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Senior Frontend Engineer – Chat SDK Lead
Job Title: Frontend Developer
Location: Jaipur
Experience: 5–10 Years
Must Have skills: React 19 (Latest version), ShadCN, Tailwind CSS, Typescript, Tanstack Query
Role Summary
We are looking for a Senior Frontend Engineer – Chat SDK Lead to own a React-based component library powering AI chat interfaces across the organization. The role involves technical ownership of the SDK, release management, real-time streaming capabilities, testing, and direct collaboration with consumer engineering teams.
Mandatory Skills
• 5+ years of hands-on experience building and shipping React component libraries or SDKs consumed by multiple teams.
• Strong expertise in TypeScript, including generics, discriminated unions, strict mode, and declaration emit.
• Strong experience with React and modern frontend architecture.
• Hands-on experience with SSE/streaming protocols and real-time application development.
• Strong understanding of AbortController lifecycle and cancellation patterns.
• Experience with real-time state management using React Query, useReducer, Context, or equivalent approaches.
• Experience designing and maintaining public APIs/component libraries with a focus on backward compatibility and extensibility.
• Hands-on experience with release management, including Semantic Versioning (semver), changelogs, breaking-change management, and monorepo tooling.
• Experience with Turborepo, Changesets, or equivalent monorepo/release management tools.
• Ability to lead technical discussions with product/engineering teams, negotiate API contracts and technical trade-offs, and prepare migration documentation.
• Strong experience with automated testing for complex frontend/public API surfaces.
Preferred Skills
• Experience building AI/LLM chat interfaces, including streaming completions and tool-call rendering.
• Experience with React 19, including Server Component boundaries and "use client" patterns.
• Experience with multi-model/provider integrations or AI gateway abstractions.
• Experience with Storybook, Biome and tsdown.
• Experience with TanStack React Query.
• Exposure to OpenAI SSE and AG-UI/custom streaming events.
• Experience with local-first storage and client-side data eviction strategies.
• Experience with Portkey AI Gateway or similar multi-provider abstraction layers.
Tech Stack
TypeScript 5.7 | React 19 | tsdown | Turborepo | Biome | Storybook 10 | TanStack React Query | SSE | Changesets | Private npm Registry
Key Responsibilities
• Own the technical direction and architecture of the Chat SDK.
• Design and maintain streaming interfaces and real-time state management.
• Handle complex streaming scenarios including tool-call correlation and provider-specific events.
• Own SDK release lifecycle, versioning and breaking-change coordination.
• Establish and maintain comprehensive automated test coverage.
• Work directly with consumer teams on integration, troubleshooting, API contracts and extensibility.
• Create migration guides and technical documentation for SDK consumers.
Work arrangement
No
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