~6,000Cypress + TypeScript E2E tests running every day across active branches
25 min to 8 minFull regression suite, after API pre-seeding
30%fewer customer issues after hardware-in-the-loop stress testing
Apple (Hired through Cognizant)open_in_new
Siri Automation Tester · Locale Lead · Manual Tester
Oct 2020 – Feb 2023 | Madrid, Spain
3testers mentored as Brazilian Portuguese locale lead
200+defects logged and verified on console and mobile releases
I'm Marcelo,QA Lead & Developer
Lead QA Automation Engineer & SDET @ Board International
I run nearly 6,000 E2E tests a day on a canvas-rendered BI app, where there's barely any DOM to work with. I make them less flaky, faster, and easier to debug, and I use AI only where it actually helps.
- ~6,000E2E tests a day
- 83tools in production
- 7articles published
- 3apps shipped
Built off the clock
Three personal apps, designed, shipped and tested end to end.
LoopBeat
Your music. Everywhere.
A passwordless, invite-gated personal music tool. Paste a YouTube URL, a search, or a Spotify / Apple Music playlist link — LoopBeat downloads the audio, transcodes it to MP3 or AAC, stores it in object storage, and hands you a short-lived signed download link.
- Astro + React 19
- FastAPI · Python 3.11
- Postgres + Cloudflare R2
QA Forge
Point at your code. Ship better tests.
An AI-powered QA studio that runs entirely in the browser. Point it at a URL, repo, or folder and QA Forge drafts scoped test plans, finds coverage gaps, writes runnable Playwright or Cypress specs, converts suites between frameworks, and spots and fixes buggy test code — using your own AI key, with nothing stored on any server.
- 6 AI-powered QA tools
- Playwright & Cypress output
- BYO key — Claude · GPT · Gemini · Ollama
- 100% in-browser — no backend
HELLGATE
Classic DOOM, running in your browser.
A browser-based DOOM engine launcher and retro gaming showcase. Built on Chocolate Doom compiled to WebAssembly, HELLGATE runs entirely in the tab with zero backend or file uploads. Bundles DOOM, The Ultimate DOOM, DOOM II, Final DOOM (TNT & Plutonia), and Freedoom Phase 1 & 2, while supporting curated megawads (SIGIL I & II by John Romero, BTSX 1 & 2) and dark fantasy classics (Heretic & Hexen). Features an interactive PWAD/DEH Mod Loader, WebAudio MIDI OST Player, IndexedDB save file (.dsg) import/export manager, retro CRT scanline filters, and multi-device input with gamepad deadzone calibration.
- Real Chocolate Doom engine — WASM
- DOOM · Ultimate DOOM · DOOM II bundled (+ Final DOOM & Megawads)
- PWAD/DEH Mod Loader & WebAudio MIDI OST
- Keyboard · gamepad (deadzone) · touch (haptics)
- IndexedDB saves & .dsg save manager
Stack in production
The toolchain I run every day: what I test with, how I ship it, and what I build.
E2E & unit test automation
5,000+ Cypress + TypeScript E2E tests reviewed, refactored and de-flaked in Azure DevOps; three greenfield frameworks built from scratch with Cypress and Playwright.
- Cypress
- Playwright
- Appium · XCUITest · Espresso
- Selenium
- WebdriverIO
- Jest
- Puppeteer
- Pytest
- JUnit 5
- TestNG
- Cucumber · Gherkin
- Page Object Model
API, contract & network
API-driven data seeding, network mocking and schema validation inside E2E runs, with real backend data created, validated and cleaned up after each run.
- REST API
- GraphQL
- Postman · Bruno
- Charles Proxy
- Cypress intercepts & stubs
- Network mocking
- Schema validation
- Supertest
- SQL · Postgres
- Mailosaur · OTP · magic links
Performance & load testing
k6 on the REST API layer; LoadRunner Cloud (TruClient/VuGen) for real-browser user journeys.
- k6
- LoadRunner Cloud
- TruClient
- VuGen
Mobile & IoT testing
Weekly iOS/Android releases tested against physical Nespresso Vertuo machines over BLE and Wi-Fi; Siri automation in Swift and Xcode.
- iOS devices & simulators
- Android devices & emulators
- Nespresso Vertuo machines · BLE · Wi-Fi
- Xcode
- Android Studio
- MS App Center
- Firebase
- UAT · MAT on physical hardware
CI/CD & DevOps
YAML pipelines running 4-5 browsers in parallel with static report pages auto-deployed; Dev to Prod promotion with Git tags and ArgoCD.
- Azure DevOps Pipelines
- GitHub Actions
- GitHub
- Bitbucket
- Git · tag-based promotion
- Docker
- ArgoCD
- AWS
- YAML pipelines · 4-5 browsers in parallel
- Nightly builds
Reporting & test management
Allure, Mochawesome and Mocha-JUnit with video, screenshots and traces; Step Decorators that cut debugging from 3-4 hours to seconds.
- Allure
- Mochawesome
- Mocha-JUnit
- Playwright HTML · traces
- Step Decorators · AI-powered reporter
- Video · screenshots on failure
- Jira
- Xray
- Confluence
- Test case repositories · KPIs
GenAI & agents
AI-assisted, multi-agent workflows for E2E bug fixing, and an AI-powered reporter that points at the failing step in CI.
- Claude · Claude Code
- Codex · ChatGPT
- Gemini
- Ollama
- DeepSeek
- Multi-agent workflows
Languages
Typed, maintainable test and tooling code across stacks.
- TypeScript
- JavaScript
- Python
- Swift
- Ruby
- Java
- Gherkin
- Bash · Zsh
- YAML
- C (Doom engine)
Web, backend & hosting
What I ship end to end: React and Next.js features in production SaaS, FastAPI + Postgres services, edge deploys on Cloudflare, Vercel and Render.
- React
- Next.js
- Node.js
- Astro
- Vite
- Tailwind
- FastAPI
- PostgreSQL
- Hasura
- Cloudflare · R2 · Wrangler
- Vercel
- Render
- Jira · Atlassian
Recent Experience
Last 5 roles — SDET & QA Manager
