Tshele Letuka

Tshele Letuka

Junior Data Analyst | Proficient in Python, SQL & Power BI | Turning Data into Insights
South Africa
Sesotho (Southern Sotho), Setswana (Tswana), English

About Me

Data Analyst with proven expertise in data analytics, business process optimization, and stakeholder engagement. Skilled in SQL, Power BI, Python, and ETL pipelines, with a strong track record of transforming complex dat…

Experience

Customer Service Specialist

Hastings Direct
Mar 2023 - Present · 3 years 4 months

Delivered fast, solution-oriented support, enhancing customer satisfaction.
Managed cases via ServiceNow, resolving technical issues and improving communication workflows.

Freelance Data Analyst
Mar 2023 - Present · 3 years 4 months

Developed a command-line data analysis tool using Python, pandas, and logging., Developed a Smart Inventory Forecasting App with Streamlit and Prophet., Created a Retail Demand Forecasting App.

Retention Specialist

Hastings Direct
Mar 2021 - Feb 2023 · 1 year 11 months

Retained customers by resolving queries, negotiating renewals, and promoting tailored insurance solutions to meet their needs.
Accurately updated policy information in internal systems and ensured compliance with industry regulations and company procedures.

Retention Specialist

Hastings Direct
Mar 2021 - Feb 2023 · 1 year 11 months

Retained customers by resolving queries, negotiating renewals, and promoting tailored insurance solutions., Updated policy information in internal systems and ensured compliance with regulations.

Lead Generator

Outsurance
Mar 2020 - Feb 2021 · 11 months

Conducted customer research and analysis to support lead qualification and business development.
Identified inefficiencies in lead handling and proposed process enhancements.

Lead Generator

Outsurance
Mar 2020 - Feb 2021 · 11 months

Conducted customer research and analysis to support lead qualification and business development., Identified inefficiencies in lead handling and proposed process enhancements.

Software Developer

Capital Software
Jul 2015 - Feb 2020 · 4 years 7 months

Designed, developed, and maintained software applications to support internal business processes.
Wrote clean, efficient code and performed debugging and testing to ensure application reliability and performance.
Worked with relational databases (e.g. SQL Server, MySQL), including writing queries and managing data integration.
Collaborated with users and stakeholders to gather requirements, provide technical support, and improve system functionality.

Software Developer

Capital Software
Jul 2015 - Feb 2020 · 4 years 7 months

Designed, developed, and maintained software applications., Collaborated with users and stakeholders to gather requirements and improve system functionality.

Service Consultant

Capitec Bank
Aug 2013 - Jun 2015 · 1 year 10 months

Assisted clients with day-to-day banking needs, including account inquiries, transactions, and product information.
Promoted banking products and services while delivering excellent customer service in a fast-paced environment.

Service Consultant

Capitec Bank
Aug 2013 - Jun 2015 · 1 year 10 months

Assisted clients with day-to-day banking needs., Promoted banking products and services while delivering excellent customer service.

Customer Service Specialist

Hastings Direct
Mar 2023

Delivered fast, solution-oriented support, enhancing customer satisfaction., Managed cases via ServiceNow, resolving technical issues and improving communication workflows.

PROJECTS

Job Market Analytics Dashboard

Duration : 15-May-2025 - 16-May-2025

Built a Streamlit dashboard that visualizes job demand, average salaries, and trends across South African cities using a custom dataset. Designed interactive filters and charts for user-friendly insights.Key Technologies: Streamlit, Python, Pandas, Plotly

Data Insights Tool

Duration : 08-May-2025 - 10-May-2025

Engineered a command-line tool for analysts to clean, merge, and analyze CSV files, generate reports, and export to Excel. Automated manual reporting workflows.

Smart Inventory App

Duration : 07-May-2025 - 07-May-2025

Built a forecasting app with Streamlit and Prophet to predict product demand for retail clients. Allowed CSV uploads, date filtering, and product selection. Improved inventory planning accuracy and reduced stockouts.Tools: Python, Streamlit, Prophet, Plotly, Pandas

Retail Demand Forecasting App

Duration : 05-May-2025 - 07-May-2025

Developed an end-to-end demand prediction tool that cleaned historical sales data, applied regression models, and visualized forecasts in an interactive interface.Tools: Python, Scikit-learn, Streamlit, Statsmodels, Pandas

E-commerce SQL Project

Duration : 04-May-2025 - 06-May-2025

Designed a relational database schema and wrote complex SQL queries to analyze customer behavior, order trends, and product performance in a simulated e-commerce environment.Tools: SQL, MSSQL

Skills

Python Agile Methodology Data Cleansing MS Excel Waterfall Power BI Tableau Business Process Modeling Data Analysis and Reporting SQL Excel Business Process Analysis Business Process Optimization Data Cleaning Reporting Automation Agile Stakeholder Engagement Requirement Analysis pandas logging Streamlit Prophet regression models ServiceNow SQL Server MySQL Git TeamViewer SDLC JAD Sessions JavaScript Jupyter Notebook PostgreSQL MSSQL Scikit-learn Statsmodels argparse Plotly
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