Open to opportunities

Kayode Williams

@kayodewilliams1

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Commercial Analyst specializing in SQL, Python, and Power BI to deliver actionable financial insights.

Ireland

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What I'm looking for

I’m looking to build and scale commercial analytics—using SQL, Python, and Power BI to define KPIs, automate reporting workflows, and present data-backed recommendations to finance and business leaders.

I’m a Commercial Analyst with over 5 years of experience using SQL, Python, Excel, and Power BI to analyze financial, product, and customer data across fast-growing technology businesses. I focus on collections and receivables analysis, invoicing and billing performance, customer spend segmentation, and revenue reporting—turning commercial questions into clear, data-backed recommendations for finance and business leaders.

I’ve driven measurable improvements, including a 42% improvement in collections by producing ageing receivables and collections reports and connecting payment patterns to operational follow-up actions. I also designed and deployed an SQL and Power BI invoicing dashboard that increased invoicing efficiency by 63%, and I’ve supported growth through spend segmentation that contributed to a 22% increase in data revenue.

In my current role, I translate business requirements into reporting logic and KPI definitions, and I build recurring reporting workflows that improve payment visibility and reduce manual effort. I’m also completing an MSc in Business Analytics, with hands-on project experience in financial data pipelines and risk analysis to strengthen how I deliver trustworthy insights.

Experience

Work history, roles, and key accomplishments

Business Intelligence Analyst

Wowzi Technologies

Aug 2023 - Sep 2025 (2 years 1 month)

Translated business requirements into reporting logic, KPI definitions, and stakeholder-ready analytical outputs across finance, operations, and commercial teams. Built SQL and BigQuery finance payment reporting workflows and recurring operational reporting, improving payment visibility and reducing manual data preparation by 28%.

SQL BigQuery Power BI DBT Airbyte AWS Lambda CodeCommit GitHub Actions Python Requirements Definition KPI Reporting Data Integration Excel Requirements Gathering

Senior Business Intelligence Analyst

Kobo360

Mar 2021 - Aug 2023 (2 years 5 months)

Produced ageing receivables and collections reporting that improved collections by 42% over a quarter. Designed an SQL and Power BI invoicing dashboard to increase invoicing efficiency by 63%, and supported cost and revenue decisions using multi-source analytics.

SQL PostgreSQL Python Pandas Power BI AWS RedShift Excel DBeaver MongoDB Customer Analytics Data Modeling Trend Analysis Revenue Reporting Invoicing Data Cleaning Data Validation

Data Analyst

MTN Nigeria

Apr 2018 - Feb 2021 (2 years 10 months)

Performed spend band and customer segmentation using SQL and Tableau to identify high-value opportunities and support revenue growth. Built benchmarking dashboards with Tableau and Power BI and used SQL to analyze customer behaviour patterns across large datasets.

SQL Tableau Power BI Excel Data Cleaning Data Validation Customer Segmentation KPI Reporting Dashboarding

Data Analyst, Key Accounts Management

MTN Nigeria

Apr 2018 - Feb 2021 (2 years 10 months)

Performed spend band and customer segmentation analysis using SQL and Tableau to identify high-value growth opportunities. Built benchmarking dashboards to track divisional metrics and support efforts that increased the Platinum customer base and reduced churn.

SQL Tableau Customer Segmentation Dashboarding Benchmarking Trend Analysis KPI Reporting Data Visualization

Education

Degrees, certifications, and relevant coursework

Dublin Business School

Master of Science in Business Analytics, Business Analytics

2025 -

Pursuing an MSc in Business Analytics with coursework covering data governance, business intelligence systems, statistical analysis, data engineering, and decision analytics.