overhauled payment system in a 3-member team using react and hasura graphql. cut provider charges by 50% for 20M+ customers across 192 clinics. zero downtime.

built standalone pay app with custom hasura actions for secure login and payment processing. concept to production in 3 months.

processed $10K+ in transactions across 15+ partner clinics through secure payment flows.

migrated legacy calendar to modern architecture with custom functions and indexes. 2x faster appointment fetching with 100% feature parity.

built responsive UI with FullCalendar library. pixel-perfect from figma mockups. 25% higher engagement across 100+ clinics.

platform-wide fuzzy search using GIN indexes and pg_trgm extension. 60% faster response times.

hired as flutter engineer, pivoted to full stack on day 1. joined 0→1 phase in a team of four.

became sole developer and frontend maintainer. maintained solidity smart contracts, next.js frontend, and subgraphs.

disbursed $2M to builders across 20,000+ users.

built telegram bot from scratch with webhooks and pub-sub architecture. event-driven and periodic notifications.

zapier integration with serverless API for data pipelines to google sheets. most requested feature, still works today.

maintained custom graph node for subgraph on optimism.

AWS lambda for serverless, elastic beanstalk for graph node, cloudwatch for debugging.