微信支付-数据与算法工程师
Core
Building data pipelines, feature systems, and online learning infrastructure to upgrade WeChat Pay's core payment/withdrawal/settlement business from fixed rules to adaptive strategies.
Role type
Senior IC machine-learning engineer (online learning & strategy)
Builds
Adaptive decision systems for high-value, high-constraint payment scenarios
Domain
Fintech / Payments / Risk Control
Deliverable
production ML models
Required skills
Python, Go, C++, machine learning frameworks, online learning infrastructure, feature engineering, sample construction, model evaluation, causal inference, counterfactual evaluation, exploration-exploitation tradeoffs
Preferred skills
payment/清算/risk control/credit/e-commerce recommendation/ad bidding/dynamic pricing, compliance & security, team building, distributed systems, business architecture
Responsibilities
Design and build data linkages and feature systems for adaptive strategy; define objective functions and constraints for key business decisions; lead end-to-end strategy deployment from modeling to attribution; mentor team members and establish team-level capabilities
