Greg Caldwell
Systems Development Manager at Geepers Interactive Ltd
Lichfield, England, United Kingdom
Summary
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SeniorGreg Caldwell is a seasoned systems development manager and freelance interactive developer with 16 years’ experience building 3D-rich experiences across mobile, web and desktop. As director of Geepers Interactive and a core contributor to the Away3D and OpenFL ecosystems, he blends hands-on ActionScript/Haxe development with cross-platform performance engineering and Stage3D/Matrix3D expertise. He has shipped mobile games and apps on iOS, Android and PlayBook using Adobe AIR, and delivers end-to-end solutions from ASP.NET backends to industrial control interfaces. Currently leading systems development at Waterman Environmental Services, he pairs managerial responsibility with active open-source contributions—fixing HTML5 backend rendering, texture handling and font/DOM issues in OpenFL. Known for pragmatic problem-solving, he often surfaces low-level compatibility fixes that unlock broader cross-platform capabilities.
16 years of coding experience
Github Skills (9)
haxe10
openfl10
cross-platform10
backend9
game-development9
frontend9
flash9
html8
webgl8
Programming languages (5)
Github contributions (5)
openfl/openfl
Jun 2014 - May 2018
An open source library for creative expression on the web, desktop, mobile and consoles. Inspired by the classic Flash and AIR APIs.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:24 commits, 24 PRs, 17 comments in 3 years 11 months
Contributions summary:Greg contributed to the OpenFL framework, focusing on improving the `Matrix3D` class, including implementing `Orientation3D` and ensuring compatibility across different backends. They also fixed issues in the HTML5 backend regarding PNG, JPG, and GIF detection, addressing signed/unsigned byte reads. Additionally, the user made improvements to the Stage3D implementation, including fixing render-to-texture functionality and adding getRGBAPixels to the HTML5 backend. Further contributions involved fixing DOMTextField rendering, anisotropic filtering and implementing the font tag of htmlText.
web-desktopazerothcoredefoldjavascriptflash
Greg209/openfl
Jan 2015 - Jan 2022
A fast, open-source, native implementation of the Flash API
Contributions:1 PR, 145 pushes, 6 branches in 7 years 1 month
apiapi-flashthe-flashflash
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