Jr. Front End Developer

United States Digital Space LLC; Maharashtra; On-site; INR 285,000 - 385,000; Full time

Job summary

United States Digital Space LLC is hiring a frontend engineer to design scalable frontend systems with emphasis on architecture, performance, and maintainability. You will build React/TypeScript apps, create modular components, and optimize data flow between client and server.

You’ll collaborate with backend and product teams, implement advanced performance strategies, and ensure accessibility and code quality across the application.

Qualifications

• 1–3 years of frontend experience.
• Strong React and TypeScript skills with modern build tools.
• Understanding of component architecture, lifecycle, and performance optimization.
• Experience with state management libraries like Zustand/React Query/Redux Toolkit.
• Experience building scalable product applications, not just static sites.
• Familiarity with Next.js SSR/SSG and design systems.

Responsibilities

• Build and maintain scalable frontend apps using React, TS, and Tailwind.
• Design modular components with clear separation of concerns.
• Contribute to frontend architecture — state, data flow, and structure.
• Manage client and server state with modern libraries.
• Optimize performance across the app and reduce re-renders.
• Implement lazy loading, code splitting, virtualization, and pagination.
• Ensure fast UX across devices and networks.
• Collaborate with backend/product teams on data contracts.
• Identify bottlenecks with DevTools, profiling, and Lighthouse.
• Follow accessibility, security, and code quality best practices.

Skills

System design thinking

Performance optimization

Maintainable code

Education

Bachelor's degree in Computer Science or related field

Tools

React

TypeScript

Vite

Webpack

Next.js

Redux Toolkit

React Query

Zustand

Tailwind

Lighthouse

Job description

About the Role

We are looking for a frontend engineer who can build and maintain scalable, high-performance frontend systems for a product. This role goes beyond UI development — it focuses on architecture, performance, and long-term maintainability.

You will be responsible for designing frontend systems that can handle growing data, users, and features without degrading performance or code quality.

Responsibilities

• Build and maintain scalable frontend applications using React, TypeScript, and Tailwind
• Design clean, reusable, and modular components with clear separation of concerns
• Contribute to frontend architecture decisions — state management, folder structure, and data flow
• Manage both client state and server state effectively using modern libraries
• Optimize performance across the entire application:
• Eliminate unnecessary re-renders using memoization and proper component design
• Implement lazy loading and code splitting to reduce initial bundle size
• Handle large datasets efficiently with virtualization and pagination
• Ensure fast, smooth user experience across different devices and network conditions
• Integrate APIs and design efficient data-fetching strategies — caching, pagination, error handling
• Work closely with backend and product teams to define data contracts and improve performance
• Identify bottlenecks using React DevTools, browser profiling, and Lighthouse
• Follow best practices for accessibility, security, and code quality
• Participate in code reviews with a focus on scalability and maintainability

Requirements

• 1–3 years of experience in frontend development
• Strong proficiency in React, TypeScript, and modern build tools (Vite / Webpack)
• Solid understanding of: Component architecture and design patterns, React rendering lifecycle and reconciliation behavior & Performance optimization techniques — memoization, virtualization, code splitting
• Experience with state management — Zustand, React Query, Redux Toolkit, or similar
• Experience building scalable, product-based applications (not just static websites)
• Comfortable with debugging, performance analysis, and browser DevTools
• Ability to think in terms of system design and long-term code maintainability
• Experience with Next.js — SSR, SSG, and performance optimizations
• Experience building or maintaining design systems / shared component libraries

Nice to Have

• Familiarity with monorepo setups (Turborepo, Nx, or similar)
• Basic understanding of backend systems, APIs, and data flow
• Exposure to testing — unit or integration (Jest, React Testing Library, Vitest)

Job Location

Marol, Andheri East

Pay: Up to ₹30,000.00 per month

Ability to commute/relocate

• Marol, Mumbai, Maharashtra: Reliably commute or planning to relocate before starting work (Preferred)

Application Question(s)

• What is your current CTC Per Annum?
• What is your expected CTC Per Annum?
• If selected for this role, how soon can you join? Please specify your notice period, if applicable.

Education

• Bachelor's (Preferred)

Experience

• Front-end development: 1 year (Required)

Work Location

In person