My current interest is development of integrated mobile and web apps working from a central server, expanding the mobile device's capability by integrating other hardware over Bluetooth or USB. For example I have recently completed a prototype system that integrates survey grade GPS hardware with an Android device linked to a backend service and web app. I was responsible for managing the project; gathering and documenting requirements, architecting a solution and team leading its implementation, liaising with the clients. The mobile application is based on Xamarin and the server on .Net Core with MVC.I have also explored the practicalities of using machine learning technology on a mobile device and am able to demonstrate real time offline image classification on Android using prebuilt Tensorflow models. I also have an interest in automating system and subsystem tests. Last year I managed the development of a test suite for software operating in a safety related context. I designed a framework to document and run tests, it integrated the process of writing formal test specifications to cover formally documented requirements with C# code that implemented each test.The primary technologies I use are now clustered around .Net and C# but I have a broad range of experience, for example last year I worked on a C++ project, updating a legacy application for a client in the rail sector. In doing so I drew on many years of prior experience writing Windows based C++ applications. I have also adopted new tools and technologies if they seem more effective for a task at hand, for example I recently used Python to analyse complex sets of geographic / rail infrastructure data and assess how best use could be made of it.