Work History
Education
Skills
Timeline
Project Experience
Volunteer Work
Generic

Zhiyuan (David) Dai

Work History

Intern

Shanghai Pharmacy Jiading (Shanghai) Co., Ltd.
06.2025 - Current

Business Operations Intern Hybrid(On-site & Remote)

  • Reconciled weekly in-store and O2O sales, processing 20K+ transactions every week to ensure accurate records.
  • Audited monthly inventory, updated 2K+ SKUs in the system, and corrected ~140 discrepancies.
  • Tracked daily stockouts at 5 stores and arranged urgent replenishments, cutting stockout rate by ~20%.
  • Planned weekly restocking based on sales and turnover data, improving procurement efficiency.
  • Analyzed trade area sales to identify hot-selling products and support new product launches.

Intern

CITIC Securities, Shuangdan Branch
07.2025 - 08.2025

Market Development Intern

  • Assisted clients with account setup, margin financing, and derivatives trading, ensuring compliance and efficiency.
  • Maintained and expanded client relationships through regular communication and issue resolution.
  • Prepared and shared market updates and research reports to support client investment decisions.
  • Contributed to a ¥50M asset allocation project by conducting risk–return analysis and portfolio design, with simulated annual returns of 5.3%–6.8%.

Education

Bachelor of Science - Statistics

University of California, Davis
06-2027

Skills

  • Teamwork and collaboration
  • Quick learner
  • Problem-solving
  • Data processing skills (python, R, sqlite)

Timeline

Intern

CITIC Securities, Shuangdan Branch
07.2025 - 08.2025

Intern

Shanghai Pharmacy Jiading (Shanghai) Co., Ltd.
06.2025 - Current

Bachelor of Science - Statistics

University of California, Davis

Project Experience

Shanghai Pharmacy Jiading (Shanghai) Co., Ltd.- Shanghai 

  • Led an automation project to optimize store replenishment based on historical sales and order data.
  • Built a Python (Pandas, NumPy) model to predict replenishment needs using sales, inventory, and packaging data.
    Developed a Streamlit web app for CSV uploads and automated Excel reports,boosting efficiency by 70%+ and accuracy by 20%, supporting 20+ stores.

Volunteer Work

University of California, Davis, Department of Statistics

4/13/2025

  • Picnic Day Volunteering: Supported the Statistics Department booth during the event by welcoming guests and facilitating mini-games
Zhiyuan (David) Dai