MARCHON is the UK’s premium performance-lifestyle ecosystem, one brand that helps driven people train, fuel and dress for a life without limits. World-class coaching sits at the centre, backed by certified performance nutrition and movement-ready apparel, all amplified by our beacon gyms.Founded by ex-England rugby player and CEO Ollie Marchon, the company has grown from a single HQ club to a true omni-channel offering: the Train app, a fast-scaling supplement line, and physical hubs that bring the experience to life.We’re still small enough that every new teammate leaves fingerprints on the product, yet the momentum is real. Our 2026 plans are ambitious, as we make a step-change in evolving our ecosystem between training, supplements and apparel.Demand Planning & Supply Chain Managerto own the demand forecasting and inventory planning engine of the MARCHON Supplements business — ensuring we buy the right products, in the right quantities, at the right time, with a clear understanding of the risks and trade-offs involved.This is not a coordination role. The context matters: the Supplements business is moving from a primarily DTC model into omnichannel, adding wholesale, retail, and marketplace channels on top of a subscription base that already works. That transition makes demand less predictable, inventory sits in more places, and cash gets committed earlier. This role is being created specifically to own that complexity. There is no model to inherit, no process to maintain — you build the planning infrastructure from the ground up at the moment it becomes business‑critical.Key Responsibilities1. Demand PlanningBuild and maintain SKU-level demand forecasts across all channels — DTC, wholesale, Amazon, and international.Maintain and improve demand planning models using historical data and forward‑looking inputsTranslate campaigns, launches, and channel plans into realistic demand expectationsValidate and sense‑check inputs from Commercial, Marketing, and Wholesale teams, highlighting assumptions and risksSupport scenario planning (base/upside/downside) where neededContinuously update forecasts based on actual performanceOutput: A clear, structured view of expected demand by SKU, channel, and timeframe.2. Inventory Planning & Purchase Order RecommendationsOwn the inventory planning process and support purchase order decision‑making.Maintain stock cover targets, safety stock levels, and reorder points by SKUBuild recommended PO quantities and timings based on demand, lead times, and constraintsPresent clear recommendations (buy / hold / reduce) with supporting rationale and risksHighlight potential stockouts, excess stock, and cash exposure earlyBalance availability vs. working capital within defined guardrailsOutput: Clear, structured recommendations on what we should buy and why.3. Supply Chain CoordinationTrack supplier timelines, production schedules, and inbound deliveriesMaintain accurate data on lead times, MOQs, and constraintsCoordinate with suppliers, freight partners, and 3PLs to ensure smooth product flow4. Inventory Health & ReportingProvide visibility on stock position and risk across the portfolio.Track stock cover, sell‑through, and ageing inventoryReport regularly on inventory position and key risksHighlight required actions clearly and early, before problems compound5. Cross‑Functional CollaborationWork closely with the Commercial Lead on revenue plans and channel performance; Marketing and Growth on campaigns and demand drivers; and Finance on cash, margin, and inventory exposure. You are responsible for bringing structure and clarity to planning, not just executing requests.Experience & SkillsExperience in supply chain, demand planning, or inventory management within a consumer or e‑commerce businessStrong analytical skills with confidence working in Excel or dedicated planning toolsAbility to build and maintain structured models and processes from the ground upGood commercial awareness — margin, cost, and inventory basicsOrganised, detail‑oriented, and comfortable working across teamsProactive communicator who surfaces risks early and presents recommendations clearlyWhat Good Looks LikeForecasts are clear, structured, and regularly updatedInventory decisions are supported by data and rationale, not instinctRisks are identified early and communicated clearly to the Operations Lead and broader teamPlanning becomes more proactive and less reactive over timeWhat we offer22 days holiday + 8 bank holidays + your birthday offA pivotal role in shaping a global brandDirect access to the Founder for creative collaboration and rapid decision‑making.Pension contributionsStarter Pack of all things MARCHON£400 gift card each year for MARCHON Supplements & ApparelYear‑round staff discount on Supplements & ApparelFree membership to all MARCHON gymsFull access to MARCHON Online training & nutrition platform #J-18808-Ljbffr