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Contractor - Senior Performance Marketing Manager (Google Shopping & Bing )

2 hours, 13 minutes ago
United Kingdom
Contract
Senior
Digital Marketing Manager
Marketing and Growth
Google Tag Manager SQL
Apply Now
OnBuy

OnBuy

OnBuy: Leading UK online marketplace with competitive fees for sellers, secure shopping experience, and direct payments via PayPal.

Internet Software & Services
51-250
Founded 2012
$61M raised
View All Jobs 2

Description

  • Own the full Shopping and PMax architecture, including campaign tiers, listing groups, custom labels, negative structures, and feed-driven segmentation.
  • Ensure the Shopping ecosystem scales across tens of thousands of campaigns and millions of SKUs through automation, routing, and lane governance.
  • Control the interaction between PMax and Standard Shopping to balance margin, traffic shaping, and signal quality.
  • Design and maintain advanced segmentation frameworks based on product eligibility, performance cohorts, and commercial signals.
  • Own Merchant Center health, including schema, feed rules, disapprovals, diagnostics, and error remediation.
  • Build labelling systems that translate commercial conditions such as margin, fees, seller activation, and product scoring into schema logic.
  • Optimise performance toward incremental GMV and contribution rather than ROAS, using propensity modelling outputs and SKU-level economics.
  • Lead the Daily Trading Room to identify opportunities, isolate issues, and deploy rapid interventions.
  • Work with Data and BI teams to operationalise product movement rules, activation logic, and automated routing systems.
  • Own tracking integrity across Shopping, PMax, and revenue measurement, including documentation, monitoring, and repeatability.
  • Partner with Data Science to operationalise propensity segmentation and conversion tracking improvements.
  • Manage and commercially challenge third-party Shopping vendors and automation partners, including audit of bidding decisions and validation of performance claims.

Requirements

  • True expert in Google Shopping and PMax, including priorities, campaign types, listing groups, negative logic, feed rules, schema versioning, and Merchant Center troubleshooting.
  • Deep Merchant Center expertise with hands-on ownership of schema troubleshooting, attribute debugging, disapproval resolution, and feed-rule design.
  • Experience operating in a multi-million SKU marketplace environment.
  • Experience managing Shopping and PMax for large catalogues at scale, with 100,000+ SKUs minimum and ideally 1M+.
  • Proven experience designing Google Shopping/PMax architecture, including campaign tiering, listing-group design, negative-logic frameworks, and feed-driven segmentation.
  • Ability to build and maintain custom label frameworks tied to commercial logic such as margin tiers, stock states, product groups, and performance segmentation.
  • Demonstrated capability implementing SKU-level contribution or profit-based bidding logic.
  • Experience controlling PMax signal pathways by preventing contamination, isolating high-value SKUs, and shaping traffic using feed-level engineering.
  • Ability to diagnose and repair issues across the full chain from Feed to Merchant Center to Ads to PMax/Shopping.
  • Experience with inventory filtering and multi-tier segmentation such as L1/L2/L3 or equivalent layered Shopping systems.
  • Hands-on experience with feed tools such as Channable, DataFeedWatch, Intelligent Reach, or custom internal feeds beyond surface-level usage.
  • Ability to run structured architecture tests such as campaign consolidation, label schema redesigns, and feed experiments.
  • Strong analytical capability and comfort with experimentation.
  • Confident with contribution-based optimisation and rapid trading cycles.
  • Desirable: familiarity with profitability modelling or dynamic pricing.
  • Desirable: experience with BI tools or SQL.
  • Desirable: experience with automation, scripts, or feed tools.

Benefits

  • This is a contract role while the company recruits for the permanent position.
  • OnBuy is an equal opportunities employer with a fair and transparent recruitment process.
  • The company states it 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.
  • Candidates are warned that OnBuy does not use WhatsApp or other messaging apps to contact applicants.

Interested in this position?

Apply directly on the company website

Apply Now

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