Cagri Cetin
Engineering Manager at Yelp
San Francisco Bay Area United States
Summary
👤
Senior🎓
Top SchoolCagri Cetin is an engineering manager in the San Francisco Bay Area with 13 years of experience building secure, production-grade infrastructure and access controls. He currently leads Yelp’s technical IAM roadmap and a team of six, driving a multi-year vision to enforce principle of least privilege across database, financial, and corporate systems. His background blends rigorous academic research—a PhD focused on passwordless and collaborative authentication, cryptographic key generation, and SQL-injection analysis—with hands-on engineering shipping authorization systems for Kubernetes and Linux at scale. He has delivered cross-team access portals that speed provisioning, increase telemetry, and automatically revoke unused permissions, and he regularly presents at KubeCon and DevSecCon. Earlier work includes mobile contributions to the widely used OneBusAway Android app and automated analysis of 120k+ Java files to surface large-scale injection vulnerabilities. Colleagues describe him as a technical coach who pairs deep security expertise with empathy for team growth and cross-functional collaboration.
13 years of coding experience
9 years of employment as a software developer
Doctor of Philosophy (Ph.D.) Computer Science, Doctor of Philosophy (Ph.D.) Computer Science at University of South FloridaBachelor of Engineering (BE) Computer Science and Engineering, Bachelor of Engineering (BE) Computer Science and Engineering at Yıldız Teknik Üniversitesi 
English, Turkish
Stackoverflow
1reputation
0reached
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Github Skills (10)
android-developers10
android-developer10
mobile10
javas10
ios10
android10
google-analytics10
java10
architecture8
architectures8
Programming languages (3)
Github contributions (5)
OneBusAway/onebusaway-android
Dec 2014 - Jul 2019
The official Android app for OneBusAway
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:71 commits, 74 PRs, 264 comments in 4 years 8 months
Contributions summary:Cagri implemented Google Analytics tracking within the OneBusAway Android application, adding instrumentation for various user actions, including UI interactions, stop distances, and screen views. They also added code for user feedback. The contributions involved modifying Java code within the `com.joulespersecond.oba` and `org.onebusaway.android` packages to incorporate analytics events and reporting mechanisms using Google Analytics. Furthermore, the user made changes to account for the app's integration with the Amazon Fire phone and other improvements to the Open311 feature.
phoneonebusawayandroidphone-appandroid-app
cagryInside/arMobile
Nov 2012 - Feb 2016
Contributions:4 commits, 2 pushes in 3 years 3 months
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