Martin is a Shiba Inu dad, a Miata enthusiast, a backcountry skier, and a technical domain expert in Risks, Fraud Detection, Payments, Fintech, and Disputes with a demonstrated history of experience in both tech startups and enterprises.

Experience

2021 — NowChimeSenior Software Engineer, Trust and Safety

2021 — Now

San Francisco Bay Area

Team lead on Disputes Engineering team.

Building the most delightful disputes user experience in the banking industry, minimizing fraud loss and operation costs for disputes, and ensuring Chime complies with the most up-to-date regulations.

Launched 0 to 1 self-service dispute products with the highest NPS score in the personal finance space.

2020 — 2021ChimeSoftware Engineer

2020 — 2021

San Francisco Bay Area

2018 — 2020WishSoftware Engineer, Risk & Payments

2018 — 2020

San Francisco Bay Area

The brain and muscle to fight buyer/seller frauds on Wish marketplace by leveraging data.

Busted merchant fraud rings on Wish marketplace using linkage analysis powered by Neo4j graph database.

A/B testing on multiple payment processors including Stripe, Braintree, PayPal, Klarna and etc in multi-region to optimize authorization for checkout.

2016 — 2017VisaSenior Software Engineer

2016 — 2017

Austin, Texas Area

Built VISA risk scoring platform dynamically serving real-time fraud detection models used by largest US banks including Chase, Wells Fargo, and BoA for CNP(Card not present) payment authorizations, and big merchants such as Southwest airlines and Home Depot.

2012 — 2013HPBusiness Analyst Intern

2012 — 2013

Taipei City, Taiwan

Procurement, Supply Chain, Printing & Personal Systems

Leveraged data to gain negotiation power for procuring LCD panels to supply HP worldwide laptop production.

Education

2014 — 2016

The Ohio State University

Master of Science (M.S.)

2014 — 2016

2009 — 2013

National Tsing Hua University

Bachelor of Science (B.S.)

2009 — 2013