Demand Planning Manager

Gallagher; Hamilton; On-site; Confidential; Full time

Job summary

Gallagher seeks an experienced demand planning leader to head our global planning function, strengthening forecasting accuracy and building planning capability across our international operations. Reporting to the GM Supply Chain, you will lead the central demand planning team, collaborate with regional teams and drive SAP IBP adoption, process improvements and cross-functional alignment.

You will develop leadership capability while remaining closely involved in the technical and operational

Qualifications

• At least five years' experience in demand planning with forecasting and cross-functional collaboration.
• Strong analytical capability including statistical forecasting and bias analysis.
• Experience in complex manufacturing/tech or supply chain environments, ideally with exposure to international markets.
• Tertiary qualification in Supply Chain Management or related discipline.
• Ability to influence stakeholders and drive consensus across different business functions.
• Experience supporting system implementations or major process improvements.

Responsibilities

• Lead the global demand planning function and central planning team.
• Strengthen forecasting accuracy and develop global planning standards.
• Support SAP IBP implementation and drive process improvements.
• Collaborate with regional planning teams and stakeholders across Sales, Product, Marketing, Finance and Operations.
• Influence strategy and drive continuous improvement across international markets.

Skills

Demand planning

Forecasting

Stakeholder management

Advanced Excel

Power BI

S&OP

Change management

Education

Supply Chain qualification

Tools

SAP IBP

Power BI

Excel

ERP systems

Job description

The Opportunity

We're looking for an experienced demand planning professional to lead and strengthen our global demand planning function, improving forecasting accuracy, building planning capability and supporting informed business decisions across Gallagher's international operations.

Reporting to the GM Supply Chain, you'll lead our central demand planning team and work closely with regional planning teams and stakeholders across Sales, Product, Marketing, Finance and Operations. You'll take ownership of our global demand planning processes, combining hands-on forecasting and analysis with the opportunity to influence strategy, improve processes and drive consistency across our international markets.

A key focus of this role will be strengthening forecasting performance, developing our global planning standards and supporting the business requirements and adoption of our proposed SAP Integrated Business Planning (IBP) implementation.

This is an opportunity for an established demand planning leader or an experienced senior planner ready to take the next step in their career. You'll have the opportunity to develop your leadership capability while remaining closely involved in the technical and operational aspects of demand planning.

The Fit

You'll be an experienced demand planning professional who enjoys getting into the detail, understanding the numbers and turning complex information into meaningful business insights. You're equally comfortable working independently, collaborating across teams and influencing stakeholders to achieve better planning outcomes.

You may already be leading a demand planning function, or perhaps you're a senior planner who's ready to step into a formal leadership role. Either way, you'll bring strong technical capability, a collaborative approach and the confidence to take ownership, challenge assumptions and drive continuous improvement.

We're Looking For Someone With

• At least five years' experience in demand planning, with strong exposure to forecasting processes, demand reviews and cross-functional collaboration.
• Strong analytical capability, including statistical forecasting, demand modelling, forecast accuracy and bias analysis.
• Experience working within complex manufacturing, technology or supply chain environments, ideally with exposure to international markets.
• A tertiary qualification in Supply Chain Management or a related discipline.
• The ability to influence stakeholders, facilitate discussions and build consensus across different business functions.
• Experience improving demand planning processes, systems and forecasting practices.
• Strong knowledge of ERP and enterprise planning systems, with advanced Excel and Power BI capability.
• An understanding of Sales & Operations Planning (S&OP) and how demand forecasting supports broader business decisions.
• Experience supporting system implementations, process improvements or change initiatives.
• SAP planning knowledge, particularly SAP IBP Demand or APO-DP, would be advantageous.
• A proactive, collaborative approach with strong communication skills and a genuine interest in developing others.

If you're passionate about demand planning, enjoy solving complex problems and are ready to take ownership of a global planning function, we'd love to hear from you.

Whether you're an established leader or looking to take that next step, this is an opportunity to grow your career and make a meaningful impact within #TeamGallagher.