Open to opportunities

Samuel Darkwah

@samueldarkwah

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Data Analytics Engineer driving insights and automated data solutions.

Ghana

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What I'm looking for

I seek a collaborative role where I can build ETL pipelines, automate reporting, and apply analytics to drive operational improvements and measurable business impact.

I am a Data Analytics Engineer with 4+ years of experience in telecom and logistics, focused on data mining, pipeline analysis, and data management. I design automated reporting tools, build ETL pipelines, and create visualizations that improved network efficiency by 20% and reduced manual reporting effort by 25%.

I have built internal data collection tools, ingested and modeled data using Python, SQL and Airflow, and presented analyses to senior leadership to influence product and pricing decisions. I thrive on cross-functional collaboration, solving operational problems, and expanding my technical skill set.

Experience

Work history, roles, and key accomplishments

Current

Data Mining Analytics Engineer

Current

Linfra Technologies

Jun 2023 - Present (2 years 4 months)

Analyzed network usage patterns and developed visualizations that improved network efficiency by 20%; implemented data-driven solutions to improve sales forecasting accuracy and reduce churn while automating reporting to cut manual effort by 25%.

Data Mining Data Visualization Python SQL ETL Git PostgreSQL Apache Spark

Data Engineer/Analyst

Jetstreamafrica

Mar 2021 - May 2023 (2 years 2 months)

Built 2+ internal data collection tools and ingested data via Python, SQL and APIs into PostgreSQL; created dashboards and notebooks that saved 10+ weekly hours and performed cohort analysis that identified a segment to reduce pricing by 10% to boost revenue.

Python SQL PostgreSQL APIs ETL Apache Spark Tableau)Power BI Git Tableau

Data Modeling and Processing Specialist

Ghana Revenue Authority

Sep 2019 - Mar 2021 (1 year 6 months)

Performed in-depth data validation and ETL on taxpayer datasets to deliver projects with full accuracy and provided training on data management techniques while liaising with supervisors to resolve project issues.