Ryan Sun
Technical Lead at TikTok
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolRyan Sun is a Technical Lead based in San Francisco with 10 years of experience building large-scale data platforms and analytics solutions across e-commerce and media. He architects and operates massive distributed storage and compute systems (hundreds of EB scale) and is fluent across the Hadoop ecosystem, ClickHouse, Kafka, Spark/Flink, and cloud-native microservices. Ryan combines deep analytics expertise—advanced SQL, Tableau, Python/R, statistical modeling, and ML—with hands-on systems engineering in languages from Python to C++ and Go. He has a track record of turning slow ETL and ML workflows into high-performance, self-service tools that cut runtimes from hours to minutes and democratize insights for non-technical stakeholders. A pragmatic leader, he grows teams, manages stakeholders, and makes strategic tradeoffs while elevating engineering practices and onboarding. Outside core responsibilities he consistently takes initiative—creating CI pipelines, documentation, and internal training that scale organizational capability.
10 years of coding experience
5 years of employment as a software developer
The University of Hong Kong (HKU)Exchange Student Accounting, Exchange Student Accounting at City University of Hong KongBachelor's Degree Actuarial Science, Bachelor's Degree Actuarial Science at East China Normal UniversityVisiting Student, Visiting Student at National University of SingaporeMaster of Science - MS Business Analytics, Master of Science - MS Business Analytics at Washington University in St. Louis
English, Chinese, Chinese
Stackoverflow
1,130reputation
290kreached
3answers
18questions
Github Skills (100)
python10
mqtt9
home-automation9
automation9
home-assistant9
asyncio9
privacy9
raspberry-pi9
tailwindcss9
iot9
markdown8
ray8
optimization8
accelerometer8
turborepo8
Programming languages (6)
Github contributions (5)
ryansun96/RedditGCTopics
Apr 2019 - Aug 2019
Contributions:12 commits, 11 pushes, 2 branches in 3 months
ryansun96/SEProbModels
Apr 2019 - Apr 2019
Contributions:1 release, 17 commits, 14 pushes in 7 days
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