Power BI · DAX · Python · SQL
Behavioral Analytics & Customer Insights
A multidimensional analytics model spanning 15 customer KPIs, loyalty segmentation, churn risk, revenue health and pricing opportunities.
Data Science · Analytics · AI Evaluation
Turning complex data into clear decisions.
I’m John Kioko, a Nairobi-based data professional working across analytics, automation, machine learning and AI quality.
PROFILE / 2026
98%+Data accuracy maintained in regulated reporting environments
85%Reduction in reporting cycle time through automation
500+AI, code and multimodal outputs audited for quality
SELECTED WORK
Data products built for insight and action.
Power BI · Excel · Data Cleaning
UK Road Accident Analysis
An interactive dashboard translating casualty patterns by road type, weather and vehicle category into clear, decision-ready insights.
Python · Pandas · ETL · Excel
Environmental Master Data Redesign
A unified reporting system that consolidated fragmented operational data and reduced environmental reporting time by approximately 60%.
EXPERTISE
A multidisciplinary data toolkit.
01
Analytics & BI
Power BI, DAX, Advanced Excel, KPI design and stakeholder reporting.
02
Data Engineering
Python, Pandas, NumPy, SQL, ETL pipelines, validation and automation.
03
AI Quality
RLHF, prompt engineering, model evaluation, code validation and red-teaming.
04
Applied Statistics
Statistical analysis, chemometrics, data mining and machine learning.