System & Data Architecture
Schema & ERD Design
Python · SQL · JavaScript
AI Agents (Copilot, Claude)
E2E Automation
Data Quality Checks
GitHub Actions (CI)
Task Scheduling
AWS · Render
Monitoring & Alerts
- Owned end-to-end security and reliability work on an undocumented Django production app, ramping up on Django and the codebase with no structured onboarding: identified and fixed a critical flaw (inbox encryption using symmetric instead of asymmetric), and completed a stubbed password-health/breach-detection feature to production.
- Built the company's first automated test infrastructure from scratch (Pytest + Playwright/TypeScript, manual and automated regression), defining the testing methodology and structure independently across two production projects (partilhar.link and Concierge) — the framework was since adopted on a second team's project.
- Delivered full-stack improvements across security (MFA/recovery flows), backend logic, data handling, and UI/UX — including proposing and driving a reactive-filter redesign that removed full-page reloads — working independently with no formal handover.
- Enabled team-wide adoption of the test suite by proactively running a walkthrough session on setup and execution, ensuring continuity beyond the internship.
I'm an Informatics Engineering graduate working across fullstack development, backend systems, and data engineering - not any single lane. I'm comfortable owning a project end-to-end, from an undocumented codebase to a merged, tested, production-deployed feature.
As a Software Engineer Intern (SEIT) at Valuedate.io, I owned security and reliability work on a production Django app - identifying and fixing a critical inbox-encryption flaw, shipping a stubbed password-health feature to production, and building the company's first automated test infrastructure (Pytest + Playwright) from scratch, later adopted by a second team.
On the data side, I design ETL/ELT pipelines end-to-end - ingestion, PySpark transforms, star-schema modeling, and orchestration with Airflow - as seen in my World Bank GDP and customer-churn ML pipelines. I hold the Data Engineer Professional and Data Scientist Professional certifications from DataCamp.
I also built and open-sourced levee, a privacy-first desktop app that tracks cloud, AI, and dev-tool spend entirely on-device - no cloud sync, no telemetry. It's out and usable now, with the code public on GitHub, and still gets regular updates and fixes.
Open to Fullstack Engineer, Backend Engineer, Data Engineer, and Test Automation roles - remote worldwide or hybrid in North Portugal.