David Ralph Email & Phone Number

Canton, Ma, Us

C#/.NET software engineering in support of commercial products. Creation of in-house tools using Visual Studio, C#, Winforms, Windows Services, WiX Installer, etc.

C#/.NET development, ASP.NET MVC Web API-2 with SQL Server back end. Microsoft Access/VBA with Oracle back end applications updates. On contract to the Massachusetts Dept. of Environmental Protection.

This is an ongoing personal project. The Windows Passive Crossover Designer (WinPCD) is a complete re-write in C# Winforms from scratch of a long-standing and widely used Excel/Visual Basic spreadsheet. It is used to design loudspeaker systems. Electrical and acoustic measurements are imported, then the user designs the crossover filters and can do some basic box design. The results are then combined with the crossover transfer response designed by the user to yield a model of the system responses, both electrical and acoustic.Details:• C#/.NET 4.0 WinForm Application, Object Oriented design.• Complete re-write of a large loudspeaker design program originally in Excel/Visual Basic.• Development is ongoing with core functionality working and released to the user community.• A second part of the project will use UIAutomation in C#.• More detailed information is available at http://www.speakerdesign.net/WinPCD.• Training videos can be viewed at http://www.youtube.com/user/WinPCD.

Clearwater, Us

C#/.NET desktop application software development for testing separate desktop software using Microsoft managed UI Automation classes (CodedUI), Windows 8.1 Pro with the test application running under Windows 7 in a Hyper-V Virtual Machine.

Rocketvox was to be a social networking site that allows users to aggregate their various accounts such as email, Facebook, Twitter, etc., for interaction from one site. Work involved JSON testing during beta development with Java in Eclipse. A specific variant of jUnit was used to create test scenarios to help automate testing and allow for easy regression testing. This was part-time, pro bono, working with the lead SW engineer, done as a learning experience and to help the startup.

Fairfax, Va, Us

Senior Software Engineer (12 years):Full SW development life-cycle (SDLC): Top Level Design, Preliminary Design, Detailed Design, Code/Unit Test, Software Integration and Test, Design Test and Evaluation across multiple networked/clustered classified cryptographic systems - used to create and manage encryption keys, all verified to satisfy Customer detailed requirements documents.• Conducted Cryptographic Verification Testing (CVT) for Customer observation, evaluation and acceptance of primary Cryptographic Key generation system upgrade.• Created the startup control scheme during a large hardware/software upgrade for multiple Cryptographic Units (Key loading systems).• Conducted tests at the Customer site for a large system design upgrade of the cryptographic key management system.• Updated procedures and managed system backup/restore tapes in a RAID 1 configuration for systems in the key management test platform.Software Configuration Management Engineer (2 years):• Managed software configuration and builds (not a developer role) on a Windows-based classified system using IBM Rational Clearcase UCM and Rational Rhapsody in C++ (for builds).• Managed delivery/rebase of source code to/from main stream for code-sharing among multiple projects.• Managed nightly builds using combination of Windows shell and perl scripts.• Created a set of perl scripts to generate and collate metrics for custom metrics reports.PROFESSIONAL DEVELOPMENT COURSES• Visual C# / .NET (MindLeaders)• Java (General Dynamics)• C++ (SkillSoft)• IBM Essentials of Configuration Management with Rational ClearCase UCM• IBM Rational Rhapsody Essentials Tool Training for Software Engineers• Rhapsody in C++ and UML (used for builds as Config Mgr)

Manufactures Automatic Doors and Controls for Public Transportation Systems.• Conducted reliability, maintainability and safety studies of electrical controls.• Technical writing for operation and maintenance documentation.

Wide ranging tasks, including:• Started, modified and maintained the plant power house computer system with 1200+ analog and digital inputs/outputs to monitor and control power house systems such as air compressors, chillers, vacuum pumps, hot water, boilers, etc.• Re-wrote the entire software package for a video monitoring system to upgrade and port it to a PC-based system.• Designed, modified and implemented numerous PLC-based control systems for production equipment.