Sainsbury's
Seller Onboarding Assistant
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Seller Onboarding Assistant – Argos Marketplace
At Argos, our Marketplace is a growing part of how we show up for customers, bringing together more choice, more sellers, and more ways to shop. Behind that is a Marketplace team focused on getting sellers set up for success from day one.
The Seller Onboarding Assistant sits right at the centre of that journey, shaping how new sellers join, launch, and start trading on the platform.
Working across Marketplace, technical, and commercial teams, the role brings together data, systems, and seller engagement. From managing integrations and supporting catalogue setup to tracking onboarding progress, the focus is on delivering a smooth, well-managed experience that works for both sellers and customers.
It’s a fast-moving role with real variety, ideal for someone with experience in eCommerce or marketplace operations who understands the importance of data quality, seller management, and getting the detail right.
What You’ll Do
The Seller Onboarding Assistant owns the end-to-end onboarding journey for new Marketplace sellers, ensuring everything is in place for a smooth and successful go live. Key responsibilities include:
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- Supporting sellers through account setup, from configuring their store and policies to ensuring VAT and operational details are aligned with business standards.
- Working closely with technical teams to coordinate integrations, such as APIs and feed uploads, as well as supporting order management testing.
- Ensuring product catalogue setup meets data quality, taxonomy, and content standards from the onset.
- Identifying and resolving onboarding challenges early, communicating regularly with internal teams to align on seller readiness, timelines, and risks.
- Improving the daily onboarding process by identifying opportunities to make it simpler, faster, and more consistent.
- Building strong relationships with sellers to ensure they feel supported and confident as they launch on the platform.
Who We’re Looking For
This role would suit someone with experience working in:
- eCommerce or marketplace operations, understanding what good onboarding looks like.
- Step-by-step involvement in managing product data effective catalogues.
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Key Attributes
- A strong level of organization, allowing for versatile handling of multiple onboarding journeys simultaneously in a fast-paced environment.
- Competence with systems, integrations, and data—underpinned by attention to detail.
- Confident communication with both external sellers and internal stakeholders across technical and commercial teams.
- A proactive, problem-solving mindset for resolving challenges and keeping onboarding on track.
Essential Criteria
- Experience in eCommerce, marketplace operations, or working with sellers, suppliers, or vendors.
- Understanding of product catalogue structure, data quality, and listing standards.
- Confidence working with integrations, APIs, or feed-based systems.
- Strong organizational skills and ability to manage multiple priorities simultaneously.
- Excellent communication and stakeholder management skills.
- High attention to detail with proficiency in spreadsheets and data tools.
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