Henry Simmons
Principal Data Scientist
Bristol, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolHenry Simmons is a Principal Data Scientist with eight years of experience building data-driven products and models, currently leading analytics at Envelop Risk after progressing through roles from Data Scientist to Principal. He combines a strong scientific background—MChem from Durham and early research internships in chemistry and NMR—with practical production experience in risk analytics and machine learning. As part of the inaugural Welsh Data Science Graduate Programme cohort, he completed immersive placements while earning a masters, demonstrating adaptability across industry settings. He contributes to open-source finance tooling, notably fixing Reddit API authorization and robustness issues in the widely used OpenBB project, showing attention to reliable back-end integrations. Based in Bristol, Henry brings a blend of rigorous experimental thinking and pragmatic engineering to complex data problems, and he has a track record of improving system reliability under real-world API constraints.
8 years of coding experience
3 years of employment as a software developer
MChem Chemistry, MChem Chemistry at Durham UniversityColyton Grammar School
Github Skills (7)
apim10
r-api10
error-handling10
api10
python10
finance9
quantitative-finance8
Programming languages (5)
Github contributions (5)
OpenBB-finance/OpenBB
Mar 2021 - Mar 2021
Investment Research for Everyone, Everywhere.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 1 PR, 1 comment in 1 day
Contributions summary:Henry primarily addressed authorization errors in the Reddit API integration within the OpenBB finance project. They modified several functions across multiple files related to sentiment analysis, specifically around Reddit data retrieval. Their changes included adding error handling, refining exception handling, and adjusting control flow with returns to manage API response errors more effectively.
stock-marketpythonalgorithmic-tradingmachine-learningtrading
henrytdsimmons/streamlit-example
Aug 2021 - Dec 2023
Example Streamlit app that you can fork to test out share.streamlit.io
Contributions:5 pushes in 2 years 4 months
pythonsharestreamlit
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