Joe Rozner Email & Phone Number

Los Angeles, CA, US

Sunnyvale, CA, US

Developed Disruption Engineering, a program focused on proactive discovery of security issues and solutions to themLead off�ensive security, security engineering, and bug bounty teamsParticipated in and oversaw design and development of technical solutions to mitigate systemic weaknessesCareer development of team members (management and IC) ranging from.

Sunnyvale, CA, US

Lead the Yahoo Red Team and grew it into a larger Offensive Security program adding a Vulnerability Research and Adversary Insight teamsCareer coaching and development for members of the teamDrove remediation projects that mitigated entire classes of vulnerabilities for the entire company including: phish resistant MFA rollout, hardware backed key storage.

Sunnyvale, CA, US

Scoped and conducted Red Team operations against Yahoo corporate and production productsSource code auditing, vulnerability discovery, and exploit developmentDevelopment of ASHIRT, an open source telemetry platform for managing operational evidence and reporting

Marina Del Rey, CA, US

Product design for Prevoty RASP tooling including core features, UI, and UXDevelopment of static analysis engines for various vulnerability classes including SQLi and XSSDevelopment of novel zero change drop in CSRF prevention productDevelopment of instrumentation tooling for Java, PHP, and RubyProfiling and optimization of performance critical codeProduct.

Development of Ruby on Rails application to serve Mulu advertising widget and backend management toolingProfiling and optimization of performance critical codeFrontend development of advertising widget

Aliso Viejo, California, US

Development of One Login SSO applicationProfiling and optimization of performance critical codeDevelopment of Cloud Search, an application capable of searching federated applications in parallel on behalf of a user and providing aggregated results in a spotlight like interface

Northridge, CA, US

Completed and maintained an inventory management and reporting system for the Language Lab.Built backend system for submitting budget requests used by the campus for allocating the Campus Quality Fee with PHP.Built application, used by the Center on Disabilities, to manage accommodations for students with disabilities. Integrated with the campus directory.

Mountain View, CA, US

Designed and developed new web application for the MacPorts project using Ruby on RailsWrote software to migrate denormalized data into a normalized relational databaseDeveloped tools, using the new application, to find bugs in current package specifications and automatically report issues

Developed and maintained administrative interface for website built in PHPIdentified and fixed security vulnerabilities including SQL injection, XSS, and CSRFOperations and administration of production LAMP environment