- Delivered 2 analytics platforms for US-based clients with 145 ms average query latency using ClickHouse, analytics engine, repeat-device identification, duplicate-event prevention, and Stripe seat-based subscriptions supporting 11+ seats.
- Reduced initial-route JavaScript bundle size by 86% (1.43 MB to 200 KB, uncompressed) and improved Lighthouse LCP from 3.2 s to 1.9 s by replacing a heavyweight preview library with an iframe-based React-to-HTML solution.
- Built a username-availability API sustaining 8,000 requests/min at 40–50 ms response times in load tests using Bloom filters and Redis hash maps to reduce database lookups.
* Cut GitHub Actions build time by 40% (3 min to 1 min 48 s), saving about 36 min weekly across 26 production builds using Docker layer caching, multi-stage builds, and modern JavaScript tooling; achieved an 80% cache-hit ratio.
Full Stack Engineer Internat
Oruphones
2024
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2024
- Increased reported search click-through rate by 65% over 30 days by re-engineering MongoDB location-search aggregation pipelines and implementing click-based location reranking.
- Processed 1,150+ devices through a 20 stage verification pipeline using IMEI checks, geolocation, and server-side APIs standardized resale estimates across 100+ models using 8–10 device-condition and market-value metrics.
- Reduced storage costs by up to 95% for abandoned or unauthorized uploads using temporary Amazon S3 storage, bucket lifecycle expiration, and transfer of finalized images to permanent storage.
- Architected phone listing pages, database schemas, and REST APIs, contributing to a reported 25% increase in organic clicks over comparable 30-day periods and reported engagement time rising from 1.3 s to 4–5s.
- Reduced search-query execution time by 66.7% (600 ms to 200 ms) by optimizing database queries, migrating from Prisma to Drizzle ORM, and improving query execution and indexing.
- Engineered persistent, horizontally scalable messaging for one-to-one and group chats using raw WebSockets, PostgreSQL, and Redis Pub/Sub, integrating Zoom SDK calls, reconnection, unread counts, read receipts, and delivery acknowledge.
- Migrated legacy React.js and EJS websites to Next.js using SSR, SSG, and CSR, increasing daily requests from 1,000–2,000 to 4,000–5,000 while improving SEO and Core Web Vitals through lazy loading.