Wirelist Generator

Designed and developed a 3-tier application development environment (C#) for new in-house requirements and replacing of legacy systems

Interfaced with other departments to obtain user requirements

Provided training in OOD, C#, .NET and database design for IT staff

Developed approaches for computational types and formal methods in F#

Implemented data store / schema in Oracle DBMS

Prototyped using Visio to generate electrical model

Developed algorithms to automate the generation of netlists and wirelists from the electrical model

Provided technical guidance to the IT team

Switch Ring Analyzer

Solved a complex network topology problem analyzing satellite end-of-life failure modes of on-orbit switch rings

Provided engineers with visualization tools in both custom client UI presentations and Visio

Implemented thread-based algorithm to maximize CPU utilization during analysis

Project has been enhanced over the years to support additional requirements as the capabilities of communication satellites has evolved.  

In 2011, the entire code-base was rewritten in C# without performance degradation, the algorithms were redesigned to accommodate new requirements, and all supporting documentation was updated.

Internet Over Satellite Simulation (2000 – 2002)

Designed and developed a proprietary Internet over satellite simulator

Simulated Consumer Premise Equipment, virtual satellite link, virtual gateway using COM

Modeled TCP split protocol, rain fade compensation, and QoS scenarios

Implemented user interfaces allowing engineers to simulate various conditions and visualize performance

Satellite Design Tool

Working with Advanced Systems department, designed and developed the DBMS (Oracle) and client software for automating satellite designs from frequency plans and uplink/downlink requirements

Developed algorithms to analyze power requirements, mass calculations, orbital lifetime and launch vehicle selection

Implemented participant data gathering and reporting website for Black Mothers Breastfeeding Club, tracking participant registration, pregnancy and breastfeed statistics. 

Implemented in C# / .NET using jQuery, Knockout, Bootstrap, and jqWidgets.

Upgraded two major websites that collect electronic health records on midwives and nursing mothers, from Ruby on Rails 2.0 to 3.0

Corrected numerous migration issues and replaced existing authentication with Devise and CanCan

Corrected existing feature tests and added new tests to verify changes and new functionality

Enhanced websites with numerous UI changes

Added additional functionality to the Model-View-Controller (MVC) code base with a TDD process

Added new site testing features and updated existing tests to leverage Capybara’s website testing automation

Provided utility functions to self-document Cucumber feature steps

Assisted in all phases of development from requirements design to implementation to feature testing and finally deployment

Worked closely with original website creators (Harris-Braun Enterprises) to take on responsibility of managing the code base as well as an internally created form generation / automation library

Worked in dual development environments (Windows and Ubuntu 10.4)

Utilized the development tools RubyMine IDE and SmartGit/Hg in both Windows and Ubuntu environments

Assisted in production deployment to Ubuntu 10.4 servers

Implemented C#/.NET interfaces to various support hardware, including:

Verifone pinpad
Ingenico iSC480 pinpad
MagTek card swiper
ScanShell800R scanner

Implemented a component-based framework which allowed for easily exchanging different hardware vendor products and mocking hardware.

Cage Software

Implemented C#/.NET REST-based client application for casino cage credit/debit transactions, replacing older VPN technology.  Company saw an immediate increase in revenue as a result.

ATM Software

Implemented C#/.NET REST-based client application, interfacing with GenMega 6000 ATMs.  

Cage/ATM Next

The next version of the Cage/ATM software utilizes CefSharp with an HTML5 / Javascript UI and C#/.NET layer for the hardware interface.

Participated in back-end server development in Python.

Designed and implemented a sophisticated state manager as the backbone of a “cashless kiosk” system, automating WPF screen transitions based on pre-configured options, and real-time validation

Designed and implemented a runtime module manager, allowing the kiosk to be configured for different hardware (printers, bill acceptors, credit card scanners), and supporting testing with mock components

Implemented a mock web-service server to facilitate development and testing of web-service protocols

Internal architecture very similar to Flux as opposed to MVC or MVVM.

Provided guidance and roadmap to transition from an existing 2-tier Clarion-based record management system to a 3-tier architecture implemented in .NET and C#

Presented evaluations of .NET and third party technologies to CEO and investors

Planned product development effort with Director of Development and the senior DBA

Developed protocols and automation tools for working with SQL-XML (SQL Server)

Implemented code style and review policies

Implemented a wiki for tracking in-house design documents, training materials and other supporting documentation

Designed and developed a 3-tier framework (C#), bridging existing SQL Server tables to new, normalized, schemas

Website Development

Enhanced an open source crowd-funding website to meet client requirements for a website designed specifically for Denver CO neighborhoods

Added skills and resources options to project creation process

Added ability for backer to select non-monetary skills and resources

Added Google Maps feature in project explorer

Utilized Facebook Query Language (FQL) to integrate like counts into the project and admin pages

Made numerous enhancements to layout utilizing Slim and SASS

Added several new pages specific to MHBA requirements

Updated project to run under Windows (MSYS/MinGW) from a Linux-only development environment

Performed production deployment on a dedicated server (Ubuntu 10.4)

Project Management

Provided extensive project management skills

Developed initial set of requirements

Coordinated weekly meetings, reviewing tasks, accomplishments, and new requirements

Provided weekly updates of prioritized task lists, coordinating responsible parties and projected delivery dates

Extremely short project with very ambitious goals

Kiosk Controller

Working with the Beaglebone Black and Debian, researched, developed, and documented unique solutions for interfacing with the MARS Bill Acceptor over RS232 in C++.

Researched and developed a Ruby interface for Magtek credit card reader.

Researched and documented configuring Debian running on the Beaglebone Black with auto-login, initialization of capes, and implementing a client interface to a Postgres database server (libpq).

Provided documentation for using Eclipse in a cross-platform compiler configuration supporting gcc-linaro for C and C++ development.

Impliemented custom kiosk user interfaces with Qt.

Video Kiosk System

Working with another contractor, developed a TIVO-like video distribution system

Utilized Cygwin, Avisynth, DirectShow.NET and VMR9 to implement MPEG2 movie encoding and distribution

Implemented a USB interface for bill acceptor and touch panel hardware

Designed and developed the back-office server and administration forms/reports to track system performance, income, and configure schedules and rate structures.

Entertainer Management System

Developed a 2-tier management system (C++/MFC/SQL Server)

Developed a proprietary UDP protocol to interface to bill acceptors, alarm modules, and check in/out modules

Implemented supporting management UI’s for customizing rate structures and managing personnel and cash outs

Designed and implemented interfaces to Dallas Semiconductor iButton hardware