Aotian Yang
@aotianyang
Machine Learning Engineer specializing in scalable ML systems, ranking, and privacy.
United StatesWhat I'm looking for
I am a results-driven Machine Learning Engineer with over 6 years of experience building and optimizing large-scale ML systems, ranking pipelines, and data infrastructure. I specialize in feature engineering, model inference, privacy-preserving algorithms, A/B testing, and creating robust debugging tools that accelerate development cycles and improve model quality.
At companies like Pinterest, Snap, and Amazon I led deployment of high-performance serving platforms, hybrid recommendation and ranking algorithms, and real-time experimentation dashboards that improved engagement and reduced latency and costs. I mentor engineers, advocate for data governance and safety, and deliver practical ML solutions that balance performance, scalability, and user trust.
Experience
Work history, roles, and key accomplishments
PIDesigned and deployed a high-performance ML serving platform that reduced inference latency by 25% and improved request throughput by 40%; led hybrid ranking algorithm work that increased user engagement by 15% and cut A/B testing cycles by 35%.
SIDesigned Snapchat’s friending ranking service increasing user-to-user connections by 18%; built a ranking feature testing framework improving developer productivity by 30% and implemented differential privacy and bias mitigation in ranking pipelines.
AMLed development of Alexa’s book purchase feature, driving a 12% increase in Alexa-driven book sales; improved backend performance and reduced average latency by 30% while implementing metric monitoring for high availability.
Education
Degrees, certifications, and relevant coursework
NUNew York University
Master of Science, Computer Science
2016 - 2018
Completed a Master's degree in Computer Science focusing on advanced machine learning and systems from 2016 to 2018.
NUNew York University
Master of Arts, Psychology
2014 - 2016
Completed a Master's degree in Psychology from 2014 to 2016 with coursework relevant to cognitive neuroscience and human behavior.
EUEast China Normal University
Bachelor of Science, Physics
Earned a Bachelor of Science in Physics with foundational training in quantitative analysis and scientific methods.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Job categories
Skills
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