Hi, I’m Jeff!
$2000 in the pot. I’m all in. I’m going to win.
I had pocket AA, the best possible hand you could have at a poker table. 4 people pushing all in. Suckers. They flip their cards, four cards get put on the board. Mathematically, I had a 95% probability of winning. Next card flips, 10. I lose.
I loved the math. Didn’t like losing money. I loved the statistics. The next logical step? Data science.
Fast forward 3 years and I’m a Data Scientist at DoorDash.
Who is Jeff Li?
I’m a Data Scientist on the Machine Learning Team at DoorDash. My work includes improvements on our recommendations algorithm. How do we show you restaurants you’ll actually like?
Additional work includes building custom recommendations, attribution modeling & retention modeling. Previously wrote R & Python courses for thousands of students @ dataquest.io:
I also became conversational in Spanish in one month (although I haven’t been practicing):
In my free time, you can find me freestyle rapping about a random topic, going on 50 mile bike rides or ballin’ up on the basketball courts. I’m fortunate to live a life that affords me to travel, having visited over 25+ countries, my favorite being Colombia.
To help you find something that interests you, I’ve curated my best content:
This is the 1% of content that have made 90% of the impact on my life:
6 Harsh Truths That Will Make You A Better Person: I read this when I was 21, stressed that I couldn’t find a job. This article forced me to swallow a harsh pill of life: The world doesn’t actually care about me. They care about what I can do for them. Don’t get a job. Become the man companies want to hire. Don’t get a girlfriend. Become the man girls want to date. The only path is self-improvement.
Randy Pausch’s Last Lecture: Randy Pausch was a computer science professor at Carnegie Mellon. He was diagnosed with terminal cancer. But before he passed, he gave a “last lecture” on achieving your childhood dreams. When death is so visceral, this forces you to make every minute of your life count:
Can’t Hurt Me by David Goggins - David Goggins completed three Navy Seal hell weeks, ran 100 miles in 24 hours, broke the world record for pull-ups (4000+ in 24 hours). Reading his story made me realize that we’re all severely underestimating our potential. That we’re capable of so much more.
Elon Musk: : Tesla, SpaceX, and the Quest for a Fantastic Future - This book helped me realize that I shouldn’t focus on just making money, working a job. To decide on the direction of my career, I should start by thinking about the most important problems in the world today. And then find careers that help solve these problems.