Functional Testing QA Engineer

EPAM Systems; Mexico; On-site; PHP 420,000 - 660,000; Full time

Job summary

EPAM Systems is seeking a detail-oriented QA Engineer to safeguard product quality across the delivery lifecycle. You will plan tests, report defects, and support releases to deliver a polished user experience.

You will work with developers, product managers, and analysts in Agile teams, performing manual functional testing on web and mobile apps, and executing system integration tests to ensure reliable cross-component behavior.

Qualifications

• 2+ years QA engineering experience in Agile teams.
• System integration testing experience in web and mobile applications.
• Test planning experience for structured test plans and test cases.
• Strong knowledge of functional, regression, integration, and smoke testing.
• Solid understanding of QA methodologies including black-box, white-box, and boundary testing.
• Strong analytical skills and end-user mindset for defect discovery.
• Clear written communication skills for reproducible bug reports and documentation.
• Upper-Intermediate English proficiency (B2).

Responsibilities

• Analyze requirements and designs to define test scope.
• Create structured test plans and detailed test cases.
• Execute manual functional testing across web and mobile apps.
• Perform system integration testing to validate cross-component behavior.
• Run regression and smoke tests to protect critical flows.
• Document and prioritize defects with clear reproduction steps.
• Collaborate with developers to reproduce issues, verify fixes, and identify root causes.
• Participate in sprint ceremonies to ensure testable acceptance criteria.
• Support UAT by coordinating verification with business stakeholders.
• Validate releases via production smoke checks during deployments.

Skills

QA Testing

Agile

Functional Testing

System Integration

Regression Testing

Bug Reporting

White-box Testing

Black-box Testing

Boundary Testing

End-user mindset

Tools

Jira

TestRail

Zephyr

Confluence

Job description

We are seeking a detail‑oriented QA Engineer to safeguard product quality through functional and system integration testing across the delivery lifecycle. You will partner with developers, product managers, and analysts to plan tests, report defects, and support releases—help deliver a polished user experience.

Responsibilities

• Analyze requirements and technical designs to define test scope
• Create structured test plans and detailed test cases
• Execute manual functional testing across web and mobile applications
• Perform system integration testing to validate cross‑component behavior
• Run regression and smoke test suites to protect critical flows
• Document and prioritize defects with clear reproduction steps
• Collaborate with developers to reproduce issues, verify fixes, and confirm root causes
• Participate in sprint ceremonies to ensure acceptance criteria are testable
• Support UAT by coordinating verification with business stakeholders
• Validate releases via production smoke checks during deployment cycles

Requirements

• 2+ years QA engineering experience in Agile teams
• System integration testing experience in web and mobile applications
• Test planning experience for structured test plans and test cases
• Strong knowledge of functional, regression, integration, and smoke testing
• Solid understanding of QA methodologies including black‑box, white‑box, and boundary testing
• Strong analytical skills and end‑user mindset for defect discovery
• Clear written communication skills for reproducible bug reports and documentation
• Upper-Intermediate English proficiency (B2)

Nice to have

• Experience with Jira, TestRail, Zephyr, or Confluence