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Hello, I am 👋

Pat Teruel

I'm a mobile developer with over 9 years of experience, delivering end-to-end apps to the App Store and Play Store.

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What I Do

My Services

🍎

iOS Development

Native iOS development using Swift, UIKit, and SwiftUI. Crafting fluid, pixel-perfect apps that follow Apple's Human Interface Guidelines with FairPlay DRM and secure authentication.

📱

Cross-Platform Development

Unified business logic across platforms with Kotlin Multiplatform Mobile (KMM) and rapid feature delivery with Flutter. Modular SDKs with clean architecture and dependency injection patterns.

🤖

Android Development

Native Android development with Kotlin and Jetpack Compose. Building high-performance apps that feel at home on every Android device and screen size.

🎨

UI / UX Design

Translating wireframes and ideas into polished, intuitive interfaces. Focused on accessibility, usability, and delightful micro-interactions.

🔗

API Integration

Seamless integration with RESTful and GraphQL APIs. Handling authentication, real-time data, push notifications, and third-party SDKs (Stripe, Shopify).

🚀

App Store Deployment

End-to-end release management for the App Store and Play Store — certificates, CI/CD pipelines, artifact publishing, release notes, and ongoing maintenance.

Who I Am

About Me

Pat Teruel - Mobile Developer

Experience

9+ yrs

Cross-platform mobile engineer with 9+ years delivering iOS and Android applications, specializing in Kotlin Multiplatform Mobile for unified business logic and Flutter for rapid feature delivery.

I've architected modular SDKs, integrated payment systems and secure authentication, and shipped production apps across healthcare, fintech, events, and media. Strong native iOS foundation (Swift, UIKit, SwiftUI) with growing React Native expertise.

Name
John Patrick Teruel
Location
Philippines 🇵🇭

My Background

Resume

💼Work Experience

Mar 2021 – Present

Senior iOS Developer / Kotlin Multiplatform Engineer

CoDev

Led Kotlin Multiplatform Mobile initiative architecting modular SDKs that unified business logic across iOS and Android. Built CI/CD pipelines, integrated Stripe payments, and contributed to Flutter event ticketing and iOS travel companion apps.

May 2016 – Mar 2021

iOS Developer / Mobile Engineer

Rogomi

Delivered production apps across streaming (Cignal Play with FairPlay DRM), fintech (RCF Wallet), and compliance domains. Migrated legacy Objective-C codebases to modern Swift and prototyped full-stack solutions.

🛠️Professional Skills

Kotlin Multiplatform Mobile95%
Swift / SwiftUI93%
Kotlin / Jetpack Compose90%
Flutter / Dart85%
React Native75%
CI/CD & DevOps80%

My Work

My Projects

🏥
Cross-Platform Mobile

SafeHealth

White-label digital health app for test kit scanning, telehealth communication, and health product purchasing. Architected with Kotlin Multiplatform for shared business logic across iOS and Android.

Kotlin MultiplatformSwiftKotlinREST APIsUnit Testing
🎟️
Cross-Platform Mobile

Entourage Events

Staff-facing ticketing app for real-time event ticket management and validation. Architected with offline-first SQLite support, designed in Figma, and deployed via TestFlight and Firebase.

FlutterDartSQLiteDriftFirebase
✈️
iOS

Concee

Travel companion app enabling users to purchase digital maps from local guides. Optimized with Google Maps SDK integration, performance refactoring, and technical debt resolution.

SwiftUIKitGoogle MapsCore DataREST APIs
📺
iOS

Cignal Play

Streaming app delivering VOD and Live TV with FairPlay DRM-protected content. Integrated AVFoundation for seamless playback, secure authentication, and robust video delivery.

SwiftAVFoundationFairPlay DRMREST APIsUnit Testing
💰
iOS

RCF Wallet

Fintech/HR platform featuring wallet management, payroll processing, loan services, and time-tracking flows. Built for seamless financial transactions and workforce management.

SwiftWallet APIsPayroll IntegrationREST APIs
🛡️
iOS

WHS

Occupational Health and Safety compliance app. Managed long-running Objective-C to Swift migration, improving code quality and maintainability over multiple years.

SwiftObjective-CiOS SDKComplianceCode Migration

Say Hello

Get in Touch

Have a project in mind or want to collaborate? I'd love to hear from you. Fill in the form and I'll get back to you within 24 hours.