At 90 Seconds I lead the mobile team developing iOS and Android apps. We build apps that enable Brands and Creators to create quality video content on the 90 Seconds video production platform.

Lead iOS engineer for the Blink employee messaging platform. https://joinblink.comKey achievements:• Reviewed and improved existing codebase to improve quality and performance of the Blink iOS app.• Implemented CoreData stack to provide persistent storage.• Implemented user onboarding and signup flow, global search, and Siri integration.• Mentored junior level software engineers.

As Senior Software Engineer on the Skype for Mac team I focused on application architecture and the Skype calling experience. I worked on several Skype for Business (formerly Lync) projects and mentored junior level software engineers.

Built the user interfaces of Skype's video calling software applications for Mac OS X and iOS. Tech lead on Skype for Mac team. Senior developer on Skype for iPhone team.Built and shipped Skype for iPhone 1.0, #1 in the iTunes App Store. Led a complete rewrite of the Skype for Mac client using modern technologies and new designs. Implemented the user interface for Skype's Group Video Calling feature.

At Sony I worked in the Broadcast and Professional Research Labs on XDCAM Transfer, a Mac OS X application which enabled importing of AV media from Sony's XDCAM and XDCAM EX hardware into Final Cut Pro.Mac software development using Cocoa, Objective-C, C++ and QuickTime. Design, planning, implementation and testing of software features in a high performance video editing application. Developed a QuickTime movie importer component for viewing XDCAM MXF files natively in QuickTime. Developed QuickTime data handler components for optimised reading of XDCAM MXF files from Sony Prodisk media on XDCAM hardware.

Developed online sports betting and casino applications for Sky TV. Backend website development using TCL/TK and Informix databases. Client-server communication between onshore and offshore servers.

ADInstruments is an industry leading company in the field of scientific data acquisition. At ADInstruments I developed high performance data acquisition and analysis software for use in research and education.Developed desktop applications for Mac OS X and Windows. Designed and developed application plug-ins to extend the core software in specialist fields. Developed QuickTime-based plugins which added multimedia recording capabilities to the core software. Reimplemented existing calculation plug-ins using high performance, cross-platform C++ code. Designed and implemented a software update system.

Trouble-shooting consultant on the Macintosh port of MojoWorld, an OpenGL-based 3D landscape generator. Improved performance of real-time renderer and ray tracing engine. Brought product to release quality under a tight schedule.

Research Assistant in the Graphics and Vision Research Group. Conducted benchmarking evaluation of optical flow algorithms. Developed an image processing tool on Linux using C and TCL/TK. Developed a robot vision system in C++ on QNX.