Principal QA QC Engineer Manual Automation Test, AI

Job Description

We are looking for a QA/QC Engineer to ensure the quality and reliability of our AI-driven platform and applications. The ideal candidate has strong analytical skills, practical experience with both manual and automated testing, and thrives in cross-functional teams. You'll collaborate closely with backend, frontend, and AI engineers to build products that serve millions of users with confidence and consistency.

Responsibilities

• Support evaluation and validation of AI-generated outputs (e.g., LLMs), including prompt testing, edge case exploration, and consistency checking
• Work with AI and product teams to define metrics for subjective quality (e.g., helpfulness, accuracy, coherence) and build repeatable QA processes for them
• Analyze product requirements, clarify ambiguities, and provide test impact assessments
• Design comprehensive test cases based on deep understanding of business logic and technical architecture
• Execute test activities across the development lifecycle, including exploratory, functional, regression, and integration testing
• Create and maintain automated test scripts for web and API testing
• Collaborate with developers and product owners as part of an agile team to ensure high product quality
• Identify, track, and report defects clearly and systematically
• Continuously improve test coverage, testing practices, and QA processes
• Mentor junior QA engineers and contribute to knowledge sharing across teams

Technical

Must have

• 5+ years of experience in software testing for web and/or mobile applications
• Solid understanding of QA methodologies, testing types, and best practices
• Hands-on experience with:
  • Programming or scripting languages (Python is priority, however open for other programming languages, e.g.JavaScript, Shell...)
  • Writing and executing test cases
  • Automation testing using tools or frameworks (e.g., Selenium, Playwright, Cypress, etc.)
  • API testing using Postman or similar tools
  • Issue and test case management tools (e.g., Jira, TestRail, Zephyr)
• Familiarity with CI/CD pipelines and how QA fits into the release process
• Ability to read and analyze logs, API responses, and basic frontend/backend code for debugging
• Experience in evaluating or testing AI/ML-based systems, including LLM outputs, hallucination detection, or user feedback loops

Nice to have

• Familiarity with prompt engineering, output evaluation techniques (e.g., rubric-based scoring), or A/B testing for AI features
• Experience working in cross-functional teams with developers, designers, and product managers
• Exposure to performance, security, or accessibility testing
• Familiarity with cloud-based environments (e.g., AWS)
• ISTQB or equivalent software testing certification

Communication

• Proactive communicator with strong collaboration skills
• Experience mentoring junior team members or leading testing initiatives
• Strong ownership and commitment to quality
• Business-level English (speaking, listening, reading and writing)

Our benefits:

Caring Mental & Physical Recreation:

• Hybrid working: 2 days at the office and 3 days WFH
• Working hour: Flexible start 8AM-9AM from Mon-Fri
• Full salary in probation
• Insurance: Applied from Probation period:
  • Social Insurance, Health Insurance, Unemployment Insurance (on 100% salary)
  • Private health insurance & accident insurance. From Managing level: extra for family members
• Bonus: 13th month salary
• 16 - 24 paid days off and more
• Paternity leave: Extra 5 days
• Annual company trip; Quarterly team building
• Billiards & Running club
• Annual health check
• Well-equipped facility: Macbook pro, additional monitor,..

Caring Career & Development:

• Clear Career path
• Foreign language & International technology-related certifications sponsoring
• External & internal training courses
• Soft-skill workshops
• Tech seminars
• Monthly and biannual Recognition Awards
• Performance & salary review: twice/year (Jun & Dec)