Lead AI Engineer - Global Infra

dunnhumby is the global leader in Customer Data Science, partnering with the world’s most ambitious retailers and brands to put the customer at the heart of every decision. We combine deep insight, advanced technology, and close collaboration to help our clients grow, innovate, and deliver measurable value for their customers. dunnhumby employs nearly 2,500 experts in offices throughout Europe, Asia, Africa, and the Americas working for transformative, iconic brands such as Tesco, Coca-Cola, Nestlé, Unilever and Metro. As a Lead AI Engineer, you will design, build and operate production-grade GenAI and agentic AI solutions that power dunnhumby’s global products and services from our India hub. Additionally if needed, you will lead a team of AI engineers. You will combine deep hands-on AI/ML and cloud engineering experience with people leadership and stakeholder management, ensuring that our AI capabilities are secure, scalable, observable and deliver measurable value for brands and shoppers. What you’ll be doing • Design AI agents and multi-step agentic workflows, including tool calling, MCP servers and agent-to-agent protocols, to automate and augment retail media and insight use cases. • Ensure security, privacy and governance across AI solutions, including handling of sensitive data, access control, secrets management and safety/guardrail mechanisms. • Define and embed DevOps/MLOps practices for AI (CI/CD for models, prompts and agents; infrastructure as code; environment promotion; blue/green and canary releases; incident response). • Implement robust observability for AI systems: tracing prompts and tool calls, logging, metrics, dashboards and alerts to monitor quality, performance and cost. • Establish AI testing and evaluation strategies: oAline and online model evaluation, red-teaming, regression testing, and human-in-the-loop review and feedback loops. • Act as a hands-on technical leader, reviewing designs and code, unblocking complex problems, and setting engineering standards and best practices for AI delivery. • Coach, mentor and develop AI engineers, supporting their growth and ensuring a culture of learning, experimentation and continuous improvement. What we expect from you • Strong experience in software/data/ML engineering, including significant hands-on work building and operating AI/ML or LLM-based solutions in production. • Proven experience leading AI/ML/LLM engineering teams or acting as a senior technical lead, ideally in a global or distributed setup. • Deep practical knowledge of GCP and Vertex AI, with experience designing and operating production workloads using Vertex AI models, endpoints, pipelines and RAG/vector search. • Experience with Microsoft AI / Azure AI Foundry or similar platforms, and familiarity with at least one modern agentic AI framework or platform. • Solid understanding of LLMs and foundation models (transformers, tokenization, context windows, embeddings, RAG, fine-tuning vs adapters vs prompts, tool calling and risks such as hallucinations or prompt injection). • Hands-on experience designing and building AI agen