Descripción de la oferta
Company description
Publicis Groupe, the world's second 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.
Publicis Groupe links Creativity, Technology and Data offering a value proposition that effectively connects brand and consumer.
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 Developer who wants to participate 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 infrastructure and production. Your work will directly impact tools used by strategy, media, creative, and data teams.
AI Agent Development
Design and build agents using frameworks like Google ADK, LangChain, or similar.
Implement complex flows with tool calling (search, retrieval, external APIs, databases).
Optimize prompts and evaluate response quality.
Backend & APIs
Develop asynchronous APIs with FastAPI.
Design modular and scalable architecture.
Implement streaming endpoints (SSE or WebSockets) for real-time conversational experiences.
LLM Integration
Integrate with APIs such as Google Gemini or Azure OpenAI.
Manage context, citations, grounding, and metadata.
Control costs and optimize token usage.
Infrastructure & Cloud
Containerization with Docker.
Deployment on platforms like Google Cloud Platform.
Secrets management (Key Vault / Secret Manager).
Basic monitoring and observability.
Persistence
Integrate with PostgreSQL.
Use ORMs (SQLAlchemy).
Manage sessions, history, and traceability.
Quality
Write clean, maintainable, and documented code.
Unit and integration testing.
Follow best practices for versioning and CI/CD.
Qualifications
Strong experience in Python backend development.
Hands-on experience with FastAPI and asynchronous development.
Practical experience integrating LLMs in production.
Knowledge of prompt engineering and tool usage.
Experience with SQL databases.
Product-oriented mindset and impact-driven approach.
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 technical judgment and architectural vision.
Is pragmatic and production-oriented.
Understands that AI without business impact is just a demo.
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.
Growth Opportunities: You can advance in your career not only through the experience of working with major clients but also by accessing local and global training programs specialized according to your role, covering both technical and soft skills.
Free Online Training: You can access unlimited courses from LinkedIn Learning and Udemy Catalogs through our artificial intelligence platform "Marcel".
Partner Certifications: You'll have the opportunity to obtain certifications from industry giants such as Meta, Google, or Amazon.
Work from anywhere: Telecommute up to 6 weeks from over 100 countries with our #WorkYourWorld program.
Attractive holidays package including your birthday & Advertising Day off plus some additional days off. Rest is also important!
Well-being: We prioritize the well-being of our staff and organize various health initiatives such as daily meditation or yoga among others.
Employee benefits are an integral part of the company’s annual compensation package. These benefits are subject to the company’s current policies and guidelines and may be modified, updated, or adjusted at the company’s discretion to reflect organizational needs, regulatory requirements, or business conditions.
We are certified as a Great Place to Work, your happiness and providing you with an outstanding experience means a lot to us, let's enjoy!
Here at Publicis Groupe, we are committed to building a culturally diverse workforce and therefore strongly encourage applications from underrepresented groups. We are committed to equality of opportunity and welcome applications from all individuals, regardless of their background: we do not discriminate on the basis of race, color, religion, gender identity or expression, sexual orientation, national origin, age, disability, marital status, or any individual´s status in any group or class protected by law.
If you have any reasonable adjustment needs arising from a disability or medical condition to fully participate in the recruitment process, please discuss this with the recruiter who contacts you.
All employees are committed to complying with obligations regarding Information Security and Technologies, obligations related to the use of Artificial Intelligence, obligations stemming from the Quality and Environmental Management System, as well as obligations derived from the Integrity Management System, Corruption Prevention, and the Anti-Bribery and Anti-Corruption Policy. Furthermore, all employees are required to complete mandatory training courses, declarations, and compliance commitments in these areas.
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