512-779-5504

davidbellhorn@gmail.com

Pflugerville, TX

Summary

Knowledgeable software engineer with 25-plus years of experience in C++
development. Extensive background in full software development life cycle
including design, implementation, testing, debugging, and profiling.

Experience

• Led teams updating the state machine with improved flight characteristics and new functionality using C++ and Python within a proprietary MQ-9 Reaper simulator for multiple U.S. Air Force contracts.
• Created state machines for team, squad, platoon, and company sized unit behavior in response to officer candidate orders providing U.S. Marine Corps Warfighting Laboratory enhanced logistics training.
• Implemented pathfinding algorithms in C++ for realistic unit formation traversal across a simulated megacity built within Unreal for a DARPA project evaluating Mosaic Combat.
• Helped developed a virtual Littoral Combat Ship in Unreal with C++ based grading logic for the U.S. Navy’s Engineering Plant Technician course.
• Wrote tracking device firmware in C to generate geographic locations for real time synthetic airborne surveillance video feeds during live training exercises.
• Created a C# app which calculates hourly sun positions over the timeframe of a live training exercise.
• Recorded eye movement and EEG waveforms of participants in a virtual reality urban environment with C++ plugins for a project testing memory recall.
• Developed multiple software and embedded processor prototypes for DARPA.

• Helped develop DC Universe Online massively multiplayer role playing game.
• Implemented gameplay systems with C++ on a Linux server.
• Created user interface elements in Unreal and supporting C++ code base.

• Helped develop a proprietary video game engine with C and C++.
• Worked with Nintendo and Sony real-time operating systems.
• Shipped 8 games including Tony Hawk’s Pro Skater, The Sims, Spider-Man, The Incredible Hulk, and Pitfall: The Lost Expedition.

• Supported Synergy C++ software product providing remote scheduling and control of multimedia through proprietary hardware.

Skills

Proficient: C/C++, C#, and Unreal Engine

Familiar: Python, Javascript, HTML, Lua, and Jenkins CI/DC

Education

Interests

President of the Austin Area Rocketry Group

Developing a model rocket flight stability controller with C++ firmware.

Developing a model rocket recording altimeter with CircuitPython firmware.