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Mingyang Wang Toronto, ON | [email protected] | (+1) 365-883-6277 Education Master of Engineering, McMaster University Canada Systems and Technology (AI & Machine Learning Focus) Jan 2024 – May 2025 Bachelor of Engineering, Kunming University China Software Engineering Sep 2016 – Jun 2020 Professional Experience AI Data Trainer – Investment Analysis Toronto, Canada Cohere Dec 2025 – Present • Evaluated large-scale LLM outputs for finance-related workflows by performing ranking, error analysis, and quality auditingusingstructuredevaluationframeworks,improvingdatasetreliabilityfordownstreamtrainingandvalidation. • Identifiedmodeledgecasesandambiguitypatternsthroughsystematicannotationandfailurecategorization,enabling refinement of evaluation pipelines and improving consistency across multiple AI evaluation benchmarks. • Collaborated with cross-functional teams by documenting model behavior insights and translating technical findings into actionable recommendations, enhancing model interpretability and deployment readiness. Software Engineer (AI/ML Systems) China ICBC Jul 2020 – Dec 2023 • BuiltscalablebackendservicesusingJavaandSpringCloudforafinancialplatformservingmillionsofusers,improving system reliability and reducing downtime by 30% through optimized service architecture and monitoring. • Developed a Python-based credit risk modeling system processing 100,000+ applications monthly using SVM, KNN, and Random Forest, increasing high-risk detection accuracy by 20% an