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Sandrei Mangubat

@sandreimangubat

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Full-stack developer at QuickNeeds who shipped three React Native apps and their shared backend.

Philippines

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At QuickNeeds, I architected and shipped the Customer, Merchant, and Rider apps for iOS and Android. They’re live on the App Store and Google Play, backed by a shared Express.js, TypeORM, and PostgreSQL API.

I built real-time order tracking, rider background location updates, and multi-device push routing. I also shipped merchant tools for order intake, inventory, customer management, analytics, and receipt printing, and onboarded 40+ verified merchants.

As a freelance full-stack developer, I’ve delivered iOS and Android apps for clients in the US, Asia, and the Philippines, backed by Node.js, Express.js, and Python services. I’ve also worked on data-heavy dashboards, offline-first mobile patterns, and complex form and workflow apps.

Experience

Work history, roles, and key accomplishments

Current

Founder & Full-Stack Developer

Current

QuickNeeds

Jan 2025 - Present (1 year 9 months)

Architected and shipped three React Native/Expo apps (Customer, Merchant, Rider) from zero to production on iOS and Android, handling builds and store releases through EAS. Built real-time order tracking, rider background location updates, and multi-device push routing with per-user device token registration.

React Native Expo EAS Build and Submit TypeScript JavaScript Redux Push Notifications FCM APNS Background Location Offline First ExpressJS TypeORM PostgreSQL JWT Rate limiting Cloudflare Cloudinary Multi Tenant Auth

Current

Freelance Full-Stack Developer

Current

Self Employed

Dec 2021 - Present (4 years 10 months)

Delivered iOS and Android apps with React Native and Expo for clients in the US, Asia, and the Philippines, backed by Node.js, Express.js, and Python services. Specialized in data-heavy dashboards and visualization, offline-first mobile patterns, and complex form/workflow apps.