MFMurilo Filho

Senior QA Engineer · Remote from Brazil (UTC-3)

I make releases boring.

Test automation, API and data-quality testing for teams that ship every day. 6+ years across logistics, fintech, benefits SaaS and iGaming, working in English with US and European teams.

See my work Get in touch
ci / pull-request #482
  • ui · checkout, permissions, tenants2m 14s
  • api · contract + RBAC matrix48s
  • mobile · appium + maestro6m 02s
  • data · bronze → silver → gold1m 31s
  • a11y · WCAG 2.1 AA22s
All checks passed · 0 flaky · ready to merge

33% → <5%

flaky failures after refactoring a Selenium/Java suite

1h30 → 35 min

regression time on the same suite, in GitLab CI

~950

automated data-quality checks triaged daily on a Kafka data lake

2–3h → <30 min

daily triage time, separating real regressions from noise

What I do

Quality that runs on every pull request

Test automation

UI and API suites in your repository and your CI from the first week. Critical flows first: sign-up, checkout, permissions, the parts that cost money when they break.

Playwright · Selenium · Cucumber · TypeScript · Java

Mobile testing

Android end-to-end suites in Appium and Maestro on emulators in CI, from smoke flows anyone can read to device and lifecycle checks that need code.

Appium · Maestro · WebdriverIO

API and security testing

Contract tests against your OpenAPI spec, role and tenant matrices, token edge cases. The authorization bugs that functional tests miss.

REST · OpenAPI · Auth0/JWT · RBAC · Postman

Data quality

End-to-end checks for event-driven pipelines and SQL audits that find duplicates, gaps and drift between layers before your reports do.

Kafka · PostgreSQL · advanced SQL · medallion lakes

Flaky test rescue

I sort every failure into real bug, test instability or environment problem, fix the root causes and leave a suite the team trusts again.

Root-cause analysis · CI hygiene

QA from scratch

As a founding QA I've set up the strategy, test plans, bug templates and automation for a team with no QA process, and mentored others along the way.

Strategy · BDD · mentoring

Selected work

Open-source frameworks with green CI

Each one runs end to end with one command, runs in CI on every push, and most publish a live report.

Web · UI + API

Playwright E2E framework

Persona fixtures, an RBAC matrix, tenant isolation, network mocking, race conditions and axe accessibility scans. Sharded CI.

CodeLive report

Mobile · Android

Appium + Maestro

The same shopping-app scenarios written in both tools, each on its own emulator in CI, plus a test that pins a crash the suite found.

CodeLive report

API · Security

API RBAC testing

136 tests against a multi-tenant billing API: forged JWTs, a permission matrix, BOLA, mass assignment and a strict OpenAPI contract.

Code

Data · Pipelines

Data pipeline quality lab

E2E and SQL data-quality tests on a Kafka bronze/silver/gold pipeline, with a canary job that injects real defects to prove the checks work.

Code

Web · BDD

Selenium + Cucumber BDD

Declarative Gherkin on a Dockerized Selenium Grid, parallel scenarios and API-backed setup, with an Allure report.

CodeLive report

Starter kit

QA Starter Kit

A ready-to-clone Playwright + TypeScript setup: UI and API tests, typed fixtures, contract checks, multi-environment config and sharded CI.

Code

Experience

Where I've worked

Logistics, benefits SaaS, fintech and iGaming, as an employee, a contractor and an independent consultant.

Toolbox

  • TypeScript
  • JavaScript
  • Java
  • Python
  • SQL
  • Playwright
  • Jest
  • Appium
  • Maestro
  • Selenium
  • TestNG
  • Cucumber
  • Robot Framework
  • Postman
  • ReadyAPI
  • k6
  • JMeter
  • Kafka
  • PostgreSQL
  • Docker
  • GitHub Actions
  • GitLab CI
  • Jira
  • Claude Code

  1. 2024 – now

    Senior QA Engineering Consultant Independent

    Quality strategy, test design and automation for startups and technology companies.

  2. 2025 – now

    Founding QA Engineer Sideup · benefits SaaS

    First QA at the company: built the testing strategy and the web, mobile (Appium, Maestro) and API automation from zero.

  3. 2026

    Senior QA Engineer US logistics platform · contract

    API, frontend and data-quality automation on microservices and a Kafka-fed data lake; owned the daily triage of ~950 checks.

  4. 2025 – 2026

    Senior Automation QA Engineer Sportingtech · iGaming

    Frontline QA for Brazil's federal sports-betting regulation rollout; cut flaky failures from 33% to under 5%.

  5. 2023 – 2025

    Software QA Engineer II WEX Inc. · fintech

    Selenium/TestNG, Python and Robot Framework suites wired into CI; mentored two junior QA engineers.

  6. 2021 – 2023

    QA Engineer and QA Analyst Programmers Beyond IT · Kanttum

    Web and mobile testing, Selenium and Postman automation, test plans and release support.

Contact

Let's make your next release a quiet one.

Open to full-time remote roles and to freelance projects. I usually reply within a day.

murillovskfilho2@gmail.com LinkedIn Upwork GitHub