Colin Morrison

Available to hire

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.

About

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.

  • 5 years' experience
  • Joined September 2025

Languages

  • EnglishFluent

Industry experience

  • Software & Internet
  • Healthcare
  • Education
  • Manufacturing
  • Professional Services
  • Telecommunications
  • Consumer Goods

More experts in Aberdeen, United Kingdom

Work experience· 5 roles

Mobile Developer · TutorfulJun 2025 – Present · 1 yr 6 mos

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 · YcorpApr 2024 – Jun 2025 · 1 yr 3 mos

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 · ReckittAug 2023 – Apr 2024 · 9 mos

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 · ReckittAug 2022 – Aug 2023 · 1 yr 1 mo
Junior iOS Engineer · Tesco BankAug 2021 – Aug 2022 · 1 yr 1 mo

Education

PDA Software Development SCQF Level 8 · CodeClan2021
MEng Chemical Engineering · Heriot-Watt University2011 – 2016

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