Founding Growth Marketer

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 insights into product and messaging improvements You Might Be a Great Fit if You - Have experience driving measurable growth at an early-stage enterprise B2B startup. - Have a strong bias for execution and ownership - Are comfortable operating across the full marketing stack (customer research, messaging, campaigns, analytics). - Strong mix of analytical thinking and creative storytelling. - Have a highly experimental mindset — able to test quickly, learn, and iterate. Compensation and Benefits At Magentic, we recognise and reward the talent that drives our success. We offer: - Competitive Equity: play a real part in Magentic’s upside - A salary of £90-100k - Visa sponsorship available for this role - Enhanced parental leave - 25 days holiday exc bank holidays, plus an extra day for our Christmas shutdown - In-office lunches provided - Monthly organised socials and an additional flexible monthly social budget for team lunches, coffees, dinners, or activities with colleagues - Salary sacrifice pension and nursery schemes - Hybrid London HQ (WFH Thurs and every other Tues, with flex if you have appointments etc) - Annual team retreat—a fully-funded off-site to recharge, bond, and build Our Interview Process There are a few components because it's really important that both we and you have all the information to make a great decision at this stage of our journey. We can move quickly through these stages, so let us know if you have any timelines we need to meet. 1. Initial call (30 mins): this first step is an opportunity for you to hear more about Magentic and the role, and for us to learn more about how your experience aligns with the role. 2. Skills interview (60 mins with some prep): in this step, we'll ask you to present some of your work to us and discuss it. 3. In-person interview: for the final step, we invite you to come meet the team in-person and work alongside us! We find this is the best way for candidates to get a sense of what working at Magentic is like. This day will include a culture interview, a role-specific task and a discussion of your work with the team. Responsible AI Statement At Magentic, we are committed to developing artificial intelligence that benefits humanity. We push the limits of AI's capabilities and are dedicated to its responsible and safe deployment. Recognising the profound impact of AI, we ensure that its development is centred around human needs and safety, incorporating a wid