Senior Seller Acquisition Manager; Inbound

Working at On Buy

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  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 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 Linked In, 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 Linked In, 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…