Yiyuan Li

MPSDS @ University of Michigan 27’ | Data Analyst | Business Analyst

Ann Arbor, Michigan, United States

About

Currently pursuing a Master of Science in Survey and Data Science at the University of Michigan, with a background in Human Resources Management from Nanjing Normal University.

Experience

  • Research Assistant Part-time at University of Michigan Institute for Social Research
    Oct 2025 - Present · 9 mos

    Designed reproducible data pipelines in R to ingest, clean, and integrate 3 million records from large-scale national health survey datasets (HRS, NHANES, NHIS) with administration records (NDI), decreased error rates by 1.6% and created 10+ data visualizations to examine mortality patterns across cohorts. Applied post-stratification frameworks to produce population-level mortality estimates, incorporating sampling weights, missing data, and supporting evidence-based decision-making in health and aging research.

  • Research Assistant at Nanjing Normal University
    Apr 2024 - Apr 2025 · 1 yr 1 mo

    Tracked the evolution of Guojiao 1573’s market positioning across four strategic phases, applying STP and 3C models to explain shifts from public-sector procurement to premium personal consumption. Derived customer insights by segmenting behavior through Consumer Behavior Theory, identifying post-COVID shifts in value perception, brand loyalty, and usage scenarios among consumer groups. Evaluated brand repositioning strategies using AARRR funnel models to map customer journey; applied RFM segmentation to support personalized targeting across price tiers. Published in the China Management Case-sharing Center, used in MBA/EMBA courses.

  • Organizational Development Intern at Kidswant
    May 2024 - Aug 2024 · 4 mos

    Contributed to a mid-year cross-region analytics initiative across 7 markets of 2,000+ employees, unifying talent performance and store-operation data with Excel; improved data accuracy to 100% while enabling diagnosis of scale-driven or efficiency-driven problems. Quantified the ROI of talent quality by showing the gap of online output between star employees and general employees that directly influence hiring, capability development, and retention strategy. Integrated qualitative insights from 360° interviews with quantitative indicators of 8 newly appointed managers, and structured L4-L5 employee competences using iTalen to enhance the robustness of succession planning.

  • Human Resources Intern at SGS
    Oct 2023 - Dec 2023 · 3 mos

    Managed the onboarding procedures for employees and interns, including collecting necessary documents, signing agreements, and conducting orientations. Assisted in regular human resources management, primarily by updating employees’ personnel files and calculating monthly salaries based on attendance records and allowances. Involved in departmental training, such as customer service skills, technical software training, safety and compliance training.

  • Executive Search Consultant at Career International 科锐国际
    Jul 2023 - Sep 2023 · 3 mos

    Collaborated with leaders and HR representatives of client companies, including Inceptio Technology, Butler China, and CRRC Zhuzhou, to analyze job descriptions, understand the client’s industry and needs, and determine candidate profiles. Utilized multiple recruitment channels, including Liepin, BOSS, and Zhaopin, to reach out to potential candidates and completed 10+ cold calls per day, and leveraged the Moka system for recruitment processes. Conducted 14 initial interviews and produced 8+ recommendation reports per week to progress the selection process of suitable candidates, successfully generating 5 for follow-up interviews, and 1 for a job offer.