Zheng Lei
Freelance Software Engineer
Singapore, China
Summary
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RockstarZheng Lei is a freelance software and hardware engineer with 13 years of experience, based in Singapore and originally from China. He focuses on improving stability and robustness in complex applications, contributing as a back-end developer to the well-known open-source 3D parametric modeler FreeCAD. His GitHub work shows a practical emphasis on exception handling, observer callback fixes, and hardening traversal and rendering subsystems—skills that translate to reliable production software and embedded systems. Comfortable bridging software and hardware concerns, he brings a pragmatic, debugging-first mindset to freelance projects that demand resilient core functionality.
13 years of coding experience
Github Skills (7)
error-reporting10
debugging10
debug10
c-language10
exception-handling10
cprogramming-language10
3d-rendering8
Programming languages (7)
Github contributions (5)
FreeCAD/FreeCAD
Aug 2018 - Jan 2023
This is the official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:58 reviews, 585 commits, 265 PRs in 4 years 5 months
Contributions summary:Zheng's commits primarily focus on addressing exceptions and implementing error handling mechanisms within the FreeCAD codebase. Their work involved modifying existing observer callbacks, handling potential exceptions in the tree node traversal, and integrating error reporting. The contributions appear to involve debugging and improving the robustness of the application's core functionality, with a focus on stability within the 3D rendering and selection modules.
engineeringmodelerfemedacoin
realthunder/fcad_pcb
Jan 2017 - Jan 2023
FreeCAD scripts for PCB CAD/CAM
Contributions:2 releases, 113 commits, 13 PRs in 6 years 1 month
cadcamedapcbkicad
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