• Lead security architecture/design review and threat modeling sessions with product and engineering teams using STRIDE, PASTA and attack tree methodologies. • Translate threats into actionable, risk-rated engineering remediations prioritized by severity. • Conduct hands-on penetration testing and security assessments across our full product stack producing actionable reports for engineering and leadership. • Red-Team our AI powered products and development tools to test for prompt injection, data exfiltration, MCP server exploitation, and tool misuse. Probe AI guardrails to ensure they hold. • Drive PSIRT Operations by triaging incoming vulnerability reports, leading technical investigations, coordinating remediation with engineering, scoring severity (CVSS), managing coordinated disclosure with external researchers and on-call incidents. This includes managing zero day findings, driving remediation, collaborating with engineering to patch or mitigate with compensating controls. • Shape the posture of our AI assisted development environment defining and enforcing enterprise policies for claude and cursor. • Partner across the organization, sitting in design review with architects, advising product managers and engineering teams on security and compliance implications of new features, briefing executives on emerging AI threats, mentoring junior security engineers and collaborating with the AI team on securing ML pipelines. • Champion Security Culture by running developer training on secure coding with AI assistants, evangelizing security by design for products and ensuring every engineer understands that product security is an enabler and not a gate.