Head of Seller Demand – B2B Marketing

OnBuy

. Own the top-of-funnel system: Awareness → Interest → Lead → Sign-Up .

Posted 6/18/2026full-timeManchester • 🇬🇧 United KingdomLead💰 £90,000 per yearWebsite

About the role

Key responsibilities & impact

Own the top-of-funnel system: Awareness → Interest → Lead → Sign-Up
Deliver predictable, scalable seller demand across all markets
Balance volume and quality of inbound sellers
Build systems that scale seller acquisition - not manual processes that require ongoing effort.
Own global trade PR across 21+ markets
Continuous narrative: growth, sellers, partnerships
Strong journalist relationships across commerce, retail, SME & tech
Own LinkedIn and social as acquisition channels
Turn brand storytelling into measurable seller demand
Build and scale data-led acquisition channels, including use of external lead data sources
Source and activate high-quality seller audiences through:
Third-party data providers
Market intelligence and prospect datasets
Design and execute CRM-led outreach strategies at scale
Combine paid data, owned CRM, and organic channels (PR, social) into a unified demand engine
Continuously optimise:
Data quality, Targeting precision, Conversion performance and ROI from sources
Treat data and distribution as core growth levers, not support channels.
Own global CRM & email marketing engine
Design multi-touch journeys:
Cold → Warm → Hot
Implement:
Lead scoring and qualification frameworks, Nurture sequences/journeys, Routing into Seller and onboarding teams and Drive conversion from interest → sign-up
Own all /sell/ website experiences across:
21 OnBuy.com markets
21 EasyShop.com markets
Comet.co.uk
OnCommerce.com
Leverage the full OnCommerce Group brand portfolio to maximise reach, credibility, and seller acquisition across markets.
Responsible for working with Brand team to drive:
Value proposition clarity, Messaging and localisatio, UX and conversion rate (CVR)
Treat this as a performance product, continuously tested and optimised
Senior Partnerships Manager reports into you
You own partner output (pipeline), not execution
Accountable for:
a. Partner-sourced leads
b. Partner-sourced sign-ups
*You define:*
a. Partner strategy (who, why, value exchange)
b. Targets (pipeline, partners, markets)
c. Prioritisation (highest impact opportunities)
The Senior Partnerships Manager executes:
a. Events, webinars and partner activations
b. Co-marketing and distribution strategies
Own performance across:
Traffic → Lead → Sign-Up
Identify and fix drop-offs
Drive improvements in:
Conversion rate, Lead quality and Cost efficiency
Own global dashboards:
Leads
Sign-ups
Channel performance
Deliver predictable forecasts (3 / 6 / 12 months)
Make ongoing decisions on:
Channel mix, Budget allocation, Market prioritisation
Build and scale the B2B marketing function
Establish clear separation from B2C marketing
Define structure across:
PR, CRM, Content, Lifecycle, Hire and scale team as performance proves out.

Requirements

What you’ll need

Proven experience in B2B demand generation, growth, or lead generation across multiple markets
Strong ownership of inbound funnels, CRM, and conversion optimization
Strong ownership of end-to-end acquisition funnel (lead → sign-up)
Strong PR and content capability, including localisation across markets
Experience working with third-party data providers and outbound/inbound data-driven acquisition models
Strong understanding of data quality, enrichment, and targeting strategies
Experience scaling CRM-led acquisition beyond owned audiences
Experience building repeatable, scalable growth systems, including AI-driven growth systems
Strong commercial understanding of CPL, CPA, ROI, and conversion mechanics
Data-led decision making with ability to build dashboards and forecasts
Experience driving high-volume inbound acquisition primarily through LinkedIn and email marketing
Experience owning and optimising website conversion journeys, including messaging, UX, and sign-up flow from lead to sign-up
Experience owning mass B2B communications, including press releases, promotions, and lifecycle messaging to drive sign-ups at scale
Eligible to work in the United Kingdom
Background in marketplace, SaaS or eCommerce highly desirable
Experience running partner co-marketing and referral acquisition programs with tracking and playbooks is a plus
Experience owning event lead generation, including trade shows, business cases, stand execution, and lead capture is a plus
Comfortable operating in high-volume, data-led acquisition environments where speed and scale matter.

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

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

B2B demand generationlead generationCRMconversion optimizationdata qualitytargeting strategiesemail marketingwebsite conversion journeysAI-driven growth systemsdashboards

Soft Skills

ownershipcommercial understandingdata-led decision makinglocalisationstrong PR capabilitycommunicationteam buildingoptimisationstrategic thinkingperformance management