Alejandro Crosa
CTO & Co-Founder at Daffy
Cupertino, California, United States
Summary
👤
Senior🎓
Top SchoolAlejandro Crosa is a seasoned engineering leader and entrepreneur with 16 years building large-scale web and mobile products, currently serving as CTO and Co-Founder of Daffy in Cupertino. He has deep expertise in Ruby on Rails and iOS, having led product and platform efforts at LinkedIn, Twitter, Slack and startups, and shipped major features like Twitter’s World Cup timelines and enterprise iOS capabilities. Alejandro blends hands-on engineering with product instincts from prior founder and CPO roles, comfortable spanning backend APIs, high-availability databases, and polished client experiences. Known simply for “I care,” he pairs technical mentorship with a focus on mission-driven products that increase generosity and social impact. An early adopter of scalable architectures, he’s also acted as a company-wide Ruby specialist and trainer, showing a long record of lifting team capability beyond individual contributions.
16 years of coding experience
20 years of employment as a software developer
Universidad Tecnológica Nacional
English, Spanish
Github Skills (66)
composition10
producer-consumer10
swiftui10
architecture9
modularity9
ergonomics9
publish9
uikit9
testability9
producer9
message-passing8
unidirectional-data-flow8
uitextview8
testing8
messaging8
Programming languages (8)
Github contributions (5)
acrosa/kafka-rb
Oct 2011 - Jan 2016
A simple Producer/Consumer client for Kafka (a distributed publish/subscribe messaging service)
Contributions:10 commits, 2 PRs, 2 pushes in 4 years 4 months
publishpublish-subscribeproducermessage-passingmessaging
acrosa/scala-redis
Aug 2009 - May 2011
Contributions:4 commits in 1 year 9 months
hashingredisclient-sidescala-librarynodes
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