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A professional mobile app developer for iOS and Android, and adaptable to your requirements. Recent apps worked on include Tutorful, Tesco Bank, SmartFinish, Airwick, Lysol Germcast, and others. I'm efficient and well familiar with the release process. My favourite stacks are Swift/SwiftUI and Kotlin/Jetpack Compose, with MVVM architecture. But I'm well experienced with UIKit and XMLs, MVC, VIPER. I have also implemented Bluetooth, UWB and Wi-Fi device connectivity, Augmented Reality, eSIMs integration, and Machine Learning models.…A professional mobile app developer for iOS and Android, and adaptable to your requirements. Recent apps worked on include Tutorful, Tesco Bank, SmartFinish, Airwick, Lysol Germcast, and others. I'm efficient and well familiar with the release process. My favourite stacks are Swift/SwiftUI and Kotlin/Jetpack Compose, with MVVM architecture. But I'm well experienced with UIKit and XMLs, MVC, VIPER. I have also implemented Bluetooth, UWB and Wi-Fi device connectivity, Augmented Reality, eSIMs integration, and Machine Learning models.

Colin Morrison

App Developer, Developer, Programmer

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A professional mobile app developer for iOS and Android, and adaptable to your requirements. Recent apps worked on include Tutorful, Tesco Bank, SmartFinish, Airwick, Lysol Germcast, and others. I'm efficient and well familiar with the release process. My favourite stacks are Swift/SwiftUI and Kotlin/Jetpack Compose, with MVVM architecture. But I'm well experienced with UIKit and XMLs, MVC, VIPER. I have also implemented Bluetooth, UWB and Wi-Fi device connectivity, Augmented Reality, eSIMs integration, and Machine Learning models.…A professional mobile app developer for iOS and Android, and adaptable to your requirements. Recent apps worked on include Tutorful, Tesco Bank, SmartFinish, Airwick, Lysol Germcast, and others. I'm efficient and well familiar with the release process. My favourite stacks are Swift/SwiftUI and Kotlin/Jetpack Compose, with MVVM architecture. But I'm well experienced with UIKit and XMLs, MVC, VIPER. I have also implemented Bluetooth, UWB and Wi-Fi device connectivity, Augmented Reality, eSIMs integration, and Machine Learning models.

Available to hire

Aberdeen, United Kingdom

A professional mobile app developer for iOS and Android, and adaptable to your requirements.

Recent apps worked on include Tutorful, Tesco Bank, SmartFinish, Airwick, Lysol Germcast, and others. I’m efficient and well familiar with the release process.

My favourite stacks are Swift/SwiftUI and Kotlin/Jetpack Compose, with MVVM architecture. But I’m well experienced with UIKit and XMLs, MVC, VIPER. I have also implemented Bluetooth, UWB and Wi-Fi device connectivity, Augmented Reality, eSIMs integration, and Machine Learning models.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Beginner

Beginner

Beginner

Language

English

Fluent

Work Experience

Mobile Developer at Tutorful

June 24, 2025 - Present

Temporary contract for Tutorful's iOS and Android apps, enabling students and tutors to connect, manage communications, scheduling, payments, and accounts, supporting millions of lessons. Overhauled push notifications, reduced crash rates and bug backlog, standardized design implementations across platforms, updated critical dependencies, and added new user-facing features including custom attachments integration to Stream chat using Async/Await/Coroutine, Pagination, MVVM, and unit/snapshot tests.

Senior iOS Developer at Ycorp

April 14, 2024 - June 23, 2025

Startup-focused iOS development for white label eSIM provisioning apps; produced a new iOS app to supersede the previous Ymobile, with overlap to Android and React Native. Repaired and released the RN app for 2024. Worked with multiple teams to decipher, document, and implement a complex API quickly. Experience with Bluetooth and UWB connected devices.

Senior iOS Developer at Reckitt

August 13, 2023 - April 12, 2024

Created fast-turnaround iOS concept apps for R&D, healthcare, and medical use while maintaining existing apps; mentored junior developers; explored ARKit/RealityKit, Bluetooth and Wi-Fi connected devices, and pattern recognition using Core ML.

iOS Developer at Reckitt

August 7, 2022 - August 10, 2023

Maintained existing Swift, Objective-C, and React Native apps; implemented accessibility features, CI/CD, development standards and documentation, API data changes, and App Store management.

Junior iOS Engineer at Tesco Bank

August 8, 2021 - August 4, 2022

Debugging and adding front-facing features to the Tesco Bank app; significant refactoring from Objective-C to Swift.