Senior AI Engineer - LLMs & Generative AI (Hybrid Cork)

Johnson Controls Ireland HVAC; Cork; Hybrid; EUR 120,000 - 180,000; Full time

Job summary

Johnson Controls International is seeking a Senior AI Engineer- Data Analytics to join our Data Science and Analytics team in Cork. The role focuses on building scalable AI solutions, including LLM-based systems, to transform products, operations and customer experiences.

You will mentor teams and help shape the AI engineering strategy while delivering measurable business value. Requires 5+ years in AI, data science or ML with hands-on LLM experience, strong cloud platform skills (Azure/OpenAI,

Qualifications

• Education in Data Science, Artificial Intelligence, Computer Science, or related quantitative discipline.

Responsibilities

• Design and implement advanced machine learning models including deep learning, time-series forecasting, recommendation engines, and LLM-based solutions.
• 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 for domain-specific applications.
• Evaluate and optimize LLM performance, latency, cost-effectiveness, and hallucination mitigation strategies for production use.
• 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.
• Support the deployment of models using MLOps principles, ensuring robust monitoring and lifecycle management.
• 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 into clear insights and decision support tools for non-technical audiences.
• Act as an internal thought leader on AI and LLM innovation, mentoring AI engineering teams.
• Contribute to strategic roadmaps for generative AI and model governance within the enterprise.

Skills

Python & SQL

Transformers / ML libs

LLM tooling

Vector DBs

Model evaluation

Education

Data Science / AI / CS degree

Tools

Azure OpenAI

Azure ML

Hugging Face

AWS Bedrock

Job description

Johnson Controls International is seeking a Senior AI Engineer- Data Analytics to join our Data Science and Analytics team in Cork. The role focuses on building scalable AI solutions, including LLM-based systems, to transform products, operations and customer experiences.

You will mentor teams and help shape the AI engineering strategy while delivering measurable business value. Requires 5+ years in AI, data science or ML with hands-on LLM experience, strong cloud platform skills (Azure/OpenAI,