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Tavonga Tawonezvi

@tavongatawonezvi

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I build financial data systems, APIs, and scalable web applications.

South Africa

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What I'm looking for

I'm looking to build scalable software, financial data pipelines, and APIs where I can solve practical problems and contribute across backend, data, and web development.

I'm building scalable financial application features at Franc Group for 50k+ users through Flask API-based microservices supporting a Flutter frontend.

I built exchange-API data pipelines that consolidate portfolio balances and a reference-mapping system that auto-corrects invalid deposit references, reducing manual operational overhead by 40%.

Previously at Black Onyx, I automated financial data processing with Python and AWS, built trading-data ETL pipelines, and designed MongoDB storage and REST APIs for transaction analysis.

I've also taught Java and Python at the University of Cape Town, developed websites and integrations, and built projects including a Java MaxSAT solver, a RAG-powered trivia app, and a Boid's algorithm simulation.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Franc Group

Dec 2025 - Present (9 months)

Built and maintained scalable features for a financial application serving 50k+ users, supporting a Flutter frontend via a Flask API-based microservices architecture. Engineered a data pipeline integrating multiple external exchange APIs to consolidate user portfolio balances.

Flutter Flask Microservices API Integration Data Pipelines Python AWS

Software Engineer (Data)

Black Onyx (Currency Hub) PtyLtd

Aug 2024 - Feb 2025 (6 months)

Automated financial data processing using Python and AWS services and built ETL pipelines from several external trading platform APIs. Architected and implemented a MongoDB database for storage and analysis of both historical and real-time trade data.

Python AWS ETL MongoDB REST APIs API Gateway Data Analysis

Computer Science Tutor

University of Cape Town

Feb 2024 - Nov 2024 (9 months)

Tutored undergraduate students, focusing on Java (OOP) and Python fundamentals. Explained complex topics in a clear and understandable manner, using real-world examples and hands-on exercises to reinforce learning.

Java Python Object Oriented Programming Tutoring Communication Skills

Web Developer

Tomorrow Web Solutions PtyLtd

Nov 2022 - May 2024 (1 year 6 months)

Worked on web design projects with a keen eye for detail while consistently meeting deadlines. Demonstrated proficiency in various technologies (JavaScript, jQuery, HTML, CSS), showcasing adaptability and a quick learning curve.

JavaScript jQuery HTML CSS PHP WhatsApp API SMTP

Data Analysis Intern

National STEM Honor Society

Apr 2022 - Oct 2022 (6 months)

Worked on the Website & SEO Team, focusing on web traffic analysis using Google Analytics 4. Leveraged Python libraries such as NumPy and Pandas for data manipulation.

Google Analytics 4 Python NumPy Pandas Excel Data Visualization

Education

Degrees, certifications, and relevant coursework

University of Cape Town

Bachelor of Science, Computer Science

2023 - 2025

Activities and societies: UCT Developer Society, UCT Cricket Club

Pursued a Bachelor of Science in Computer Science, with minors in Applied Statistics and German Language Studies. Recognized on the Dean's Merit List in 2023.