Final answer:
Maggie's role at Buffer, managing campaigns and interacting with customers on social media platforms, is best described as a Community Manager or Social Media Manager.
Step-by-step explanation:
Maggie’s role in social media for Buffer can be characterized as a Community Manager or Social Media Manager. This position entails not only listening to and overseeing the campaign efforts but also actively engaging with the audience by responding to customer messages and inquiries across various platforms. Her responsibilities involve content creation, brand representation, and customer service within the social media realm. Since modern campaigns are incredibly dynamic and interactive, her role in managing the online community is vital for maintaining the company’s reputation and ensuring successful communication with its user base.