Martinez, California, United States
An agile, radically-candid data leader who leverages data and teams to build world-class programs and systems for fighting fraud and cyber crime at any scale.
Commissioner for the newly formed City of Martinez Diversity and Cultural Commission. Appointment confirmed by Martinez Mayor Zorn and the city council at large.
Evolving, centralizing and automating Capital One's Cyber Threat capabilities. Specializing in operational and process driven Data Science solutioning and implementation. Drove reevaluations of multiple operational scoring models in the cyber threat ecosystem. Also responsible for mentoring of Data Science CSDP trainees.
Builder of world-class Risk and Fraud prevention ecosystems. Oversee Incident response, daily monitoring and alerting, analytics & ops investigations, ecosystem-wide rule management and QA, technical product development and review, and process/system automation. Well versed in all aspects of Chime's fraud risk ecosystem, including identity, disputes, merchant acquirers, transactions, ACH and P2P networks. On the personal side, I mentor analysts of all levels in SQL and Python DSML and likewise host weekly SQL trainings which have had over 100 students learn SQL under my tutelage to date.
Founded the Risk Mission Control program at Chime. Head of day-to-day Risk Ecosystem strategy, building and operations functions. Strategy functions involve planning for future Risk Ecosystem needs, including for analytics, investigations, engineering and member experience teams. Sole product owner of Chime’s internal Rules Engine, DecisionPlatform (DecPlat). Responsible for building and enforcing QA standards and strategies, building auditing and tracking automations/scriptings, and maintaining overall operational best practices through documentation and education. Oversaw testing and deployment of dozens of rule deployments per week across all areas of Chime’s Risk exposure. Developed Risk Ecosystem daily monitoring and real time alerting. Responsible for building the tools, dashboards, strategies and team rotations to enact daily on-call monitoring of Chime Risk Ecosystem metrics and create a culture of rapid Risk accountability. Oversaw on-call rotations of, at-times, up to a dozen individual contributors. Responsible for overseeing the quality and accuracy of their analytics investigations and ensuring they are upleveled to where Risk Mission Controls needs dictated. Owner of Risk Incident Response functions. Built alerts, strategies and playbooks for detecting and responding to Risk incidents in real time, including fraud risk, outage risk and reputational risk. Oversaw day-to-day operations of Risk Mission Control program, including delegating investigation assets for emerging daily risk events, handling incident coordinator functions for the Risk team, coordinating Risk Rule QA and Risk Engine testing efforts, and building for future needs.
Head of Chime’s Risk Incident Monitoring program. Developed the systems and processes for monitoring and responding to much of Chime’s day-to-day risk environment in real time. Led the incident monitoring program and oversaw all development. Led Chime Risk’s device blocking program, writing algorithmic device risk scoring methodologies which, in combination with tailored risk rules, directly prevented $10’s of millions of dollars in illicit funds movement. Developed and led Chime Risk’s mentorship program. The program provides structured mentoring curriculum for anyone in the Chime Risk org looking to learn new skills from established professionals. Over a dozen mentees have “graduated” the program’s structure under 4 different mentors. Risk lead for building, monitoring and controls for business critical, billion dollar programs such as 2021’s Payment Protection Program (PPP) Loans, 2020 Covid unemployment disbursals (Federal & State), and yearly tax season refund disbursals. Risk lead for consumer facing Risk products such as anti-harassment controls and preferred names products. Experienced in dealing with Account Takeover fraud, Synthetic Identity fraud, Transaction fraud, ACH fraud as well as many other fraud types. Head of OutChime Product Pillar. Developed Preferred Names with Chime program on behalf of OutChime. Developed and launched 3 consumer facing Preferred Names products with more in development.
Investigated merchant accounts for various types of fraud (e.g., “ATO’s,” “Mules,” “Card Cashing,” etc.) and for compliance with Stripe Terms of Service. Specialized in fraud-related investigations, specifically investigating account takeovers (ATO’s/Mules) and fraudulent merchant accounts (Card Cashers). Devised and advanced many experimental review types and updates to older methods. Founded and led Stripe Rainbows, Stripe’s LGBTQIA Employee Resource Group (ERG). Planned and hosted community building events, led partnership outreach, recruitment efforts, and internal policy reviews.
Lead contact for all VIP clients. Consulted with prospective college students and their parents to guide them through the university application process from start to finish. Helped students to prepare for all tests and interviews that the students needed to take. Responsible for all English language and Chinese to English translated course material as well as company documents. Taught monthly seminar classes on a variety of subjects in order to simulate a college environment for the students. Majority of students were accepted to top-tier American universities such as New York University, Columbia, Brown and Dartmouth.