Guillermo Leal
Big Data Engineer
Aranda de Duero, Castile and León, Spain
Summary
👤
SeniorGuillermo Leal is a Big Data Engineer with 17 years of hands-on experience focused on building and operating real-time data pipelines. Based in Aranda de Duero, Spain, he currently drives streaming and analytics solutions at Vonage, turning complex event flows into reliable, production-ready systems. His career blends long-term community involvement—over a decade with Mozilla Hispano—with practical expertise in scaling data infrastructure. Guillermo is pragmatic and results-oriented, favoring observable, maintainable designs that reduce operational toil. Colleagues value his ability to translate business needs into performant pipelines and to mentor teams on best practices for real-time data.
16 years of coding experience
English
Stackoverflow
21reputation
429reached
1answer
0questions
Github Skills (161)
opentok10
tokbox10
command-line-tool10
javascript10
notification-server10
pm210
push-notifications10
firefox10
notification10
php-server10
user-agent10
git-mirror10
nodejs10
bit10
mozilla10
Programming languages (11)
Github contributions (5)
telefonicaid/notification_server
May 2012 - Sep 2014
Push Notification Server for the open web.
Contributions:568 commits in 2 years 4 months
pushnotification-serverpush-notificationsnotificationspush-notification
mozillahispano/twitta
Aug 2014 - Jan 2015
Twitter client with ♥ for Firefox OS
Contributions:45 commits, 2 pushes, 1 comment in 5 months
firefoxtwitter-clientfirefox-addontwittermozilla
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