Mark Cordero · QA

About

Mark Joseph Cordero

QA Engineer / Test Analyst

Results-driven QA Engineer with a passion for building confidence in software quality. I enjoy designing test strategies, uncovering edge cases, and partnering with teams to deliver reliable, user-centered products.

My focus is on clear communication, thoughtful test coverage, and making sure we understand both the business goals and the real user experience behind every feature.

PlaywrightWeb, API & Mobile TestingAgile / Scrum

Open to QA / Test Engineer roles

Get in touch

Profile

Mark Joseph Cordero

Melbourne, VIC • 5+ years in QA • Automation & manual testing

Skills

How I approach testing

I combine structured test design with curiosity and a strong focus on communication. Here are the areas where I bring the most value.

Core QA skills

Test Planning & Strategy
Test Case Design
Exploratory Testing
Regression Testing
Defect Management
Risk-based Testing

Tools & technologies

Jira / AWS / Azure DevOps
Zephyr
Postman / REST API Testing
Playwright
Cypress
Git / GitHub / GitLab
Appium
Burp Suite

Ways of working

Agile / Scrum
CI/CD Awareness
Requirements Analysis
Root Cause Analysis
Cross-browser Testing
Mobile / Responsive Testing

Certifications

Certifications & training

Formal training that underpins my hands-on testing experience.

ISTQB Certified Tester – Foundation Level (CTFL)
ISTQB / ASTQB • 2025
Covers fundamental testing principles, test design techniques, test management, and tool support.
LambdaTest Playwright 101
TestMu AI formerly LambdaTest • 2024
Playwright automation fundamentals and best practices for cross-browser testing.
Appium Mobile Automation – Android & iOS + CI/CD
Udemy • 2024
Mobile test automation with Appium and CI/CD integration.
Cypress UI & API Automation
Udemy • 2021
Cypress for UI and API test automation.

Experience

Where I've added value

Automation Test AnalystFreight Cyber Pty. Ltd.Feb 2025 – Apr 2025

Implemented automation solutions using Playwright, improving test coverage and reducing manual effort. Southbank, Melbourne, VIC, AU.

Built and executed automated UI and API test suites to accelerate regression testing.
Designed CI/CD pipelines with GitHub Actions for daily automated test runs.
Performed manual functional testing for the web and mobile application.
Created test cases, managed defects, and collaborated with developers for issue resolution.
Conducted Playwright training to upskill QA team members.

Agile Test EngineerTwistResources, Inc.Oct 2021 – Oct 2024

Served as sub-test lead, coordinating test activities for multiple QA team members. Pampanga, PH.

Collaborated closely with cross-functional teams and Product Owners to maintain release quality.
Participated in Agile Scrum ceremonies and refinement sessions.
Performed API testing, security testing using Burp Suite, performance testing, and functional testing.
Automated test scripts using Cypress and Playwright.
Identified requirement gaps and proposed improvements during refinement sessions.

Quality Assurance AnalystHabitap Pte. Ltd.Mar 2021 – Sep 2021

Created and maintained automated web and mobile test scripts. Ortigas Center, Pasig City, PH.

Created and maintained automated web and mobile test scripts using TestProject.
Executed manual and automated regression testing.
Coordinated with offshore developers to ensure smooth release cycles.
Authored detailed test cases and scenarios.

Quality Assurance AnalystGoDigital CorporationJan 2020 – Dec 2020

Developed test plans and maintained test cases for functional and regression testing. Quezon City, PH.

Developed test plans, functional, regression, and end-to-end test cases.
Provided daily testing reports and maintained test cases.
Logged defects in Jira and worked with Test Leads to maintain test environments.

Projects

Selected QA projects

A few examples of where I focused on building confidence in critical user journeys, payment flows, and complex business logic.

Payment Platform Web App

Lead QA Engineer

Led testing for a responsive payment platform handling high transaction volumes and multiple payment providers.

End-to-end testing of payment flows, refunds, chargebacks, and error handling.
API testing for integrations with external payment gateways.
Regression suites covering cross-browser and responsive layouts.

WebREST APIsPostmanSeleniumJira

Customer Self-Service Portal

QA Engineer

Tested a portal that allowed customers to manage their accounts, requests, and support tickets.

User journey validation from sign-up to complex account operations.
Data validation across UI, API, and database layers.
Accessibility checks and responsive design verification.

WebCypressAzure DevOpsTestRail

Mobile-first Booking Experience

QA Analyst

Validated a mobile-first booking flow with complex pricing, discounts, and availability rules.

Scenario-based and exploratory testing around edge cases and date logic.
Cross-device testing on real devices and emulators.
Collaborated closely with designers to ensure UI consistency.

Mobile WebResponsive TestingBrowserStackConfluence

Hobbies

Photography

Outside of testing, I love exploring the world through a camera. It teaches me to pay attention to details, patterns, and composition — the same skills that help me spot issues and edge cases in software.