Senior AI Engineer

About the role

The Animal Health IT AI and Analytics team at Merck is looking for a Senior AI Engineer in Prague. The team supports research and development, manufacturing, supply chain, commercial and animal monitoring through data science and AI, and shapes the company's AI strategy while helping non-technical colleagues understand it.

Key responsibilities

• Help business stakeholders design and evaluate AI solutions for their needs
• Lead the technical implementation of AI projects and keep them aligned with stakeholder needs
• Mentor and lead junior colleagues on the same projects
• Write efficient, maintainable code and use DevSecOps tools for deployment and versioning
• Select retrieval techniques, language models and generative AI methods, and document models, algorithms and processes
• Prepare technical reports and presentations, and take part in Agile ceremonies
• Implement automated testing and monitoring to ensure AI system accuracy and reliability

Required profile

• 4+ years of experience in AI engineering
• Strong communication and collaboration skills, analytical and detail-oriented, able to balance several projects
• Proven ability to build scalable AI solutions (e.g. RAG, agentic systems) with cloud services, data pipelines and databases
• Knowledge of prompt and context engineering, RESTful APIs for AI models, CI/CD and test-driven development
• Familiarity with machine learning concepts (neural networks, optimization algorithms, evaluation metrics)
• Bachelor's or Master's in AI, ML or CS highly preferred; other quantitative backgrounds welcome

Required skills

• Python with a focus on backend development
• Preferred: AWS, Docker, fastapi, pydantic, langchain, langgraph, sqlalchemy, celery
• Preferred: experience with generative AI prompting, AI-assisted coding and Agile methodology

What we offer

• Global projects in an international environment, with pension and Canadian medical insurance contributions
• 5 weeks annual leave, 5 sick days, 15 days of paid certified sick leave, 40 paid volunteer hours and 12 weeks of parental contribution
• Tax-free cafeteria benefits, multisport card, Vodafone, Raiffeisen Bank and Foodora discounts
• Up-to-date laptop and iPhone, parking, showers and refreshments
• Competitive salary, incentive pay and visa sponsorship available