Portfolio

Projects

A few projects I'm proud of - each a story of research, iteration, and measurable impact.

Jan 2026 - present·6 min read
Multi-tenant SaaSPHP / LaravelVue / Inertia

Built a QR-to-reward loyalty platform with a habit loop that brings back 69% of the customers

69%
of registered customers came back more than once
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Jan 2020 - present·6 min read
Multi-brand platformPHP / LaravelConversion funnel

Built the quiz-to-checkout engine behind 10 personalized-diet brands selling in 180 countries

180
countries reached, across ~10 diet brands
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UserWebSocket · nearestFrankfurtnearestchat-ws · Socket.IOMongoDB replica setPSS3-node RS · w=2 · readPreference=nearest4 more regions · independent clustersMontreal3-node RSLas Vegas3-node RSSão Paulo3-node RSSydney3-node RS
Aug-Nov 2023·4 min read
Distributed SystemsMongoDBReal-time

Cut cross-region read latency from ~280 ms to under 10 ms with geo-sharded MongoDB

28×
faster reads for transcontinental users
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dietsquiz · socketpaymentscommerce · HTTPws-middlewareSocket.IO + HTTPeventsdedup · status 90trackingHorizon · 1/mintrackwritepoll 90MetaConversions APITwitter / XConversions APIMailchimpMarketing APIElasticsearchanalytics sinkMauticautomation
Nov-Dec 2020·4 min read
Event PipelineServer-Side TrackingNode.js

Built a server-side tracking pipeline delivering up to ~1M events/day to 5 ad and analytics platforms

~1M
events/day at peak
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next cycleActivesubscriptionRecurring chargevia PrimerRenewends_at += periodGrace + retryends_at += N days, retries++Cancelstop billingcron · ends_at ≤ nowsuccessfailedretrygive up
Mar-Apr 2023·5 min read
SubscriptionsPaymentsPHP / Laravel

Built a Primer-orchestrated subscription billing engine holding 91% recurring-payment success across 50k subscriptions

91%
recurring payment success rate
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