[Hiring] Senior Software Engineer @Publicis Groupe Holdings B.V

Role Description

At Publicis Groupe, we are driving the technological transformation of the communications, media, and marketing industry through cutting-edge data platforms, artificial intelligence, and cloud-native solutions. We are looking for a Senior Software Engineer to join our AI Platforms team, contributing to the design and development of next-generation products powered by Generative AI, autonomous agents, cloud technologies, and large-scale data platforms. This role combines hands-on software engineering with technical leadership, mentoring junior developers and helping define the evolution of our architecture and engineering practices.

Responsibilities

• Design, develop, and maintain modern full-stack applications using TypeScript, React, Next.js, and Python.
• Build AI-powered products leveraging LLMs, agent frameworks, MCP servers, and cloud-native architectures.
• Design and implement scalable APIs, backend services, and integrations with internal and external platforms.
• Develop and maintain systems that support conversational AI, orchestration workflows, and agent-based solutions.
• Work with data platforms including BigQuery, PostgreSQL, Redis, vector databases, and other analytical technologies.
• Participate in architectural decisions, technical design reviews, and technology evaluations.
• Lead code reviews and establish engineering best practices across the team.
• Mentor and support junior developers, contributing to their technical growth and day-to-day guidance.
• Collaborate with architects, data engineers, AI specialists, product owners, and business stakeholders.
• Contribute to CI/CD pipelines, cloud infrastructure, observability, security, and platform reliability.
• Drive software quality through automated testing, monitoring, and continuous improvement initiatives.

Qualifications

• 6+ years of experience in software engineering.
• Strong experience with TypeScript and modern backend or full-stack development.
• Experience building applications with React and modern frontend frameworks such as Next.js.
• Professional experience developing backend services using Python, Node.js, or similar technologies.
• Experience designing and implementing REST APIs and event-driven architectures.
• Strong understanding of software architecture, distributed systems, scalability, and performance optimization.
• Experience working with relational databases such as PostgreSQL and analytical platforms such as BigQuery.
• Strong knowledge of Git-based development workflows and code review practices.
• Experience mentoring developers and providing technical leadership within engineering teams.
• Solid understanding of Clean Code, SOLID principles, testing strategies, and software engineering best practices.
• B2 English level or higher.

Nice to Have

• Experience building AI-native products using LLMs and Generative AI technologies.
• Experience with agent frameworks such as Google ADK, LangGraph, CrewAI, AutoGen, Semantic Kernel, or similar.
• Experience working with MCP (Model Context Protocol) ecosystems and AI tool integrations.
• Experience with vector databases, RAG architectures, and semantic search solutions.
• Experience with Google Cloud Platform (GCP), including Cloud Run, BigQuery, Cloud Functions, Pub/Sub, Firestore, or Vertex AI.
• Experience with FastAPI, Express.js, serverless architectures, and microservices.
• Experience with Redis, Celery, asynchronous processing, and distributed workloads.
• Knowledge of observability platforms, monitoring, logging, and production AI operations.
• Understanding of data governance, privacy, and AI security best practices.
• Experience in media, marketing, advertising technology, or data-driven digital products.

Benefits

• 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.