The highest position in digital marketing is being a Digital Marketing Manager in most instances.
Here's related information that you may find helpful - Beginner’s Digital Marketing - 33 Most Frequently Asked Questions (FAQs) And Their Answers To Start Confidently.
P.S:
You are currently on the Digital Marketing Forum page; for more information on various topics that may be helpful, please visit Blog Posts (button below) and share any content post you love with your network.
[If you have any specific questions in mind, please drop a mail and I will answer through a post at the earliest possible time]. Check this forum frequently for fresh posts.