Demand Planning Manager

In a world where old school soft drinks, unnecessary food waste and outdated business practices are a thing of the past, DASH is leading the healthy hydration revolution. We infuse our super tasty waters with real wonky fruit. That’s the bent, crushed, misshapen fruit that supermarkets say no to. No sugar, no sweeteners, no worries. DASH launched in 2017 and has quickly become the market leading brand in a category that has grown over 60% YoY in the UK. DASH has an industry-leading DTC platform, and in 2026 we will sell over 56 million cans in 20+ international markets with notable retailers including: Sainsbury’s, Tesco, Waitrose, Ocado and M&S. We are incredibly proud to say that we are a Certified B Corporation. We always intend to use our business as a force for good, and now it’s official. Job role: DASH Water’s Demand Planning Manager is responsible for setting up and running an accurate demand forecast across all channels and markets, enabling the business to plan production, inventory and cash around a single agreed number. This is achieved by combining statistical forecasting with sales, marketing and finance input, leading the monthly demand review, and partnering closely with the Supply Planning Manager and Head of Finance Planning & Analysis. Demand Planning • Responsible for leading the timely generation of DASH's demand plan: build, own and run the tool. • Work with the sales, brand and finance teams to develop long (12-36 month) and short (0-12 month) range forecasts utilising historical data, market trends, and sales inputs and range reviews. • Own the short-term (0-4/0-8 week) forecast, incorporating customer and warehouse level forecasts, promotional planning. Review weekly with the Sales team to keep near-term accuracy as tight as possible. • Forecast demand by international market and packaging format/pack size, partnering with distributor and local sales teams to build visibility in export markets where sell-through data is limited. • Monitor and adjust forecasts in response to forecast accuracy, account specific deals, New Product Development (NPD) and shifts in pack and flavour splits. • Measure forecast accuracy and implement improvements to enhance predictability. Customer Supply Chain relationship • Lead updates and actions with the Sales team and customers when relevant - communicating stock availability clearly and agreeing prioritisation/next steps. • Own the relationship with customer’s operational contacts. • Work with customers to get their forecasts and incorporate into demand reviews. Activity & Promotional Planning • Support the Activity Management Review (led by the Supply Planning Manager), providing the customer forecast and promotional volume basis for each review cycle. • Work with Sales and Brand teams to build and maintain a promotional forecasting library, capturing uplift assumptions by account and mechanic. S&OP & Business Planning • Support the Head of Operations with the…