Mobile Developer Resume Example (2026 Guide)
Mobile Developer resume example
A complete sample in the Modern template FitMyRole exports. The person and employers are fictional; the structure, skills and bullet style are what to copy.
Rosalind Liang
[email protected] • (555) 011-8093 • Irvine, CA • linkedin.com/in/rosalindliang
Professional Summary
Senior Mobile Developer with 7 years building iOS and Android apps in Swift, Kotlin and React Native, from agency client apps to consumer products with hundreds of thousands of users. Leads iOS development for a fitness subscription app with 420,000 monthly active users and a 4.8-star App Store rating, and owns its release process on both stores. Rebuilt the workout player in SwiftUI, raising crash-free sessions to 99.9%, and shipped an onboarding and paywall redesign that lifted trial-to-paid conversion by 14%. Works across the stack with backend engineers on REST and GraphQL APIs and reviews code for a team of 5 mobile developers.
Technical Skills
- Languages: Swift, Kotlin, TypeScript, JavaScript, Objective-C, Java
- iOS: SwiftUI, UIKit, Combine, Swift concurrency (async/await), Core Data, StoreKit 2, HealthKit, XCTest, Instruments
- Android: Jetpack Compose, MVVM, Kotlin Coroutines and Flow, Room, WorkManager, Google Play Billing, Espresso
- Cross-Platform: React Native, Expo, Redux Toolkit, native modules in Swift and Kotlin
- APIs & Services: REST APIs, GraphQL, Firebase (Crashlytics, Remote Config, Cloud Messaging), APNs, Stripe SDK
- Release & CI/CD: Fastlane, Bitrise, GitHub Actions, TestFlight, App Store Connect, Google Play Console, phased rollouts
- Quality & Performance: Unit and UI testing, XCUITest, snapshot testing, MetricKit, crash analytics, accessibility (VoiceOver, TalkBack)
Education
- Coursework focus: Mobile and Ubiquitous Computing, Software Engineering, Human Computer Interaction and Data Structures.
Work Experience
Senior Mobile DeveloperApril 2023 – PresentTrailhead Fitness, Irvine, CA
- Raised crash-free sessions from 99.2% to 99.9% by rebuilding the workout player in SwiftUI around a single state machine for playback, downloads and HealthKit sync, ranking fixes with Firebase Crashlytics.
- Increased trial-to-paid conversion by 14% by shipping a redesigned onboarding and paywall in Swift and Kotlin with StoreKit 2 and Google Play Billing, tested through Firebase Remote Config experiments.
- Cut iOS cold start time from 2.8 seconds to 1.1 by deferring SDK initialization, lazy-loading the home feed and trimming 22 MB from the app binary, measured with Instruments and MetricKit.
- Built offline workout downloads now used by 35% of subscribers, with background URLSession transfers and encrypted storage on iOS and resumable WorkManager jobs on Android.
- Own the biweekly release train for iOS and Android with Fastlane, Bitrise and phased rollouts, shipping 26 releases a year to the App Store and Google Play with 2 hotfixes in the past 12 months.
- Defined the REST and GraphQL contracts for coach messaging with the backend team, including cursor pagination and push notifications through APNs and Firebase Cloud Messaging.
- Lead code review for 5 mobile developers and raised unit test coverage on shared modules from 30% to 70% with XCTest, JUnit and snapshot tests.
Mobile DeveloperFebruary 2021 – March 2023Coastal Key Hospitality, Costa Mesa, CA
- Built the Android mobile key in Kotlin with Bluetooth Low Energy door locks, letting guests skip the front desk at 48 hotels and reaching 110,000 digital check-ins in its first year.
- Lifted the Play Store rating from 3.9 to 4.6 by rewriting the Android booking flow from Java to Kotlin with Jetpack Compose and MVVM, removing 9,000 lines of legacy code.
- Integrated the loyalty and reservations REST APIs in the iOS and Android apps with retry logic and response caching that cut booking errors on weak connections by 40%.
- Added VoiceOver and TalkBack support across 30 screens after an accessibility audit, meeting the company’s WCAG 2.1 AA target for both apps.
- Set up Bitrise CI with Espresso and XCUITest UI tests on every pull request, catching regressions before builds reached the QA team.
Junior Mobile DeveloperJuly 2019 – January 2021Pixelward Studios, Los Angeles, CA
- Built 4 client apps in React Native and TypeScript for retail, events and nonprofit clients, from the first sprint to release on the App Store and Google Play.
- Created a shared React Native component kit for navigation, forms and push notifications that the studio reused on 3 later projects, saving about 2 weeks of setup each.
- Integrated Stripe payments, Google Maps and Firebase push notifications into a festival ticketing app that handled 60,000 ticket scans over one weekend.
- Wrote native Swift and Kotlin modules for camera and barcode scanning where React Native libraries fell short, and fixed 80+ bugs raised in client QA.
Want yours to read like this? Upload your resume and a job posting, and FitMyRole rewrites it for that job in this template.
Tailor my resumeWhy This Resume Works
- App-level numbers recruiters look for are up front: 420,000 monthly active users, a 4.8-star App Store rating, crash-free sessions at 99.9% and 26 releases a year on both stores.
- Platforms and languages are tied to the work ("rebuilding the workout player in SwiftUI", "rewriting the Android booking flow from Java to Kotlin with Jetpack Compose"), so iOS, Android, Swift and Kotlin are proven, not listed.
- Store deployment is explicit: Fastlane, Bitrise, phased rollouts and a hotfix count show the full app lifecycle that the "built apps" resumes leave out.
- Performance work is measured the way mobile teams measure it, cold start from 2.8 seconds to 1.1 with Instruments and MetricKit.
- The React Native agency job explains the cross-platform skills and makes the move to native iOS and Android leadership read as a deliberate progression.
Common Resume Mistakes
- Listing only "built apps" without store or user metrics.
- Missing platform or framework keywords.
- No mention of store deployment or ratings.
Keywords Recruiters Look For
- iOS
- Android
- Swift
- Kotlin
- React Native
- Mobile
- App
- REST API
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