Karabo Choma
Data Scientist
Cape Town
Summary
Data Scientist familiar with cleaning and organizing data for use by technical and non-technical personnel. Advanced understanding of statistical, algebraic and other analytical techniques. Highly motivated and diligent with significant background in data analysis and problem-solving. Developed innovative models that significantly improved decision-making processes. Highly collaborative team player, adaptable to dynamic project requirements, skilled in Python, SQL, and machine learning algorithms.. Demonstrated success in identifying relationships and building creative solutions to business problems. I am a tested initiative taker and worked well with idea pioneering organizations where nothing was certain.
Overview
6
6
years of professional experience
12
12
years of post-secondary education
Work History
Data Scientist
Vicinity Media
Cape Town
05.2022 - 08.2023
- Used GNN model to identify unique users so to improve advertising targeting
- Utilized advanced querying, visualization and analytics tools to analyze and process complex data sets.
- Presented findings orally and in writing with advanced mathematical models.
- Tested and validated models for accuracy of predictions in outcomes of interest.
- Built the foundation for a data pipeline through tensorflow and kuberflow on google cloud platform
Junior Data Scientist
Akiba Digital
03.2021 - 04.2022
- Alternative data feature engineering
- Ensemble model building and other machine learning models
- Train and deploy models on AWS
- Write ETLs for incoming data
- Model performance tracking
- Preprocessing and post-processing scripts
- Trigger scripts
Data Science intern
Akiba Digital
Cape
09.2020 - 02.2021
- Ensemble model building
- Alternative data research on credit insights
- Optimization of model accuracy
- Implementation of data and statistical simulation
- Project research
Data Scientist
Omnisient
Cape Town, South Africa
08.2023 - Current
- Did data quite a lot of data wrangling using t-sql on a Microsoft synapse data warehouse
- Built stored procedures to to transform data into use case ready projects.
- Did data analysis exercises to understand client data, pull out questions and plan modelling projects.
- Properly formatted data for model input. For instance handling special or nonsensical characters, encoding, advanced binning technique, standardizing data and so on.
- Conducted Extensive feature engineering and feature selection exercises to prepare data for model.
- Built a number of models with varying use cases including credit scoring, lookalikes for marketing, health scores e.t.c
- Evaluated model performances using metrics like gini, ROC/AUC, confusion matrix, R square, MSE.
- Compiled, cleaned and manipulated data for proper handling.
- Automated repetitive tasks using scripting languages such as Python or R, saving time during the analytical process significantly.
- Participated actively in interdisciplinary teams'' work integrating domain knowledge from product development, sales, data engineering and software engineering departments into the analytical process.
Data analyst Intern
Trusted Interns, Cape
03.2020 - 08.2020
- Data research through surveys and google analytics
- Data cleansing through Python Pandas using Jupyter notebook
- Data analysis and interpretation and Analysis documentation
- Statistical modeling
- Data mining
Software development trainee/Data Analyst Intern
Capaciti, Cape
09.2019 - 03.2020
- Web development through HTML,CSS and JavaScript 228 Yusuf Drive,
- Schotsche Kloof,
- Cape Town, 8001 0673479595 chomakarabo@gm ail.com
Education
Bcom - Applied Statistics
University Of Cape Town
Cape Town, South Africa 02.2016 - Current
High School Diploma -
Stanza Bopape Secondary
Pretoria, South Africa 01.2009 - 12.2013
Skills
AWSGlue, Sagemaker, S3, Lamda functions
Timeline
Data Scientist
Omnisient
08.2023 - Current
Data Scientist
Vicinity Media
05.2022 - 08.2023
Junior Data Scientist
Akiba Digital
03.2021 - 04.2022
Data Science intern
Akiba Digital
09.2020 - 02.2021
Data analyst Intern
Trusted Interns, Cape
03.2020 - 08.2020
Software development trainee/Data Analyst Intern
Capaciti, Cape
09.2019 - 03.2020
Bcom - Applied Statistics
University Of Cape Town
02.2016 - Current
High School Diploma -
Stanza Bopape Secondary
01.2009 - 12.2013