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Zahaan Khan
Mid-Level Full-Stack Software Engineer specializing in ads transparency platforms
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About
TikTok engineer (4 years) who built and owned multiple ad transparency platforms used by internal teams and advertisers worldwide. Strong full-stack profile spanning Next.js/TypeScript + Redux frontends, a secure/optimized BFF layer, and event-driven backend workflows (Kafka, retries/DLQ, Redis idempotency) with heavy emphasis on observability and performance; cites a 20% moderation efficiency gain on a modernized legacy tool.
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Key Strengths
- Shipped and owned ad transparency platforms at TikTok (internal + customer-facing) end-to-end
- Built BFF layer with auth, rate limiting, caching, pagination, and downstream aggregation
- Redux-based normalized state management for large datasets and deep drilldowns
- Modern React performance techniques (SSR, Suspense/streaming, memoization, lazy loading)
- Modernized legacy moderator app improving moderation throughput by 20% and achieving CAST 4.5
- Backend reliability patterns: Kafka workflows, exponential retries, DLQ alerting, Redis idempotency
- Observability-driven engineering (Grafana metrics, Kibana event tracking) and performance tuning
- Database/query performance optimization via cursor-based pagination and composite indexes
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