Lead AI Engineer

Working at CoreMedia is about working on exciting projects, for international customers, at global locations, with more than 220 great colleagues shaping the digital world. Join our team in Portugal.

• Architect and develop AI-driven solutions using LLMs including GPT, Claude, Gemini, and LLaMA.
• Build and maintain RAG pipelines with integration to a vector database for semantic search and retrieval.
• Design and manage workflows using LangChain, LangGraph, and LangSmith.

• Apply Model Context Protocol (MCP) for structured and reusable prompt engineering.
• Develop backend services primarily in PHP (preferred), or alternatively in Python or Java.
• Design, consume, and maintain RESTful and external APIs, ensuring secure and efficient integrations.
• Deploy AI services across AWS, Azure, or on-prem infrastructure as required.
• Monitor, evaluate, and optimize LLM usage and performance in real-world applications.
• Lead and mentor engineers across AI/ML development efforts.

• 2+ years of experience in AI, NLP, or LLM-based applications.
• 5+ years of experience with API development and consumption (REST, JSON, OAuth, etc.).
• Hands-on experience working with at least one of the major LLMs: GPT, Claude, Gemini, or LLaMA.
• Practical experience with RAG architecture and vector databases (e.g., ChromaDB, Pinecone, Weaviate).
• Strong backend development skills, preferably in PHP (alternatively Python or Java).
• Familiarity with LangChain, LangGraph, and LangSmith.
• Solid understanding of MCP (Model Context Protocol) and structured prompt design.
• Experience deploying and operating AI systems on AWS, Azure, or on-prem environments.

• A leadership role in an AI-first product team
• A hybrid working model (remote + office)
• Flexible working hours
• An onboarding program to guide you through all the company's departments
• Several amenities and perks
• Unique office space in the historical centre of Porto 
• All the benefits of a large corporation combined with an informal and friendly environment
• A commitment to your development (we enjoy sharing and learning), with a career plan and regular feedback (regular 1-1 meetings and performance reviews)
• Health insurance