Descripción de la oferta
Publicis Groupe, the world's largest communications group, is a solutions platform that is present in more than 100 countries and has more than 98,000 employees. With a unique work philosophy, The Power of One puts clients at the center by promoting the growth of their business through creative agencies (Publicis, Leo Burnett, Publicis Health, Wysiwyg, Nurun and Digitas), media (Zenith, Starcom, Spark and Performics), and areas of transversal knowledge. Overview At Publicis Groupe, we are transforming the way brands use artificial intelligence to create, decide, and execute. Our cross‑functional Technology team develops advanced solutions that directly impact agencies, clients, and operations in Spain and Portugal. We are building the next generation of intelligent assistants and autonomous agents that enhance creativity, strategy, media, and operational efficiency. We are looking for an AI‑specialized Developer who wants to take part in building this infrastructure from the backend. Responsibilities You will be responsible for designing and developing the backend architecture that supports our conversational agents and LLM‑based systems. You Will Work Directly On Orchestration of intelligent agents Integration with foundational models (Gemini, Azure OpenAI, etc.) Scalable APIs and real‑time streaming Cloud‑ready, production‑grade infrastructure AI Agent Development Design and build agents using frameworks such as Google ADK, LangChain, or similar. Implement complex workflows with tool calling (search, retrieval, external APIs, databases). Prompt optimization and response quality evaluation. Backend & APIs Development of asynchronous APIs with FastAPI. Design of modular and scalable architecture. Implementation of streaming endpoints (SSE or WebSockets) for real‑time conversational experiences. LLM Integration Integration with APIs such as Google Gemini or Azure OpenAI. Management of context, citations, grounding, and metadata. Cost control and token usage optimization. Infrastructure & Cloud Containerization with Docker. Deployment in environments such as Google Cloud Platform. Secrets management (Key Vault / Secret Manager). Basic monitoring and observability. Persistence Integration with PostgreSQL. Use of ORMs (SQLAlchemy). Management of sessions, history, and traceability. Quality Clean, maintainable, and well‑documented code. Testing (unit and integration). Best practices for version control and CI/CD. Qualifications Strong experience in Python backend development. Hands‑on experience with FastAPI and asynchronous development. Practical experience integrating LLMs into production systems. Knowledge of prompt engineering and tool usage. Experience with SQL databases. Product‑ and impact‑oriented mindset. Nice‑to‑Have Experience with agent frameworks (Google ADK, LangChain, LlamaIndex). Experience deploying on Google Cloud. CI/CD with GitHub Actions or Azure DevOps. Previous implementation of real‑time streaming. Knowledge of RAG (Retrieval‑Augmented Generation). Experience in marketing, media, or data environments. We Are Looking For Someone Who Enjoys building things from scratch. Has strong technical judgment and architectural vision. Is pragmatic and production‑focused. Understands that AI without business impact is just a demo. Additional Information Why join us? Because we offer reasons such as: Flexible Benefits (Coverflex): Enjoy more than just work with flexible compensation including meal vouchers, health insurance, transportation, and more.
