Role Overview
Responsible for end-to-end quality assurance across Web and App (mobile) surfaces — combining automated and exploratory testing to ensure product stability, compatibility, and interaction experience from the user's perspective. The core requirement is cross-platform testing capability (Web + App), with the ability to design and maintain an automated testing system and to think deeply about troubleshooting and user-experience-oriented quality.
In one sentence: This role is the quality gatekeeper for Web/App products — someone who can write automation scripts, test interaction experiences, investigate data issues, and use engineering methods to replace manual testing with systematic automated quality coverage. Not a manual tester — a QA engineer with real coding ability.
Key Responsibilities
Design and maintain comprehensive Web/App test cases and test plans covering functionality, compatibility, and interaction
Develop and maintain UI/API automated tests using Java, Python, or JavaScript to ensure high coverage and reliability
Combine automation and manual exploratory testing to validate user scenarios and discover potential experience issues
Perform root cause analysis on test failures and production issues, and drive fixes to closure
Identify blind spots in test coverage and continuously improve automation effectiveness
Participate in testing for new features — define expected behaviors, system impact, and risk points from a user-experience perspective
Conduct App compatibility testing across devices, OS versions, and screen sizes, as well as Web cross-browser and cross-resolution testing
Participate in performance testing (page load time, App cold start / warm start, etc.) and ensure stability under high-concurrency and weak-network scenarios
Requirements
Strong coding ability in at least one of Java, Python, or JavaScript (live coding assessment required)
Extensive Web/App automation testing experience with tools such as Selenium, Appium, Playwright, etc.
Solid understanding of Web/App testing methodologies and automation framework design
Proficiency in SQL for data validation and issue troubleshooting
Proven root cause analysis ability to solve complex quality problems
Familiarity with Web front-end technologies (HTML/CSS/JS) and mobile platform fundamentals (Android/iOS architecture and characteristics)
Experience building testing tools, platforms, or quality infrastructure
Ideal Candidate Profile
Background:
1–5 years of QA or test development experience, including at least 1 year of Web or App automation testing
Strong coding skills — able to write code from scratch, not just scripts
Proficient in SQL for independent data validation and troubleshooting
Hands-on mobile or Web testing experience
Core Competencies:
Automation capability: Can design and develop automation frameworks, not just use existing tools
Root cause analysis: Can trace test failures or production issues back to their root cause
SQL & data validation: Can write complex SQL to verify data consistency and troubleshoot data-related bugs
Cross-platform understanding: Understands Web/App architecture, including front-end/back-end interaction, network requests, cache mechanisms, and WebView
UX sensitivity: Can identify experience issues from the user's perspective, not just whether functionality works
Test tooling: Experience building test platforms, tools, or quality infrastructure
Collaboration drive: Can push developers to fix issues rather than passively waiting
Soft Skills:
Rigorous and detail-oriented
"Destructive thinking" mindset — adept at finding system weaknesses
Strong communication — bridges developers and product managers
Quality ownership mentality — treats quality as personal responsibility
Bonus Points
Payment, transaction, or financial system QA experience
AI tooling usage experience
Crypto / Web3 industry background
Hands-on App compatibility testing experience using cloud device platforms such as Testin or WeTest
Weak-network testing experience using tools such as Charles or Fiddler
