Open to opportunities

James Harrison

@jamesharrison2

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Senior Mobile Engineer specializing in high-performance cross-platform iOS and Android applications.

United States

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What I'm looking for

I seek roles where I can lead mobile engineering to build scalable, accessible cross-platform apps, improve CI/CD and testing, and drive measurable user and business outcomes.

Senior Mobile Engineer with 11 years of experience building high-performance iOS and Android applications across healthcare, finance, and consumer tech. Expert in React Native (FullStack Certified), Flutter, Kotlin, Swift, and Objective-C, with strong backend integration skills in Java and Python.

Experience

Work history, roles, and key accomplishments

Senior Mobile Engineer

DigitalFish

Jun 2022 - Sep 2025 (3 years 3 months)

As a Senior Mobile Engineer, I have developed cross-platform mobile applications using React Native, Flutter, and Angular, integrating native accessibility features (VoiceOver, TalkBack) for inclusive user experiences.

React Native Swift Kotlin Fastlane Firebase GraphQL REST TestFlight CI CD

Mobile Application Developer

Maximum Transportation

Oct 2017 - Apr 2022 (4 years 6 months)

Led design and implementation of a fleet and rider management app with real-time tracking and offline-first capabilities, improving on-time arrivals by 35% and increasing rider adoption by 20% through serverless AWS backend services.

React Native Kotlin AWS Lambda API Gateway DynamoDB SQLite TestFlight GraphQL

Mobile Developer

InfoBeyond Technology LLC

Oct 2014 - Aug 2017 (2 years 10 months)

Directed development of an encrypted instant messaging app using Kotlin and Swift, implemented Signal-protocol E2E encryption and migrated REST APIs to GraphQL, reducing API calls by 40% and crash rates by 40%.

Kotlin Swift Objective C GraphQL Signal Protocol Firebase Jest Espresso XCTest

Education

Degrees, certifications, and relevant coursework

Western Kentucky University

Bachelor of Science, Computer Science

2008 - 2012

Completed a Bachelor of Science in Computer Science with coursework focused on software development, algorithms, and systems from Aug 2008 to Aug 2012.