Corey Sroka

Data Analyst with hands-on experience using SQL (BigQuery), Excel, R, Power BI, and Tableau to clean, validate, analyze, and visualize data. Built analytical projects involving data quality assessment, exploratory analysis, reporting, data modeling, and dashboard development. Brings nearly a decade of high-volume retail operations experience with a strong record of accuracy, problem-solving, and working effectively in fast-paced environments.

Front End Associate at Costco Wholesale (2018 – 2024)

• Supported high-volume customer operations; maintained accuracy and professionalism during peak traffic.
• Assisted with inventory tracking and reconciliation in internal systems; verified counts and escalated discrepancies.
• Cross-trained across departments and helped onboard new team members.

Produce Associate at Jewel-Osco (2015 – 2018)

• Handled fast-paced workflows and customer issues while maintaining service quality and composure.
• Supported daily operations with leadership tasks, including shift support and training assistance.

No Degree – College (2013 – 2013)

Diploma – High School (2010 – 2010)