$ ls ~/projects --selected
Selected projects
The work I'd point to if you asked “what have you actually built?” — platforms under real load, real deadlines and real money on the line.
TradeBid — platform replacement & European expansion
Drive Inc
Replaced a heavily customized third-party auction system with an in-house platform — new API, frontend and database stack — delivered in parallel with the live system, kept synchronized without access to the legacy codebase or infrastructure. Zero-downtime migration via Debezium CDC and event-driven patterns preserved real-time bidding throughout. Now expanding across five European markets with white-label commercialization.
↓ 0 downtime during migration5 markets · white-label ready
Black Friday Brazil — peak-demand scalability
DecWS
Led a team of 10 engineers delivering infrastructure for one of Brazil's biggest retail traffic events. The system held 170,000+ concurrent live users — large-scale reliability under intense, unforgiving load.
170,000+ live usersteam of 10 · peak-demand event
Global mobile app — backend optimization
Daily Apps / Sticker Maker
Backend and infrastructure for a global consumer product with strict performance and cost constraints. Migrated the serverless backend to a more efficient architecture — 90% cost reduction — and designed a high-availability image processing API with Varnish Cache, improving app load time 8% while cutting infrastructure cost another 10%.
-90% serverless spend+8% load time · global scale