Senior Amazon Marketplace Manager | Online Retailer | Greater Manchester | Hybrid (3 days office / 2 remote) | £50,000-£80,000 Basic A scale up online retailer is seeking a Senior Amazon Marketplace Manager to bring its Amazon operation in-house for the first time. Amazon represents a significant proportion of total business revenue, and the channel has been successfully managed by an external team. The business is now ready to internalise this capability, investing in dedicated, in-house expertise to take ownership of day-to-day Amazon performance while protecting and optimising market share in a challenging trading environment. This role sits within a broader ecommerce team, offering the opportunity to shape how Amazon is managed long term while joining a business with a strong, resilient culture and a hands-on leadership team. The Senior Amazon Marketplace Manager will take ownership of the Amazon channel, with a particular focus on advertising performance, operational detail and sustainable growth rather than aggressive expansion. Key responsibilities include: Leading the transition from an externally managed Amazon account to a fully in-house model Full ownership of Amazon Seller Central for a high-revenue, high-complexity account Absolute responsibility for Amazon Advertising, including Sponsored Products and Sponsored Display Managing significant advertising budgets (up to six figures monthly during peak periods) with accountability for ACOS / TACOS Managing and optimising a large catalogue of 5,000 ASINs Overseeing ASIN optimisation, content quality, A content and Brand Store development Ensuring strong account health, compliance and issue resolution Working closely with internal ecommerce and marketplace leadership, while inventory forecasting remains with merchandising teams Establishing clear reporting, processes and governance around Amazon performance Supporting the build-out of in-house capability, including potential admin or junior support roles Playing a key role in knowledge transfer and structured handover from the incumbent team To be considered for the position of Senior Amazon Marketplace Manager, you will offer: Proven track record in a senior Amazon role within online retail or ecommerce Management of large-scale Amazon catalogues (5,000 ASINs minimum) Confident in Amazon Advertising and comfortable running large budgets independently Ability to operate autonomously, setting strategy and executing day-to-day activity Understands the importance of optimisation, efficiency and market-share protection Is commercially minded and pragmatic rather than growth-at-all-costs Thrives in founder-led or entrepreneurial environments Values culture, accountability and collaboration Experience moving Amazon accounts in-house from an external environment is highly desirable. This is a hands-on role for a Senior Amazon Marketplace Manager who enjoys depth, detail and ownership. Apply today to find out more and be considered! BH35350