Joshua Ulrich
St. Louis, Missouri, United States
Summary
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RockstarJoshua Ulrich is a Principal Quantitative Analyst with 18 years of experience translating complex market and system behavior into actionable business insights. He blends deep quantitative modeling (interest-rate models, market microstructure, asset allocation) with hands-on high-performance engineering in R, C/C++, C#, and Java, and a pragmatic, evidence-first approach to root-cause analysis in distributed systems. A longtime contributor to the R finance ecosystem—maintainer-style work on the widely used quantmod package—he focuses on uncovering data-generating processes and second-order effects rather than just correlations. Adept at turning technical complexity into clear stories for non-technical stakeholders, he pairs rigorous validation with production-grade implementation. Based in Missouri, he also organizes major R and finance conferences and runs FOSS Finance, offering R-based APIs, training, and optimization services.
19 years of coding experience
Stackoverflow
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7questions
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Github Skills (60)
missing-data10
datetime10
matrix10
append10
r10
finance10
forloop10
loops10
regex10
dataframe10
duplicates10
vector10
parallel-processing10
casting10
csv10
Programming languages (11)
Github contributions (5)
joshuaulrich/nxtime
Feb 2018 - Jun 2025
Contributions:1 push, 4 branches, 1 issue in 7 years 5 months
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