QA Engineer Chat IM And VoIP

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.
  
  

• Bachelors 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.