Diogo Sousa
Software Engineer at Cloudflare
Lisbon, Lisbon, Portugal
Summary
🤩
Rockstar🎓
Top SchoolDiogo Sousa is a software engineer with 14 years of experience building robust back-end systems, currently contributing at Cloudflare from Lisbon. He has a strong Rust and Scala background, with notable open-source work on high-profile projects like rust-itertools, Cargo, and Cloudflare's lol-html, where he modernized code to newer Rust editions and added practical parsing and mutation features. Previously he built scalable fraud prevention back-ends in Scala at Feedzai and contributed to media-platform engineering at ITV, demonstrating experience with production-grade distributed systems. His open-source contributions show attention to tooling, correctness, and performance—turning warnings into errors, adding extensive tests, and improving ergonomics for users and integrators. Diogo pairs academic rigor (MSc and BSc in Computer Science) with hands-on engineering, and he often focuses on subtle reliability improvements such as edge-case crash prevention and protocol-compliant handling. An observant maintainer, he balances refactors, documentation, and new features to keep libraries both fast and easy to use.
14 years of coding experience
4 years of employment as a software developer
Bachelor's degree, Computer Science, 17, Bachelor's degree, Computer Science, 17 at Universidade Nova de LisboaSummer Course, Computer Science, Summer Course, Computer Science at Universiteit Utrecht
Github Skills (23)
parserator10
algorithms10
debug10
parser10
testing10
configuration-management10
c1110
data-structure10
c1710
html10
data-structures10
irc-protocol10
iterator10
package-manager10
rust10
Programming languages (14)
Github contributions (5)
orium/rpds
Jul 2017 - Jan 2023
Rust persistent data structures
Role in this project:
Back-end Developer
Back-end DeveloperContributions:16 releases, 6 reviews, 224 commits in 5 years 7 months
Contributions summary:Diogo primarily focused on implementing and testing persistent data structures in Rust. They added extensive unit tests for the list data structure, contributing to its robustness. Furthermore, the user refactored the code base, turning warnings into errors by default and optimizing performance of the data structures. Additionally, they added the functionality of reversing a list.
persistent-datarustpersistent-data-structurepersistentdata-structures
hexchat/hexchat
Apr 2013 - Jan 2014
GTK+ IRC client
Role in this project:Back-end Developer
Back-end DeveloperContributions:71 commits in 9 months
Contributions summary:Diogo primarily contributed to bug fixes and improvements within the Hexchat IRC client's core functionality. Their work focused on areas such as server lag detection, the handling of numeric events, and the prevention of crashes when running as root. They also addressed issues related to autojoining channels and URL parsing, demonstrating a strong understanding of the IRC protocol and the client's internal architecture. Furthermore, the user added support for the server-time extension in the plugin interface.
weechatwindowslinuxirc-clientgtk
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