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# Ai Developer Senior

- **Company:** PUBLICIS GROUPE
- **Location:** Madrid, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Multitier Architecture, Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Architectural Patterns, Microsoft Azure, Cyber Security, Databases, DevOps, Python (Programming Language), PostgreSQL, Language Modeling, Standard Sql, SQL Databases, Stemming, Systems Integration, Management of Software Versions, WebSocket, WYSIWYG, Zenith, Data Logging, Cloud Platform System, Large Language Models, Multi-Agent Systems, Apache Spark, Backend, Git, Fastapi, Git Flow, Solid Principles, Domain Driven Development, Restful APIs, Key Vault
- **Published:** July 29, 2026
- **Apply:** https://www.buscojobs.com.es/ai-developer-senior-en-madrid-ID-365072005

## About the Role

architectures (hexagonal, clean architecture, etc.)Strong knowledge of SQL databases and data modelingAbility to make technical decisions with a long?term architectural visionNice to HaveExperience with agent frameworks (Google ADK, Lang Chain, Llama Index)Experience working with Google CloudCI/CD experience (Git Hub Actions, Azure Dev Ops)Real?time streaming implementationsKnowledge of RAG (Retrieval?Augmented Generation)Experience in marketing, media, or data environmentsWe're looking for someone whoEnjoys building from scratchHas strong technical judgment and architectural visionIs pragmatic and product?orientedUnderstands that AI without business impact is just a demoBenefitsFlexible 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

## Description

Company descriptionPublicis 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.OverviewWe are looking for aSenior Software Engineer specialized in AIto play a key role in designing, shaping, and evolving the next generation of agent-based architectures.You will work closely with cross?functional teams to build innovative solutions that transform how brands operate, make decisions, and create value.ResponsibilitiesYou will lead the design and development of the backend architecture powering conversational agents and LLM?based systems, ensuring scalability, robustness, and long?term evolution.You will work on:Orchestrating intelligent agents and multi?agent systemsIntegrating foundation models (e.G. Google Gemini, Azure Open AI)Designing scalable APIs, including real?time streaming capabilitiesBuilding cloud?ready infrastructure for production environmentsYour work will directly impact tools used by strategy, media, creative, and data teams.AI Agent DevelopmentDesign and build AI agents using frameworks such as Google ADK, Lang Chain, or similarImplement complex workflows with tool calling (search, retrieval, APIs, databases)Optimize prompts and evaluate response qualityBackend & APIsDevelop asynchronous APIs using Fast APIDesign modular and scalable architecturesImplement real?time streaming endpoints (SSE, Web Sockets)LLM IntegrationIntegrate with APIs like Google Gemini or Azure Open AIManage context, grounding, citations, and metadataOptimize token usage and control costsInfrastructure & CloudContainerize services using DockerDeploy and manage applications in cloud environments (GCP, Azure, etc.)Handle secrets securely (Key Vault, Secret Manager, etc.)Implement advanced observability (logging, metrics, alerting, tracing)Data & PersistenceWork with Postgre SQL and SQL?based systemsUse ORMs such as SQLAlchemyManage session history, traceability, and data flowsEngineering QualityWrite clean, maintainable, and well?documented codeApply testing practices (unit, integration, E2 E when needed)Follow SOLID principles, Clean Architecture, and DDD when relevantEnsure proper versioning (Git), branching strategies, and code reviewsBuild resilient, fault?tolerant systems for productionQualificationsStrong product mindset, focused on business impact and end?user valueExperience working in Agile environments with cross?functional teamsSolid backend experience in Python, building scalable servicesStrong experience with asynchronous development (Fast API or similar)Hands?on experience integrating LLMs into production systemsDeep understanding of clean code, SOLID principles, and software designExperience with modern architectures (hexagonal, clean architecture, etc.)Strong knowledge of SQL databases and data modelingAbility to make technical decisions with a long?term architectural visionNice to HaveExperience with agent frameworks (Google ADK, Lang Chain, Llama Index)Experience working with Google CloudCI/CD experience (Git Hub Actions, Azure Dev Ops)Real?time streaming implementationsKnowledge of RAG (Retrieval?Augmented Generation)Experience in marketing, media, or data environmentsWe're looking for someone whoEnjoys building from scratchHas strong technical judgment and architectural visionIs pragmatic and product?orientedUnderstands that AI without business impact is just a demoBenefitsFlexible 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 Linked In 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 #Work Your World program.Attractive holidays package including your birthday and 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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