Senior B2B Marketing & Inbound Seller Acquisition Manager

The Senior Inbound Seller Acquisition Manager is accountable for building and scaling a global inbound seller acquisition engine, covering the full journey from awareness

• lead sign-up first activation across 21 international markets. You will own both B2B demand generation and inbound seller sign-up, ensuring we attract the right sellers through localised, high-converting experiences, while accelerating speed to first sale. This includes leading AI-powered digital marketing, trade PR, CRM, content, and funnel optimisation to deliver efficient, scalable growth.
This is a tech-savvy, data-driven role, operating across 19+ languages and leveraging AI-powered automation across LinkedIn, email, social, and PR to scale seller acquisition. You will design and run a repeatable system that delivers predictable lead and sign-up growth, balancing Cost per Lead (CPL) and Cost per Acquisition (CPA) while driving seller quality and lead scoring. This is a critical role that owns the front door of the OnBuy Flywheel, driving continuous storytelling of our growth story and converting that into high-quality inbound seller demand. You will work closely across OnBuy to accelerate speed to first sale, ensuring outbound acquisition translates into real GMV and contribution., Inbound Seller Demand Strategy Own the Inbound Seller Demand strategy, delivering a scalable pipeline of high-quality inbound sellers Define clear Ideal Customer Profile (ICP), targeting and channel strategy to shift from volume-led to quality-led acquisition Align demand generation to GMV, contribution and seller quality outcomes Establish a clear roadmap to scale seller acquisition efficiently across markets Global Inbound Funnel Ownership Design and operate a repeatable global acquisition system with local market nuance Deliver predictable growth in leads, sign-ups, and activation across all markets Establish a clear operating cadence: experimentation, reporting, forecasting, and optimisation by country Sell with OnBuy Experience Own each country's Sell with OnBuy experience: localisation (language, tone), value proposition, proof points, FAQs, pricing clarity, and UX Ensure every market delivers a trusted, clear, and high-converting, automated seller journey Maintain compliance with local norms, claims, and messaging requirements Partner with Brand to ensure consistency in tone, positioning, and storytelling B2B Digital Marketing & Demand Generation Own and scale the B2B digital marketing engine to drive high-intent inbound seller demand Deploy AI-powered automation across LinkedIn, email marketing, social media, and content Build and optimise conversion-focused landing pages and content journeys Implement structured test-and-learn frameworks (CRO, A/B testing, attribution) CRM, Email & Marketing Automation Build a high-performing global CRM engine with localised journeys and messaging Design multi-touch nurture journeys for cold, warm, and hot leads Implement lead scoring, routing, and SLA alignment with Seller Onboarding / BD teams Manage deliverability, list health, cadence, and continuous optimisation of messaging and CTAs Country-Level Trade PR & Communications Establish trade PR programs across 21 markets to drive awareness, trust, and inbound demand Build and maintain journalist networks across commerce, retail, SME, and tech press Deliver a repeatable trade PR cadence: growth stories, seller success, product launches, partnerships Track trade PR performance and its impact on funnel metrics and seller intent Inbound Funnel Performance & Conversion Own performance across the inbound funnel: Traffic
• Lead Sign-Up First Sale
Identify drop-offs and prioritise improvements with clear ROI cases Drive improvements in conversion rates, cost efficiency, and speed to first sale Run structured CRO programmes including A/B and multivariate testing Data, Insight & Performance Management Define and own country-level metrics to improve performance tracking and progression Build dashboards, reporting, and forecasting models to track performance Use AI-driven analytics and cohort analysis to refine acquisition strategy Make data-led decisions on budget allocation by channel and country

Proven experience in B2B demand generation, growth, or lead generation across multiple markets Strong ownership of inbound funnels, CRM, and conversion optimisation Experience scaling digital marketing using AI-powered tools and automation Strong PR and content capability, including localisation across markets Deep understanding of CPL, CPA, attribution, and ROI optimisation Data-led decision making with ability to build dashboards and forecasts Experience in marketplace, eCommerce, or SaaS environments preferred Strong cross-functional collaboration Comfortable operating in ambiguity and scale-up environments

Working at OnBuy OnBuy is an online marketplace on a mission of being the best choice for every customer, everywhere. We have recently been named one of the UK's fastest-growing tech companies in the Sunday Times 100 Tech list. We are all laser-focused on our mission and understand the huge joint effort needed to succeed. We are a team of driven and motivated people who thrive when working at pace. To succeed at OnBuy you need to take charge and fully own your responsibilities, rolling your sleeves up when needed to get it done. Working at OnBuy you are surrounded by so much opportunity, but you must possess the ability to stay focused and prioritise ruthlessly. Most importantly, you will thrive in an ever-changing environment as we are constantly evolving. At OnBuy, you're not just a number or another cog in a machine. We are creating something really special, and you have the opportunity to affect meaningful change and have your voice heard. We are a close team that has the opportunity to learn and grow as OnBuy evolves.

The salary on offer for this role is up to £75,000 depending on experience. 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 Hybrid Working This role operates in a hybrid setup with our office space in Media City Manchester or Central Bournemouth's offices, with parking and close to public transport. Our Commitment 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. #J-18808-Ljbffr