Do Salesforce Bulk API jobs run in parallel mode by default?

The Salesforce Bulk API jobs do indeed run in parallel mode by default. This capability is designed to efficiently process large volumes of records by leveraging multiple concurrent processing threads. This parallel processing allows for faster data load times, as it can handle different batches simultaneously rather than sequentially.

When utilizing the Bulk API, the system automatically optimizes job execution by taking advantage of available threads, which is particularly beneficial when dealing with large datasets. This design choice aligns with the operational requirements of handling significant data workflows, enabling users to achieve better performance and reduce the turnaround time for data operations.

While configurations may exist to modify processing behavior or manage concurrency levels, the default setting effectively activates parallel processing to enhance performance without requiring additional adjustments by the user.