We’re looking for a Junior Product Engineer to support the development of AI-powered features for HAVAS data products. You’ll work alongside senior engineers and product teams to build, test, and deploy backend services and API integrations. Product Engineering Support
Build and maintain Python-based applications and APIs using FastAPI or Flask
Collaborate with senior engineers and product teams to understand and implement user-facing features
Assist with integrating LLM APIs (Gemini, GPT) for use cases like audience insights and content generation
Help connect external advertising APIs (Meta, Google Ads, TikTok, Amazon Ads)
Cloud Deployment & DevOps
Deploy services to cloud environments (Google Cloud Run) with support from senior team members
Participate in CI/CD processes and learn deployment best practices
Monitor application performance and troubleshoot issues
Work closely with cross-functional teams including product managers, designers, and data scientists
Participate in code reviews and learn from senior engineers
Bachelor’s degree in Computer Science, Data Science, Engineering,



or related field (or equivalent practical experience)

0-1 years of professional experience or strong internship/project portfolio

Good working knowledge in English

Basic Python programming skills (familiarity with frameworks like FastAPI or Flask is a plus)
Foundational knowledge of software development principles and data structures
Basic familiarity with Git and version control
Exposure to cloud platforms (Google Cloud, AWS, or Azure)
Any experience with AI/ML projects (coursework, personal projects, or internships)
Basic understanding of Docker or containerization concepts
Interest in advertising technology or digital marketing
Participation in coding bootcamps, hackathons, or open-source projects
Familiarity with API testing tools (Postman, curl)
Production-grade Python development and API design
Cloud deployment and DevOps practices
Agile product development workflows
Cross-functional collaboration in a integral organization
#Contract Type :
Permanent

📌 Junior Product Engineer - AI (Madrid)
🏢 Havas Group
📍 Madrid