QA & Testing
Software Quality
Automation, CI/CD, BDD/TDD, test design and QA fundamentals — the original blog.
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About
I like technology and how it can help us solve problems.
Quality Engineer & Developer
Ensuring product quality from the standpoint of code accessibility and value generation for the customer.
- Role: Quality Engineer @ Liferay
- Website: diogomes.github.io
- City: Recife, Pernambuco
- Education: CS · Master's
- E-mail: gomes.d.n05@gmail.com
- Focus: QA · Automation · Game Dev
Skills
Experience in end-to-end test automation in Java, JavaScript and Python, with BDD/TDD/ATDD and CI/CD. Below are the main tools and technologies I use.
Selenium WebDriver 95%
Playwright 90%
Cypress 85%
Appium 80%
API Testing (Postman / Newman) 85%
Java 85%
Python 85%
JavaScript / TypeScript 80%
CI/CD (Jenkins) & Git 85%
JUnit · Cucumber · pytest 85%
Resume
Quality Engineer at Liferay for 5+ years, working on LATAM/EMEA-scale projects — from planning and running manual and automated tests to mentoring QAs. End-to-end automation with Selenium, Playwright, Cypress and Appium (Java, JavaScript, Python), aligned with BDD, TDD, ATDD and Scrum. A scientific background (MSc in Biomedical Engineering) brings a rigorous, investigative way of thinking about quality. Currently deepening functional programming and game development in personal projects.
Download resume (PDF)Profile
Diogo Gomes
Quality Engineer @ Liferay
- Recife, Pernambuco, Brazil
- gomes.d.n05@gmail.com
- linkedin.com/in/dio-gomes
Education
Systems Analysis and Development
2022 - 2024
Senac University Center
Bachelor's degree in Technology.
Master's in Bioengineering and Biomedical Engineering
2014 - 2016
Federal University of Pernambuco, PE
Development of an alginate-based temporary skin substitute incorporating Anadenanthera colubrina extract.
Bachelor's in Biological Sciences (teaching degree)
2010 - 2013
Catholic University of Pernambuco, PE
Certifications & Highlights
- JMeter — Performance testing
- Introduction to Kotlin
- Git and GitHub from basic to advanced (gist and GitHub Pages)
- Introduction to building websites with HTML5 and CSS3
- Introduction to IoT and Embedded Systems
- Patent: Polymeric film and scaffolds as an extracellular matrix substitute
Professional Experience
Quality Engineer
April 2025 - Present
Liferay, Recife, PE
- I lead quality activities on LATAM-scale projects, focusing on end-to-end automation and platform migration validation.
- Planning and execution of test plans and test cases; analysis of functional and visual regressions across environments.
- Technical mentoring of newer QA analysts on the team.
- Stack: Java, JavaScript, Python · Selenium, Playwright, Cypress, Appium, JUnit, Cucumber, pytest · Jenkins (CI), Jira · BDD/TDD/ATDD.
Software Quality Assurance Consultant III
April 2023 - April 2025
Liferay, Recife, PE
- I planned, developed and executed manual and automated test plans and test cases (front-end and cross-platform automation).
- Web automation (Selenium, Playwright/JavaScript), real devices (BrowserStack/Java), Android (Appium/Java) and APIs (Postman).
- Mentoring new QA analysts. BDD, TDD and ATDD practices in an agile (Scrum) environment.
Software Quality Assurance Engineer
February 2021 - April 2023
Liferay, Recife, PE
- Heavy use of functional test automation with Java, JavaScript and Python.
- Frameworks: Selenium, JUnit, Cucumber, pytest and Playwright, ensuring coverage from the early stages of the cycle.
- Started through a training program rotating across the Front-end, Back-end and Testing teams; automation with the proprietary Poshi framework and CI monitoring (Jenkins, Testray).
Researcher
December 2014 - December 2020
LBQ - BIONAT
- Technical lead for chemical and spectroscopic analyses of natural products and bioactives.
Teacher
2011 - 2015
Pernambuco school system
- Chemistry, Physics and Biology teacher for middle school, high school and university entrance exam prep.
Portfolio
A selection of projects, games and tutorials I've produced. Click play to watch each item's video.
- All
- App
- Games
- Web
- Automation
- Tutorials
App
Allert
Android app (Java) for natural disaster alerts · live risk map, proximity-based push (SSE) and its own REST backend
Games
PokéWorld Online
3D creature-catching MMO · authoritative server · Gigaverse3D
App · Course
learnCode: Java
Interactive terminal course · 25 chapters from Deitel · Gigaverse3D
App · Course
learnCode: Python
Interactive terminal course ·
App · Course
learnCode: Testes
Interactive terminal course · test pyramid (Vitest, Playwright) · Gigaverse3D
End-to-End Automation
Robot Framework Automation
E2E UI test suite against SauceDemo · Robot Framework 7 + SeleniumLibrary · Page Object pattern
End-to-End Automation
Cypress — E2E Automation
E2E suite organized as a learning path · 7 themed suites · custom commands and cy.intercept
Tutorials
Video tutorial
Technical content published on the YouTube channel.
Tutorials
YouTube channel
Devlogs, tutorials and behind the scenes of my projects.
Study tracks
Blogs by field and seniority level — what to understand at each stage of your career, for technical interviews and day-to-day work.
Back-end
Back-end Track
From the first HTTP request to distributed architecture: APIs, databases, scalability, CAP and resilience.
Junior → Senior
View track
Front-end
Front-end Track
Semantic HTML, CSS, JavaScript, event loop, state, performance and browser security.
Junior → Senior
View track
DevOps
DevOps Track
Linux, Git, CI/CD, containers, infrastructure as code, observability, Kubernetes and cloud.
Junior → Senior
View track
Data
Data & SQL Track
Modeling, SQL, normalization, indexes, data warehouse, ETL, NoSQL, sharding and streaming.
Junior → Senior
View track
Mobile
Mobile Track
Lifecycle, navigation, layout, state, offline-first, performance, architecture, push and publishing.
Junior → Senior
View track
Contact
Location:
Recife, PE
Email:
gomes.d.n05@gmail.com
Call:
Recife · Brasil