# QA Engineer (Mobile SDK & AdTech Integration)

> KNOREX · Ho Chi Minh City, Vietnam (Hybrid) · Full-time · Posted 2026-06-09

**Workplace:** hybrid

## Description

### 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, 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.

## Benefits

-   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.

## Apply

[Apply at KNOREX](https://apply.workable.com/knorex/j/BC126DE519/apply)

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