Paolo Barbolini
Chief Technology Officer at M4SS
Emilia-Romagna, Italy
Summary
🤩
RockstarPaolo Barbolini is a hands-on CTO and backend engineer with a decade of experience building and maintaining high-performance Rust systems from Emilia-Romagna, Italy. At M4SS he now leads technology while continuing to contribute to prominent open-source Rust projects—maintenance and feature work on crates like lettre, tokio, reqwest, sqlx and image reveal deep expertise in async runtime internals, networking, codecs and PostgreSQL integration. His contributions range from dependency and security upgrades in the rusoto AWS SDK to performance-minded codec optimizations in image-rs and wasm support in reqwest, showing a practical balance of maintenance, performance tuning and modern Rust idioms. Comfortable both managing teams and shipping low-level fixes, he has a track record of modernizing libraries (e.g., migrating to Rust 2018, removing unmaintained crates) and improving cross-platform compatibility. Notably, he remains an active maintainer of lettre and a regular contributor to core Rust infrastructure projects, signaling sustained influence in the Rust ecosystem.
10 years of coding experience
3 years of employment as a software developer
Stackoverflow
1reputation
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Github Skills (43)
asynchronous10
dependency-management10
library-design10
postgresql10
package-management10
async10
http10
time-management10
smtps10
io10
smtp10
decode10
networking10
decoding10
smtpd10
Programming languages (20)
Github contributions (5)
lettre/lettre
Nov 2019 - Jan 2023
a mailer library for Rust
Role in this project:
Back-end Developer & Library Maintainer
Back-end Developer & Library MaintainerContributions:19 releases, 192 reviews, 189 commits in 3 years 2 months
Contributions summary:Paolo primarily focused on refactoring and improving the `lettre` Rust library, specifically in the areas of SMTP communication and email encoding. They addressed code style issues, removed redundant code, and updated the code base to leverage more idiomatic Rust features like `serde` derive and by renaming the `serde-impls` feature to `serde`. The user also replaced the unmaintained `bufstream` crate with `std::io::BufReader` and improved the library's support for various async runtimes.
smtpsendmailmailmailerrust
pyrossh/rust-embed
Nov 2019 - Jan 2021
Rust Macro which loads files into the rust binary at compile time during release and loads the file from the fs during dev.
Role in this project:Back-end Developer
Back-end DeveloperContributions:31 commits, 7 PRs, 7 comments in 1 year 1 month
Contributions summary:Paolo primarily focused on maintaining and updating the `rust-embed` project. They updated dependencies, particularly for examples using Actix Web, Rocket, and Warp. They also made code improvements, including migrating to the 2018 edition of Rust and fixing warnings reported by clippy. Furthermore, the user updated the examples to use the RustEmbed trait directly and modernized dependencies.
compile-timedevrustproc-macrorust-macro
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