Atulukwu Sunday | BI & Data Analytics Portfolio

80+

Professionals Trained

35%

Faster ETL

10k+

Records Managed

Executive Summary

Bridging raw data complexity and executive decision-making.

I am a results-oriented Business Intelligence Analyst with a proven track record of architecting scalable data solutions. My expertise lies in the Microsoft Stack (Excel, Power BI, SQL) and Python, which I use to automate high-stakes reporting and optimize organizational workflows. Beyond technical implementation, I am a dedicated data educator, having mentored over 80+ individuals in data democratization and literacy.

Technical Arsenal

Python

SQL

Power BI

Excel VBA

Enterprise Data Architecture

Scalable ETL Pipelines

Architecting automated data flows using Python and SQL Server, focusing on data consistency and integrity during complex migrations.

Performance Tuning

Specialized in VertiPaq engine optimization and DAX query tuning to reduce dashboard load times significantly.

Strategic Data Governance

Single Source of Truth (SSOT)

Developing centralized data models that eliminate reporting silos and ensure departmental alignment.

Insight Democratization

Building self-service BI environments that empower non-technical stakeholders to perform deep-dive analysis.

Professional Workflow

ETL & Cleaning

Extracting and cleaning raw data to ensure absolute accuracy for a "Single Source of Truth."

Data Modeling

Architecting Star Schemas and optimized DAX measures for high-performance reporting.

Visual Synthesis

Converting complex technical metrics into high-impact, actionable executive dashboards.

Featured Projects

Scikit-Learn & Python

Customer Attrition Risk

Developed predictive models to identify high-risk churn segments and risk factors.

SQL & Power BI

Telecom Churn

Unified 7k+ records via SQL; enabled 90% accurate target marketing.

BI Strategy

National Rail

Architected DAX models to monitor revenue leakage and audit labor.

Python

PharmaPX System

Automated daily reconciliations, cutting processing time from 3hrs to 5mins.

Validation

"Sunday’s dashboards are game-changers for strategic decision-making."

"His ability to structure complex data into insights is unmatched."

Proof of Impact

Hands-on Training

Mentoring the next generation of Data Analysts.

Global Webinars

Discussing BI strategy with international audiences.

Workshops

Applied data theory sessions.

Data Labs

SQL & Power BI live troubleshooting.

Let's build something insightful

Available for BI architecture, training engagements, and data strategy consulting.

Get In Touch