Noah Guerrero

I’m a Data Analyst with 3+ years of experience in operations, and I love diving into data to compile, query, and analyze large datasets. At Marsh USA, I focused on insurance renewal and operational performance data—identifying bottlenecks, answering ad-hoc questions, and presenting key findings to leadership and external stakeholders. I’m detail-minded in SQL, Excel, and Tableau, using exploratory, trend, and cohort-style thinking to spot patterns, data quality issues, and the “why” behind business outcomes.

I’ve built practical tools that reduce manual work and improve decision-making. I reduced the total monthly manual reporting completion time by 75% by building an automated Excel reporting tool, and I identified process bottlenecks over 10,000 working hours annually through targeted analysis and impact calculations. My project work—like analyzing 5.5M+ bicycle rides and integrating 500K+ COVID-19 and vaccination records—combines SQL data cleaning and querying with Tableau dashboards (including geospatial mapping) to deliver actionable recommendations to sales, marketing, and management stakeholders.