• Built and maintained scalable backend systems for our $2M ARR digital business card platform with 99.99% uptime.

• Developed an event-driven email automation engine using Celery & GCP, increasing engagement by 36%.

• Designed an adaptive notification system delivering personalized messages, improving relevance by 40%.

• Implemented a secure event ingestion pipeline for Amplitude, cutting analytics data loss by 97%.

• Reduced logging overhead by optimizing Datadog filters, saving 300+ EC2 hours and $12K/year in monitoring costs.

• Cut API latency by 42% through query tuning and custom Django optimizations (P95 < 150ms).

• Led the migration of our real-time analytics infrastructure from Elasticsearch to Apache Pinot, cutting query latency by 97% (25s → 600ms).

• Engineered and deployed asynchronous processing pipelines to generate high-throughput email reports for over 200K products, resulting in increased customer engagement.

• Integrated Azure AD and Salesforce, contributing to $300K+ in annual enterprise revenue.

• Built a usage-based incentive engine with Stripe, reducing churn by 34%.

• Scaled bulk workflows by 12x through batched inserts and database tuning.

• Mentored 3 backend interns, conducted 70+ technical interviews, and improved onboarding documentation to streamline hiring.

• Built REST APIs for bulk operations (CSV export, soft delete), reducing action time by 40%.

• Developed a real-time IP threat detection system (Tor, VPN, bots) to enhance analytics security.

• Increased test coverage to 93% by writing unit tests and fixing legacy bugs.

• Built modular React.js dashboard components, reducing time to track KPIs by 10x.

• Developed 15+ production-grade screens for a React Native delivery partner app.

• Improved UI/UX workflows to double efficiency for delivery partners.