Oladeji Suleman
Senior Data Analyst
Frisco,TX
Summary
Strategic and results-driven Senior Data Analyst with 10+ years of experience transforming complex data into actionable insights that drive business decisions. Expert in Excel (Power Query, Pivot Tables, Power Pivot, XLOOKUP, advanced formulas, dashboarding), Power BI, Tableau, SQL, and Python (pandas, seaborn, matplotlib) to clean, analyze, and visualize data efficiently. Proven ability to automate reporting processes and collaborate with stakeholders to align analytics with key business KPIs. Experienced with cloud platforms including Azure, AWS, Snowflake, and Microsoft Fabric.
Overview
18
18
years of professional experience
5
5
Certifications
Work History
Senior Data Analyst
Wipro Limited
Dallas, Texas
01.2024 - Current
- Developed Excel-based automated reporting solutions using Power Query, Pivot Tables, Power Pivot, and complex formulas to streamline operational data reviews.
- Designed and deployed interactive Power BI and Tableau dashboards, improving visibility into operational metrics.
- Collaborated with stakeholders to define KPIs and reporting logic, ensuring analytics met business needs.
- Optimized SQL queries to reduce report load times by 35%, improving user experience.
- Reduced manual data entry errors by designing and deploying automated ETL processes to transform raw data into usable formats.
- Used Python (pandas) to clean and transform datasets from SQL Server and Snowflake, enhancing reporting accuracy.
BI Analyst
Midas Edge LLC
Dallas, Texas
01.2022 - 12.2023
- Automated monthly reporting workflows using Excel Power Query and advanced Pivot Tables, reducing manual tasks by 40%.
- Created dynamic Excel dashboards integrating XLOOKUP, Power Pivot, and formula-driven visual elements for business performance tracking.
- Performed data wrangling with Python (pandas, matplotlib) to support cost and utilization trend analysis.
- Consolidated data from multiple sources using SQL to provide unified, accurate reports.
- Managed complex BI projects from inception to completion, consistently delivering high-quality results within budgetary constraints and strict timelines.
Data & BI Specialist
Arik Air Limited
Lagos, Nigeria
12.2018 - 12.2021
- Migrated legacy Excel reports to Power BI and SQL Server, decreasing delivery time by 30%.
- Developed complex Excel models leveraging Power Query, Power Pivot, and advanced formulas to support operational decision-making.
- Designed PostgreSQL dashboards to track aircraft KPIs (fuel burn, payload optimization) and delivered actionable insights.
- Partnered with operations teams to analyze performance data and recommend improvements.
- Delivered comprehensive training sessions on BI tools usage, empowering end-users to effectively analyze data independently.
Lead Analyst – Data Systems & Analytics
Arik Air Limited
Lagos, Nigeria
01.2018 - 12.2018
- Led development of reporting systems combining Excel dashboards, Tableau, and SSRS, monitoring KPIs across departments.
- Gathered and translated stakeholder requirements into scalable analytics solutions supporting executive decisions.
- Streamlined reporting processes to save time and improve accessibility of critical information for decision makers.
Data Analyst
Arik Air Limited
Lagos, Nigeria
02.2014 - 12.2017
- Created and maintained Excel-based reports and dashboards using Power Query, Pivot Tables, Power Pivot, and formula automation to enhance reporting speed and accuracy.
- Built cross-functional insights used by finance, HR, and engineering for planning and evaluation.
- Produced monthly reports using advanced Excel spreadsheet functions.
Field Service Analyst
Demdeo Interbiz
Lagos, Nigeria
01.2011 - 01.2014
- Developed Excel and SQL dashboards to monitor field operations and improve service delivery accuracy.
- Automated Excel reporting processes, reducing manual work and improving data visibility.
System Analyst
Adamawa State Polytechnic
Adamawa, Vermont
01.2010 - 01.2011
- Managed and optimized student information databases with SQL and Excel tools for reporting and data accuracy.
- Conducted comprehensive system analyses to identify areas for improvement and optimization.
Data & Fraud Analytics Intern
Guarantee Trust Bank PLC
Lagos, Lagos, Nigeria
01.2008 - 01.2009
- Built Excel models using advanced formulas and pivot tables to identify fraudulent transactions.
- Improved data accuracy by conducting thorough data analysis and identifying errors in the dataset.
Education
Bachelor of Science - Electronics & Electrical Engineering
Ladoke Akintola University of Technology
Nigeria09.2009
Skills
Advanced Excel (Power Query, Pivot Tables, Power Pivot, XLOOKUP, formulas, dashboards)
Certification
Microsoft Fabric Analytics Engineer, 2025
Timeline
Senior Data Analyst
Wipro Limited
01.2024 - Current
BI Analyst
Midas Edge LLC
01.2022 - 12.2023
Data & BI Specialist
Arik Air Limited
12.2018 - 12.2021
Lead Analyst – Data Systems & Analytics
Arik Air Limited
01.2018 - 12.2018
Data Analyst
Arik Air Limited
02.2014 - 12.2017
Field Service Analyst
Demdeo Interbiz
01.2011 - 01.2014
System Analyst
Adamawa State Polytechnic
01.2010 - 01.2011
Data & Fraud Analytics Intern
Guarantee Trust Bank PLC
01.2008 - 01.2009
Bachelor of Science - Electronics & Electrical Engineering
Ladoke Akintola University of Technology
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