Senior Frontend Developer - React JS (React 19)

India·Punesenior

EngineeringFrontend Developer

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Quick Summary

Key Responsibilities

Detail React 19 : Strong hands-on experience with React 19 including concurrent features, transitions and the latest hooks patterns Next.js 15 :Production experience with Next.js 15 — App Router,

Technical Tools

EngineeringFrontend Developer

1 Sr. Resource: Frontend

• Required skills:

o React 19

o Next.js 15

o TypeScript

o Zod

o Mantine v9

o Custom Hook & State Architecture

o REST API Integration

• Preferred skills:

o Azure

o Authentication & Security

o CI/CD Pipelines

Based on above skill sets:

Key Responsibilities

Build and maintain scalable, production-grade frontend applications using React 19 and Next.js 15
Write fully typed, maintainable code in TypeScript across all layers of the frontend stack
Define and enforce runtime data validation using Zod for API responses, form inputs and shared data contracts
Develop rich, accessible UI components and layouts using Mantine v9, including theming, responsive design and component customisation
Design and implement custom hooks and state architecture patterns that promote reusability, testability and separation of concerns
Integrate frontend applications with backend REST APIs — handling authentication flows, error states, loading states and data caching
Collaborate with backend engineers to define API contracts and ensure type-safe end-to-end data flows
Participate in code reviews, technical planning and sprint ceremonies
Maintain frontend documentation, component libraries and coding standards

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Required Skills & Experience

Skill: Detail

React 19 : Strong hands-on experience with React 19 including concurrent features, transitions and the latest hooks patterns

Next.js 15 :Production experience with Next.js 15 — App Router, Server Components, Server Actions, routing and rendering strategies (SSR, SSG, ISR)

TypeScript : Advanced TypeScript proficiency — generics, utility types, discriminated unions, strict mode

Zod : Experience using Zod for schema definition, validation and type inference across API boundaries and forms

Mantine v9 : Hands-on experience with Mantine v9 component library — theming, custom components, form integration and responsive layouts

Custom Hook & State Architecture : Proven ability to design clean custom hook patterns, manage complex local and global state, and structure frontend codebases for scale

REST API Integration : Solid experience consuming REST APIs — handling async data fetching, error boundaries, optimistic updates and token-based authentication

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Preferred Skills & Experience

Skill : Detail

Azure : Familiarity with Azure Static Web Apps, Azure CDN, Azure DevOps or Azure AD / Entra ID for frontend hosting and identity

Authentication & Security : Working knowledge of OAuth 2.0, JWT handling, secure token storage, PKCE flows and protecting frontend routes

CI/CD Pipelines: Experience setting up or maintaining frontend CI/CD pipelines using GitHub Actions, Azure DevOps or equivalent — including build, lint, test and deploy stages

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What We're Looking For

A frontend engineer who thinks in systems — not just components
Strong understanding of web performance, Core Web Vitals and accessibility (WCAG) fundamentals
Comfortable working in an Agile / Scrum environment with regular releases and evolving requirements
A collaborative team player who engages proactively with designers, backend engineers and product stakeholders
Attention to detail in both code quality and visual output

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Note- Please apply via our official careers portal only, as applications sent directly to executives may not be considered.