
Thomas Byrne
About Me
Data Analyst with 5 years turning retail and supply chain data into decisions. Builds SQL pipelines, Power BI dashboards and Python analyses for teams up to the executive board. Found USD 780,000 in savings and automated reporting that saves 120 hours a month.
Work Experience
- Built 45 Power BI dashboards used by 300 managers.
- Found USD 780,000 in savings through supplier pricing analysis.
- Automated weekly sales and stock reports, saving 120 hours a month.
- Improved demand forecast accuracy from 71% to 89%.
- Wrote SQL models for delivery performance across 12 depots.
- Introduced data quality checks that cut reporting errors by 70%.
Education and Training
- BSc Economics and Statistics, University College Dublin, Dublin, Ireland, 2020
Skills
- Analysis: SQL, Python (pandas), statistics, forecasting, A/B testing
- Visualisation: Power BI, Tableau, dashboard design, storytelling
- Data engineering: ETL with dbt, data modelling, data quality checks
- Business: KPI design, stakeholder workshops, executive presentations
Language Skills
English: Native | Irish: Conversational
Digital Skills
- Tools: SQL Server, BigQuery, dbt, Python, Power BI, Tableau
Certifications
- Microsoft Certified: Power BI Data Analyst Associate, Microsoft, 2022
- Google Data Analytics Certificate, Google, 2020
Additional Information
Nationality: Irish | Driving licence: Valid, Ireland | Availability: One month's notice