Case studies, not portfolio cards — each one covers the problem, the constraints, the decisions I made, and what actually changed.
NayaOne · 2023–2024
Refactored 80+ GraphQL queries with raw SQL joins and batched cross-database resolvers, cutting response times 70% — 250ms to 75ms — for 300+ daily users.
Medical Avenue · 2026
Inherited a React Native patient app from a departed agency team, traced a memory profile that climbed past 1.2GB and got the app killed on real devices to the navigation architecture itself, and rebuilt it to a stable ~350MB — verified on a 2018 Android with 3GB of RAM.
Medical Avenue · Dec 2025 – Jan 2026
Built a source-grounded RAG assistant for the medical-tourism domain — solo, before any contract existed. An ingestion pipeline over 264 interview videos, 2 books, and 7 papers; pgvector retrieval with MMR; and answers that cite their sources or don't answer at all.
NayaOne · 2025
Built the product module behind the FCA–NVIDIA AI Sandbox launch in one week — full-stack, shipped dark behind feature flags on a live platform serving 80+ institutions, switched on for a fixed public launch date.
NayaOne · 2024–2025
Built an automated session-analysis system that compressed a 50–100 hour UX audit into 1.5 hours, exposed a 70% vendor-onboarding abandonment rate, then led the 5-person redesign that cut it below 5%.
Medical Avenue · 2026
Designed a secure file backend on S3-compatible storage — presigned upload → confirm → download → delete, a default-deny access registry, and append-only audit logging enforced by PostgreSQL triggers.