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mathysaak/README.md

Matias Sarapura

QA Automation Engineer · AI Model Evaluator · Mechatronics Technician

From hardware circuits to data pipelines — I understand systems end to end.

LinkedIn GitHub


👋 About me

I'm a Programmer Analyst (in progress) and Mechatronics Technician based in Jujuy, Argentina 🇦🇷. My path started with physical systems — repairing electronics, configuring networks — and evolved into software quality and data automation.

When something breaks, I look for where in the stack it breaks, not just what the error says. That end-to-end perspective is what I bring to QA.

Currently building data pipelines on economic datasets, automating tests with Python and Playwright, and evaluating AI model outputs professionally at Outlier.


💼 Experience

AI Model Evaluator · Outlier · 2025–present Designing and evaluating technical prompts for frontier AI models. Assessing output quality, correctness, and reasoning. Domain: software engineering.

QA Tester · uTest · 2025–present Functional and exploratory testing on web and mobile platforms. Bug lifecycle management, test case execution, reproduction steps documentation.

IT Support & Electronics Repair · Freelance · ongoing Hardware diagnostics and repair (notebooks, industrial scales, consumer electronics). Network configuration and OS troubleshooting.


🛠️ Skills & Tools

Automation & QA

Python Playwright Pandas SQL Git Jira

API Testing · Web Scraping · ETL Pipelines · Data Validation · Test Case Design · Bug Reporting · Agile/Scrum

Data & Visualization (learning)

Power BI Excel Tableau

Systems & Hardware

Linux Arduino Networking

Hardware Diagnostics · OS Troubleshooting · Electronics Repair · Mechatronics


🚀 Projects

📊 SADE — Economic Data Pipeline

Automated pipeline that extracts, validates, and stores Argentine macroeconomic indicators from INDEC, BCRA, and other public sources.

Stack: Python · Playwright · Pandas · SQL What it does: Fetches data via government APIs with Playwright as fallback scraper. Applies QA rules to detect anomalies before storage. Visualization layer in progress (Power BI).

🔗 View repository · Active development


🎓 Linguali — English Learning App

Web app for practicing English irregular verbs through timed challenges.

Stack: Angular · TypeScript What it does: Custom irregular verb conjugation engine, responsive UI, deployed live.

🔗 Live Demo · Repository


🌍 Languages

🇦🇷 Spanish — Native  ·  🇧🇷 Portuguese — C1  ·  🇺🇸 English — B2


📫 Open to QA Automation and Data Engineering opportunities. LinkedIn · mathysaak

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