📍 Johannesburg, South Africa
I’m an operations and systems professional transitioning into specialised data roles, bringing 9 years of administrative and systems experience alongside practical projects in SQL, Python, database design and data analytics.
My background includes managing 500+ user profiles across digital platforms, verifying records, investigating system issues, maintaining operational tracking records and handling sensitive documentation. I’m building on that experience through hands-on projects focused on data integrity, database management, reporting and analysis.
I’m completing my BCom in Business Informatics at UNISA and developing my technical skills through independent portfolio projects and professional certifications.
- Data Administration & Quality: Data validation, record maintenance, duplicate detection, missing-value investigation and data quality checks.
- SQL & Database Management: Relational database design, SQL queries, data integrity, joins and reporting.
- Data Analysis: Data cleaning, exploratory data analysis, customer segmentation and business reporting.
- Systems & Data Operations: User account administration, troubleshooting, data transformation and system synchronisation.
A portfolio project focused on data administration, SQL reporting, Excel dashboards and service-level agreement (SLA) monitoring.
Tools: SQL, Excel
SQL-based analysis focused on pension contribution auditing, data quality checks, missing-payment detection and regulatory reporting.
Tools: SQL, MySQL
A relational database project demonstrating schema design, database structure management, referential integrity, indexing and reporting queries.
Tools: MySQL, SQL
A Python data transformation pipeline designed to convert source-system data into OneRoster v1.2-compliant files for learning management system synchronisation.
Tools: Python, Data Transformation
Cleaned and explored retail transaction data, removed 5,268 duplicate records, investigated missing values and pricing anomalies, and documented business insights.
Tools: Python, Pandas, Jupyter Notebook
A machine learning portfolio project exploring credit risk prediction, feature engineering, Weight of Evidence (WoE) encoding and model evaluation. The project reports an improvement in AUC from 0.68 to 0.7822.
Tools: Python, Pandas, Scikit-learn, Streamlit
Data Administration & Quality
- Data validation and record verification
- Data cleaning and duplicate detection
- Missing-value and anomaly investigation
- Data integrity and audit-trail concepts
Databases & Querying
- SQL and MySQL
- Relational database design
- Database normalisation and referential integrity
- Joins, aggregations and reporting queries
Data Analysis & Programming
- Python and Pandas
- NumPy
- Jupyter Notebook
- Exploratory data analysis
- Data preparation and transformation
Reporting & Visualisation
- Microsoft Excel
- Google Sheets
- Power BI and DAX
- Tableau
- Streamlit dashboards
Systems & Governance
- Systems administration and troubleshooting
- User account management
- Data privacy and POPIA awareness
- Data governance fundamentals
- LMS administration and data synchronisation
🎓 BCom Business Informatics — University of South Africa (UNISA)
Final year | Expected completion: November 2026
📊 Associate Data Analyst — DataCamp
⚙️ Associate Data Engineer — DataCamp
🗄️ Database Design — DataCamp
🔐 Data Governance Fundamentals — DataCamp
🛡️ GDPR and Data Privacy Fundamentals — DataCamp
💻 Certificate in Full Stack Development — FNB App Academy
- Practical SQL and database administration skills
- Data quality and reporting portfolio projects
- Python-based data cleaning and transformation workflows
- Business intelligence and analytics capabilities
- LinkedIn: https://www.linkedin.com/in/tinyiko-patience-m-a2350911a/
- Email: tpatiencemathebula@gmail.com
- Portfolio: [Explore my data analytics projects](https://github.com/Tinyiko-Mathebula Open to: Data Administrator, Junior Data Quality Analyst, Data Operations Administrator and suitable entry-level Data Analyst opportunities.
Interested in opportunities across Johannesburg and South Africa, including on-site, hybrid and remote positions.