Open to opportunities

Tshepo Lefenya

@tshepolefenya

Message

Data analyst and data scientist building ETL and executive BI dashboards.

South Africa

Message

What I'm looking for

I’m looking for remote, hybrid, or on-site roles across South Africa where I can build ETL and BI dashboards, run EDA and predictive models, and turn business needs into data products.

I engineer and maintain cloud-based ETL pipelines and turn them into interactive executive dashboards—like the SA Youth Economic Pulse Dashboard, a live Plotly Dash app combining World Bank API, Stats SA QLFS Q1 2025, and SAPS crime data across nine provinces.

At Moonsimka Real Estate, I’ve built Power BI KPI dashboards with advanced DAX and M-code, designed relational data models, and run EDA, predictive modeling, and A/B testing in Python to support data-first portfolio and operational decisions.

Experience

Work history, roles, and key accomplishments

Current

Founder & Data Analyst

Current

Sankwela Solutions

Jan 2025 - Present (1 year 7 months)

Founded an independent data consultancy, architecting and deploying the SA Youth Economic Pulse Dashboard with multi-module analytics.

Python Pandas REST APIs Railway Data Visualization

Data Analyst

Moonsimka Real Estate

May 2025 - Apr 2026 (11 months)

Engineered cloud-based ETL pipelines and developed interactive Power BI dashboards to track KPIs, enabling data-driven portfolio decisions.

SQL Python Power Query Azure Data Factory Snowflake Power BI DAX ETL Data Modeling EDA predictive modeling A B Testing

Manager & Business Performance Analyst

TFG (The Foschini Group)

Apr 2019 - Apr 2025 (6 years)

Developed KPI dashboards and performance reports, reducing inventory discrepancies by 15% through data tracking and reconciliation.

Excel Power BI KPI Reporting Stakeholder Management Data Analysis

Safety Data Analyst

MTN SHERQ

Jan 2014 - Dec 2018 (4 years 11 months)

Conducted data analysis on workplace safety incidents, reducing incident rates by 25% through root cause analysis and intervention planning.

Data Analysis Root Cause Analysis Data Visualization Regulatory Compliance

Education

Degrees, certifications, and relevant coursework

HyperionDev

Data Science Programme, Data Science

Grade: 99%

Completed a Data Science Programme with an overall grade of 99% and class rank of 7 out of 121, covering Python, SQL, Statistics, Machine Learning, NLP, and Data Visualisation.