Keir Simmons
Staff Machine Learning Engineer at Meta
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolKeir Simmons is a Staff Machine Learning Engineer with nine years of experience building production-grade ML systems across Amazon and Meta, and a strong track record launching cross-border programs in Japan, the US, India and China. He specializes in scalable ML pipelines, causal inference, and contrastive learning—delivering multimillion-dollar uplifts such as a $21M+ improvement in address resolution and models that enabled an estimated $920M in potential revenue. Comfortable in research and production, he has led end-to-end initiatives, authored internal research, and deployed real-time, serverless workflows using Python, SQL, Scala, and AWS. His background blends deep RL and autonomous systems research with practical applied science, from training simulated agents and drones to commercializing ML at scale. Fluent in Japanese through a Daiwa Scholarship and experienced working in Japan, he uniquely bridges technical leadership with cross-cultural program delivery.
9 years of coding experience
9 years of employment as a software developer
High School A Levels, High School A Levels at The Hollyfield School & Sixth Form CentreMaster of Engineering (MEng) Aeronautical Engineering, Master of Engineering (MEng) Aeronautical Engineering at Imperial College LondonDaiwa Scholarship Japanese Language, Daiwa Scholarship Japanese Language at EJEF UKUniversity College LondonMaster of Engineering (MEng) Aeronautical Engineering, Master of Engineering (MEng) Aeronautical Engineering at National University of SingaporeDaiwa Scholarship Japanese Language, Daiwa Scholarship Japanese Language at The Naganuma School of Japanese Language
English, Japanese
Stackoverflow
1,634reputation
239kreached
11answers
84questions
Github Skills (56)
dbus9
driver9
gnu8
daemon8
formatter7
linux7
energy7
python7
deep-reinforcement-learning6
html6
syntax6
actor-critic6
favicon6
region6
css-selectors6
Programming languages (4)
Github contributions (5)
KeirSimmons/item-image-pricer
May 2017 - Jun 2019
Contributions:10 commits, 10 pushes, 1 branch in 2 years
KeirSimmons/ZetaBoards
Jun 2017 - Dec 2017
Contributions:28 commits, 25 pushes, 1 branch in 6 months
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