DevOps Engineer, who ensures the seamless deployment and operation of the recommendation system in a cloud environment.

Quality Assurance Analyst, who focuses on testing the recommendation system for accuracy and reliability before deployment.

Data Engineer, who designs and implements the data pipelines necessary for feeding data into the recommendation system.

Google Cloud Professional Machine Learning Engineer, who identifies the appropriate machine learning problem type (e.g., collaborative filtering, content-based filtering) and selects the most suitable algorithms to meet the business objectives.