John Cosentino
Software Engineer at American Express
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolJohn Cosentino is a pragmatic software engineer with 11 years of experience building resilient web applications and migrating legacy systems to modern stacks, currently contributing at American Express in New York. He pairs front-end expertise in React and Angular with back-end Java/Spring experience, having converted proprietary frameworks and Go services into robust Spring endpoints and implemented CI/CD pipelines with GitLab, Docker, and OpenShift. His work spans performance tuning—optimizing SQL for large exports—and real-time reactive UI patterns used by thousands of internal users. A City University of New York computer science graduate who also studied in Tokyo, he brings cross-cultural curiosity and a history of automating tedious workflows (e.g., bulk PDF generation and internal parsing tools) that improve operational efficiency.
11 years of coding experience
3 years of employment as a software developer
Study Abroad - Tokyo, Japan, Japanese International Business, Study Abroad - Tokyo, Japan, Japanese International Business at Rikkyo UniversityBachelor's Degree, Psychology, 3.3, Bachelor's Degree, Psychology, 3.3 at City University of New York-College of Staten Island
Spanish, English
Github Skills (102)
windows10
yubikey10
firefox-addon10
security10
greasemonkey10
ublock-origin10
webextension10
thunderbird10
keepass10
windows-application10
linux10
chromium10
browser10
disable10
firefox10
Programming languages (8)
Github contributions (5)
jcosentino/Parking-Garage-Assignment
Dec 2017 - Apr 2022
Contributions:3 pushes, 3 branches in 4 years 5 months
jcosentino/Fit-Algorithms-CSC305Lab2
Dec 2017 - Apr 2022
Contributions:3 pushes, 3 branches in 4 years 5 months
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