Frontend Developer

About the Job

Codewalla is seeking a detail-oriented Front-End Developer with expertise in React, Next.js, and TypeScript to join our growing team in Chennai, Tamil Nadu, India. You'll build and optimize high-performance, modular user interfaces for modern e-commerce and web applications. Collaborate with designers, backend developers, and QA to create responsive, accessible, and scalable front-end solutions. The ideal candidate has strong Next.js configuration experience, a deep understanding of JavaScript ES6+, and practical knowledge of API integration using tools like GraphQL Playground, GraphiQL, and Postman. Passion for clean coding, performance tuning, and cross-browser consistency is essential, along with experience with SCSS and Tailwind CSS. Magento headless architecture experience is a plus.

What will you be working on?

1. Front-End Architecture & Frameworks
   • Build responsive, modular, and accessible UIs using React /Next.js.
   • Develop using TypeScript and ES6+ standards, implementing reusable components and efficient state management.
   • Work with custom Next.js configurations including routing, middleware, SSR (Server-Side Rendering), and SSG (Static Site Generation).
   • Implement project-specific logic using App Router and dynamic routes.
   • Understand Node.js fundamentals to support universal JavaScript applications.
   • Utilize npm (or yarn) for dependency management and scripting custom build commands.
2. Styling & UI Design
   • Build scalable and maintainable UI architecture using SCSS and Tailwind CSS.
   • Design pixel-perfect and mobile-first layouts, ensuring cross-browser and cross-device consistency.
   • Customize Tailwind config to match design system and branding needs.
   • Ensure accessibility compliance using semantic HTML and ARIA roles.
3. JavaScript (ES6+) & TypeScript Expertise
   • Deep understanding of ES6+ features including let/const, arrow functions, promises, async/await, destructuring, spread/rest, template literals, and default/rest parameters.
   • Use advanced functions such as map, filter, reduce, forEach, every, some, find, and flatMap effectively.
   • Leverage TypeScript types.
   • Maintain code quality through modular programming.
4. API Testing & Tooling
   • Use GraphQL Playground/Postman and GraphiQL for exploring GraphQL schemas.
   • Build and test reusable GraphQL fragments, variables, and nested queries in frontend integration.
5. Performance Optimization & Testing
   • Improve Core Web Vitals (LCP, FID, CLS) using lazy loading, code splitting, and image optimization.
   • Configure Next.js for performance tuning via custom middleware, image optimization, and static asset management.
   • Use BrowserStack for cross-browser testing and debugging.
   • Track and fix UI regressions proactively through QA feedback.
   • Understand Webpack for custom frontend build pipelines.
   • Support version control and collaboration using git and Bitbucket workflows.
   • Participate in Agile ceremonies.

What should you have?

4+ years of front-end development experience in the E-commerce domain using React and Next.js. Solid knowledge of JavaScript (ES6+), TypeScript, HTML5, CSS3, and SCSS. Able to work with Tailwind and SCSS. Experience configuring Webpack, and Next.js middleware, Knowledge of node, npm. Strong collaboration and communication skills. Bonus: Experience with Figma or other design tools for developer handoff. Bonus: Magento PWA with Next js experience.

Why work at Codewalla?

• Build for scale: Work on products that get investor love and scale to global audiences
• Be part of AI-native product development: Integrate AI tools into how we design, build, and ship
• Global exposure: Directly collaborate with US-based startups, VCs, and product teams
• Learn fast: Small, elite teams with zero bureaucracy and high ownership
• See your impact: Every decision you make will shape user experience and business outcomes

Codewalla, a product studio based in New York with engineering teams in Chennai, India, provides strategic technical guidance to help startups build using a Modular Product Building approach. We focus on delivering scalable solutions for founders.