Senior Frontend Developer - React JS (React 19) (Pune)

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 : Robust 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 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 ________________________________________ Note- Please apply via our official careers portal only, as applications sent directly to executives may not be considered. Apply on Kit Job: kitjob.in/job/4n5zgx