Charles Walker II

Detroit,MI

Summary

Results-driven data analyst with expertise in Python, SQL, Power BI, and Excel. Skilled in leveraging data storytelling to inform strategic business decisions. Excels in creating impactful data visualizations, optimizing ETL processes, and conducting trend analysis to drive operational efficiency. Adept at translating complex data into actionable insights for improved business performance.

Overview

years of professional experience

Work History

Customer Insights Analyst

Delta Air Lines, Inc

11.2014 - Current

Collected and analyzed operational metrics to identify trends in baggage delays and flight departures
Developed weekly reports using Excel and Power BI to visualize performance metrics and recommend process improvements
Performed data validation and transformation to ensure accuracy in tracking passenger boarding efficiency
Collaborated with cross-functional teams to optimize workflows, leading to a 20% increase in operational efficiency

Medicare Beneficiary Analyst

Blue Care Network Of Michigan

10.2019 - 10.2021

Analyzed customer service metrics using SQL and Excel, identifying key trends in Medicare coverage inquiries
Created dashboards in Power BI to track issue resolution times, leading to a 10% improvement in response efficiency
Developed reports and data visualizations that streamlined internal workflows for tracking service issues

Education

Data Engineering Python Certificate - Data Engineering

Grand Circus

Detroit, MI

02-2025

B.B.A. - Finance

Eastern Michigan University

Ypsilanti, MI

06.2017

Skills

Python programming
Exploratory Data analysis (EDA)
Data visualization and presentations
SQL & NoSQL databases
Power BI tools

REST APIs
ETL processes
Predictive Analytics
Critical thinking
Collaboration & Reporting

Timeline