Junior Product Engineer - AI
- Hiring from
- Spain
- Work type
- Hybrid
- Posted
- Sep 24, 2026
Agency :
Havas Media Group SpainJob Description :
.Main Responsibilities
Product Engineering Support
Support the development of AI-driven features by implementing technical requirements under guidance
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
AI & API Integration
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)
Learn and apply prompt engineering techniques to improve AI outputs
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
Learning & Collaboration
Work closely with cross-functional teams including product managers, designers, and data scientists
Participate in code reviews and learn from senior engineers
Document your work and communicate progress effectively
Education
Bachelor's degree in Computer Science, Data Science, Engineering, or related field (or equivalent practical experience)
Previous Experience
0-1 years of professional experience or strong internship/project portfolio
Language Skills
Good working knowledge in English
Key Competencies
Basic Python programming skills (familiarity with frameworks like FastAPI or Flask is a plus)
Understanding of APIs and how to work with them
Foundational knowledge of software development principles and data structures
Eagerness to learn about LLM technologies and AI applications
Basic familiarity with Git and version control
Problem-solving mindset and attention to detail
Strong communication skills and ability to ask questions
Comfortable working in a collaborative, multicultural team environment
Nice to have:
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)
What You'll Learn
Production-grade Python development and API design
Working with cutting-edge LLM technologies in real business applications
Cloud deployment and DevOps practices
Advertising technology ecosystem and campaign automation
Agile product development workflows
Cross-functional collaboration in a global organization
#LI-CO1
Contract Type :
PermanentHere at Havas across the group we pride ourselves on being committed to offering equal opportunities to all potential employees and have zero tolerance for discrimination. We are an equal opportunity employer and welcome applicants irrespective of age, sex, race, ethnicity, disability and other factors that have no bearing on an individual’s ability to perform their job.