QA Engineer (Mobile SDK & AdTech Integration)

About AscendX

AscendX is building a next-generation monetization infrastructure for mobile game and app publishers. Our customized SDKs (Android, iOS, Unity) are critical to publisher workflows and revenue. We are looking for a QA Engineer specialized in Mobile SDK testing with adtech knowledge to ensure SDK stability and reliability at scale.

Key Responsibilities

• Own QA process for AscendX SDKs (Android, iOS, Unity).
• Validate SDK functionality across devices, OS versions, and integration environments.
• Test ad request/response flows, bidding mechanics, and mediation integration.
• Develop automation frameworks for SDK and integration testing.
• Build regression test suites and integrate with CI/CD pipelines.
• Collaborate with SDK engineers, backend engineers, and product managers on release readiness.

Requirements

• 1-2 years of experience in QA for mobile apps or SDKs.
• Strong knowledge of mobile QA frameworks and automation tools (Appium, Espresso, XCTest, Unity Test Runner).
• Solid debugging skills using network sniffers (Charles, Fiddler), adb, Xcode Instruments.
• Understanding of client–server communication and APIs.
• Strong written and verbal communication skills in English.

Nice to have (can be learned on the job)

• Experience testing SDKs (not just apps).
• Exposure to adtech/monetization SDKs (AdMob, AppLovin,