Sr AI​/ML Engineer; Milwaukee, WI

Position: Sr AI/ML Engineer (Milwaukee, WI) .Johnson Controls International (JCI) is seeking a Senior Data Scientist to join our innovative and impact-driven Data Science and Analytics team. This role is ideal for a seasoned expert with a deep understanding of machine learning, AI, and cloud data platforms, and a strong grasp of the latest advancements in Generative AI and Large Language Models (LLMs).

• * What you will do
• * As a Senior Data Scientist, you will lead the development and deployment of scalable AI solutions—including those powered by LLMs—to accelerate digital transformation across our products, operations, and customer experiences. You'll play a critical role in shaping JCI’s data science strategy, mentoring teams, and driving the use of AI to deliver measurable business value.
• * How you will do it
• * Advanced Analytics, LLMs & Modeling
• Design and implement advanced machine learning models including deep learning, time-series forecasting, recommendation engines, and LLM-based solutions (e.g., GPT, LLaMA, Claude).
• Develop use cases around enterprise search, document summarization, conversational AI, and automated knowledge retrieval using large language models.
• Fine-tune or prompt-engineer foundation models (e.g., OpenAI, Azure OpenAI, Hugging Face) for domain-specific applications.
• Evaluate and optimize LLM performance, latency, cost-effectiveness, and hallucination mitigation strategies for production use.

Data Strategy & Engineering Collaboration

• Work closely with data and ML engineering teams to integrate LLM-powered applications into scalable, secure, and reliable pipelines.
• Contribute to the development of retrieval-augmented generation (RAG) architectures using vector databases (e.g., FAISS, Azure Cognitive Search).
• Support the deployment of models using MLOps principles, ensuring robust monitoring and lifecycle management.

Business Impact & AI Strategy

• Partner with cross-functional stakeholders to identify opportunities for applying LLMs and generative AI to solve complex business challenges.
• Lead workshops or proofs-of-concept to demonstrate value of LLM use cases across business units.
• Translate complex model outputs, including those from LLMs, into clear insights and decision support tools for non-technical audiences.
• * Thought Leadership & Mentorship
• ** Act as an internal thought leader on AI and LLM innovation, keeping JCI at the forefront of industry advancements.
• Mentor and upskill data science team members in advanced AI techniques, including transformer models and generative AI frameworks.
• Contribute to strategic roadmaps for generative AI and model governance within the enterprise.
• * What we look for
• *** Qualifications & Experience
• ** Education in Data Science, Artificial Intelligence, Computer Science, or related quantitative discipline.
• 5+ years of hands-on experience in data science, including at least 1–2 years working with LLMs or generative AI technologies.
• Demonstrated success in deploying machine learning and NLP solutions at scale.
• Proven experience with cloud AI platforms—especially Azure OpenAI, Azure ML, Hugging Face, or AWS Bedrock.
• Open to travel 20%
• * Technical Expertise
• ** Proficiency in Python and SQL, including libraries like Transformers (Hugging Face), Lang Chain, PyTorch, and Tensor Flow.
• Experience with prompt engineering, fine-tuning, and LLM orchestration tools.
• Familiarity with data storage, retrieval systems, and vector databases.
• Strong understanding of model evaluation techniques for generative AI, including factuality, relevance, and toxicity metrics.
• * Leadership & Soft Skills
• ** Strategic thinker with a strong ability to align AI initiatives to business goals.
• Excellent communication and storytelling skills, especially in articulating the value of LLMs and advanced analytics.
• Strong collaborator with a track record of influencing stakeholders across product, engineering, and executive teams.
• * Preferred Qualifications
• ** Experience with IoT, edge analytics, or smart building systems.
• Familiarity with LLMOps, Lang Chain, Semantic Kernel, or similar orchestration frameworks.
• Knowledge of data privacy and governance considerations specific to LLM usage in…