Alexander Frost

Mobile and desktop app development for multiple clients on a part-time basis. Current clients include British IT security company, Norwegian medical device company, and Swiss investment bank. Services provided: app architecture, prototyping, code porting between platforms, creation of cross-platform codebase, security audits, SSO and authentication setup, UX design and testing, deployment and installers.

Architecture and development of secure communications client app for Windows 10 and macOS: messaging, group messaging, audio and video calls, screen sharing, document exchange.
Usability and UX, cross-platform codebase, advanced system integration. Maintenance of iOS apps. C / C++, C#, Swift Windows 10, macOS, iOS, Windows 10 Mobile WPF, UWP, Cocoa, Cocoa Touch

Architecture and development of security plug-ins for Windows (credential providers, CNG, Kerberos) and OS X (authorization plug-ins). Development of advanced user experiences (embedded Chromium / CEF, Cocoa, NSURLProtocol, WebKit, XAML). Worked with cross-platform cryptography core (wolfCrypt / wolfSSL, CNG), smartcards, and biometrics. C / C++, Swift, Objective-C Windows 10, OS X, iOS, Windows 10 Mobile UWP, Cocoa, Cocoa Touch

Planning and development of enterprise security SDK for modern Windows app platform. Integration and maintenance of cross-platform core (Windows / iOS / other platforms). Lead researcher, team lead, manager of outsourced developers. C#, .NET, C++, C++/CX, WinRT Windows 8 / RT, Windows Phone 8 iOS, Objective-C, Swift

Planning, architecture, and development of Windows 8 / Windows Phone client for the enterprise CMS product – including UI, interactivity, scripting, rich media, mapping, and data storage / queries. Cross-platform code migration from iOS and other platforms. Team lead, managed outsourced and in-house developers. C#, .NET, WinRT, Silverlight Windows 8, Windows Phone 8, Windows Phone 7 / 7.5 iOS, Objective-C, SQLite, Bing Maps, REST

Development of rewritable disc software for CD-RW and DVD-RW formats. Maintenance of UDF file system support, implementation of Windows service for disc burning. C++, MFC, Win32 API, GDI+, FreeImage C#, .NET, Windows Forms