mobile application tester

Mobile Application Tester – Job Description About the Role Department: Technology Location: Pakistan/Egypt Employment Type: Full-Time Reports To: QA Lead We are looking for a detail-oriented and experienced Mobile Application Tester to join our QA team. You will be responsible for ensuring the quality, performance, and reliability of our mobile applications (iOS & Android) with a strong focus on API testing and end-to-end integration testing. You will work closely with developers, product managers, and backend engineers to deliver seamless user experience. Key Responsibilities Mobile Application Testing • Design, develop, and execute manual and automated test cases for iOS and Android applications • Perform functional, regression, smoke, sanity, and exploratory testing on mobile builds • Test across multiple devices, OS versions, and screen resolutions • Validate UI/UX against design specifications and product requirements • Conduct performance, load, and stress testing on mobile apps • Test push notifications, deep links, background processes, and offline behavior • Verify app behavior across network conditions (2G, 3G, 4G, 5G, Wi-Fi, no connectivity) API Testing • Design and execute REST API test cases using tools like Postman • Validate API request/response structures, status codes, headers, and payloads • Perform positive, negative, and boundary testing on all API endpoints • Verify authentication mechanisms (JWT, OAuth 2.0, API keys) • Test rate limiting, throttling, and error handling behaviour • Maintain and manage Postman collections scripts for automated API test suites • Validate data contracts and schema consistency between API versions Integration Testing • Execute end-to-end integration tests between mobile app, backend APIs, and third-party services • Validate data flow and communication between microservices • Test payment gateway integrations, third-party SDKs, and external service APIs • Verify webhook behaviors, callbacks, and event-driven flows • Ensure consistency between app behavior and backend data (database validation) • Collaborate with backend teams to trace and debug integration failures Test Management & Reporting • Write detailed bug reports with clear reproduction steps, screenshots, and logs • Maintain test plans, test cases, and traceability matrices in tools like YouTrack. • Track, prioritize, and follow up on defects through to resolution • Participate in sprint planning, daily standups, and retrospectives (Agile/Scrum) • Generate and share QA reports with stakeholders Required Skills & Qualifications Must-Have • 3–5 years of experience in mobile application testing (iOS & Android) • Hands-on experience with API testing tools: Postman. • Strong knowledge of RESTful APIs, HTTP methods, and JSON/XML • Experience with mobile testing tools: Xcode simulator, Android Studio emulator, real devices • Familiarity with Fiddler for network traffic interception and debugging • Understanding of authentication flows: OAuth, JWT, session tokens • Experience with bug tracking tools: Jira, YouTrack, or similar • Ability to read and interpret API documentation (Swagger/OpenAPI) • Knowledge of the SDLC and Agile/Scrum methodology • Strong analytical and problem-solving skills with high attention to detail Nice-to-Have • Experience with mobile test automation frameworks: Appium • Knowledge of CI/CD pipelines and integrating tests with Jenkins, GitHub Actions • Experience with performance testing tools: JMeter • Familiarity with SQL for backend data validation • Experience testing financial, fintech, or data-heavy applications • Understanding of WebSocket or real-time data testing • Scripting knowledge in Python, JavaScript, or Bash for test automation Tools & Technologies • CategoryTools • API Testing • Postman • Mobile Testing • Xcode, Android Studio, BrowserStack, Sauce Labs • Network Debugging • Fiddler • Test Management • YouTrack / Jira • Automation (Preferred) • Appium • CI/CD • Jenkins, GitHub Actions • Version Control • Git / GitHub • Education & Certifications • ISTQB / CTFL certification is a plus