[Hiring] Principal QA Engineer @BTSE

Role Description

As Principal QA Engineer, you will own automated and performance testing for your product area(s) and set the technical standard for testing across them. You will develop test automation, design and execute stress and performance tests against high-volume trading systems, and apply AI tools to improve the speed and depth of testing, working with engineering, product, and DevOps to ensure that every release performs reliably.

Responsibilities

• Own the testing lifecycle for new features and changes, including scoping, risk assessment, test depth, and release readiness.
• Build and maintain automated tests covering API, UI, integration, and regression, and reduce flaky tests.
• Design and run load, stress, and performance tests on high-risk areas (order flow, matching and settlement, balances, deposits/withdrawals), analyze results, and report bottlenecks to engineering.
• Use AI tools to speed up test generation, analysis, and triage, and share what works with the team.
• Integrate automated tests into CI/CD pipelines with reliable quality gates.
• Lead testing on complex or high-severity changes and make release sign-off recommendations.
• Own the test automation architecture (frameworks, test data, environments) in line with QA standards set by the Director.
• Mentor QA engineers through code reviews and pairing.
• Report quality metrics (defect escape rate, critical-path coverage, release stability) to the Director and stakeholders, and raise quality and release risks early, backed by data.

Qualifications

• 7+ years in software QA/test engineering with a strong automation focus.
• Must be fluent in Mandarin.
• Hands-on automation experience in Python, JavaScript/TypeScript, or Java, including designing or substantially owning a framework.
• Hands-on performance/load testing experience (e.g., k6, JMeter, Locust, Gatling).
• Experience testing APIs and backend/distributed systems.
• Experience with CI/CD (e.g., GitLab CI, Jenkins, GitHub Actions) in an agile environment.
• Ability to learn complex transactional or financial logic quickly, and clear communication with engineers and product.
• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.

Nice to have

• Experience in crypto, trading, exchange, payments, or other financial systems.
• Experience testing wallet/custody or blockchain integrations.
• Practical experience using AI/LLM tools in testing.