Software Engineer (Full Stack)

• Owned end-to-end development of Bevy Affiliate, a Shopify affiliate platform serving 200+ stores. Replaced full-ledger balance scans with a denormalized balance field updated per transaction and a nightly reconciler that recomputes from the ledger, cutting reads from multi-second to sub-100ms while keeping correctness self-healing within 24 hours. • Rebuilt the Frequently Bought Together pipeline for Bevy AI Search as a per-shop fan-out with two-phase processing: batched order ingestion into pair aggregates with Mongo transactions for idempotency, followed by async Typesense sync with per-document status tracking. Supports shops with 500K+ orders with fail-loud batch recovery. • Rebuilt payment and refund processing for Credit Charge, a B2B invoicing app integrated with QuickBooks Online. Moved from synchronous webhook handling to async with transaction-level deduplication and per-customer locking that serializes writes per customer while preserving cross-customer parallelism. Designed the refund flow to correctly rebuild QBO invoices from current paid/refunded line-item state. • Built the full billing lifecycle for QuotePilot, a custom-order management app (subscription, paywall, coupons, trials, uninstall cleanup). Led a UX overhaul across orders, purchase orders, and reviews, and built a reusable type-safe resource table with URL-synchronized state now used across the app. • Cut page loads from seconds to sub-second across 10K+ daily orders on Bevy Affiliate by adding indexes on hot paths, Redis caching, and replacing N+1 loops with GROUP BY queries.