Sisu Xi
Member Of Technical Staff at Hebbia
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolSisu Xi is a Principal-level engineer with 12 years building high-stakes distributed systems, from sub-microsecond trading infrastructure to web-scale copyright protection and enterprise AI platforms. He specializes in turning multi-team coordination problems into self-serve platforms—examples include DMA compliance across 1,000+ engineers at Amazon, an authorization platform designed for 400x growth at Stripe, and an integration framework that cut onboarding cycles from 125 to 15 weeks. Pragmatic and metrics-driven, he surfaces hidden organizational costs (e.g., quantifying 28% developer overhead across 300+ engineers) and secures executive buy-in to deliver measurable reductions. His work blends deep research (Ph.D. in real-time systems, EMSOFT Test-of-Time Award) with product impact, shipping systems used at scale at Facebook, Google, Stripe, and Amazon. Based in New York, he now focuses on AI and infrastructure roles, bringing a rare combination of low-latency system design and large-org platformization skills.
12 years of coding experience
14 years of employment as a software developer
Research Assitant Computer Science and Techonology, Research Assitant Computer Science and Techonology at Beijing University of Posts and TelecommunicationsDoctor of Philosophy (Ph.D.) Computer Science and Engineering, Doctor of Philosophy (Ph.D.) Computer Science and Engineering at Washington University in St. Louis
English, Chinese
Github Skills (19)
summaries9
trading9
python9
backtesting9
finance9
metaclass9
deeplearning-ai9
backtesting-trading-strategies9
bit9
cryptocurrency8
trading-systems8
trading-bot8
trading-algorithms8
algorithmic-trading7
deep-learning6
Programming languages (2)
Github contributions (5)
xisisu/Leetcode.cpp
Nov 2015 - Sep 2016
Contributions:152 pushes, 1 branch in 10 months
xisisu/Leetcode.java
Jan 2017 - Feb 2017
Contributions:134 pushes, 1 branch in 28 days
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