Portia Mahumapelo

Business Intelligence Reporting Specialist with a solid foundation in machine learning, data analysis, and predictive modelling, currently working in advanced analytics. Proficient in Python, SQL, Power BI, and modern libraries including Scikit-learn, Pandas, Seaborn, and Matplotlib. Demonstrated ability to develop scalable ML models, conduct exploratory data analysis (EDA), and drive insights across various sectors

Business Intelligence Reporting Specialist at Mintek (2022-01 – Present)

• Develop and maintain enterprise reporting solutions that provide visibility into operational performance, compliance metrics, and risk indicators.
• Develop automated analytics pipelines using SQL, Python, and Power BI to improve reporting efficiency and scalability.
• Monitor key performance metrics and identify anomalies, trends, and emerging risks through advanced reporting and data analysis.
• Build and optimize data pipelines ensuring data quality, consistency, traceability, and governance compliance.
• Conduct root cause investigations and analytical assessments to identify process inefficiencies, control weaknesses, and opportunities for risk mitigation.
• Partner with business and technology teams to define analytical requirements and implement scalable reporting and monitoring solutions.
• Develop dashboards enabling near real-time monitoring of business performance, operational risks, and strategic objectives.
• Support governance, audit, and compliance initiatives through structured documentation, process mapping, and reporting controls.
• Present analytical findings and recommendations to senior management and executive stakeholders to support strategic decision-making.
• Automated reporting processes resulting in a 40% reduction in reporting turnaround times and a 30% improvement in governance and reporting accuracy.

Senior Technician at Mintek (2006 – 2022)

Conducted financial and operational performance analysis supporting SME mining initiatives.

• Performed feasibility studies, cost analysis, and profitability modelling.
• Developed Excel and Power BI dashboards tracking cost structures, productivity, and operational metrics.
• Delivered analytical insights to stakeholders including government agencies and private sector partners.

MPhil in Engineering Management – University of Johannesburg (2019)

B Tech in Ceramic Technology – Tshwane University of Technology (2001)