Data & ML Consulting
End-to-end data science, machine learning, and AI integration for businesses that want real results — not just pretty dashboards.
What I do
From prototype to production — I cover the full data stack.
Custom ML models built for your specific problem — predictive analytics, classification, regression, anomaly detection — then integrated cleanly into your product or workflow.
Turning raw data into dashboards and reports your team actually uses. Clear, actionable visualizations built with the right tooling for your stack — no unnecessary complexity.
Connecting large language models and AI agents to your existing systems — automating workflows, building intelligent assistants, or extracting structured insight from unstructured data.
Designing and building reliable data infrastructure — collection, transformation, storage, and delivery — so the right data gets to the right place, every time.
About
I'm Jumar Vermeulen — a data scientist and ML engineer based in South Africa. I spent nearly two years as the sole data scientist at a fintech company, owning the entire data function: pipelines, ML models, BI dashboards, AI integrations, and backend software.
My background is a little unusual: I started with a BSc in Physics at the University of the Free State, then completed advanced engineering coursework at Wits. That mix of quantitative rigour and engineering pragmatism shapes how I approach data problems — I care about what works in production, not just what looks good in a notebook.
I work across the full stack. If the problem involves data, I can help.
Credentials
Tech stack
Production-grade tools, not just tutorial experience.
Let's talk
Whether you have a defined project or just a vague sense that your data could be doing more — reach out. I'll give you a straight answer on whether I can help and what it would look like.