Partner 34, Lead, Security Engineering

About the role

We're hiring a Security Engineering Lead to build and shape a16z's security engineering team. This is a hands-on role - you'll spend a real portion of your time in AI security conversations, code reviews, architecture conversations, and the harder build decisions. You'll own application security, enterprise security and cloud security across the firm, and you'll partner closely with our internal engineering organization (ASG) on the security of everything they ship, including the AI tooling that's increasingly central to how the firm runs. You'll report to the Head of Cybersecurity and work day to day with the SecOps Lead, ASG, a16z's CTO and IT to make security show up as a partner, not a gate. Venture capital firms face targeted, sophisticated threats - capital call wire fraud, social engineering, vishing, and threat actors who specifically pursue firms in this space. Your work protects the firm, our LPs, and our portfolio companies. This role requires an in-office presence 2 days a week in our San Francisco, CA office. To join our team, you should be excited to: Own AppSec and CloudSec across AWS and GCP, including the roadmap, the tooling stack, and the engineering partnership Help secure a16z's AI work, including internal AI tooling, agent governance, model risk, and prompt injection defense Build a partnership with engineering where security shows up early, not after the fact Stay technical day to day - code reviews, architecture conversations, threat models, and the harder build calls Run and support cross-functional initiatives that span technical and non-technical teams across the firm, and own the relationships behind them