An account representative is responsible for managing and maintaining relationships with clients or customers on behalf of a company. The specific job duties of an account representative may vary depending on the industry they work in, but typically include:

1. Relationship Management: Account representatives are responsible for managing and maintaining relationships with clients or customers, and serving as the primary point of contact for all communication.

2. Sales and Business Development: Account representatives are responsible for identifying and pursuing new business opportunities with existing clients or customers, as well as developing strategies to increase sales and revenue.

3. Account Management: Account representatives are responsible for managing and maintaining client or customer accounts, including handling billing, invoicing, and other financial transactions.

4. Customer Service: Account representatives must be able to provide excellent customer service, including the ability to listen to customers' needs and concerns, and respond in a clear and helpful manner.

5. Product and Service Knowledge: Account representatives must have a deep understanding of the products and services offered by their company, as well as the ability to effectively communicate this knowledge to clients or customers.

6. Reporting and Analytics: Account representatives are responsible for generating reports and analyzing data to measure the effectiveness of their client or customer relationships and identify opportunities for improvement.

Overall, an account representative must possess excellent communication and interpersonal skills, as well as a deep understanding of sales and customer service best practices. Strong problem-solving and analytical skills are also important in this role, as is the ability to work well in a team environment. Account representatives may need to work outside of traditional business hours and be available for on-call support as needed.