About

I'm a software engineer at Netflix, where I work on the Experimentation Platform — the system that powers A/B tests across the product. Most of my day involves React, TypeScript, and Python. Right now I'm leading a cross-functional initiative called Global Real-time Guardrails, which adds real-time safety checks to experiments, with a focus on Live and Ads. I also co-chair the Netflix PE UI Roundtable, which sets direction for paved-road JavaScript technologies at the company.

Before Netflix, I spent seven years in finance building electronic trading systems. I worked at both Citadel (the hedge fund) and Citadel Securities (the market maker) — two separate companies. At Citadel I built software for the Global Commodities and Global Equities desks — charting libraries, real-time dashboards, data visualization tools, and a Python library that let traders create interactive charts in three lines of code. I also developed the order entry application the entire firm uses for executing live market orders. Across both firms I worked extensively with KDB+ and q in production, integrating real-time and historical time-series data from KDB into trading applications and building Python libraries for quant researchers to query KDB directly from Jupyter notebooks.

At Citadel Securities I designed the desktop trading applications for the ETF Market Making desk — 100% of the firm's manual equity and commodities trades were made using software I wrote. I also built the RFQ system used by the Options, OTC, and ETF desks — the only system that didn't fail during the COVID crash of 2020. I created a market anomaly detection system that has contributed several million dollars in additional PnL since launch. Before Citadel I worked at Goldman Sachs, Morgan Stanley, BlackRock, J.P. Morgan, and S&P Capital IQ, mostly building tools for traders and quantitative analysts. Earlier in my career I was a quantitative analyst working on structured finance and exotic fixed-income derivatives — swaps, swaptions, synthetic CDOs.

I've been speaking at conferences since 2013. Node Congress, JSNation US, JSConf India (got to visit Bangalore for the first time), DevOps.js, and a bunch of others. I've also given talks at the White House, the United Nations, Harvard Business School, Columbia University, NYU, and the Japan Information Technology Services Industry Association. Speaking at the White House was surreal — still is.

I wrote a book called Learn Algorithmic Trading with Python (Apress/Springer) and open-sourced a TensorFlow.js quickstart guide.

My wife Felicia and I co-founded Code Crew in 2013. It started as a weekly study group meeting in coffee shops, and somehow grew into one of NYC's largest tech communities (~14,000 members across two meetup groups). We've taught thousands of people to code. I also taught at Columbia University, where I received the highest instructor ratings ever recorded for the web development course, New Jersey Institute of Technology (where I worked with the mayor's office, governor's office, and Code for America to develop and open-source the curriculum), General Assembly, and Startup Institute.

I went to Penn State's Schreyer Honors College (BS Economics with a minor in Business, Lion's Shrine Award for highest GPA in the college) and later earned a Graduate Certification in Business Analytics from the Harvard Business Analytics Program at Harvard Business School, where I graduated with Distinction and had the opportunity to give the commencement speech.

My work has been covered in TechCrunch, Fortune, Forbes, CNN/Money, Black Enterprise, and others.

Outside of work

Algorithmic trading strategy development is my main hobby — I build systems in Python and Rust. I also enjoy writing research papers on AI applications in finance — portfolio optimization, reinforcement learning for trading, and evaluating LLMs on programming tasks. I try to write at least one a year. Photography is another hobby (FujiFilm, though I used to shoot Canon).

I'm a die-hard New York sports fan: Yankees, Giants, Knicks, Rangers. I also quietly support the Mets and the Jets. A regular at the US Open — I was in the building when Coco Gauff won her first Grand Slam. I also follow Real Madrid (Hala Madrid) and got to see LeBron break Kareem's all-time scoring record in person when I was in LA.

I'm a movie nerd who frequents the Tribeca Film Festival and TIFF. Fun fact: I once pitched a TV series that was being co-produced by Michael K. Williams, had a stint working on independent films with Issa Rae when she first moved to New York, and toured with a Grammy-nominated Universal Music Group recording artist for a year. The entertainment industry isn't entirely foreign territory.

I live in Westchester County with my family. Born and raised in New York City.

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