Role Summary

We are looking for a detail-oriented QA Engineer, responsible for ensuring the quality, reliability, and performance of our core communication features across Android and iOS platforms. In this role, you will test critical in-app modules including Instant Messaging, VoIP calling, Ads, and Wallet services, ensuring a seamless real-time communication experience for millions of users.

You will work closely with Product Managers and Engineers to validate end-to-end user journeys, combining mobile UI testing with backend API and protocol-level validations. The role involves regression, exploratory, and compatibility testing across devices and OS versions, with opportunities to contribute to mobile UI automation. This position is ideal for a QA Engineer who thrives in fast-paced, Agile environments and is passionate about delivering high-quality, communication-centric mobile applications.

Responsibilities

• Conduct comprehensive functional and compatibility testing of mobile applications across Android and iOS platforms.

• Perform detailed validation of in-app modules such as Instant Messaging (IM), Ads, VoIP calling, and Wallet services.

• Collaborate with developers and product managers to analyze requirements, identify test scenarios, and ensure timely, high-quality releases.

• Execute end-to-end testing, including backend API validations and frontend UI interactions.

• Participate in regression, smoke, and exploratory testing for new features and major app releases.

• Validate communication protocols such as TCP to ensure messaging and calling reliability.

• Contribute to the development and maintenance of mobile UI automation scripts (preferred).

• Report bugs with detailed reproduction steps and work closely with the development team to track resolution.

• Actively contribute to the continuous improvement of testing processes and tools.

Requirements

• Bachelor's degree or higher in computer science or a related field.

• Hands-on experience in mobile app testing (Android & iOS), especially for IM, Ads, or communication-focused applications.

• Familiarity with telecom protocols such as TCP and real-time communication workflows.

• Basic understanding of backend API testing and tools like Postman, Charles Proxy, or Wireshark.

• Prior exposure to mobile compatibility testing across various devices and OS versions.

• Experience in UI test automation using frameworks like Appium or Robot Framework is a plus.

• Strong analytical mindset, attention to detail, and a proactive approach to quality assurance.

• Ability to communicate effectively in English and collaborate across product and engineering teams.