I have been working on and have published apps on the Apple AppStore for over three years. In this way, as a developer, I have attained an in-depth knowledge of the Apple iOS operating system and a firm command of the Swift programming language. I regularly draw on the vast resources of the built-in frameworks, third-party libraries and online services such as AWS, Firebase and other RESTful API’s. For completeness' sake, I will also mention my many years of experience of developing websites using a diverse set of technologies, Python, C#, SQL, and indeed HTML, CSS, JavaScript, to name a few.