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Abiodun Dosunmu

@abiodundosunmu

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Senior Data Engineer at LigaData, where I developed Sentinel to validate report completeness and data quality.

Nigeria

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At LigaData (MTN Nigeria), I developed Sentinel, a lightweight framework that checks report completeness and data sanity after pipeline runs, helping stakeholders see report readiness and data quality issues.

I design and automate ETL/ELT pipelines with Apache Airflow, Presto, Hive, Python, and Linux. I also built reusable data frameworks to reduce manual processes across ingestion and reporting workflows.

At BlueChip Technologies Limited (MTN Nigeria), I developed and optimized data pipelines and automated data delivery with Python and Apache Airflow. I also partnered with business and data analysts on technical architectures and documentation.

Earlier, I developed ETL pipelines with Apache NiFi and shell scripts at Bluechip Technologies Limited (Vodafone Ghana), and participated in data warehousing and BI work at Fintrak Software.

Experience

Work history, roles, and key accomplishments

Current

Senior Data Engineer

Current

LigaData (MTN Nigeria)

Sep 2025 - Present (1 year 1 month)

Designed and automated end-to-end ETL/ELT data pipelines using Apache Airflow, Presto, Hive, Python, and Linux. Developed Sentinel, a validation framework for report completeness and data sanity, and mentored junior engineers.

Airflow Presto Hive Python Linux ETL ELT Data Pipelines SQL Data Quality Monitoring Mentorship

Senior Data Engineer

BlueChip Technologies Limited (MTN Nigeria)

Jan 2022 - Sep 2025 (3 years 8 months)

Designed, developed, optimized, and maintained ETL pipelines using Python and SQL, improving data processing efficiency. Automated manual processes using Python and Apache Airflow, and managed tasks on Jira.

Python SQL Presto Airflow ETL Data Pipelines Jira Big Data Automation

Data Engineer

Bluechip Technologies Limited (CBN Abuja)

Jan 2023 - Aug 2023 (7 months)

Automated ETL pipelines using Apache Airflow, configured scheduling and logging, and set up monitoring tools leading to a 25% improvement in proactive issue identification. Worked with Hadoop and Hive.

Airflow ETL Hadoop Hive Monitoring Scheduling Logging

Data Engineer

Bluechip Technologies Limited (Vodafone Ghana)

Aug 2020 - Dec 2021 (1 year 4 months)

Developed and built ETL pipelines using optimized batch shell scripts and Apache NiFi. Developed alert systems for monitoring loading processes and installed Apache NiFi on Linux servers.

Shell Scripting Apache NiFi ETL Linux Monitoring Big Data

BI Specialist

Fintrak Software

Jun 2018 - Mar 2019 (9 months)

Participated in the use of Data-Warehousing and BI tools such as Power BI. Implemented ETL pipelines using SSIS to transfer data between SQL databases and provided training guides to clients.

Power BI SSIS ETL SQL Data Warehouse Training