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RK

Ronan Kelly

Senior Software Engineer

Miami - New York

๐Ÿ”ดHODLing

Dynamic full-stack software engineer with over 5 years of experience developing mobile applications for iOS and Android. Expert in Swift, Kotlin, and backend frameworks like Ruby on Rails and Flask. Proven track record of driving product innovation, improving code quality, and enhancing application stability.

Skills

iOS Development9/10
Swift9/10
Android Development8/10
CI/CD8/10
Kotlin8/10
Python (8/10)REST APIs (8/10)Ruby on Rails (8/10)State Machine Architecture (8/10)SwiftUI (8/10)JavaScript (7/10)C# (7/10)Java (7/10)TypeScript (7/10)C++ (7/10)AWS (7/10)Docker (7/10)GraphQL (7/10)LLM Integration (6/10)WebAssembly (6/10)

Work Experience

Senior Software Engineer

Meta

Jul 2025 โ€” Present

Contributed to the Meta AI app within the Product Foundation Team, enhancing both Android and iOS platforms. Managed on-call responsibilities, improved application stability by 30%, and increased test coverage by 20% for iOS and 14% for Android.

Software Engineer III

R1 RCM

Feb 2024 โ€” Jul 2025

Revamped iOS build pipelines achieving 30% reduction in build times. Refactored core application logic into modular Swift packages, decreasing production bugs by 25%. Developed real-time patient-registrar chat feature and implemented company-wide feature flagging system.

Software Engineer

Amazon

Mar 2022 โ€” Mar 2024

Led implementation of features for Flex iOS application state machine architecture. Reduced boilerplate code for feature onboarding by 80%. Delivered feedback feature integrated into developer workflows and managed on-call responsibilities.

iOS Developer

Hilton Software

Aug 2020 โ€” Mar 2022

Modernized codebase by replacing Objective-C with Swift and integrating SwiftUI. Developed two data processing tools using C# and F#. Conducted code reviews and facilitated onboarding of new developers.