Rafael Cupello
Cyber Security Manager (AppSec Automation Red Team)
Rio de Janeiro, Brazil
Summary
👤
Senior🎓
Top SchoolRafael Cupello is a bilingual (Brazilian with Spanish citizenship) cyber security manager and former senior engineer with over a decade building scalable, high-performance systems and leading AppSec automation at one of Latin America’s largest e-commerce companies. He combines deep hands-on experience in Clojure, Go and Java with cloud-native architectures (Kubernetes, AWS) and a strong security toolkit—designing and operating Shift-Left pipelines, SAST/DAST/IaC workflows, and practical attack-surface testing. Rafael has led migrations from monoliths to microservices, rewrote and boosted performance of a key open-source project by 60%, and moved critical flows from Oracle to modern, fault-tolerant stacks (Cassandra, Kafka, MongoDB). He founded and grew his company’s first AppSec and Automation teams, saved vendor costs through security-driven vendor assessments, and earned tangible bug-bounty rewards while running large-scale load testing and serverless cost optimizations. Known for bridging developer productivity and security, he mentors language and platform migrations to broaden contributor communities and accelerate delivery.
11 years of coding experience
7 years of employment as a software developer
Bacharel, Ciência da Computação, Bacharel, Ciência da Computação at UERJBacharel, Ciências Sociais, Bacharel, Ciências Sociais at UFRJ - Universidade Federal do Rio de JaneiroEstácio de Sá University
Portuguese, English
Github Skills (75)
query-language10
cybersecurity9
proxies9
microservices9
chaos8
api-management8
consul8
security8
kubernetes8
dns-resolver7
golang7
istio7
service-mesh7
rest7
disclosure7
Programming languages (8)
Github contributions (5)
cupello/restQL-clojure
Dec 2018 - Jun 2020
Microservice query language
Contributions:102 pushes, 16 branches, 6 comments in 1 year 5 months
querygroovyquery-languageclojure-specmicroservices
b2wdigital/restQL-http
Apr 2017 - Aug 2020
Microservice query language
Contributions:40 releases, 63 PRs, 92 pushes in 3 years 4 months
microservicesquery-language
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.