Lucas Welti
Senior Engineering Manager, Internationalization
Portugal
Summary
👤
Senior🎓
Top SchoolLucas Welti is a seasoned engineering leader specializing in internationalization, with over two decades of experience designing global-ready products for companies like Yahoo!, PayPal, and Zendesk. He builds scalable engineering processes and roadmaps, reduces localization defects through technical initiatives, and has driven measurable gains such as a 30% improvement in development velocity at Zendesk. A hands-on architect for mobile globalization, he created i18n libraries and playbooks and helped teams integrate localization tooling and Node.js libraries across large products. Lucas excels at coaching distributed teams, bridging product and business strategy, and deploying platforms into local markets—work that earned multiple Yahoo! Odyssey awards and a Yahoo! Super Star recognition. Based in Portugal and fluent in cross-market delivery, he combines a technical foundation in computer science with executive training from MIT Sloan and negotiation insights from Harvard Law School. Less obvious: he pairs a deep focus on innovation and experimentation with practical operational rigor, routinely turning localization complexity into repeatable engineering practices.
10 years of coding experience
25 years of employment as a software developer
High School, High School at Colegio HumboldtSeminar, Dealing with Emotions in Business Negotiations, Seminar, Dealing with Emotions in Business Negotiations at Harvard Law SchoolExecutive Program, Building, Leading and Sustaining the Innovative Organization, Executive Program, Building, Leading and Sustaining the Innovative Organization at MIT Sloan School of ManagementBachelor, Computer Science, Bachelor, Computer Science at Universidad de las Américas PueblaA Crash Course in AI, Computer and Information Sciences and Support Services, A Crash Course in AI, Computer and Information Sciences and Support Services at Stanford Continuing Studies
English, Spanish, German
Github Skills (39)
cldr10
translation9
json-data9
internationalization9
parser9
intl9
icu9
localization9
unicode8
globalization8
formatter8
json7
javascript7
css7
zendesk7
Programming languages (5)
Github contributions (5)
lwelti/intl-name-initials
May 2017 - Jun 2017
Contributions:10 commits, 4 PRs, 27 pushes in 24 days
initials
lwelti/globalize
Aug 2018 - Aug 2018
Contributions:1 push in 1 day
l10njavascript-libraryleveragestranslationjavascript
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