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Charles Francis Reserva

@charlesfrancisreserv

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Senior QA specialist delivering high-quality web and mobile releases.

Philippines

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What I'm looking for

I seek a QA role where I can lead testing efforts, mentor teammates, advance automation, and improve release quality within an Agile product team.

I am a results-driven Senior QA specialist with nine years of experience in manual and automated testing for web and mobile platforms, skilled in delivering high-quality releases with strong defect detection and prevention metrics. I have led and mentored QA teams, coordinated cross-functionally with developers, product managers, and stakeholders, and improved release quality through structured test case design, triage, and automation using tools like Appium, Playwright, and LambdaTest.

I consistently reduced production defects and customer-reported issues through rigorous regression, UAT, SAT, and exploratory testing, and by championing QA best practices and process improvements. I bring experience working in Agile/Scrum environments, managing test artifacts in Testmo and JIRA, and communicating release readiness directly to executives and international development teams.

Experience

Work history, roles, and key accomplishments

Senior QA Specialist

ParaXpress Technology Services Inc.

Aug 2024 - Jan 2026 (1 year 5 months)

Sub-led QA team, mentoring one junior QA and designing manual tests for Android/iOS that achieved a 95% defect detection rate and reduced critical production defects by 30%. Ran Agile ceremonies and coordinated with remote development and stakeholders to ensure release quality.

Manual Testing Defect Triage Appium Playwright LambdaTest Agile Scrum

Senior QA Engineer

MetroMart Technologies Inc.

Mar 2020 - Aug 2024 (4 years 5 months)

Managed QA for iOS with 1M+ users, reducing customer-reported issues by 40% YoY and improving regression efficiency by 50% through Appium/Playwright automation and LambdaTest integration. Maintained 100% traceability in Testmo and improved team productivity by 20%.

IOS Testing Test Automation Appium Playwright LambdaTest Regression Testing

Quality Analyst

Cignal TV

Mar 2018 - Dec 2019 (1 year 9 months)

Performed end-to-end testing for Cignal Account Portal, MVP Rewards, and Cignal Play app, validating billing and subscriber flows for 100K+ users and achieving 95% defect detection through SAT, UAT, and PPT execution.

Functional Testing UAT Playwright Billing Exploratory testing

QA Analyst

BancNet Inc.

Oct 2016 - Apr 2017 (6 months)

Prepared and executed test scripts for EMV systems, ensuring banking compliance and reducing time-to-resolution of defects by 20% through proactive monitoring and escalation.

Compliance Testing Root Cause Analysis

Customer Service Officer

Thinkspace Inc.

Feb 2014 - Aug 2016 (2 years 6 months)

Provided IT account support and back-office services, processing customer requests with 98% accuracy and meeting SLA deadlines for data entry and report generation.

Customer Support Data Entry SLA Management Client Communication