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Joseph Sah

@josephsah

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Geospatial analyst at Barry Callebaut Ghana, quality-assuring traceability data for 100,000+ farmers.

Ghana

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What I'm looking for

I’m seeking to apply my geospatial reasoning and analytical QA background to AI model evaluation and geospatial reasoning systems.

At Barry Callebaut Ghana, I manage and quality-assure farmer and volume records in a traceability data environment covering 100,000+ farmers. I develop Power BI dashboards and reports that support sourcing, sustainability, audit, and compliance decisions.

I also build validation and processing workflows using Python, SQL/PostgreSQL, Power Query, and DAX. These workflows reduced manual reporting effort by about two hours per day, while systematic checks improved data accuracy and completeness by about 20%.

At Olam Ghana Limited, I managed a centralized geospatial database containing 100,000+ cocoa farm parcels and supported EUDR readiness through data standards and quality assurance. I also performed spatial analysis, produced thematic maps, and built dashboards to track farmer participation and mapping progress.

My MPhil in Geographic Information Systems at KNUST focused on deforestation risk due to cocoa farming in the Sefwi Wiawso Forest District. I’m seeking to apply my geospatial reasoning and analytical QA background to AI model evaluation and geospatial reasoning systems.

Experience

Work history, roles, and key accomplishments

Current

Data Analyst – Traceability

Current

Barry Callebaut Ghana

Oct 2025 - Present (1 year)

Managed and quality-assured farmer and volume records within a traceability data environment covering 100,000+ farmers. Developed Power BI dashboards and automated validation workflows to improve data accuracy and reduce manual reporting effort.

Python SQL PostgreSQL Power BI Power Query DAX Data Validation QA&QC QGIS GIS

GIS Lead -- M&E

Olam Ghana Limited

Jan 2023 - Oct 2025 (2 years 9 months)

Managed a centralized geospatial database of 100,000+ cocoa farm parcels and supervised field data collection across 70+ districts. Built Power BI dashboards and automated reporting workflows, reducing manual reporting time by approximately 50%.

GIS QGIS ArcGIS PostGIS PostgreSQL Python Power BI Power Query Data Quality QA&QC Field Data Collection Training

Agronomist

Olam Ghana Limited

Mar 2020 - Dec 2022 (2 years 9 months)

Supervised 8 field officers and coordinated collection of socio-economic, environmental and farm-level data. Trained 3,000 farmers on Good Agricultural, Social and Environmental Practices and implemented cocoa agroforestry activities.

Agronomy Field Data Collection Training Community Engagement Environmental Practices Agroforestry

Education

Degrees, certifications, and relevant coursework

Kwame Nkrumah University of Science and Technology

MPhil, Geographic Information Systems

2024 -

Pursuing an MPhil in Geographic Information Systems with a thesis on assessing deforestation risk due to cocoa farming in the Sefwi Wiawso Forest District.