Senior QA Engineer (m/f/d)

Your mission Analyse requirements and user stories and identify gaps, edge cases, and risks early in the development process Design and maintain test documentation, including test plans, test cases, checklists, and requirement traceability Perform functional, regression, integration, exploratory, end-to-end, and acceptance testing Test complex role- and permission-based scenarios, including multiple user roles, restricted access, and cross-board visibility Verify end-to-end integrations with Microsoft 365 Test our iOS and Android applications across different devices and operating systems Validate configuration settings as well as data import and export functionality Report clear and reproducible defects and actively support their resolution Participate in release readiness, smoke testing, and post-release verification Use AI tools to improve test analysis, test design, debugging, and investigation Your profile QA expertise 5+ years of professional experience in Software QA Strong understanding of SDLC, STLC, Agile/Scrum, and shift-left testing practices Solid knowledge of functional, regression, smoke, integration, E2E, exploratory, UAT, compatibility, usability, and localization testing Experience with test design techniques such as boundary value analysis, equivalence partitioning, decision tables, state transitions, pairwise testing, and scenario-based testing Experience working with tools such as Jira or Azure DevOps Strong experience testing complex permission models and RBAC scenarios Experience with workflow-heavy products, such as approval processes, deadlines, or publishing rules Strong root-cause analysis skills using browser DevTools, network requests, console logs, local storage, REST and GraphQL payloads Microsoft 365 Hands-on experience testing applications integrated with Microsoft 365, such as SharePoint, Teams, Outlook, or Entra ID Mobile & API testing Proven experience testing mobile applications on iOS and Android Understanding of mobile-specific risks such as device and OS fragmentation, permissions, network connectivity, push notifications, deep links, and app updates Experience working with TestFlight, Android test builds, and device logs Hands-on experience testing GraphQL APIs, including queries, mutations, variables, fragments, and schema introspection Good understanding of HTTP, JSON, authentication, authorisation, validation, error handling, and status codes Ability to validate data consistency between API and UI AI tools Practical experience using AI assistants such as ChatGPT, Claude, or GitHub Copilot in QA workflows Experience using AI for requirements analysis, test case generation, log investigation, payload analysis, or test automation support Good understanding of AI limitations and responsible handling of sensitive data Other English proficiency at B2 level or higher Nice to have Experience with test automation using C# / .NET, Playwright, or xUnit Knowledge of access-control security testing, including OWASP Top 10, IDOR, and privilege escalation Experience in Enterprise B2B SaaS or governance / compliance software ISTQB certification Why us? A key role with direct impact on the quality and reliability of our product The opportunity to shape QA standards, processes, and testing strategies Close collaboration with Product and Engineering A modern tech environment with complex and meaningful testing challenges 100% remote work with a high level of ownership and flexibility An international and ambitious team with an open feedback culture Regular team offsites and opportunities for professional development