AI Engineer

Company Description

Within Publicis Groupe's Intelligent Creativity business, we specialize in bringing creative ideas to life, and to consumers.

By combining 100 years of craft excellence with 6,000 experts across 52 locations of the world's biggest studio network, we leverage the industry's richest data, through the power of agentic AI, to radically redefine content production with Intelligent Content. We intuitively deliver this through Marcel Make, the world's first Intelligent Content agent. The result? Predictively performing content that unlocks business growth in unprecedented ways.

No more guesswork. No more waste. Just content that works, working a lot harder.

The GenAI team leads innovation in generative AI, developing and deploying large language models (LLMs) and advanced AI technologies for business impact.

Overview

We are seeking an experienced AI/ML Engineer to design, build, and scale our generative AI solutions. In this role, you will lead initiatives around large language models, image and multimodal generation, and the deployment of these technologies in production using Google Cloud Platform (GCP). You will set technical standards for GenAI, mentor the team, and ensure best practices in software engineering, collaboration, and code quality.

Responsibilities

• Architect and develop backend services, APIs, and orchestration layers that power GenAI features, including LLM-driven workflows (RAG, agents, content generation) and image generation pipelines.
• Own end-to-end delivery of GenAI-powered features: from system design and implementation to deployment, monitoring, and iteration.
• Build and maintain scalable, production-grade infrastructure across GCP and Azure, leveraging services such as Vertex AI, Cloud Run, Azure OpenAI Service, Azure Web Apps, and Azure Application Insights.
• Design and maintain CI/CD pipelines for GenAI applications, ensuring reliable deployment, versioning, and rollback of model integrations and service dependencies.
• Enforce software engineering best practices across the codebase: modularity, test coverage, code reviews, documentation, and observability.
• Champion strong Git workflows such as branching strategies, pull request hygiene, and issue tracking to keep a growing team shipping cleanly and collaboratively.
• Evaluate and integrate third-party AI providers and models (OpenAI, Google, etc.) as managed dependencies, applying appropriate abstraction and vendor isolation.
• Mentor engineers on the team, lead technical discussions, and drive knowledge sharing across the engineering organisation.

Qualifications

• Master's degree in Computer Science, Software Engineering, or a related field.
• 3–6 years of professional software engineering experience, with at least 1–2 years working on systems that integrate or productionise AI/ML components.
• Strong backend engineering skills in Python; experience designing APIs, async systems, and service-oriented architectures.
• Solid experience deploying and operating workloads across both GCP (Cloud Run, Vertex AI, Pub/Sub, BigQuery, etc.) and Microsoft Azure environments.
• Proven command of software engineering fundamentals: CI/CD, containerisation (Docker/Kubernetes), testing strategies, logging, and monitoring.
• Practical experience integrating LLM APIs (OpenAI, Gemini, Claude, HuggingFace, etc.) and image generation services into production applications such as model selection, prompt management, and output handling included.
• Strong Git and collaboration practices: branching, merging, code review, and PR management in a team environment.
• Awareness of prompt safety, output validation, and responsible AI considerations in production systems.
• Clear communicator and collaborator; comfortable working across engineering, product, and design in a multidisciplinary team.

Benefits

• Remote work: up to 2 days per week
• Global mobility: possibility to work anywhere in the world for up to 6 continuous weeks each year after 1 year with the company (Programme Talents Work Your World)
• Continuous learning: access to 30,000 e-learning modules and certifications in partnership with LinkedIn Learning on the Marcel proprietary platform

Commitment to Diversity

Viva La Différence!

This philosophy of Publicis Groupe reflects our longstanding commitment to diversity and the conviction that our talents are our greatest wealth and best asset.

We value all singularities, without distinction of age, gender, skin colour, social origin, religion, or sexual orientation… only competence and energy matter! We encourage all qualified applications and will be delighted to support throughout the recruitment process in a personalised manner any candidate in a situation of disability who requests it.

Publicis France is committed to equal opportunities and equity of opportunities for all.