Hello there! I'm a software engineer based in London, UK. I currently work at Twitter.

Occasionally, I blog about things I think are interesting to share. Check out my blog, or my latest post: Over-engineering my TV watching - Part 1: bypassing geo-block with a custom reverse proxy.

Previously I worked at ASOS as an iOS engineer, where my day-to-day work was primarily Swift-based, although I made significant contributions to tooling and the CI/CD stack (using a mixture of Ruby and shell scripts). During my tenure, I've diagnosed multiple production issues (even non-iOS related), made numerous improvements to automation and release processes, learned how to use tools such as New Relic and brought multiple features from inception to completion, managing communication with product owners and third parties.

In 2016 I was selected as one of the first 100 students to attend the Apple Developer Academy. In 2017 and 2019 I was selected by Apple as one of the 350 worldwide students to receive a scholarship to attend Apple's Worldwide Developer Conference in San Jose, CA. The projects I submitted for both are open source! In 2021 I graduated from Università degli Studi di Napoli "Federico II", obtaining a BSc in Computer Science with a final score of 110/110.

Here are some cool projects I was involved in:

  • I am one of the core developers of "ESOL", an official app of Università degli Studi di Napoli "Federico II" used by all the students of one of the most important universities in Italy, published on both Android (React Native) and iOS (Swift).
  • I love web development and Vue.js, and while I made several non-public projects with it, I open-sourced a multi-platform app (Electron) and webapp to graphically simulate some simple CPU scheduling algorithms and strategies.
  • I like Rust and I open-sourced plus485, a software to extensively query and format information from a particular kind of energy meter and oxixenon, an expandable tool with its own protocol and client to abstract and handle "connection restarts" (i.e. obtaining new external IP addresses). Both tools were deployed on embedded systems which required cross compilation, and I manually handled the whole process.
  • While old fashioned, I really like Perl (CPAN profile) and made quite a few projects with it. Some honorable mentions include WWW::Telegram::BotAPI, the de facto implementation of Telegram's Bot API in Perl, and clooster, a tool (mostly created for fun) to create a "fail-over DNS record" which points to the first online server in an array of two.
  • I was responsible for the design, development and deployment of all of the backends behind my team's apps during my stay at the Apple Developer Academy. I used modern PHP, PostgreSQL as the RDBMS and when needed, Perl with Mojolicious for realtime purposes (e.g. websockets, pub-sub).

You can reach me at roberto [at] frenna [dot] pro. Feel free to check out my GitHub, and you can find me on LinkedIn and Keybase too.