• Led pod of 3 engineers and 6 XFNs to measure and prevent API messaging scams, a company priority. Defined the problem space, created 5-month strategy, and educated Director-level stakeholders across 2 orgs. Prevented 39B daily violating messages to 17B users and $10M lifetime fraudulent ad revenue.

• Defined problem space and led 6-month strategy to prevent bot abuse of $30M creator incentive fund. Grew the working team from 1 to 8 people across 3 orgs by making the case for resourcing at the Director level. Built 0→1 detection and enforcement systems for bot abuse, preventing projected $4.2M in fraudulent payouts. Set 8% regrettable payout target with Director-level stakeholders; exceeded at 4.7%. Contributed to CTO metrics readout.

• Built automated enforcement systems now delivering 568K annual enforcements of high-risk developers. Defined the problem space, created 6-month strategy, and led 3 engineers from design through rollout.

• Modernized company-wide authentication infrastructure; aligned ownership across 7 orgs, unblocking mitigation of systemic risks tied to prior SEV1s, user data exposure, and $260M annual revenue leakage.

• Mentored 5 engineers (IC5 to intern); helped multiple reach next level through coaching on technical leadership, code quality, and team scope.

• Owned FTC compliance reporting and audit across 3 enforcement systems; identified 18 noncompliant products and drove fixes with Eng, Legal, and Policy

Built full-stack recommended videos feature (React, GraphQL) with ML-powered recommendations and caching layer; shipped via A/B testing.

Taught Discrete Math, Probability Theory, and CS61A (4 terms). Authored lab assignments and course content for 500+ students.