Felix Matenaar

Engineer, Leader, Advisor, Speaker

Email: felix.matenaar@gmail.com

LinkedIn: linkedin.com/in/felix-matenaar

Resume: Download PDF

Blog: Blog

Professional Summary

Engineering leader with 13 years of experience building secure, scalable systems at companies including Google, Asana, and Block. Proven track record of growing and leading high-performing teams, driving security strategy at the executive level, and delivering measurable business impact. Passionate about advancing security practices and enabling organizations to build trusted platforms.

Experience

Google, Mountain View

Engineering Manager (Present)

  • Finding needles in planet-scale haystacks, fast!

Asana, San Francisco

Engineering Manager, Head of Product Security (2022–2025)

  • Led security strategy across Product, Infrastructure, and Data Security functions
  • Directed a security organization of 30 engineers; coached managers to deliver measurable outcomes
  • Presented enterprise security risks to the board and secured executive funding for remediation
  • Established an AI security team for Asana's AI Studio, building trust through robust safeguards
  • Architected FedRAMP security and performance controls, enabling $37M in annual recurring revenue
  • Led incident response efforts to maintain customer trust and protect company reputation

Block (formerly Square), San Francisco

Software Engineer & Engineering Manager (2019–2022)

  • Built and led a team of 12 engineers addressing critical security challenges across all business units
  • Designed tamper-proof mobile point-of-sale systems, enabling payments expansion into international markets
  • Directed threat research initiatives and delivered advanced tamper detection capabilities
  • Implemented endpoint fingerprinting solution that reduced fraud-related losses by $10M annually

Google, Mountain View

Software Engineer, Technical Lead (2016–2019)

  • Created Cloud IAM Policy Intelligence, enabling least-privilege access for billions of users
  • Collaborated with machine learning teams to develop and launch IAM role recommendations
  • Conducted threat modeling for Chrome's supply chain, laying groundwork for Google's SLSA framework

Bluebox, Vera, Yik Yak — Bay Area Startups

Software Engineer, Security Researcher (2012–2016)

  • Early-stage startup experience (0 to 1) at companies later acquired, with patented technology and broad industry recognition
  • Full-stack software engineering across mobile applications and backend systems
  • Conducted security research leading to discovery of the Android Master Key vulnerability, presented at Black Hat USA
  • Developed patented anti-tamper and hook detection technologies for Android applications

Publications and Community Work

Education

RWTH Aachen University — Bachelor of Science, Computer Science (2008–2012)

  • Thesis research published at the IEEE MALWARE Conference
  • Competed in the DEF CON CTF hacking competition, Las Vegas (2012)
  • Focus areas: Mathematics, Security, Distributed Systems, Software Design and Testing

Hobbies

  • Track Days — Active participant in High-Performance Driving Events (HPDEs) throughout Northern California. Current personal best: 1:51.14 at Sonoma Raceway in a 2021 BMW M2 Competition.
  • Scuba Diving — Certified diver since 2020, with additional certifications in rescue diving, nitrox, drysuit, and introductory cave diving. Passionate about exploring underwater environments worldwide.
  • Travel — Explored 28 countries across all continents, with a curiosity for experiencing diverse cultures and landscapes.
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