There is a list of factors that you may consider when choosing data engineering service providers. For example, you may pay attention to data engineers’ competencies in relational databases, cloud computing, AI/ML principles, statistics, and algorithms. The specialists should be able to provide effective solutions to data-related business problems and easily operate data engineering tools such as Airflow and Spark. Among other things you might want to consider, there are industry expertise, flexibility, work process, corporate culture, security, and compliance.