Seller Trading Manager

Location:

Bournemouth, England, United Kingdom.

OnBuy are an online marketplace missioning to be the best choice for every customer, everywhere. We’ve been named one of the UK’s fastest‑growing tech companies in Deloitte’s Technology Fast 50 for the third year in a row and the Fastest‑Growing Tech Business in the South West.

We are a team of driven, motivated people who thrive  succeed you need to own your responsibilities, roll up your sleeves, stay focused, prioritise ruthlessly, and thrive in an ever‑changing environment.

The Seller Trading Manager owns the quality, competitiveness, and visibility of our marketplace catalogue across the UK and international markets. The primary responsibility is to ensure seller data is accurate, enriched and fit for purpose, and to turn that high‑quality data into clear, actionable trading insights. This role does not directly execute seller‑facing actions; instead it generates a structured pipeline of opportunities (content fixes, pricing gaps, availability issues, GTIN/GS1 integrity, search visibility improvements) that are passed to Seller Success and Sales for activation.

• Catalogue Quality Leadership – End‑to‑end governance of seller data quality across regions; enforce accept/optimise/suppress/return rules and uphold gold standards for images, titles, attributes, GTINs/GS1, encoding, and de‑duplication.
• Taxonomy & Mapping – Define and maintain taxonomy, category hierarchy, product mapping, and catalogue segmentation; ensure international readiness (language, symbols, encoding).
• Trading Insights – Analyse visibility, search rank, competitiveness, conversion, GMC health, and availability; generate structured opportunity packets (issue, action, size of prize) for Seller Success & Sales; prioritise via Trading Score, Lead Score, and propensity signals.
• Search & Discoverability – Remove ghost products and fix mis‑categorisation; improve search/browse relevance through data and mapping; set surfacing/suppression/boosting rules based on competitiveness and data quality; partner with Buyer Experience & Tech on ranking logic and filters.
• Pricing Accuracy & Competitiveness – Maintain accurate regional pricing; detect market misalignment; segment inventory (KVI, premium, long‑tail, substitution‑sensitive); surface pricing‑led trading actions for commercial teams.
• Feature Brand Management (UK/EU) – Ensure top brands meet standards for content, GTINs, compliance; lift visibility and conversion using data signals; collaborate with Marketing on discovery, merchandising, and campaigns.
• GMC Readiness – Guarantee catalogue compliance with Google Merchant Center requirements; reduce disapprovals, grow impression share, and mine GMC data for further optimisation.

• Marketplace or eCommerce trading, category management, or product data operations experience.
• Deep understanding of product data structures, taxonomy, attributes, GTINs, and GS1 standards.
• Hands‑on experience with search systems (e.g., Solr), GMC, feed management, and competitive pricing.
• Analytical capability with the ability to translate signals into actionable insights.
• Strong communication and storytelling skills to influence cross‑functional teams.
• High attention to detail with strong commercial judgement.
• Experience driving outcomes through others (not direct line execution).

• Salary up to £70,000 depending on experience.
• Company equity.
• 25 days annual leave + bank holidays.
• One extra day off for your birthday.
• Employee Assistance Programme.
• Perks at Work benefit platform.
• Opportunities for career development and progression.

OnBuy is an equal‑opportunities employer. We are dedicated to creating a fair and transparent workforce, starting with a recruitment process that does not discriminate on the basis of gender, sexual orientation, marital or civil partnership status, pregnancy or maternity, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability, or age.

Remote or Hybrid – Manchester or Bournemouth.

Seniority level:
Mid‑Senior level.

Employment type:

Full‑time.