Senior AI Engineer / Developer

Role Purpose The AI Engineer is responsible for designing, building, deploying, and operating production-grade AI solutions that address prioritized business opportunities across Lonza. Working closely with cross-functional teams, including IT, Data, and Platform teams, this role delivers scalable AI applications, agents, and integrations from prototype through production. The AI Engineer applies modern AI/ML, software engineering, and cloud-native practices while contributing reusable components, patterns, and capabilities back into the Lonza AI platform to accelerate enterprise-wide adoption and delivery of AI solutions. Key Responsibilities AI Solution Build & Delivery

• Design and build end-to-end AI applications, agents, and services for prioritized business opportunities, including APIs, integrations, data pipelines, and user-facing components where required.
• Apply and continuously refine prompting, model selection, and optimization techniques, leveraging LLM evaluation frameworks, Retrieval-Augmented Generation (RAG), embeddings, tool-calling frameworks, and agentic AI architectures.
• Build and orchestrate AI agents that interact with enterprise systems, applications, and data while ensuring appropriate controls, traceability, and human oversight.