Omar Barrera
Sr. Software Engineer -Backend at Clip
Greater Mexico City, State of Mexico
Summary
👤
Senior🎓
Top SchoolOmar Barrera is a senior backend software engineer with nine years of experience building and optimizing payment transaction cores, currently shaping Clip’s transactional flows and integrations from Mexico City. He has deep hands-on expertise in EMV tag handling, card-present and card-not-present flows (including Cybersource 3DS and American Express pre-auth/capture), BIN analysis, and reducing decline rates through processor and issuer troubleshooting. Omar pairs strong Java backend fundamentals with pragmatic automation—he’s built IA agents to monitor and alert on transactional anomalies—bringing both technical rigor and operational ownership. Versatile across enterprise and product environments, he’s focused on advancing his craft while delivering measurable improvements in payment success and user experience.
9 years of coding experience
4 years of employment as a software developer
Ingeniería Ingeniería de software, Ingeniería Ingeniería de software at Universidad Politécnica de Pachuca
Github Skills (22)
javascript10
windows10
linux10
rocket10
js10
macos10
nodejs10
jam9
ninja7
restful6
java6
mercurial5
ninjaframework5
full-stack5
libgit24
Programming languages (3)
Github contributions (5)
bacriom/BullyBot
Feb 2018 - Feb 2018
Contributions:41 commits, 21 PRs, 41 pushes in 12 days
slackbotslack-bot
bacriom/node
Dec 2017 - Jan 2018
Contributions:6 pushes, 5 branches in 21 days
node-jsjavascriptruntimejavascript-runtimenodejs
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