Senior QA Engineer (Manual & Automation)

PREPARING US FOR TOMORROW'S WORLD

You specialize in building and maintaining leading-edge B2B2C solutions built on world-class technology stacks that bring our unique vertical SaaS experience to Japan, Southeast Asia, and beyond. Millions of people will be impacted by your contributions, which are demanding in design and quality but also incredibly rewarding.

Why work in Manabie:

• Growth environment with professional and highly skilled product teams.
• Be a part of the journey of a high-growth startup and contribute to the digital transformation of education.

Responsibilities:

1. Automation Framework Development & Scaling

• Design, build, and scale robust automation frameworks from scratch for web and mobile applications.
• Establish and enforce coding standards, folder structures, and reusable component libraries within the automation codebase.
• Continuously improve framework architecture to support scalability, maintainability, and cross-team adoption.

2. Test Automation Management

• Manage and maintain the full automation test suite — including creating new scripts, updating existing ones, and retiring obsolete tests.
• Develop structured automation coverage (functional, regression, smoke, sanity) aligned with release cycles.
• Analyze test results and drive test coverage improvements proactively.
• Flaky Test Stabilization
• Identify, investigate, and resolve flaky tests to ensure consistent, reliable pipeline results.
• Implement retry strategies, proper wait conditions, and environment isolation techniques to reduce false failures.
• Monitor test stability metrics and report trends to the team.

3. Git & Code Quality Management

• Manage Git branching strategies (e.g., Gitflow, trunk-based development) within the QA automation repository.
• Conduct code reviews for automation scripts — ensuring readability, reusability, and adherence to standards.
• Collaborate with developers and DevOps to integrate automation into CI/CD pipelines.

Requirements:

• Must-Have:• 5+ years of hands-on experience building and scaling automation frameworks (Playwright, Selenium, TestCafe, or equivalent).
• Proven experience in Git branching management and code review practices in a team environment.
• Strong track record of diagnosing and stabilizing flaky tests in CI/CD pipelines.
• Experience managing test cases and automation scripts across multiple product releases.
• Demonstrated ability to set goals and track progress — both individually and at team level.
• Solid understanding of SDLC, Agile practices, and CI/CD integration.
• Proficiency with API automation (Postman, Karate, or equivalent).
• Hands-on experience with SQL for data validation.
• English proficiency (Intermediate or above) — able to communicate in an international team.
• Product Mindset: Ability to understand business logic and user workflows to design high-impact, end-to-end test strategies.
• Proactive Communication & Reporting: Confident in driving technical discussions with stakeholders, resolving blockers independently, and clearly reporting test metrics and quality risks.

• Nice to Have (Highly Preferred):• Experience using AI agents or AI-assisted tools in a QA or automation context.
• ISTQB Advanced Level (Test Automation Engineer) certificate.
• Experience with performance or load testing.
• Familiarity with Salesforce or ERP system testing.

Perks:

• Probation: 2 months (100% full-time salary).
• Health Insurance package from Bao Viet.
• 13-months and Performance Bonus.
• 14 days of Paid Leave Annually.