Yifan Lei
Growth Hacker at K2 LAB
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolYifan Lei is a growth-focused operator and builder with 10 years of experience scaling products and go-to-market motion across AI, e-commerce, and community platforms from New York. Currently leading growth for a multimodal AI Shopify product, he blends hands-on engineering instincts—evidenced by backend contributions to Apache Flink’s state management and RocksDB integrations—with GTM leadership that drove $1M ARR, $2M seed raise, and enterprise deals with ByteDance and Alibaba. He has repeatedly built 0-to-1 pipelines: launching MVPs in weeks, running dozens of user interviews to tighten product-market fit, and designing onboarding flows that cut decision cycles by 30%. Earlier roles span marketplace operations, large-scale campus campaigns at Alibaba, and corporate strategy that supported a $20M funding round and M&A execution. Comfortable at the intersection of technical implementation and commercial strategy, he brings a rare combination of open-source systems experience and high-velocity revenue growth.
9 years of coding experience
2 years of employment as a software developer
Master of Science - MS Learning Analytics, Master of Science - MS Learning Analytics at Columbia UniversityBachelor's degree Public Administration, Bachelor's degree Public Administration at Harbin Normal University
Github Skills (7)
rocksdb10
state-management10
apache-flink10
java9
javas9
big-data9
scala8
Programming languages (6)
Github contributions (5)
apache/flink
Mar 2022 - Nov 2022
Apache Flink
Role in this project:
Back-end Developer
Back-end DeveloperContributions:588 reviews, 22 commits, 164 PRs in 8 months
Contributions summary:Yifan's commits primarily focused on enhancing the state management within the Apache Flink project. They made configurable changes to the threshold for overlap fractions during incremental restoring and implemented a benchmark for rescaling. The contributions involve modifications to state backend code, including RocksDB, indicating expertise in optimizing state handling. The user's work also included the integration of file-merging features for snapshots.
pythonflinkconnectorsqlapache
fredia/flink
Jun 2021 - Apr 2025
Apache Flink
Contributions:681 pushes, 249 branches in 3 years 10 months
flinkapachebig-datadatastreamapache-flink
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