Data Analyst & AI Systems Builder
I turn messy, real-world data into decisions people can act on.
I'm Neyda Larson. I build validated dashboards and data models from raw, real-world data, plus the Claude agents and automations that speed the work up. Below are real builds that fix real problems. Open to remote data and AI roles, and to freelance projects: see my freelance data analyst services.
SELECTED BUILDS
A/B Testing
Jackknife SEs and Holm-corrected multiplicity testing
Python (pandas, numpy), R (survey package) for an independent cross-check, Power BI for the scorecard.
Real data
Star schema plus DAX filter-context debugging
DuckDB · SQL · Power BI · DAX · Python for independent validation.
Tested
Pre-registered benchmark tests a hard scope fence
Claude · prompt and system design · eval harness
Synthetic data
Cohort splits and z-tests isolate the real cause
Python, pandas, NumPy, Jupyter.
Tested
Six-stage architecture, red-teamed against real cases
Claude · prompt and conversation design
Shipped
No-code waterfall logic built from boolean signals