AI & Automation Engineer

Farfetch is a leading global marketplace for the luxury fashion industry, connecting customers in over 190 countries with items from more than 50 countries and over 1,400 of the world’s best brands and charming boutiques from around the world. Farfetch opens a world of luxury for endless expressions of style, delivering a truly unique shopping experience and access to the most extensive selection of luxury on a global marketplace.   OPERATIONS The Operations team serves as the backbone of our marketplace, seamlessly managing the entire order journey. From creating online content and ensuring secure payments to order fulfillment and delivery, while providing comprehensive customer and partner care, this team is relentlessly focused on improving the customer experience every single day.   PORTOOur office is near Porto, in the north of Portugal, and is located in a vibrant business hub. It offers a dynamic and welcoming environment where our employees can connect and network with a large community of tech professionals.   THE ROLE   As an AI & Automation Engineer, you will act as both builder and strategic architect. You’ll partner with Product, Data and Operations to eliminate process bottlenecks and deploy production-grade systems that scale, helping evolve internal AI efforts into a centralized service capability.   THE CHALLENGE  “How do you process millions of luxury product SKUs, unstructured brand attributes and high-volume media assets with speed, precision and low human friction?” At Farfetch, our Catalogue and Content domain powers the digital storefront for the world’s leading fashion brands and boutiques. We are building the next generation of automated, AI-driven ingestion and enrichment pipelines. We aren't looking for someone to shoehorn LLMs into every problem, we need someone who knows when a deterministic Python script wins, when a workflow DAG is required and when a multi-step AI agent can accelerate our time to market. WHAT YOU'LL DO: • Partner with stakeholders across Catalogue and Content, Product and Data to understand business problems, challenge existing processes, identify automation opportunities and translate them into practical solutions, from straightforward process automation to more complex AI-driven solutions; • Own the full development lifecycle from initial problem framing and prototyping to production deployment, monitoring and ongoing optimization, including system design, testing, evaluation and continuous improvement; • Build robust GenAI applications and LLM-based workflows leveraging RAG, structured outputs, function/tool calling, context management and multi-step reasoning workflows where appropriate; • Construct and orchestrate reliable backend services and pipelines using Python, Apache Airflow, APIs and cloud-native solutions, optimizing for system reliability, latency and inference/token costs; • Define and track operational metrics (throughput speed, error reduction, operational hours saved, metadata quality) to measure the tangible ROI of every deployed solution; • Establish reusable patterns, practices and capabilities for building reliable, maintainable and scalable AI and automation solutions, implementing AI safety best practices (prompt injection defense, guardrails, output validation); • Explore and prototype emerging AI capabilities, evaluating how they can solve real business problems and evolve into production-ready solutions; • Help shape and expand our AI practice into a fully formed capability and service offering for the Catalogue and Content domain, combining systems design, consulting, delivery, and innovation. WHO YOU ARE: Must have: • 5+ years of relevant development experience (Software Engineering, MLOps, Applied AI, Automation or Data); • A pragmatic approach to technology: knowing when to use AI, conventional automation or neither; • Deep expertise in Python, SQL and designing clean, maintainable backend services/microservices; • Hand