LLM-Powered Content Recommendation Engineer for Smart TV

Titan OS Partnership; Barcelona; On-site; EUR 55,000 - 85,000; Full time

Benefits offered by this job

Private health insurance

International work environment

Career growth in a fast-growing CTV IA

Job summary

Titan Operating System S.L. (Titan OS) in Barcelona seeks an AI & Content-Recommendation Engineer to design, train and deploy models for the Smart TV platform, collaborating with ML and backend teams across the full ML lifecycle.

You will prototype ranking models, build data pipelines, expose APIs, and help run A/B tests, with emphasis on scalable, production-grade solutions used by millions of viewers worldwide. Strong Python and ML framework skills required.

Qualifications

• 2-3 years of AI engineering experience with Gen AI/LLM solutions.
• Bachelor’s or Master’s in Computer Science, Data Science, Machine Learning, or related field.
• Strong grasp of probability, statistics, linear algebra, and algorithms.
• Exposure to LLM-powered agents, familiarity with RAG, tool calling, multi-step planning and orchestration.
• Proficiency in Python; familiarity with ML frameworks (PyTorch, TensorFlow, JAX).
• Experience with SQL (BigQuery, PostgreSQL) and pandas/Spark.
• Understanding REST services and how models surface as endpoints.
• Clear communicator in a fast-paced, collaborative environment.

Responsibilities

• Design, build and deploy LLM-powered agents for recommendations.
• Prototype and train ranking/recommendation models from large-scale logs.
• Design offline metrics and analyze results.
• Assist online A/B tests and turn findings into iterations.
• Expose APIs and integrate with Go/Ruby services.
• Contribute to CI/CD pipelines (GitHub Actions, Docker).
• Participate in code reviews and collaboration with teams.
• Work with product owners to prioritize and scope tasks.
• Follow Agile processes and maintain documentation practices.
• Monitor KPIs and service performance.

Skills

Python

LLM design

ML/DL pipelines

SQL

REST APIs

PyTorch

Team collaboration

Education

Bachelor’s or Master’s in CS/DS/ML

Tools

Go

Ruby

Docker

GitHub Actions

Job description

Titan Operating System S.L. (Titan OS) in Barcelona seeks an AI & Content-Recommendation Engineer to design, train and deploy models for the Smart TV platform, collaborating with ML and backend teams across the full ML lifecycle.

You will prototype ranking models, build data pipelines, expose APIs, and help run A/B tests, with emphasis on scalable, production-grade solutions used by millions of viewers worldwide. Strong Python and ML framework skills required.