About the role
At Einhell Spain, we are looking for an E-commerce Specialist to drive the performance of our online business, with a particular focus on Amazon Advertising, performance analysis and marketplace operations. The successful candidate will actively participate in the planning, execution and optimisation of advertising campaigns, as well as monitor sales, KPIs and profitability. In addition, they will support the day-to-day management of Amazon Vendor Central, resolve operational issues and follow up on administrative and financial processes. We are looking for an analytical, organised and proactive individual with an interest in digital marketing and e-commerce, who is eager to develop a broad understanding of the business in an international environment. Responsibilities 1. Amazon Advertising & Performance Manage and optimise Amazon Sponsored Products, Sponsored Brands and Sponsored Display campaigns. Monitor advertising budgets and analyse campaign results to maximise return on investment. Track KPIs such as ACOS, ROAS, CPC, CTR, conversion rate and advertising-attributed sales. Identify optimisation and growth opportunities by analysing campaigns, products and commercial performance. Prepare regular performance reports and recommend data-driven improvements. 2. Amazon Vendor Central & Marketplace Management Manage and monitor day-to-day operations within Amazon Vendor Central. Maintain and monitor product catalogues, content, pricing, availability and product listings. Track sales, inventory, purchase orders and marketplace performance indicators. Follow up on operational issues and open cases with Amazon. Support promotions, product launches and catalogue optimisation. Support the development of other marketplaces and online retailers, such as Leroy Merlin, El Corte Inglés and others. 3. Finance, Invoicing & Claims Support the review and reconciliation of Amazon invoices, credit notes,



charges and deductions. Identify discrepancies related to purchase orders, deliveries, invoicing and payments. Manage and follow up on claims 4. Reporting & Business Analysis Prepare reports on sales, advertising, profitability and marketplace performance. Maintain up-to-date KPIs and performance tracking tools. Analyse deviations and identify opportunities for improvement. Use Excel to consolidate data, perform analyses and support decision-making. Requirements Degree in Business Administration, Marketing, Commerce, Economics or a related field. 1–3 years of experience in Amazon Ads, e-commerce, marketplaces or digital marketing. Relevant internships will also be considered. Knowledge of digital advertising and campaign performance analysis. Good Excel skills and confidence working with data. English proficiency sufficient to work with international teams. Analytical, organised and results-oriented mindset. Strong attention to detail, initiative and the ability to manage multiple tasks simultaneously. Nice to have Experience with Amazon Vendor Central or Seller Central. Hands-on experience with Amazon Sponsored Ads, as well as knowledge of ACOS, ROAS, advertising budgets and campaign optimisation. Experience with invoicing, deductions, chargebacks or shortage claims. Familiarity with other marketplaces and online retailers, such as Leroy Merlin, El Corte Inglés…

What we offer
The opportunity to join an established international company in the power tools, home and garden sector. A cross-functional role covering digital advertising, commercial analysis and marketplace operations. Hands-on learning and professional development in e-commerce. Collaboration with national and international teams. A dynamic environment with opportunities to take on new responsibilities. If you are passionate about digital marketing, enjoy analysing data and want to develop your career in Amazon and other marketplaces, we would love to hear from you

📌 E-commerce Specialist – Amazon Ads (Madrid)
🏢 EINHELL ESPAÑA
📍 Madrid