• Sense of analytics: Strong analytical and troubleshooting skills. Should be resourceful, innovative and inventive.
• Dynamic: Should be comfortable in dealing with lots of moving pieces. Have exquisite attention to detail, and are comfortable learning new technologies and systems. 
• Team player: Knack for influencing without being authoritative. Pitch in wherever the team needs help, from writing blog posts to supporting customers.
• Accountability: High sense of ownership for your code and relentlessness to deliver projects with high business impact. 

KEY QUALIFICATIONS

• BE/BTech in Computer Science or related field. 
• Minimum 3+ years of UI/Frontend development and a strong understanding of building complex layouts using JavaScript, CSS and HTML.

KEY SKILLS

• Strong computer system analysis and design skills in current methodologies and patterns including vanilla JavaScript, some experience with ReactJS, Redux, React Native, Webpack, and Typescript or similar library/tools.
• Obsessed with WPO (Web Performance Optimization) and web/mobile performance analysis.
• Experienced with web standards and protocols such as HTTP, DNS, TCP/IP, and socket APIs in general.
• Familiar with web security, SEO, accessibility and internationalization.

Roles and Responsibilities :
- To  analyze business requirements, prepare design and implementation recommendations and estimate development effort
-  Collaborate with cross-functional teams to define, design, and ship new features
- Lead or participate in design reviews, code reviews and architecture evolution discussions
- Unit-test code for robustness, including edge cases, usability, and general reliability
- Work on bug fixing and improving application performance
- Continuously discover, evaluate, and implement new technologies to maximize development efficiency

Skills Required :
- Experienced with front end programming language with React JS.
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
- Thorough understanding of React.js and its core principles.
- Experience with popular React.JS workflows (such as Flux or Redux).
- Knowledge of modern authorization mechanisms, such as JSON Web Token.
- Familiarity with modern front-end build pipelines and tools.
- Familiarity with code versioning tools (such as Git, SVN, ).
- Candidates with Good communication Skills. 

Responsibilities:

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize application for maximum speed and scalability
• Collaborate with other team members

You’ll be a good fit if you:

• Have 1+ years of experience developing user facing features
• Have a deep understanding of basic UI/UX/design principles
• Are self-motivated and can solve problems independently
• Experience leveraging web technologies like HTML, CSS, and Javascript(ES6)
• Experience using the latest CSS layout methods such as Flexbox and Grid
• Experience with CSS preprocessors like Sass or LESS
• Knowledge and hands-on experience with Node.js ecosystem and leveraging Javascript libraries / frameworks such as React, Angular or Vue
• Experience with testing frameworks (Jest) and writing unit tests
• Competency in building responsive layouts
• Practical knowledge of performance optimization techniques
• Collaboration in a GitHub repository with many contributors and comfortable with workflows like code reviews, forking, pull requests, etc.