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Hi, I'm Olugbenga Ajiga, a data engineer with over nine years of experience building scalable, high-performance data infrastructure that handles millions of records daily. I specialize in Azure Databricks, PySpark, and modern lakehouse architectures, with experience across Azure, AWS, and Google Cloud. I enjoy turning data into actionable insights through ETL/ELT pipelines, ML integration, and CI/CD for data workflows.…Hi, I'm Olugbenga Ajiga, a data engineer with over nine years of experience building scalable, high-performance data infrastructure that handles millions of records daily. I specialize in Azure Databricks, PySpark, and modern lakehouse architectures, with experience across Azure, AWS, and Google Cloud. I enjoy turning data into actionable insights through ETL/ELT pipelines, ML integration, and CI/CD for data workflows.

Olugbenga Ajiga

Data Scientist, Full Stack Developer, Web Developer, +3

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Hi, I'm Olugbenga Ajiga, a data engineer with over nine years of experience building scalable, high-performance data infrastructure that handles millions of records daily. I specialize in Azure Databricks, PySpark, and modern lakehouse architectures, with experience across Azure, AWS, and Google Cloud. I enjoy turning data into actionable insights through ETL/ELT pipelines, ML integration, and CI/CD for data workflows.…Hi, I'm Olugbenga Ajiga, a data engineer with over nine years of experience building scalable, high-performance data infrastructure that handles millions of records daily. I specialize in Azure Databricks, PySpark, and modern lakehouse architectures, with experience across Azure, AWS, and Google Cloud. I enjoy turning data into actionable insights through ETL/ELT pipelines, ML integration, and CI/CD for data workflows.

Available to hire

Hi, I’m Olugbenga Ajiga, a data engineer with over nine years of experience building scalable, high-performance data infrastructure that handles millions of records daily.

I specialize in Azure Databricks, PySpark, and modern lakehouse architectures, with experience across Azure, AWS, and Google Cloud. I enjoy turning data into actionable insights through ETL/ELT pipelines, ML integration, and CI/CD for data workflows.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Data Engineer at Sense Charity

February 1, 2024 - November 22, 2025

Led data engineering initiatives for a national charity; built scalable ETL pipelines on Azure Databricks integrating HR, operations, and third-party data into a centralized data warehouse; processed over 100k daily records and enabled cross-cloud analytics with Azure and Google Cloud (BigQuery). Improved HR data provisioning efficiency by 95% through data integration from iTrent to Active Directory; applied NLP sentiment analysis to customer feedback increasing satisfaction by 25%; deployed statistical models to identify key performance factors, reducing agent errors by 10%.

SQL Developer at E (Gas & Electricity) Ltd

December 1, 2023 - December 1, 2023

Led enterprise-scale data solutions handling 53,500+ daily transactions; engineered SSIS ETL workflows with real-time inventory integration; oversaw cloud migration of FUTURA CRM from on-prem SQL Server 2016 to Azure SQL and Databricks, migrating 70 SSIS packages, 80+ reports and 100+ stored procedures, with archival via AWS S3. Optimized high-volume DW refresh jobs cutting processing time from 6 hours to 2.5 hours; built regional sales dashboard using SQL Server, Excel, and REST API data via SSIS; implemented T-SQL data quality monitoring increasing address data accuracy from 75% to 95% and reducing support complaints by 20%.

Data Engineer at Allied Worldwide Ltd

May 1, 2023 - May 1, 2023

Contributed to cross-functional Scrum teams delivering scalable asset management solutions; designed executive dashboards and analytics pipelines in Power BI, leveraging Google Cloud Platform (BigQuery + Cloud Storage) and on-prem SQL sources to track campaign performance and donor churn, reducing monthly reporting time by 50%. Directed a data reconciliation project to resolve inconsistencies between Dynamics 365 CRM and Allied DW, deploying T-SQL scripts that cleaned 17,600+ records and improved email delivery accuracy. Presented monthly insights to C-level executives, recognized for actionable analytical contributions.

Senior Data Engineer at Dangote Industries Ltd

February 1, 2022 - February 1, 2022

Managed enterprise data infrastructure supporting 400,000+ monthly queries and data warehouse solutions valued at over $400k. Architected a high-performance SQL Server data warehouse and oversaw a system migration from MS Access to MSSQL Server for the Weighbridge Management System, delivering cost savings and performance gains. Developed automated biometric data services for the Daily Attendance System and led cross-functional analytics projects improving supplier evaluations and revenue, while partnering with cloud vendors to deploy hybrid data infrastructure across Azure, AWS, and Google Cloud.