Sonia Jideofor
@soniajideofor
Data analyst driving insights with SQL, Excel, Power BI, and DBT.
United KingdomWhat I'm looking for
I am a highly motivated data analyst with deep expertise in statistical analysis, data visualization, ETL and data transformation tools. I have designed dashboards and ETL solutions that reduced cancellation rates from 45% to 10%, improved forecasting accuracy by 15%, and increased on-time payments/revenue by 25% across healthcare and energy engagements.
I combine advanced Excel (Power Query, Power Pivot, VBA), SQL (MariaDB/Redshift/SQL Server), Databricks, DBT and visualization tools (Power BI, Tableau) to transform complex datasets into actionable insights. I work collaboratively across stakeholders to automate reporting, improve data quality, and drive operational efficiencies in aviation, energy, IT and healthcare sectors.
Experience
Work history, roles, and key accomplishments
Sr. Data Analyst / Lead Developer
Maximus UK
Aug 2024 - Oct 2025 (1 year 2 months)
Designed Excel root-cause analysis and dynamic KPI dashboards that reduced service delivery cancellations from 45% to 10% and improved team efficiency by 15% through performance insights and automation.
Sr. Data Analyst
Rebel Energy UK
Mar 2023 - Jun 2024 (1 year 3 months)
Built Power BI dashboards and Databricks/DBT ETL pipelines that reduced operational costs by 12%, improved demand forecasting accuracy by 15%, and increased revenue via dunning-stage interventions by 25%.
Data Analyst
Shell Energy Retail Limited
Sep 2018 - Mar 2023 (4 years 6 months)
Developed Excel-driven ETL workflows and dashboards to monitor energy demand and billing, improving forecasting by 15% and increasing on-time payments by 25% through delinquency analysis and incentive design.
Education
Degrees, certifications, and relevant coursework
USUniversity of Sunderland
Master of Science, Computer Science and Cyber Security
Master of Science in Computer Science and Cyber Security, graduated June 2025.
UWUniversity of Wolverhampton
Bachelor of Engineering (Honors), Aerospace Engineering
Bachelor of Engineering (Honors) in Aerospace Engineering, graduated June 2018.
Tech stack
Software and tools used professionally
Availability
Location
United KingdomAuthorized to work in
Job categories
Skills
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