JL

Junjun L.

Principal Tech Lead Manager

Junjun L. is an accomplished technical leader with extensive experience in engineering and management across prominent technology companies. Currently serving as a Principal Tech Lead Manager at Lyft since 2020, Junjun focuses on growth platforms and marketplace pricing and forecasting. Prior experience includes roles as a Senior Staff Engineer and Tech Lead Manager at Uber, leading user targeting and segmentation projects, and as a Staff Engineer at Twitter, directing the Ads Targeting team and overseeing user modeling and targeting infrastructure. Earlier positions include Principal Software Engineer at @WalmartLabs, where Junjun architected a product recommendation system impacting millions of customers, and software development roles at Amazon, Microsoft, and Bell Labs, focusing on various aspects of software design and implementation. Educational qualifications include a PhD candidacy in Electrical Engineering from The Graduate Center, City University of New York, along with a Master's degree from Tsinghua University and a Bachelor's from Beijing University of Posts and Telecommunications.

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