Assign roles individually to each user, giving data engineers the same roles as data analysts plus any additional roles necessary for their extra duties.

Form a single group for the entire data analytics team, granting this group all the roles required by both data analysts and data engineers, and include all team members in this group.

Establish two separate groups: one for data analysts and another for data engineers. Assign data analysts to the data analyst group and data engineers to the data engineer group. Then, grant each group only the roles they need to perform their specific job functions.

Provide roles to each user on an individual basis, assigning to data engineers and data analysts all roles that either role might need.