Open to opportunities

Vonani Mdaka

@vonanimdaka

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Data analyst and data scientist skilled in analytics, engineering, and ML.

South Africa

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What I'm looking for

I seek a data role where I can apply analytics, ML and cloud data engineering to deliver business insights, grow technical impact, and work within collaborative, outcome-driven teams.

I am a data professional with a degree in Mathematical and Computer Science and formal data science training from Explore Data Science Academy, combining strong programming fundamentals with applied analytics and machine learning experience.

I have worked as a Data Analyst supporting enterprise clients, where I collected, cleaned and migrated data, developed and maintained databases, produced executive reports and built dashboards and insights using Power BI and other visualization tools.

I have built machine learning models, performed feature engineering and EDA, deployed models to the cloud, and worked across ETL, data warehousing and cloud platforms using tools such as Python, SQL, Spark, AWS, Azure and Snowflake.

Experience

Work history, roles, and key accomplishments

Data Analyst

Impela Consulting

Oct 2023 - Sep 2024 (11 months)

Identified and consolidated data sources, cleaned and migrated datasets, and produced executive reports and insights supporting Eskom projects; implemented and maintained databases and ETL pipelines to improve data quality and access.

SQL Microsoft SQL Server Power BI Python Data Cleaning PostgreSQL MySQL AWS

Data Science Intern

Explore Data Science Academy

Jul 2021 - Jun 2022 (11 months)

Performed EDA, feature engineering and built machine learning models, designed data warehouses and dimensional models, and developed dashboards and ETL solutions for deployment to cloud environments.

Python SQL Power BI Google Data Studio SSIS SSAS Dimensional Models Git Machine Learning

Education

Degrees, certifications, and relevant coursework

University of Limpopo

Bachelor of Science, Mathematics and Computer Science

Completed a degree with majors in Mathematics and Computer Science, gaining programming and database skills including C++, Java, C#, HTML/CSS/JavaScript, and SQL.

Explore Data Science Academy

NQF Level 5 Data Science, Data Science

Completed an NQF Level 5 Data Science qualification covering data gathering, analytical programming, visualization, machine learning, model deployment, and soft skills.