Antefix Consulting LLC

Contract Software Development

Web / Desktop / Embedded / JS / C# / C++

Antefix is one veteran developer with a rare mix of creativity and attention to detail. Review my professional experience here, or check out a few of my side projects to see my work up-close.

Full-stack experience with MySQL, Node, Express, and Handlebars.

Native development on desktop, embedded, and mobile platforms.

Emphasis on reliable, well-documented, maintainable code.

Detailed knowledge of JavaScript, C#, and C++.

Expert business analysis and UI design.

Significant unit testing experience.

Exceptional communication skills.


My consulting experience includes business analysis, full-stack web development, unit testing, and legacy development. Other projects include embedded and mobile software, line-of-business apps for the desktop, advanced native UI development, and music software.

E-commerce site

JavaScript / MySQL / Node / Express / Handlebars

Solely designing and implementing new web app for one of the nation's largest local-foods co-ops. Functionality covers member registration and management, web and on-site shopping, inventory management, product intake and shopper checkout with handheld barcode scanners, server-generated label and invoice PDFs, detailed balance tracking for members and producers, plus sales and accounting reports.

Hardware test app

Java / Android SDK / Sockets

Developed test app for patient intake device used in many hospitals and clinics. App verifies hardware for manufacture and repair team; interactive tests check display, touchscreen, speakers, status LEDs, Camera, WiFi, USB, and Ethernet port, while automated 'burn-in' mode tests WiFi and USB functionality under sustained load. App forwards results to central test server for storage and review.

Geometry library

C# / Analytic geometry / Machine learning / Unit testing

Developed geometry library used to plan directional drilling projects. Designed and implemented several new geometry techniques that improve drilling outcomes. Also designed and implemented genetic algorithm that improves user designs or creates new designs from scratch. Added hundreds of unit tests covering many thousands of test cases. Wrote extensive documentation for client developers.

Custom 'console' control

C# / Windows Forms / Multithreading

Developed complex Windows Forms control that embeds console-style output in any form. Control offers fast display updates with thread-safe write functions, and numerous formatting, scrolling, and wrapping options. Display buffer can be saved to or restored from file, and mouse-selected content can be pasted to RTF, HTML, or plain text. Finished control is used to develop specialized test apps.

Legacy development

C# / C++ / Managed C++ / WPF / Windows Forms

Refactored and extended legacy apps used to plan or train for directional drilling projects. Internationalized app for use with multiple languages. Performed comprehensive UI review and recommended dozens of usability improvements. Added built-in PDF printing and LandXML export functionality. Fixed countless bugs.

Music synthesizer and sequencer

C++ / Android NDK + SDK / Win32 API / OpenGL ES / Audio DSP / OpenSL

Developed powerful music app for Android devices. Created full-featured cross-platform UI framework for OpenGL, custom text rendering system with kerning, extensible real-time synthesis engine, and innovative step sequencer that supports polyrhythms, arbitrary time signatures, flexible note ties and bends, and automatic transposition. App runs on Android and Windows desktop.

In-car media player

C++ / Windows CE + desktop / Win32 API / OpenGL ES

Developed UI for media device with satellite TV, DVD and CD player, iPhone/iPod connectivity, and local file browser. Designed and implemented cross-platform UI framework with touchscreen-friendly list and grid views, sliders, buttons, and other controls. Created general-purpose development library with cross-platform support for file handling, threads, and thread synchronization.

Paper currency scanner

C++ / Windows CE / Win32 API / Platform Builder

Developed major subsystems for money counter that scans 1600 bills per minute. Designed and implemented lightweight transaction database with extensible query system, real-time bill image transfer system over TCP/IP, and flexible metadata export system implementing numerous legacy protocols over serial connection. Also customized Windows CE images with Platform Builder.

Mobile order fulfillment apps

C++ / Delphi / Windows CE + desktop / PalmOS / SQL / MFC / Sockets / Barcodes

Developed mobile apps used to fulfill orders for popular web grocer, including multi-order picking app, staging, and quality control apps, plus launcher. Collaborated on mobile web app used to manage inventory. Created variety of desktop apps, including scriptable server emulator for mobile app testing, server stress-testing tool, and production monitoring utilities.


Personal website with open source software, music, games, and detailed notes on software development, physics, DSP, and math.


Clients expect real expertise when they hire a contractor, so I spend many non-billable hours studying. No one developer can do everything, but I am serious about the skills I sell, and I'm up-front about what I can and can't do.


Strong JavaScript, C#, and C++

Some Java

Platforms + Frameworks

Node, Express, Handlebars, HTML5, and CSS

WPF/XAML, Windows Forms, and Win32 API

Some Linux and Android SDK + NDK

Much experience creating custom controls and UI frameworks

Development practices

Expert business analysis

Strong OOD in multiple languages

Experience writing unit tests and custom test software

Much cross-platform development

Development tools

Experience with Visual Studio, Git, and SVN

Some Android Studio experience

Other skills

Superior writing and presenting skills

Expert UI design

Extensive database design and SQL experience

Multithreaded development

Berkeley sockets and Winsock

2D graphics with OpenGL ES

Real-time audio synthesis, DSP, and music production

Basic Mathematica