What I shipped
- Designed and implemented a Go saga-based inventory ingestion service that keeps DynamoDB and OpenSearch consistent via compensating rollback, using DynamoDB conditional-write distributed locks to serialize 3.9M+ concurrent writes across 7,800+ manufacturers at 0.3 ms avg latency and p99 under 5 ms.
- Built a Python FastAPI control plane on ECS Fargate, ALB host-header routing, CodeBuild, and Route53 that provisions per-branch ephemeral environments — turning multi-hour manual setup into a self-service API and driving 7× growth in active developers.
- Owned the public application API: designed Google AIP-compliant batch endpoints and the v2 redesign over PostgreSQL, Aurora, and OpenSearch, serving 100K+ items/hour at sub-100ms p99.
- Designed ERP financial-workflow integrations — credits & returns, goods receipt, and delivery tickets — over Workato webhooks on a byErpId lookup pattern, with automatic partial-quantity line splitting across SAP, JD Edwards, and Eclipse.
- Led Product Finder 2.0: a config-driven weighted soft-ranking engine for +23% accuracy; parallelized OpenSearch fetches with goroutines to cut latency 10 ms → 2 ms; Mixpanel metrics at every ranking step.
- Designed Nexus and Kronos — the platform's async-task and centralized-cron services on SQS, ECS, and WebSocket with DLQ-backed retries and queue-depth autoscaling.
Stack
Python 
Go 
Django 
FastAPI 
PostgreSQL DynamoDB 
OpenSearch 
Redis AWS Python Go Django FastAPI PostgreSQL DynamoDB OpenSearch Redis AWS Case studies from this role
Case study
Iris
Per-branch ephemeral environments — 1,567 builds, 88% end-to-end success, 7× DAU growth.
Case study
Argus
Saga + per-SKU locks behind 3.9M+ writes across 7,800+ manufacturers.
Case study
Ariadne
Product Finder 2.0 — config-driven weighted soft-ranking, +23% accuracy, 10 ms → 2 ms fetches.