Experience

Alembic Technologies, Inc.

• United States
• Software Development
• 1 - 100 Employee

• Chief Innovation Officer

  • Nov 2021 - Present

  San Francisco, California, United States

• CTO

  • Nov 2018 - Nov 2021

  San Francisco, California



Self

• Advisor, Angel Investor, Consultant. Security and scalability

  • Jun 2014 - Present

  san francisco, california



Bolt

• United States
• Software Development
• 200 - 300 Employee

• Head of Information Security

  • Mar 2015 - Mar 2017

  San Francisco Bay Area Founding member of information security team. Working on security issues related to the payments industry, user privacy, and compliance (PCI, ISO27001/27002, SAS70).



Twitter

• United States
• Software Development
• 700 & Above Employee

• Security Team Lead

  • 2008 - Jun 2014

  san francisco, ca As team lead for Twitter's first security team, I work on SSL performance at scale, cryptography, XSS/CSRF defense, malware defense, penetration analysis, security reviews, code reviews in Ruby/Rails, Java, Scala, PHP, Python, and C. I also educate our developers and engineers on security issues and continue to present at various industry conferences such as RSA, O'Reilly Velocity, Web 2.0 Expo, Defcon, and CloudComputing. I lead a team of 14 people, and every day we work to… Show more As team lead for Twitter's first security team, I work on SSL performance at scale, cryptography, XSS/CSRF defense, malware defense, penetration analysis, security reviews, code reviews in Ruby/Rails, Java, Scala, PHP, Python, and C. I also educate our developers and engineers on security issues and continue to present at various industry conferences such as RSA, O'Reilly Velocity, Web 2.0 Expo, Defcon, and CloudComputing. I lead a team of 14 people, and every day we work to defend the user's voice.

• Operations Engineer

  • 2007 - Mar 2010

  San Francisco As an early member (employee 13) of Twitter's Operations team, I took an site with less than 200,000 users and poor uptime to full stability and over 100M users, through careful application of configuration management tools (Puppet, custom python scripts), metrics, and capacity planning. I later founded the first security team at Twitter with Bob Lord. Applicable technologies: Linux, Ruby on Rails, Puppet, Java, Scala, Python, DNS, SSL, etc.



eLine

• IT Services and IT Consulting
• 1 - 100 Employee

• Sr Network Engineer

  • 2004 - 2007

  Network and Linux engineer for a boutique engineering shop catering to retail and independent video producers. I was responsible for building a multi site network using Foundry, Cisco, and Juniper devices to transcode video at large scale and to provide that video for sale as secure, pay-per-view downloads. I designed a media API in Ruby on Rails and lead PCI Compliance work for a Java based eCommerce site.



Apple

• United States
• Computers and Electronics Manufacturing
• 700 & Above Employee

• Sr Security Engineer

  • Aug 2003 - Mar 2004

  Designed monitoring systems to protect Apple's Corporate and Public facing networks. Designed company wide IDS using Snort, Bluecoat, and custom scripts. Worked on payments infrastructure for iTunes Store, iTunes for Windows. Assisted local and federal law enforcement with forensic analysis of Apple products. Trained in evidence collection by FBI.



IFILM

• Director, Software Engineering

  • 1999 - 2002