We are looking for an experienced Test Engineer to join a team delivering projects in the areas of Conversational AI, chatbots, and GenAI solutions. The person in this role will be responsible for designing and executing test strategies for modern AI-based systems. Responsibilities: Designing and implementing test architectures for Conversational AI solutions and MCP / GenAI integrations Creating and maintaining automated test cases for conversational interfaces Testing AI components (NLP/NLU), performing end-to-end testing, and validating ethical aspects Analyzing test results, monitoring quality, and reporting Creating test documentation and structured test concepts Collaborating with project teams in agile environments Must-have requirements: Extensive experience in testing Conversational AI / chatbots (e.g. Cognigy, AI agents, live agents) – minimum 2 projects within the last 5 years Experience in designing and implementing test architectures for MCP and GenAI integrations – minimum 2 project references Strong experience in creating automated tests for conversational interfaces – minimum 2 references (including tools used) Experience with testing methodologies for AI components, including NLP/NLU validation, end-to-end testing, and ethical aspects – minimum 2 references Nice-to-have requirements: Experience with Cognigy and MCP platforms – minimum 2 references Experience with test automation frameworks such as Selenium, Katalon, Robot Framework (certification or participation in at least 3 projects) Experience testing solutions with GenAI integration – minimum 2 references or certifications Experience working in agile methodologies (Scrum, Kanban) – minimum 3 years Strong ability to create structured test concepts and documentation (sample may be requested) Strong communication and presentation skills, especially in explaining complex testing topics (evaluated during the interview) Experience with monitoring and analytics tools for test evaluation – minimum 2 project references German language skills at B1 level