Cristina Varas · Data Scientist · Applied AI · Speaker

I turn data & AI into systems people can actually use.

I build practical AI products, machine-learning workflows and intelligent data experiences — from experimentation and AI workbenches to production-ready applications.

Explore selected work

LinkedIn GitHub Medium Contact

AI Agents Machine Learning Vector Search Data Science AI Workbench

Selected work

Selected builds in AI and data science.

A selection of projects where I explore the full path from technical problem to working experience.

All projects

Agentic AI

Agent Memory Workspace

A persistent memory backend that connects AI agents to stored context and retrieval.

FastAPI · Autonomous Database · OCI Generative AI Read the build

OCI Data Science YOLO image classification project and training workflow

Data Science · OCI

Computer vision, from training to demo

An insect classifier trained on OCI Data Science and exposed through an interactive Gradio app.

YOLO · OCI Data Science · Gradio Read the build

AI-assisted APEX

Building APEX apps with AI

A code-driven workflow for generating and versioning an Oracle APEX application.

APEXlang · SQLcl · Oracle APEX Read the build

How I work

Explore. Build. Explain.

The technical work matters, but so does making the result understandable enough to be useful.

Explore

Frame the problem, data and constraints before choosing the technology.

Build

Prototype quickly, connect the real systems and test the architecture hands-on.

Explain

Turn the implementation into a story, demo or guide that others can reuse.

Speaking & live demos

Technology makes more sense when you can see it working.

All talks

REC / DEVELOPER COACHINGORACLE DATABASE 23ai

Securing AI Workflows in Healthcare with Oracle Database 23ai

Live architecture, practical AI and the engineering detail behind the demo.

Writing

Technical writing, with the implementation included.

Technical guides, experiments and lessons from building with AI, data and Oracle technology.

Browse all articles

Oct 13, 2026

Running Voxtral TTS on OCI Data Science: an A10 lab with streaming benchmarks

Jul 16, 2026

I Built a Full Oracle APEX App Without Dragging a Single Component

May 26, 2026

Building an Oracle Agent Memory Workspace — Part 3/3: Bringing Persistent Agent Memory into Oracle APEX

Across the web

Follow the work where it happens.

Different channels, different depth — all centred on practical AI, data science and building things that work.

LinkedIn / activity

Ideas, launches and the day-to-day work.

Short-form notes, event updates, technical observations and new projects as they happen.

Open LinkedIn ↗

Medium / long-form

Technical writing with the implementation included.

Deep dives into Oracle APEX, OCI Data Science, AI agents, machine learning and applied AI.

Read on Medium ↗

GitHub / code

Code, experiments and repositories.

A direct route from ideas and architecture into code and hands-on technical exploration.

View GitHub ↗

Cristina Varas / Data Scientist

About

I work where data science, AI and product delivery meet.

In Oracle's OCTO EMEA, I work across Data Science, Machine Learning, AI agents, Oracle AI Database, OCI and APEX — moving between notebooks, architecture, code, demos and the conversations that turn technical possibilities into usable systems.

More about me