QA Engineer at Knorex — Ho Chi Minh City, Vietnam

About The Role

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.
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, FAN, MoPub, etc.).
Familiarity with OpenRTB flows or programmatic advertising.
Experience with Unity SDK QA.
Knowledge of CI/CD and automated regression testing at scale.
Attractive salary and performance bonus scheme
13th month salary
W3F fund for learning and personal development
Comprehensive Health Insurance Coverage.
Macbook provided
Ample opportunities to grow. You get to propose your own ideas and see it through.
Work with passionate, talented and driven colleagues who get things done!
Opportunity to work cross-country and with variety of projects of different nature.
Challenging and exciting problems that await you to solve.