William Essilfie
Lead Product Manager at Black Product Managers Network
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolWilliam Essilfie is a product leader with 11 years of experience building discovery, personalization, and ML-driven marketplace experiences, currently leading Core Marketplace and SEO at Teachers Pay Teachers after its acquisition by IXL Learning. He has a track record of shipping 0-to-1 products and scaling search, recommendations, and monetization at both startups and large tech firms, including Meta and RangeMe. Will blends hands-on data science and experimentation with cross-functional leadership to improve search relevance, conversion, and marketplace liquidity for millions of educators. Now pursuing an Executive MBA focused on AI at Columbia Business School, he is especially interested in how AI can transform marketplaces and learning. Outside product work he writes about personal finance and has a history of building early AI assistants and student-facing platforms, reflecting a mix of technical curiosity and user-centered design.
11 years of coding experience
7 years of employment as a software developer
Master of Business Administration - MBA, Master of Business Administration - MBA at Columbia Business SchoolBachelor’s Degree Computer Science, Bachelor’s Degree Computer Science at Columbia College, Columbia University
English, Spanish
Github Skills (33)
flask8
jekyll8
phones7
facebook-messenger-bot7
react6
facebook-chatbot6
tailwindcss6
meteor-up6
discord-bot6
discord-js6
mup5
nextjs5
wordpress5
discord5
edtech4
Programming languages (6)
Github contributions (5)
woke/woke.github.io
Jun 2018 - Jul 2020
So You Want To Be Woke's website.
Contributions:47 commits, 3 PRs, 46 pushes in 2 years 1 month
reacttailwindcssdiversitywokeflask
thecolumbialion/coffeecu
Jun 2017 - Feb 2018
A way for Columbia students to meet new people.
Contributions:37 commits, 8 PRs, 15 pushes in 8 months
meetedtech
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