Mobile App Quality Control (QC) Tester - Remote (Vietnam)

About the Role We are looking for a Part-Time Mobile App Quality Control (QC) Tester based in Vietnam to support an ongoing project involving Android-based data capture technology. In this role, you will help test and validate our mobile application across different Android devices, operating system versions, and real-world usage scenarios. You will work closely with our international engineering and product teams to ensure the application performs reliably, accurately captures data, and provides a smooth user experience. This role is ideal for individuals who are detail-oriented, comfortable using Android smartphones and Windows laptops, and interested in mobile application testing. Key Responsibilities Install and configure testing software on Android devices and Windows laptops. Connect Android devices to laptops using a USB cable and execute guided testing scenarios. Perform functional testing across different Android devices and Android OS versions. Follow testing procedures provided by the engineering team to validate application functionality. Verify application behaviour, data capture accuracy, and overall system performance. Perform regression testing after bug fixes and application updates. Identify, document, and report bugs, issues, and observations in a clear and structured manner. Maintain accurate testing records and documentation. Participate in periodic review meetings with the engineering and product teams. Communicate testing findings and recommendations effectively. Technical Requirements Comfortable using Android smartphones and Windows laptops. Basic understanding of mobile applications, software installation, and basic troubleshooting. Ability to follow detailed testing procedures accurately. Comfortable installing and using testing tools with guidance from the engineering team. Strong attention to detail and analytical thinking. Ability to reproduce issues consistently and document findings clearly. Hardware Requirements Access to at least one Android smartphone (Samsung, Xiaomi, Oppo, Vivo, Realme, Google Pixel, or equivalent). Access to a Windows laptop with a stable internet connection. Ability to connect an Android device to a laptop using a USB cable. Preferred Qualifications Previous experience in Mobile App Testing, Software QA, Technical Support, Software Validation, UAT, or a related field is an advantage. Familiarity with bug reporting tools (JIRA, Azure DevOps, TestRail, Bugzilla, or similar) is preferred. Native or fluent Vietnamese communication skills. Basic to intermediate English communication skills (written and verbal) to collaborate with the international engineering team. Self-motivated, reliable, and able to work independently in a remote environment. Time Commitment Initial Setup & Intensive Testing Phase (First 3–4 Weeks) Approximately 20 hours per week Focus on application setup, device compatibility testing, validation, and issue identification. Ongoing QC & Monitoring Phase Approximately 10 hours per week Routine testing, regression testing, validation of application updates, and issue monitoring. What We're Looking For Detail-oriented and methodical. Comfortable working with technology and mobile applications. Able to work independently while following clear instructions. Reliable, responsible, and committed to meeting project timelines. Strong problem-solving and communication skills. Comfortable working remotely with an international team. Why Join Us? Fully remote freelance opportunity. Flexible part-time working arrangement. Work with an international engineering and product team. Gain hands-on experience in Android mobile application quality testing. Immediate project start with a 6-month contract .