Rosemery Mhlanga
Analyst
Pretoria
Summary
Detail-oriented and analytical Data Scientist with a strong foundation in statistical analysis, data management, and programming. Skilled in Python, SQL, and BI tools with proven ability to clean, validate, and analyze complex datasets. Willing to learn, open to continuous development, and known for maintaining a positive attitude in challenging environments. Passionate about using data science to drive decision-making, improve efficiency, and deliver actionable business insights.
Overview
1
1
year of professional experience
4
4
Certifications
3
3
Languages
Work History
Business Analyst Graduate
Old Mutual Insure
- - Created dashboards and visual reports using Excel, Power BI, and SQL.
- - Analyzed claims department data for resource planning, capacity tracking, and productivity measurement.
- - Presented findings and insights to management for strategic decision-making.
- - Ensured data accuracy, clarity, and compliance in all reporting deliverables.
- Date
Student Assistant – Systems Analysis & Design
North-West University
01.2022 - 01.2023
- - Supported learning in SQL queries, subqueries, database modeling (ERD), and data flow diagrams.
- - Conducted quality checks on assignments, maintained student performance data in Excel, and generated participation reports.
- - Contributed to data accuracy, compliance, and structured reporting processes.
Tutor – Data Analytics
North-West University
01.2022 - 01.2023
- - Delivered lessons on statistical formulas, data visualization, and decision-making using Excel.
- - Guided students in performing exploratory data analysis (EDA) to identify patterns, anomalies, and insights.
- - Facilitated weekly sessions and knowledge-sharing discussions, building collaborative learning.
- - Developed reporting templates and dashboards to support visualization and trend analysis.
Education
BSc. in Information Technology (NQF Level 7) -
North-West University
01.2023
National Senior Certificate - undefined
Edward Phatudi Secondary School
01.2018
Skills
- Data Management & Analysis: Data cleaning, validation, preparation, and integration
- Statistical & Analytical Methods: Regression, hypothesis testing, clustering, EDA
- Programming & Tools: Python (NumPy, Pandas, Matplotlib), SQL, Excel, NET/C#, Databricks (Fundamentals)
- ETL Processes: Data extraction, transformation, and loading for analytics pipelines
- Business Intelligence & Visualization: Power BI, Excel Dashboards, Data Reporting
- Visualization Dashboards: Created dashboards for resources planning and capacity planning in claims departments
- Collaboration & Compliance: Peer reviews, quality checks, governance adherence
Websites
Certification
Python for Data Science – Great Learning (2023-10)
References
Ntombifuthi, Ngcobo, Quality Assurance, 081 761 4226
Accomplishments
Golden Key Recognition: Selected among the top 15% achievers in the Faculty of Natural and Agricultural Sciences (2020 & 2021).
Competencies (Job-Aligned)
- Action Oriented | Collaborates | Customer Focus | Cultivates Innovation
- Ensures Accountability | Manages Ambiguity | Manages Complexity | Drives Results
Timeline
Student Assistant – Systems Analysis & Design
North-West University
01.2022 - 01.2023
Tutor – Data Analytics
North-West University
01.2022 - 01.2023
Business Analyst Graduate
Old Mutual Insure
National Senior Certificate - undefined
Edward Phatudi Secondary School
BSc. in Information Technology (NQF Level 7) -
North-West University