Marketplace Account Manager

Sigma Beauty is seeking a detail-oriented and growth-focused Marketplace Account Manager to oversee and optimize our marketplace presence, with a strong emphasis on Amazon US and Amazon EU. This role will be responsible for ensuring listings are accurate, optimized, visually compelling, and fully aligned with brand standards while driving marketplace growth through advertising, SEO strategy, and operational excellence.
The ideal candidate has hands-on experience managing Amazon Seller/Vendor Central accounts and a strong background in Amazon advertising. This position requires someone who understands how to strategically grow marketplace performance through paid media, SEO optimization, and brand protection initiatives. Experience with Amazon advertising is required for this role.
In addition to Amazon US and Amazon EU, this role will also support and manage additional marketplace platforms as needed.
This is a growth-oriented role with opportunities for increased responsibility and compensation based on performance and business impact. Starting salary is $75,000, with a formal compensation review planned after 6–12 months.
Primary Responsibilities

Manage new item setup across Amazon and additional marketplace platforms
Optimize product image stacks, A+ Content, and Brand Store storefronts to maximize conversion and brand consistency
Ensure all listings, images, and enhanced content are live, accurate, and aligned with brand guidelines
Monitor and maintain Amazon case logs, escalating and resolving issues efficiently
Identify and troubleshoot suppressed listings, missing content, listing errors, and account health concerns
Maintain and update variation families including size, scent, bundle, and pack changes
Develop and execute Amazon SEO strategies including keyword optimization, titles, bullet points, backend search terms, and content enhancements
Analyze marketplace trends, search performance, and competitor activity to identify growth opportunities and improve organic ranking
Manage and optimize Amazon advertising campaigns including Sponsored Products, Sponsored Brands, Sponsored Display, and DSP initiatives
Monitor advertising performance metrics including ROAS, CTR, CPC, TACOS, and conversion rates while making strategic optimizations
Develop strategic advertising recommendations to improve traffic, ranking, sales performance, and profitability
Manage and address unauthorized sellers, reseller issues, MAP violations, and marketplace brand protection concerns
Support and manage additional ecommerce marketplaces as business needs evolve
Partner with internal teams and external agencies to support marketplace growth initiatives and product launches
Provide strategic recommendations for marketplace expansion, optimization, and overall account growth
Qualifications

3+ years of experience managing Amazon marketplace content and operations
Required: Proven hands-on experience managing and optimizing Amazon advertising campaigns
Strong understanding of Amazon advertising platforms including Sponsored Products, Sponsored Brands, Sponsored Display, and DSP fundamentals
Strong understanding of Amazon SEO including titles, bullets, backend search terms, keyword strategy, and catalog optimization
Demonstrated experience developing Amazon marketplace growth and optimization strategies
Experience with A+ Content, Brand Store management, and listing optimization strategies
Experience addressing unauthorized sellers, reseller issues, MAP violations, and brand protection initiatives on marketplaces
Proven ability to troubleshoot suppressed listings, variation issues, and account health concerns
Strong analytical mindset with the ability to interpret performance data and implement strategic improvements
Excellent attention to detail with a continuous improvement mindset
Strong communication and collaboration skills with internal and external business partners
Self-starter with excellent follow-up skills and the ability to prioritize competing priorities
Experience managing Amazon US and Amazon EU marketplaces preferred
Experience managing additional ecommerce marketplaces is a plus
Beauty industry or ecommerce brand experience is a plus

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