Alexandru-emil Lupu
Open Source Software Maintainer For Decidim at Lupu Alexandru-Emil PFA
Bucharest, Romania
Summary
🤩
Rockstar🎓
Top SchoolAlexandru-emil Lupu is a seasoned Ruby on Rails developer and team lead with 14 years of professional experience and over a decade focused on Rails, specializing in rescuing and modernizing legacy systems for production scale. He has led major Rails and Ruby upgrades, optimized high-traffic platforms (eJobs, eRepublik, 2Performant) and cut infrastructure costs while improving reliability through CI/CD and observability. As a prolific Decidim contributor and core maintainer, he’s reviewed thousands of PRs and delivered features used by large civic deployments (including platforms with millions of users), contributing deep expertise in APIs, performance instrumentation and event-driven architecture. Comfortable across infrastructure (AWS, Docker, Redis, PostgreSQL) and developer experience improvements, he regularly stabilizes apps ahead of scaling or new feature work. He’s available for short-term “rescue” projects, performance audits and legacy Rails upgrades, and often surfaces non-obvious gains by refactoring test suites and replacing outdated libraries to speed development and reduce risk. Based in Bucharest, he blends hands-on debugging of complex production incidents with strategic architecture and open-source stewardship.
14 years of coding experience
14 years of employment as a software developer
Faculty of Mathematics and Computer Science, Faculty of Mathematics and Computer Science at University of Bucharest3, Mechanics, 3, Mechanics at Universitatea „Politehnica” din București
English
Github Skills (14)
rails10
back-end-development10
ruby-on-rails10
api-design10
postgresql9
activerecord9
data-export8
testing8
performance-monitoring8
par7
cooperation7
e-government7
open-data7
g7
Programming languages (10)
Github contributions (5)
decidim/decidim
Sep 2020 - Jan 2023
The participatory democracy framework. A generator and multiple gems made with Ruby on Rails
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 releases, 3834 reviews, 193 commits in 2 years 4 months
Contributions summary:Alexandru-emil primarily contributed to the back-end functionalities of the `decidim/decidim` project, focusing on fixing namespace issues in controllers, addressing errors related to missing organizations, and implementing instrumentation for performance monitoring. The contributions also included adjustments to remove deprecation warnings, and the creation of an open data export process for data portability, indicating expertise in database interactions, API design, and back-end service development within a Ruby on Rails environment. The commits touched on code in multiple gems, indicating an understanding of the whole project structure.
participatory-democracycivic-techgovernmentdemocracyparticipation
alecslupu-pfa/decidim
Sep 2020 - Apr 2021
The participatory democracy framework. A generator and multiple gems made with Ruby on Rails
Contributions:30 PRs, 61 pushes, 33 branches in 7 months
ruby-on-railsparticipatory-democracyrailsrubygems
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.