Julian Espinel
Software Engineer at Square
United States
Summary
👤
Senior🎓
Top SchoolJulian Espinel is a seasoned backend-focused software engineer with 12 years of experience building and scaling distributed systems across fintech, communications, and e-commerce. He has progressed from hands-on engineering to technical leadership—leading a 23-person platform team at Masiv and now contributing to Square—while routinely improving throughput (examples include 16x and 18x capacity gains) and reducing operational toil. His toolbox spans Java, Go, Python, Kafka, Terraform and cloud-native patterns, and he has experience creating custom Terraform providers and rate-limiting/accounting systems in production. Julian pairs mentorship and architecture guidance with a practical emphasis on testing and deployability, having trained product owners and recruiters to bridge technical communication gaps. He brings a track record of turning performance bottlenecks into robust, maintainable services and a curiosity for cross-language solutions that optimize cost and reliability.
12 years of coding experience
9 years of employment as a software developer
Universidad de los Andes
English, Spanish
Stackoverflow
3,082reputation
864kreached
35answers
1question
openssl
top-5%
docker
top-5%
Github Skills (95)
dashboard10
postgresql10
rust-lang10
keyboard10
compiler10
rust10
database10
stock10
macos-sierra10
karabiner10
slack10
visualization10
standard-library10
docker-compose9
metabase9
Programming languages (13)
Github contributions (5)
granpanda/mofficer
Jul 2014 - Oct 2015
Contributions:42 commits, 14 pushes, 9 tags in 1 year 2 months
granpanda/autheo
Apr 2014 - Jan 2016
Contributions:3 releases, 48 commits, 16 pushes in 1 year 9 months
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