Manual Tester (f/m/d)

adjoe is a leading mobile ad platform developing cutting-edge advertising and monetization solutions that take its app partners’ business to the next level. Part of the applike group ecosystem, adjoe is home to an advanced tech stack, powerful financial backing from Bertelsmann, and a highly motivated workforce to be reckoned with.

Meet Your Team: Core & Integrations Team (part of the Demand Solutions team)

The Demand Solutions department builds the core technologies to help mobile publishers acquire the right users for their apps and games. The team is proud that adjoe’s software – developed 100 percent in-house – manages, provides, and analyzes advertisements for more than 200 million daily mobile users.

adjoe’s Demand Solutions department builds modern user interfaces and software and powers its analytics in the dashboard with state-of-the-art databases like Druid. All to give advertisers and account managers the insights they need. The team provides statistical data via a dashboard in order to supply our partners with valuable insights. For this we leverage machine learning models built by our BI analysts and data scientists.

Besides delivering high standards, Demand Solutions remains flexible and autonomous from adjoe’s other tech teams. To develop new platform features fast, this versatile team works on adjoe’s Go backend, which feeds data to the TypeScript React frontend.

As part of the Demand Solutions team, the Core & Integrations team is responsible for core logic of our advertising platform: campaign distribution to find the best combination of advertising campaigns for end users, campaign management API to optimize existing advertising campaigns and some other smaller API products.

The Core & Integrationsteam also handles integrations with our external partners like our attribution partners – MMPs (Appsflyer, Adjust, etc.) or aggregators working with the advertisers using our platform.

What You Will Do:

• You will work in a cross-functional team to achieve the highest level of quality across the software development lifecycle.
• You will conduct manual tests of our product and analyze results to ensure the correct implementation of its features and experiments.
• You will play a key role in reporting, troubleshooting, and retesting any bugs or errors that may occur.
• You will take ownership of post-release and post-implementation testing. 
• You will be part of an international English-speaking team dedicated to scaling our adtech platform beyond our hundreds of millions of monthly active users.

Who You Are:

• You have a degree in information technology, economics, analytics, or a similar field.
• You have 3+ years of experience as a Quality Assurance Engineer with a focus on manual testing.
• You have experience in testing complicated backend systems with multiple services: you have worked with such technologies as container orchestration systems (e.g. Kubernetes, Docker), databases (e.g. MySQL, Redis, DynamoDB), or messaging systems (e.g. SQS, Kafka or similar).
• You have experience in working closely with engineers (investigating how the system works and discussing feature requirements).
• You are experienced in QA methodology, and familiar with Agile frameworks and regression/smoke/LIT testing.
• You are able to document and troubleshoot errors as well as prepare, document, and maintain test cases.
• You have excellent communication & organizational skills and pay attention to details.
• You have an analytical mind and problem-solving attitude.
• Plus: you have hands-on experience with Automation Testing Tools (e.g. RestAssured, Appium, Selenium, or Playwright).

Fuel for the Journey: Benefits to Support Your Ambitions

• Invest in Your Future: Regular feedback and our development program support your growth, helping you expand your skill set and achieve your career goals.
• Easy Arrival to adjoe: From signing to settling in Hamburg, we’ve got you covered. Need a visa? No problem. Ready to build your new life and career at (company name) in Hamburg? We support every ambition—from learning German to a relocation bonus that helps you settle in and make Hamburg feel like home.
• Live Your Best Life, at Work and Beyond: We work in a hybrid setup with 3 core office days, plus flexible working hours. Enjoy 30 vacation days, 3 weeks of remote work per year, and free access to an in-house gym with lots of different fitness classes and mental health support through our Employee Assistance Program (EAP).
• Thrive Where You Work: Enjoy the Alster Lake view from our central office with top-notch equipment, fun open spaces, and a large variety of snacks and drinks.
• Join the Community! Participate in regular team and company events, including hackathons and social gatherings. We work together, and we celebrate together, too.

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.