Qingni Y
Director, Fraud at Discover Financial Services
Greater Chicago Area United States
Summary
👤
Senior🎓
Top SchoolQingni Y is a Director of Fraud at Discover Financial Services with over a decade of deep expertise in credit card and payment network risk, specializing in first-party fraud strategy and real-time decisioning. She combines advanced data mining and analytics with business acumen to design linkage strategies, payment holds, and portfolio scrubs that materially reduce bust-out and synthetic fraud losses. Her work spans network analytics and merchant strategies across Discover’s global networks, and she has led cross-functional teams to build real-time infrastructure and streamlined operations for better customer experience. Technically fluent, she has contributed backend improvements to the high-profile Envoy proxy project—enhancing MySQL protocol support—which highlights her hands-on engineering instincts alongside strategic leadership. Known for strong ownership, people development, and a pragmatic focus on efficiency, she thrives in high-pressure environments driving measurable risk and revenue outcomes.
10 years of coding experience
10 years of employment as a software developer
Master Signal Processing, Master Signal Processing at Tsinghua University
French
Github Skills (12)
env10
proxy10
c-language10
envoyproxy10
cprogramming-language10
mysql10
convoy10
network-protocol9
vector9
gt8
refactoring8
refactor8
Programming languages (11)
Github contributions (5)
envoyproxy/envoy
Mar 2021 - Aug 2021
Cloud-native high-performance edge/middle/service proxy
Role in this project:
Back-end Developer
Back-end DeveloperContributions:90 reviews, 14 commits, 23 PRs in 5 months
Contributions summary:Qingni primarily focused on improving the MySQL proxy codec within the Envoy project. Their contributions involved refactoring the build struct, replacing string-based auth fields with vectors, and implementing special handling for the decoder during the command phase. They also worked on connection attributes parsing and addressing potential bugs related to the check_format tool. These changes indicate a strong involvement in enhancing the MySQL protocol support within Envoy's proxy functionality.
nanoservicesmore-catsgolangcontainersproxy
qinggniq/ticdc
Jul 2020 - Jul 2021
Change data capture for TiDB
Contributions:152 pushes, 12 branches in 1 year
data-capturedatabasechange-data-capturetidb
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