Mattan Griffel
Assistant Professor Of Professional Practice at Eugene M. Lang Entrepreneurship Center at Columbia Business School
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolMattan Griffel is an entrepreneur-turned-educator with 13 years of experience building startups, teaching MBA students, and scaling mission-driven products. He co-founded One Month (an accelerated online learning platform) and Ophelia (an evidence-based opioid treatment platform), and was twice backed by Y Combinator while earning Forbes 30 Under 30 recognition. Now an Assistant Professor at Columbia Business School, he teaches entrepreneurship, Python for MBAs, and databases—winning the Dean's Award for Teaching Excellence in 2019 and 2024. He combines practical operator chops (CEO/COO roles) with ecosystem roles as a Lang Center Innovation Fellow, board observer, and startup coach. Based in New York, he also translates technical concepts into practical curricula and products that help nontechnical leaders ship code-informed solutions. A detail that surprises many: he has balanced hands-on startup ops with sustained classroom excellence, earning top teaching awards while advising and scaling healthcare and education ventures.
13 years of coding experience
14 years of employment as a software developer
Summer 2013, Winter 2020, Summer 2013, Winter 2020 at Y CombinatorMaster of Business Administration (MBA), Master of Business Administration (MBA) at Columbia Business SchoolBachelor of Science (BS), Double Major: Finance & Philosophy, Bachelor of Science (BS), Double Major: Finance & Philosophy at NYU Stern School of Business
English, German
Stackoverflow
839reputation
70kreached
3answers
11questions
Github Skills (24)
rvm9
rails9
rubinius9
truffleruby9
mruby9
cs509
jruby8
ruby7
paperclip6
ruby-on-rails6
xcode6
parsing6
regex6
rubygems6
mixpanel3
Programming languages (5)
Github contributions (5)
onemonth/install_rails
Jul 2013 - Dec 2019
The easier way to install Rails on your computer
Contributions:44 commits, 7 PRs, 10 pushes in 6 years 6 months
rails
mattangriffel/python_for_mbas_class
Mar 2022 - Oct 2023
Contributions:14 pushes, 1 branch in 1 year 6 months
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