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Shashank Nawathe
Senior Front-End Engineer specializing in React, micro frontends, and GraphQL
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About
Frontend engineer with Walmart Labs experience who contributed to the React Query (TanStack) open-source ecosystem by reproducing and helping fix a tricky cache invalidation edge case via a detailed GitHub issue and merged PR. Led measurable runtime performance improvements on a large B2B dashboard (D3.js), using memoization, component refactors, web workers, and virtualization to cut render time ~60% and eliminate UI freezes, and standardized data-fetching patterns to reduce data-related bugs ~30%.
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Key Strengths
- Deep debugging of complex cache invalidation edge cases in React Query/TanStack Query
- Effective open-source collaboration: created minimal repro, filed detailed GitHub issue, and shipped merged PR with tests
- Performance optimization on data-heavy dashboards (D3.js): reduced render time ~60% and improved response to <500ms
- Strong measurement-first performance approach (profiling, bottleneck identification, high-impact optimizations)
- Architectural pragmatism: avoided brittle core changes and implemented custom key serialization/middleware aligned with library patterns
- Proactive ownership in unstructured environments: standardized React Query data-fetching patterns, reducing data bugs ~30%
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