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Senior Quality Assurance Engineer - Campaign Engine (all genders)

Berlin OnsiteMid-Senior LevelFull-timePosted todayNo German requiredJavaScriptPHPReactTypeScript
Job description
  • Build testing tools, configurations, and mock layers that enable engineers to write and maintain their own reliable tests
  • Design, implement, and maintain scalable automated test suites (E2E, integration, UI) to catch regressions before they hit production
  • Apply exploratory manual testing to new features, using those insights to iteratively expand our automated test suites
  • Collaborate with product managers and engineers to refine acceptance criteria, reproduce complex bugs, and manage the bug life cycle
  • Maintain codebase consistency and feature velocity while transitioning from a single engineering unit into specialized, product-driven teams
  • Systematically scale testing automation across a rapidly evolving product
  • Solid experience writing and maintaining automated UI test suites using modern frameworks (e.g., Playwright, Cypress, or similar tools)
  • Proficient in testing RESTful endpoints and managing network-layer mocking patterns (e.g., using tools like MSW, Postman, or native framework stubs)
  • Comfortable navigating modern web stacks (JavaScript/TypeScript, React ecosystems) and server-side API environments (e.g., PHP/Laravel)
  • Fluent written and spoken English skills for clear technical documentation and team communication
  • A collaborative mindset centered on building testing infrastructure that makes it easy for the whole team to deliver quality
  • Balance attention to detail with delivery velocity, knowing when to demand absolute rigor for critical flows versus shipping lighter features quickly
  • Self-motivated to proactively identify testing coverage gaps without constant oversight
  • Communicates technical defects, edge cases, and quality trade-offs clearly, constructively, and objectively to engineers and product owners

Nice to Have:

  • Experience leveraging Storybook components to build visual regression or snapshot testing routines
  • Prior experience in eCommerce, retail tech, or ad-tech handling analytics reporting platforms or advertiser workflows

Your perks at a glance: Visit our benefits page.

Simply apply online via our career page - we will get back to you as soon as possible!

A Place Where You Can Be You
We take it as our responsibility to create an environment where everyone feels welcome, exactly as they are.
Different backgrounds and perspectives make us stronger and shape our culture in ways that matter.
What we stand for internally, we stand for as a brand: acceptance, inclusion, and a fairer approach to fashion.

Evidence from the posting
Tech stack
“TypeScript · JavaScript · PHP · React”
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