Mariusz Jagielski
Amazon expert · Builder of AI agents for account management
I have worked in e-commerce and online sales for 15 years. Since 2016, I have specialized in Amazon Seller Central and Vendor Central, Amazon Ads, catalogue and listings, A+ Content and profitability analytics.
I am an Amazon Ads Partner and hold the Sponsored ads certificate. Today I combine that experience with a team of AI agents that I build and configure for each client.
I am not an agency — you work directly with me. I review the specific account, identify the gaps and propose data-driven actions.
I work on Amazon marketplaces in the EU (DE, FR, IT, ES, NL, PL, SE) and remotely with companies across Europe and the US.
I also take on independent, fixed-scope audits of Amazon Ads spend for Seller Central (3P) brands and 1P vendors: profitability after Amazon fees, incrementality and budget allocation. A written report with no commitment to ongoing ad management.
Areas of specialization
Amazon Seller Central
3P strategy, account management, catalogue and listings, A+ Content, product visibility.
Amazon Vendor Central
1P model, trading terms, deductions, profitability of sales to Amazon.
Amazon Ads
Campaign structure, search terms, bids, budgets and ad profitability measured against margin.
AI agents and automation
Building and configuring teams of AI agents for the daily running of Amazon accounts.
My experience
Started selling online. Hands-on with the basics: listings, pricing, logistics. First experiments with Amazon Seller Central.
Working with Amazon Seller Central and Amazon Vendor Central. Learning the specifics of each model, Ads campaign structures, FBA management, A+ Content optimization.
Focus on listing optimization, marketplace SEO strategy and Sponsored Products campaign structures. Analysis of ACoS, TACoS and SKU profitability.
First EU expansion projects — Amazon DE, FR, IT, ES. Experience with content localization, VAT and cross-border logistics across Amazon EU.
BaseLinker implementation, ERP/WMS integrations, process automation for large catalogues. Consulting for distributors with hundreds or thousands of SKUs.
Working with brands, manufacturers and distributors on Amazon in Poland and across Europe. Strategic consulting, audits, operational implementation support.
Teams of AI agents for the daily management of clients’ Amazon accounts.