
Full Stack & Mobile Application Developer
Marvin John U. Benigra
Building Scalable Mobile Experiences, One Line of Code at a Time.
About me
A bit of context
I build mobile and web products, from Flutter apps to Next.js portals. At MeldCX / Skunkworks I work across the client, APIs, and data, including on-device vision and member platforms.
Before that I was the sole mobile developer at YAHSHUA Outsourcing Worldwide. I led the move from native Android and iOS to Flutter and shipped the ABBA workforce apps through the App Store, Play Store, and AppGallery.
Skills
What I bring to a team
- Flutter & Dart
- Next.js & TypeScript
- Legacy migration (native Android/iOS to Flutter)
- Solo mobile developer leadership
- State management (BLoC, GetX, ChangeNotifier, Zustand)
- Tailwind CSS & Shadcn UI
- React Query, Zod & Axios
- Node.js, PostgreSQL, Neo4j & Redis
- Keycloak authentication
- On-device AI (Google ML Kit, TensorFlow Lite)
- Biometrics, face recognition & liveness
- Geo-location & geo-fencing
- Offline-first & local data sync
- Camera & hardware integration
- UI/UX to mobile and web
- App Store, Play Store & AppGallery deployment
Tech stack
Tools I use day to day
Languages
Dart · TypeScript
Mobile
Flutter · Flutter Web · GetX
Web
Next.js · Tailwind CSS · Shadcn UI
State
BLoC · GetX · ChangeNotifier · Zustand · Zod · React Query
Backend
Node.js · REST APIs · PostgreSQL · Neo4j · Redis
Device & AI
Google ML Kit · TensorFlow Lite · AWS Rekognition · Keycloak · Camera · GPS
Release
App Store · Google Play · AppGallery · Firebase Hosting
Experience
Where I've worked — and what I shipped there
MeldCX / Skunkworks
Full Stack & Mobile Application Developer
2024 — 2026
- Built high-performance cross-platform mobile and web applications using Flutter, Dart, and GetX for state management and routing.
- Integrated on-device AI/ML capabilities using Google ML Kit and TensorFlow Lite for real-time computer vision and liveness detection.
- Architected dynamic and accessible web user interfaces using Next.js, TypeScript, Tailwind CSS, Shadcn UI, Zustand, Zod, and React Query.
- Developed scalable server-side services and RESTful APIs using Node.js, modeled relational databases in PostgreSQL, and mapped graph structures in Neo4j.
- Implemented Redis caching and queuing solutions to optimize database query performance and handle background processing tasks.
Projects at MeldCX / Skunkworks

Ascendra International — User & Admin Portals
View appUser and admin portals for a Philippine direct-selling company focused on wellness and health protection products.
Next.js · TypeScript · Tailwind CSS · Shadcn UI · Zustand · Zod · React Query · Axios · Node.js · PostgreSQL · Neo4j · Redis

Ascendra Learning Hub
View appA learning platform for Ascendra members, with product training, onboarding, and educational resources on web and mobile.
Flutter · Dart · Flutter Web · Firebase Hosting · GetX · REST APIs

eStorya
View appAn educational app that helps young learners build literacy through media-rich storybooks.
Flutter · Dart · Audio Processing · GetX

PCGA Harbor
View appA self-service app for Philippine Coast Guard Auxiliary members to manage profiles, dues, donations, mission briefings, and official notices.
Flutter · Dart · Keycloak · Liveness Detection · REST APIs · GetX
YAHSHUA Outsourcing Worldwide
Mobile Application Developer (Flutter)
2020 — 2024
- Served as the sole Mobile Developer for over 3 years, independently managing, scaling, and deploying the entire mobile suite across iOS and Android platforms.
- Initiated and led the migration of legacy Native Android and iOS projects to a unified, scalable cross-platform Flutter architecture following the departure of the previous mobile engineering team.
- Architected and delivered cross-platform mobile applications using Flutter and Dart, following Clean Code principles and structured architecture.
- Applied enterprise state management patterns tailored to project requirements, including BLoC, GetX, and Provider/ChangeNotifier.
- Integrated RESTful APIs, managed asynchronous data streams, and implemented secure local storage solutions with offline synchronization.
- Utilized device capabilities including camera, GPS location services, biometrics, hardware QR scanning, and push notifications.
- Managed full application lifecycles from UI/UX design translation to multi-platform store deployments across Apple App Store, Google Play Store, and Huawei AppGallery.
Projects at YAHSHUA Outsourcing Worldwide

ABBA Timekeeper
View appA workforce time-tracking app for automated employee logging, field operations, and offline attendance.
Flutter · Dart · AWS Rekognition · Hive / SQLite · REST APIs · QR Scanner · Geo-location · Geo-fencing

ABBA Employee Kiosk
View appA self-service app for employees to manage HR tasks, track request status, and read company communications.
Flutter · Dart · BLoC · GetX · REST APIs · Push Notifications

ABBA Approval
View appA mobile app for HR managers, department heads, and administrators to review and decide workforce requests.
Flutter · Dart · Push Notifications · Secure Auth · REST APIs

ABBA Docupic
View appA capture app for accounting and finance teams to photograph, categorize, and upload official documents.
Flutter · Dart · Camera API · Image Compression · Secure File Upload
Contact
Get in touch
Email
marvinjohnuy@gmail.comPhone
+639978369294