Jonathan Cooper
Lead Application Security Engineer
Dublin, Ireland
Summary
👤
Senior🎓
Top SchoolJonathan Cooper is a Lead Application Security Engineer with 12 years of experience designing and operationalizing security for payment and fintech systems across Python, Go, Kotlin, and Java. Based in Dublin, he has led security programs at Amazon Payments and Millennium, automating secrets detection and classification with AI agents and driving threat modeling and remediation at scale. His background spans hands-on roles from CTO and founder of a payments startup to senior consultancy work in penetration testing, malware analysis, and embedded security engineering for banks. Jonathan blends practical engineering with security leadership—reducing review times from hours to minutes and embedding automated controls into development lifecycles. A Jamaican hacker at heart, he focuses on privacy and fintech, pairing entrepreneurial grit with a proven track record of making complex systems auditable and resilient.
12 years of coding experience
11 years of employment as a software developer
BSc., Computer Science, BSc., Computer Science at University of the West Indies, Mona Campus
English, Spanish, Dutch
Github Skills (28)
infosec9
proxy9
http9
tdameritrade9
pentesting9
security8
iptables8
ssrf8
server-administration7
server-side7
rest-api6
cli6
hacking6
wallet6
openvpn6
Programming languages (7)
Github contributions (5)
JonCooperWorks/implant
May 2017 - Apr 2019
Contributions:98 commits, 10 pushes, 5 branches in 1 year 10 months
JonCooperWorks/dyson
Mar 2026 - Jul 2026
Contributions:24 PRs, 358 pushes, 118 branches in 4 months
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