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. This is a hands-on role where you'll learn to build scalable applications, integrate AI and advertising APIs, and contribute to production features for Converged Activate and Match.AI.Main ResponsibilitiesProduct Engineering SupportSupport the development of AI-driven features by implementing technical requirements under guidanceBuild and maintain Python-based applications and APIs using FastAPI or FlaskCollaborate with senior engineers and product teams to understand and implement user-facing featuresAI & API IntegrationAssist with integrating LLM APIs (Gemini, GPT) for use cases like audience insights and content generationHelp connect external advertising APIs (Meta, Google Ads, TikTok, Amazon Ads)Learn and apply prompt engineering techniques to improve AI outputsCloud Deployment & DevOpsDeploy services to cloud environments (Google Cloud Run) with support from senior team membersParticipate in CI/CD processes and learn deployment best practicesMonitor application performance and troubleshoot issuesLearning & CollaborationWork closely with cross-functional teams including product managers, designers, and data scientistsParticipate in code reviews and learn from senior engineersDocument your work and communicate progress effectivelyEducationBachelor's degree in Computer Science,



Data Science, Engineering, or related field (or equivalent practical experience)Previous Experience0-1 years of professional experience or strong internship/project portfolioLanguage SkillsGood working knowledge in EnglishKey CompetenciesBasic Python programming skills (familiarity with frameworks like FastAPI or Flask is a plus)Understanding of APIs and how to work with themFoundational knowledge of software development principles and data structuresEagerness to learn about LLM technologies and AI applicationsBasic familiarity with Git and version controlProblem-solving mindset and attention to detailStrong communication skills and ability to ask questionsComfortable working in a collaborative, multicultural team environmentNice To HaveExposure 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 conceptsInterest in advertising technology or digital marketingParticipation in coding bootcamps, hackathons, or open-source projectsFamiliarity with API testing tools (Postman, curl)What You'll LearnProduction-grade Python development and API designWorking with cutting-edge LLM technologies in real business applicationsCloud deployment and DevOps practicesAdvertising technology ecosystem and campaign automationAgile product development workflowsCross-functional collaboration in a integral organization#J-18808-Ljbffr

📌 Junior Product Engineer - Ai (Madrid)
🏢 Havas Media Network España
📍 Madrid