QA and Observability Engineer - Mobile & Web (w/m/x/d)

About the role

As a QA Automation Engineer for Mobile & Web, you'll play a key role in ensuring the quality, reliability, and performance of our products - from test design through to end-to-end production monitoring. You'll build automation, own application performance management, and work closely with our development and product teams to catch issues before they reach our users and keep production running smoothly.

What you'll do

• Build, maintain, and evolve automated and manual test suites for mobile (iOS/Android) and web applications, as well as APIs
• Perform API testing and validation of backend services using tools such as Postman, REST Assured, or similar
• Conduct performance and load testing to identify system bottlenecks using JMeter, k6, or comparable tools
• Own end-to-end production monitoring and performance visibility
• Document, track, and prioritize defects, working closely with developers to reproduce, debug, and resolve issues
• Contribute to test plans, quality metrics, and release readiness assessments
• Collaborate with product, backend, and platform teams to improve testability and observability
• Work with AI-powered development and testing tools to improve efficiency and signal quality

What you'll need

• 3–5 years of experience in software testing, QA automation, site reliability, or a closely related role
• Proficiency in JavaScript/TypeScript and Python
• Solid experience with manual and exploratory testing across mobile and web platforms
• Hands-on experience with test automation frameworks such as Selenium, Appium, or Cypress
• Experience with API testing using tools like Postman or REST Assured
• Familiarity with performance and load testing using tools such as JMeter or k6
• Hands-on experience with monitoring and observability tools such as Grafana and Prometheus
• Experience working with time-series databases (e.g. InfluxDB)

Nice to have

• Experience with CI/CD pipelines (Jenkins, GitHub Actions)
• Familiarity with version control using Git / GitHub / GitLab
• Knowledge of accessibility and usability testing standards
• Valid driver's license

What they offer

• Choose between monthly MILES credits or the Deutschlandticket
• Subsidized Urban Sports Club membership
• Access 1,500+ providers for discounts
• Flexibility of working from office in Berlin and from home
• Attractive pension plan
• Personal development through knowledge sharing and training opportunities