Will Duan
Andover, Massachusetts, United States
Summary
🤩
Rockstar🎓
Top SchoolWill Duan is a PhD candidate in Operations Research at Columbia with a strong foundation in financial engineering and a BS in Mathematics from Emory, combining deep quantitative training with 11 years of hands-on software experience. He bridges finance and systems engineering—building NLP pipelines for ESG extraction from SEC filings at Morgan Stanley while contributing to Temporal's replication and distributed systems features on GitHub. Proficient in Python, Java, C++, R, and MATLAB, he applies machine learning, optimization, and Monte Carlo simulation to real-world problems and speaks fluent Mandarin. He also has experience designing and teaching K–9 computer science curricula, showing a talent for translating complex technical concepts for diverse audiences.
11 years of coding experience
Columbia University in the City of New YorkBachelor of Science - BS, Mathematics, 3.945, Bachelor of Science - BS, Mathematics, 3.945 at Emory UniversityDoctor of Philosophy - PhD, Operations Research, Doctor of Philosophy - PhD, Operations Research at Columbia University
Github Skills (8)
distributed-systems10
go10
api10
replication10
back-end-development10
temporal10
grpc9
state-machine8
Programming languages (1)
Github contributions (2)
temporalio/temporal
Jul 2023 - Apr 2025
Temporal service
Role in this project:
Back-end Developer
Back-end DeveloperContributions:225 reviews, 217 PRs, 459 pushes in 1 year 8 months
Contributions summary:Will's contributions primarily focused on enhancing the Temporal service's replication capabilities. They implemented a new API to retrieve namespaces from a remote cluster and integrated an eager namespace refresher into the replication process, demonstrating expertise in distributed systems. The user also worked on generating transaction IDs for events and adding features like the "ReplicateHistoryEvents" API for handling deserialized history events, which facilitates efficient batch processing of replication tasks. Furthermore, they introduced a tiered replication stream receiver and added logic to handle replication tasks when a namespace is in a deleted state.
service-busmicroservice-orchestrationworkflow-automationworkflow-enginedocker
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