Software Tester · Python & Test Automation · Automation & Robotics engineer

I'm a Software Tester with a degree in Automation and Robotics. I work where quality meets code: writing automated tests, breaking things on purpose, and building Python tools that turn messy real-world data into something reliable and useful.

My projects lean into financial data engineering and serious testing practice — not just "does it run", but how do I prove it stays correct.

• Preparing for ISTQB CTFL v4.0 — built my own interactive study lab for it (below)
• I care about testing beyond happy paths: property-based, mutation, contract & E2E
• FinTech side-quests: dividends, taxes, and personal-finance automation

The numbers behind the pinned repos below — the part that matters most for a tester:

• XTB Dividend Tax Analyzer — 600+ tests across 8 tiers: unit, integration, property-based (Hypothesis), mutation, contract, fuzz, metamorphic & security.
• Dividend Dashboard — Playwright E2E suite for the Streamlit UI with Page Object Model, axe-core accessibility (WCAG) and responsive tests.
• Bank Transaction Categorizer — property-based tests (Hypothesis), mypy strict, and CI/CD quality gates.
• ISTQB CTFL v4.0 Study Lab — Playwright E2E on a cross-browser matrix (Firefox, WebKit, mobile Safari) + Vitest unit suite + CI, with a live demo on GitHub Pages.

• Languages — Python · TypeScript · Bash
• Testing (Python) — pytest · Hypothesis (property-based) · pandera (schema/contract) · mutmut (mutation) · bandit & safety (security) · tox
• Testing (Web) — Playwright (E2E) · Vitest · Testing Library
• Data & viz — pandas · NumPy · Plotly · Streamlit · openpyxl
• Web & GUI — React 19 · Vite · CustomTkinter
• DevOps — Docker · Makefile · GitHub Actions (CI/CD) · pre-commit
• Quality & tooling — mypy (strict) · ruff · ESLint · Poetry · pydantic · loguru
• AI-assisted — Claude Code (primary) · Gemini · GitHub Copilot · Cursor · n8n · MCP servers

Building self-hosted apps end to end — React + Vite + Tailwind + shadcn/ui on the frontend, FastAPI + PostgreSQL + Alembic on the backend, shipped with Docker — so I can test them end to end: Playwright E2E suites, API tests, and CI quality gates against my own production code.