Senior Frontend Developer - React JS (React 19)

Posted on
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Experience
3 - 7 yrs
Job Location
Pune, India
Vacancy
1
Designation
Senior Front end Developer
Job Type
ONSITE

Job Description

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
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
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
What Were 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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