Sishan Long
Site Reliability Engineer at Alibaba Cloud
Mountain View, California, United States
Summary
👤
Senior🎓
Top SchoolSishan Long is a Site Reliability Engineer with a decade of experience building and scaling distributed systems, now based in Mountain View and currently at Alibaba Cloud. His background blends blockchain protocol design, consensus engineering, and SRE practices—work that spans Rust and Go implementations, CI/CD automation, and deploying a 1000-node geo-distributed network for Espresso Systems. A Cornell MSc graduate, he has published research on fair transaction ordering, decentralization forces in PoW systems, and ML-driven systems, reflecting a rare mix of rigorous research and production engineering. An ACM‑ICPC–seasoned competitive programmer, he brings strong algorithms expertise to protocol design and infrastructure reliability. Notably, he led Themis and contributed to a home‑grown Hotshot consensus stack, demonstrating an ability to turn novel distributed-systems research into operational networks.
10 years of coding experience
7 years of employment as a software developer
Master of Science - MS Computer Science, Master of Science - MS Computer Science at Cornell UniversityBachelor's degree Computer Science, Bachelor's degree Computer Science at Shanghai Jiao Tong University
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (11)
hash-algorithm10
ethereum10
blockchain9
fhe9
cryptanalysis9
trust9
rust8
cryptography7
zkp6
data-processing4
python4
Programming languages (6)
Github contributions (5)
EspressoSystems/optimism-espresso-integration
Jan 2025 - Apr 2025
Optimism is Ethereum, scaled, scaled.
Contributions:58 reviews, 14 PRs, 86 pushes in 2 months
dailinsubjam/Metis
Jul 2016 - Jul 2018
Contributions:155 pushes, 1 branch in 2 years
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