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# QA Automation Engineer

- **Company:** Smadex SLU
- **Location:** Barcelona, Spain (Remote available)
- **Salary:** €47,000.0 - €59,000.0
- **Contract:** Permanent contract
- **Skills:** IOS Applications, Automation of Tests, Computer Networks, DevOps, Fiddler (Software), User Interface Testing, Pixel Perfect, Banner Advertisement, Adserver, Enterprise Integration
- **Published:** September 24, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

+ +4 years of experiences a QA Automation Engineer.
 + Solid background in automated UI testing for native iOS and Android.
 + Proficient in using proxy tools (Charles Proxy, Proxyman, or Fiddler) to intercept and validate network traffic and event firing.
 + Experience with mobile CI/CD pipelines and distributing builds.
 + A "pixel-perfect" mindset to catch rendering glitches or UI inconsistencies that could impact ad performance.
 + Ability to identify which high-impact UI flows require automation versus manual exploratory testing.
Bonus Points

 + Exposure to MRAID, VAST, or the OM SDK (Open Measurement).
 + Experience testing libraries designed for third-party integration.
 + Familiarity with measuring an SDK's impact on device memory or battery life.
What's in it for you

 + Integrate a highly motivated and young team

## Description

We are looking for a QA Automation Engineer to help us scale our proprietary, Native Ad-Serving SDK (iOS & Android) from a successful prototype to a global commercial rollout. Your mission will be to ensure our rendering and tracking standards remain world-class as we integrate with a diverse range of global publishers. This role focuses on the final validation layer, ensuring our SDK delivers a flawless experience within any host application.
This is a full-time hybrid position in Barcelona.
The Opportunity

 + Collaborate with developers and DevOps to define the "Release Ready" criteria for new versions of the native SDK.
 + Build and maintain automated UI tests to ensure ad formats (banners, interstitials, video) render perfectly across all screen sizes and OS versions.
 + Verify that the full "request-to-render-to-click" flow works as expected, ensuring 100% accuracy in our tracking and attribution signals.
 + Manage and expand our internal testing apps to simulate different publisher environments and edge cases.
 + Oversee the performance of our internal testing apps distributed at strategic locations worldwide to ensure consistency across different network conditions., + Top location at the heart of Barcelona with a rooftop terrace, Barbeque, and a fully stocked fridge
 + Great work-life balance: work from home (2 days per week), flexible hours
 + LinkedIn Learning and training opportunities
 + Meal vouchers - Ticket Restaurant monthly allowance
 + Monthly gym allowance: Choose between DiR Gym and Wellhub
 + Monthly TGIF events
 + Regular team-building events
 + Fun and friendly work environment with talented marketers and engineers from over 40 countries
 + And more!
If you want to know more about us visit our website Smadex.com, and for a sneak peek of the cool stuff we build check this video out!
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