A digital marketing expert is a professional who has a deep understanding of the various marketing techniques and strategies that are used in the digital space. The role of a digital marketing expert typically includes developing and implementing marketing campaigns, measuring and analyzing data to optimize campaigns, and staying up-to-date with the latest trends and technologies in digital marketing.

Some of the specific responsibilities that a digital marketing expert might have include:

-Developing and implementing digital marketing strategies to drive website traffic and increase sales or leads. -Managing and optimizing search engine marketing (SEM) and search engine optimization (SEO) campaigns. -Creating and managing social media marketing campaigns on platforms like Facebook, Instagram, and Twitter. -Developing and managing email marketing campaigns. -Creating and managing content marketing strategies, including blog posts, infographics, and videos. -Running display and retargeting advertising campaigns. -Analyzing data from web analytics tools to track and measure the success of campaigns. -Implementing tracking and measurement codes for website and marketing campaigns. -Researching and staying up-to-date with the latest trends and technologies in digital marketing.

To be a digital marketing expert, you will typically need a strong understanding of digital marketing techniques and strategies, as well as experience using various digital marketing tools and platforms. Some companies may also require a bachelor's degree in marketing, communications, or a related field. The best way to start gaining experience and learning is by doing, get your hands on some projects, start with small scale project like creating a website or a social media page of a local business and observe the results, optimize it, check the insights and improve on that. You can also take the course like digital marketing or inbound marketing or search engine optimization and gain the knowledge to apply it later on.