Orfeas Zafeiris
Tech Lead at Pointlimit
Greece
Summary
👤
Senior🎓
Top SchoolOrfeas Zafeiris is a tech lead with 14 years of experience building and architecting backend systems from startups to established teams, currently leading engineering at Gamban while co-running Pointlimit. He combines hands-on C++ and Python development with technical leadership, having rebuilt critical game replay systems and contributed to the prominent sol2 C++/Lua binding project. His background includes CTO and senior architect roles where he modernized legacy PHP systems, designed secure operational stacks, and guided product-focused engineering. Based in Greece, he pairs deep serialization, I/O and systems-level expertise with practical product delivery. Notably, his open-source work restored replay functionality in a niche speedrunning title and added UTF-8 and usertype improvements to sol2, reflecting attention to both low-level reliability and developer ergonomics. He brings a pragmatic, error-tolerant engineering philosophy—“software? software! we all make mistakes.”—that emphasizes iterative improvement and resilience.
14 years of coding experience
4 years of employment as a software developer
Master of Science in Engineering (MScEng), Computer Science and Engineering, Master of Science in Engineering (MScEng), Computer Science and Engineering at University of IoanninaHigh School Diploma, High School, High School Diploma, High School at Ekpaideutiki Anagennisi
Greek, English, German
Github Skills (12)
lua10
source-engine10
data-serialization10
c-language10
cpp10
game-development10
modx10
cprogramming-language10
serialization10
documentation9
data-structure9
data-structures9
Programming languages (13)
Github contributions (5)
ThePhD/sol2
May 2016 - Jul 2018
Sol3 (sol2 v3.0) - a C++ <-> Lua API wrapper with advanced features and top notch performance - is here, and it's great! Documentation:
Role in this project:
Back-end Developer
Back-end DeveloperContributions:19 commits, 9 PRs, 152 comments in 2 years 2 months
Contributions summary:Orfeas primarily contributed to the `sol2` project by fixing typos and addressing minor issues in the documentation. They added support for the Lua 5.3 utf8 library and implemented improvements in the handling of switch options. Additionally, the user introduced a new `simple_usertype` class, enhancing the project's usertype capabilities. Furthermore, they worked on documentation layout, added a search bar to the documentation, and corrected broken links.
lua-bindingclangndkvisual-cppios
momentum-mod/game
Jun 2016 - Jun 2016
Momentum Mod - Standalone Source Movement Speedrunning (READ README)
Role in this project:Back-end Developer
Back-end DeveloperContributions:23 commits, 1 PR, 1 branch in 4 days
Contributions summary:Orfeas primarily focused on implementing and refactoring the replay system within the Momentum Mod game. They implemented a `BinaryWriter` and `BinaryReader` to handle file input/output, critical for saving and loading replay data. Furthermore, the user reworked replay-related data structures like `ReplayFrame` and `ReplayHeader` for improved serialization and created the `CMomReplayManager` to control replay functionality. The contributions resulted in the re-establishment of working replay functionality within the game.
2d-gamemomentumgamemodsource-engine
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