Manage seller accounts on Amazon, Flipkart, IndiaMART, GeM, and other e-commerce platforms.* Create and optimize product listings with SEO-friendly titles, descriptions, images, and keywords.* Monitor inventory, pricing, promotions, and product availability.* Process and track customer orders, returns, cancellations, and refunds.* Coordinate with warehouse and logistics teams for timely dispatch.* Run and optimize marketplace advertising campaigns (Amazon Ads, Flipkart Ads, etc.).* Analyze sales reports, customer trends, and competitor activities.* Ensure high seller ratings by responding to customer queries and reviews promptly.* Maintain account health and comply with marketplace policies.* Coordinate with the marketing team for product launches and promotional campaigns.* Prepare weekly and monthly sales and performance reports.