Senior QA Engineer (Manual & Automation) - AdTech Platform

adjoe builds the technologies behind mobile apps growth and monetization. With our core product Playtime Arcade, we've become the global leader in rewarded advertising, an ad unit built on a simple premise: users earn real in-app rewards for engaging with new apps. The result is one of the most effective value exchanges in adtech, connecting advertisers and publishers with over 770 million users annually.

Providing Configurations to Orchestrate 50M+ daily events across 100+ microservices

The Dashboards team is responsible for the systems and interfaces that define our partners' daily operations. We build the campaign management APIs, analytics engines, and high-throughput tools that allow advertisers and publishers to configure, monitor, and optimize their activity on our platform.

Managing this system isn't just about UI workflows, it’s about maintaining the configuration layer that is responsible for the behavior of our entire ad engine. Every modification in our tooling from campaign parameters and publisher settings to promotion logic and billing cycles, triggers changes across 100+ downstream microservices in real-time. We use Go, Kafka, SQS/SNS, and MySQL to build the high-throughput backend APIs, and TypeScript and React on the frontend to translate partner configurations into actions. Our configurations drive the experience for 770 million annual users, requiring high precision across our entire ad stack.

Your Mission & Who We Are Looking For:

• 3+ years in QA with a strong manual testing foundation. You design and execute structured and exploratory test cases, validate complex user journeys across frontend and backend, and perform regression testing before releases. You identify edge cases and risk areas early and document clear, reproducible bug reports in Jira.

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• API and data testing is part of your toolkit. You test APIs and data-driven dashboard features, and have basic SQL knowledge for backend data validation. You understand what correct looks like at the data layer, not just the UI.
• Automation is a growing part of your work. You contribute to UI and API test automation using tools like Playwright, Cypress, or Postman, identify critical regression flows worth automating, and maintain existing test suites. CI/CD integration experience is a plus.
• Quality ownership from day one. You participate in refinement and sprint planning from a QA perspective, help define acceptance criteria and test strategies, and proactively flag quality risks before they reach release.
• Plus: Experience in SaaS, AdTech, or performance marketing environments.
  
  

🌎 We welcome applications from talent worldwide and provide relocation support to Hamburg, Germany for those ready to join our team.

What’s in It for You?

• At adjoe, you’re not here to just close JIRA tickets, you’re helping build the infrastructure behind one of the most impactful platforms in adtech. The systems you work on will reach hundreds of millions of users and power billions of decisions every day.
• Go Big. Own projects with impact on 770M users and push adtech boundaries.
• Move Fast. Ship solutions multiple times a day, learn from results, and keep momentum.
• Be Direct. Solve problems openly and collaborate across teams.

Interested in relocating to Germany? Check out our comprehensive Relocation Jobs in Germany page with detailed relocation packages and benefits.

• Thrive Together. Grow with a diverse, global team of people from over 40 different countries that learn from each other.
• Have Fun. Celebrate wins, enjoy daily victories, and bring your energy.
  

Skip writing cover letters. Tell us about your most passionate personal project, your desired salary and your earliest possible start date. We are looking forward to your application!

We welcome applications from people who will contribute to the diversity of our company.