Principal Product Manager – Buyer Growth

OnBuy

Principal Product Manager handling buyer growth for OnBuy, EasyShop, and Comet. Driving product initiatives, improvements, and performance metrics for the buyer journey in a global ecommerce setting.

Posted 7/20/2026full-timeManchester • 🇬🇧 United KingdomLead💰 £90,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in driving buyer-side product improvements within ecommerce and marketplace environments, focusing on commercial metrics such as revenue, conversion, and retention. Capable of developing actionable plans that address buyer needs and enhance the overall buying journey.

Highest-signal resume keywords

Ecommerce ExperienceBuyer-Facing Product ImprovementsCommercial JudgementNumerical AbilityScale-Up Mindset

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Product DiscoveryCheckout OptimizationPayment ProcessingFunnel MetricsOutcome Measurement

Soft Skills

High Bias For ActionDecision-Making With Incomplete InformationComfort With Calculated Risks

Industry Keywords

MarketplaceRetail TechnologyDigital ShoppingBuyer TrustApp Commerce

About the role

Key responsibilities & impact

Own the Buyer Side of OnBuy, EasyShop and Comet
Take responsibility for the buyer roadmap and ensure it is focused on the highest-impact commercial opportunities, not low-value activity.
Own the buyer-side commercial product agenda across OnBuy, EasyShop and Comet.
Act as the clear owner of buyer problems, buyer opportunities, buyer propositions and buyer-side performance improvements.
Lead all buyer-related areas with support from the wider Product function: Head of Seller Growth and Head of Brand and Product Experience.
Identify and improve the critical points in the buying journey, including search, browse, sorting, filtering, product discovery, PDPs, basket, checkout, payment, trust, app, web, repeat purchase and retention.
Drive improvements that make buyers buy more often, more easily and with greater confidence.
Take clear targets set by the CEO or Leadership Team, such as £100k in new monthly revenue by the end of the quarter or a 3% conversion-rate increase by the end of the quarter.
Present a practical short, medium and longer-term plan that explains what to build, why it matters, what number it should move and how success will be measured.
Avoid weeks of over-analysis, over-design or product theatre when a faster commercial test or launch would create more learning and more impact.
For each major initiative, explain the buyer problem, the commercial opportunity, the baseline, the target metric, the expected impact, the delivery route, the risk and the fastest sensible version to launch.

Requirements

What you’ll need

Deep ecommerce, marketplace, retail technology, app commerce or digital shopping experience.
Strong understanding of search, sort, browse, product discovery, PDPs, basket, checkout, payments, buyer trust, web and app buying behaviour.
A proven record of personally delivering buyer-facing product improvements that moved commercial metrics.
Strong commercial judgement and the ability to connect product decisions to revenue, conversion, retention and buyer behaviour.
A high bias for action and the ability to make good decisions with incomplete information.
Comfort taking calculated risks to create step-change improvement rather than hiding behind minor optimisation.
Strong numerical ability and confidence working with baselines, targets, experiments, funnel metrics and outcome measurement.
Ability to work directly with CEOs, leadership teams, Product Design and Technology without needing a large team or heavy structure.
A scale-up mindset: pace, resilience, ownership, practicality and delivery over theatre.

Benefits

Comp & perks

Company Equity- In return for helping us to grow, we’ll offer you company equity, meaning you own a piece of this business we are all working so hard to build.
25 days annual leave + Bank Holidays
1 extra day off for your Birthday
Employee Assistance Programme
Perks at Work benefit platform
Opportunities for career development and progression