Senior AI Application Test Engineer; m​/f​/d

We are seeking a highly experienced Senior AI Application Test Engineer to join our team. This role requires deep expertise in testing AI-powered applications, particularly conversational AI and RAG (Retrieval-Augmented Generation) based systems. You will be responsible for ensuring the quality, scalability, and reliability of our AI solutions across the entire application lifecycle.

• Design and execute comprehensive test strategies for AI/ML applications, with focus on conversational AI and RAG-based systems
• Lead end-to-end testing of AI applications from development through production deployment and scaling
• Develop and implement testing frameworks for evaluating LLM outputs, retrieval accuracy, and response quality
• Test AI model performance, accuracy, bias, hallucinations, and edge cases
• Validate data pipelines, vector databases, and embedding quality in RAG architectures
• Conduct scalability and performance testing for AI applications handling large-scale data
• Establish quality metrics and KPIs specific to AI application testing
• Collaborate with data scientists, ML engineers, and developers to define testable requirements
• Mentor junior QA team members on AI testing methodologies

• AI/ML Testing: 5+ years of hands‑on experience testing AI applications, conversational AI systems, chatbots, and RAG-based solutions
• Azure Expertise: Deep knowledge of Azure AI services including Azure OpenAI, Azure ML, Cognitive Services, Azure AI Search, and related components
• Testing Frameworks: Proficiency in automation testing tools and frameworks (Selenium, Playwright, PyTest, etc.)
• Programming: Strong coding skills in Python; experience with test automation scripting
• AI Testing Tools: Experience with LLM evaluation frameworks, prompt testing, and AI‑specific quality metrics
• Data Testing: Knowledge of testing data pipelines, ETL processes, and vector databases
• Performance Testing: Experience with load testing AI endpoints and monitoring model inference performance
• CI/CD: Familiarity with Azure Dev Ops, Git Hub Actions, and automated testing pipelines

• Experience testing Azure OpenAI implementations and custom GPT applications
• Knowledge of MLOps practices and model monitoring
• Understanding of NLP, embeddings, and semantic search concepts
• Familiarity with prompt engineering and LLM best practices
• Experience in Agile/Scrum methodologies
• Previous work in enterprise‑scale AI deployments

• Excellent analytical and problem‑solving abilities
• Strong communication and collaboration skills
• Ability to work in fast‑paced, innovative environments
• Detail‑oriented with a quality‑first mindset
• Self‑motivated and proactive in identifying testing gaps

With over 28 years of experience, we have come to understand that innovation is the only way to provide agile, practical solutions that transform businesses and careers. Our resourcing and smart services help you to realize tomorrow’s potential. Discover the amazing things possible when you bring the right people and the right technologies together. At Halian, we recognize that diversity, equity, and inclusion (DEI) are essential to building high‑performing teams for our clients.

We are committed to connecting organizations with top talent from all backgrounds, ensuring that every individual feels valued, respected, and empowered to contribute their unique perspectives. We encourage applications from all qualified candidates, regardless of race, gender, disability, or any other characteristic that makes them unique. By fostering diverse and inclusive workplaces, we help our clients drive innovation, enhance collaboration, and better reflect the communities they serve.

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