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Founding Growth Marketer

Magentic - London, England, United Kingdom

Posted Mar 8, 2026

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About this role

Founding Growth Marketer London, England, United Kingdom We're looking for our first Growth Marketer to help define how Magentic goes to market. This is a zero-to-one role: you'll work directly with the founders to determine who our ideal customers are, what messaging resonates with them, and which acquisition channels actually work. You'll be hands-on, running experiments across the full marketing stack - customer research, messaging, campaigns, and distribution - and turn early signals into repeatable growth playbooks. The goal is to build the foundations of a scalable growth engine that we can later expand with a team around you. We're pushing the boundaries of AI with next-generation agentic systems that can manage entire procurement workflows. Our mission is to make global manufacturing supply chains robust to an ever-changing world - that's a $3tn market opportunity. If that's not exciting enough - we're backed by world-class investors including Sequoia Capital, and you'd be working along a super talented team which brings together expertise from OpenAI, Meta, Revolut, NASA and McKinsey (and that's just the first 11 people!). What You'll Do - Work closely with our CEO to refine our ideal customer profile and develop clear buyer personas and use cases - Build the narrative for Magentic as a category-defining AI platform for procurement - Design and run rapid experiments across acquisition channels to build our growth playbook - Leverage modern AI and automation tools to analyse, track, report and execute - Work closely with founders, sales, and product to turn customer

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