Rui Baltazar
Engineering Lead at Wise
Singapore
Summary
👤
Senior🎓
Top SchoolRui Baltazar is an engineering lead based in Singapore with 12 years of experience building and operating full-stack web platforms and leading small, cross-functional teams. He holds a Master’s in Computer Science from the University of Coimbra and has progressed from hands-on roles (CTO/co‑founder, senior/full‑stack developer) to leadership positions at Perx, Zeus Living and Wise. Rui blends backend expertise in Ruby on Rails and DevOps with frontend experience (Vue, Knockout) and a track record of shipping product-focused systems, including a sports-tech platform he co‑founded. He’s an active open-source maintainer in the Ruby/Rails ecosystem—improving multi-tenancy support for the widely used apartment gem and modernizing CI and tooling. Comfortable in multicultural environments, he pairs pragmatic engineering with organizational skills and an unusual personal balance: software engineering by week, scuba diving on weekends.
12 years of coding experience
12 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at Universidade de CoimbraHigh School, High School at Escola Secundária Infanta D. Maria
Portuguese, English, Spanish, Italian
Stackoverflow
801reputation
119kreached
15answers
2questions
Github Skills (13)
ruby10
ruby-rails10
rails10
devops10
package-development10
testing9
rubocop9
database-management8
android6
ionic6
google-play-services6
scopes6
ruby-on-rails6
Programming languages (12)
Github contributions (5)
rails-on-services/apartment
Dec 2019 - Feb 2022
Database multi-tenancy for Rack (and Rails) applications
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:15 releases, 25 reviews, 373 commits in 2 years 2 months
Contributions summary:Rui primarily focused on improving the Rails 6 support for the `apartment` gem, which included updating JRuby versions, modifying the Travis CI configuration, and fixing Rakefile issues. They also prepared and released a new version of the gem with hotfixes. In addition, the user added RuboCop to the project and performed various cleanup tasks. The contributions demonstrate a focus on maintenance, upgrades, and improving the quality of the gem.
ruby-on-railsrails-applicationsrailsrackruby
story-branch/todo_agent
Apr 2019 - May 2023
Searches the code for TODOs and creates issues in the configured tracker
Contributions:1 release, 5 PRs, 26 pushes in 4 years 1 month
searchestrackertodosnodejstypescript
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