* 1/2020-present: Tech Lead Director, Meta Ads and Business Platform. Developing ads auction algorithms for privacy-enhanced ads products.* 7/2015-12/2019: Engineering Director, Instagram Ads. Built the Delivery/ML team (matching users to relevant ads) from scratch, and later supported the front-end/full-stack teams as well, to support all of Instagram Ads. The team was responsible for driving Instagram Ads revenue, which grew over 100x during this time, to over 15B USD per year. Built a diverse and experienced team of 100+ engineers.* 2/2013-6/2015: Research Scientist, Facebook Ads Delivery. Auction-expert engineer, working on Ads Delivery, the machine-learning-driven system that matches users to ads. Pioneered some of the key concepts in the newsfeed auction algorithm to balance advertiser value and user sentiment, and also developed multiple advertiser-facing delivery products such as ad frequency control and cost-capped conversion optimization.

Researcher affiliated to EconCS group and Center for Research on Computation and Society. My core area of expertise is algorithms. My research involves mathematical modeling and stochastic optimization for various economic applications. In particular, I have worked on auction design, networked bargaining, online pricing strategies and financial trading strategies.

Designing pricing schemes for online display ad bundles, using game-theoretic analysis and stochastic optimization.

Designed selective call out strategies for real time bids in an Ad Exchange. Patent developed.