(Immediate Start) Demand Planner (3-Month FTC) | Fast-Growth Drinks Brand | London

• (Immediate Start) Demand Planner (3-Month FTC) | Fast-Growth Drinks Brand | London
• The Client

We're partnering with an ambitious, high-growth drinks brand that has quickly established itself as a leader within its category.

Following a period of exceptional growth, the business is entering an exciting stage of expansion, with increasing demand across both UK retail and e-commerce channels.

To support this growth, they're looking to bring in an experienced Demand Planner on an initial three-month fixed-term contract.

This is an immediate requirement, with the successful candidate playing a key role in ensuring accurate forecasting, maintaining optimal stock levels and supporting the wider Operations and Supply Chain teams during a busy trading period.

This is a fantastic opportunity to join a collaborative, fast-paced business where you'll have genuine ownership from day one and make an immediate impact.

The Role

Reporting into the Supply Chain team, you'll take ownership of the demand planning process, ensuring accurate sales forecasts are translated into effective inventory plans.

Working closely with Commercial, Finance, Operations and external manufacturing partners, you'll help balance customer demand with supply constraints, minimising stock risk while maintaining excellent service levels.

This role would suit someone who enjoys working with data, spotting trends and collaborating across multiple functions to drive informed decision-making.

You'll be joining at a critical point for the business, making this an excellent opportunity to add value from the outset.

Key Responsibilities

• Own and maintain rolling demand forecasts across multiple sales channels, using historical data, commercial insight and market trends.
• Analyse sales performance and forecast accuracy, identifying risks, opportunities and recommending actions to improve planning.
• Work closely with Sales, Finance and Operations teams to incorporate promotional activity, new product launches and customer forecasts into demand plans.
• Partner with manufacturing and supply planning teams to ensure inventory levels support customer demand while minimising excess stock.
• Monitor stock availability and inventory health, proactively identifying potential shortages or overstocks and recommending corrective actions.
• Produce regular demand planning and inventory reports for key stakeholders, highlighting key trends, risks and performance metrics.
• Support the monthly S&OP process, ensuring forecast assumptions are clearly communicated across the business.
• Continuously improve forecasting processes, reporting and planning tools to enhance accuracy and operational efficiency.
• What the client would like to see (Essential)
• Previous experience in a Demand Planning, Supply Planning or Inventory Planning role, ideally within FMCG, consumer goods, food & drink, beauty or health & wellness.
• Strong analytical skills with advanced Excel experience and confidence interpreting large datasets.
• Experience producing demand forecasts and working closely with cross-functional stakeholders.
• Excellent attention to detail and the ability to manage multiple priorities in a fast-paced environment.
• A proactive, solutions-focused approach with the confidence to challenge assumptions using data.
• Strong communication skills and the ability to build effective working relationships across commercial and operational teams.
• Available to start immediately or at short notice.
• What we would like to see (Bonus)
• Experience using ERP systems such as Net Suite, SAP, Microsoft Dynamics, Unleashed or similar.
• Previous exposure to S&OP or Integrated Business Planning (IBP) processes.
• Experience working with retailers, wholesalers or D2C sales channels.
• Knowledge of forecasting tools or demand planning software.
• Experience working within a high-growth consumer or FMCG business.
• Location
• : London (Hybrid)
• Contract
• : 3-Month Fixed-Term Contract (Immediate Start)
• Salary

At Harmonic, we are dedicated to fostering an inclusive and equitable workplace.

We actively welcome applications from individuals of all backgrounds and assure you that every candidate will be thoughtfully considered for the roles we represent, without regard to race, religion, gender expression, disability, or sexual orientation.