Organisational Change Manager – S/4 HANA Programme

Gallagher; Hamilton; On-site; NZD 90,000 - 130,000; Full time

Job summary

Gallagher, a global leader in solutions, is seeking an Organisational Change Manager for its S/4 HANA transformation programme. This pivotal role involves leading the change management strategy, guiding cross-functional stakeholders through transitions, and ensuring successful adoption of new systems. Join a company that values innovation and offers a supportive work environment.

Benefits

Flexible working + free on-site parking

Life & Disability Insurance

Staff discounts through the Boost App

Vibrant culture with team events

Global career pathways

Qualifications

• Experience in leading change in large-scale global programmes, ideally with SAP S/4 HANA.
• Familiarity with change frameworks like ADKAR, Prosci, or Kotter.
• Ability to manage multiple stakeholders effectively across various levels.

Responsibilities

• Lead the change management strategy for the S/4 HANA transformation.
• Guide teams through transitions to new systems and processes.
• Deliver tailored communications, training initiatives, and readiness assessments.

Skills

Change Management

Stakeholder Management

Communications

Business Readiness

Facilitation

Storytelling

Job description

About Gallagher

Gallagher is a global leader in high-tech solutions, renowned for innovation and excellence. With a significant market presence in over 160 countries, we protect some of the world's highest security environments and agricultural businesses. We are now embarking on a company-wide S/4 HANA transformation that will shape how we operate and grow into the future. As we build our transformation team, we're seeking an Organisational Change Manager to lead the change process and drive successful adoption across the business.

The Opportunity

A pivotal role within our global S/4 HANA transformation programme, the Organisational Change Manager will lead the development and execution of our change management strategy. You'll play a key part in guiding individuals and teams through the transition to new systems and processes, embedding change and ensuring long-term adoption across the business.

Working cross-functionally with stakeholders – including ELT, functional leads, change champions, and external partners – you’ll deliver tailored communications, change plans, training initiatives, and readiness assessments, all aligned to the principles of “out of the box” implementation.

The Fit

Success in this role requires more than just change expertise — it’s about being a trusted advisor, an empathetic communicator, and a strategic thinker who can bring people on the journey. You'll be working in a dynamic, fast-paced programme with multiple workstreams and diverse stakeholders, so your ability to navigate complexity and inspire confidence will be key.

We’re looking for someone with a proven track record in managing change across large-scale, enterprise-level ERP transformations. To succeed, you’ll need:

• Demonstrated experience leading change in global programmes (ideally involving SAP S/4 HANA)
• Strong stakeholder management and influencing skills across all levels
• Hands-on experience with change planning, communications, and business readiness
• Familiarity with structured change frameworks (e.g. ADKAR, Prosci, Kotter)
• A confident, adaptable, and collaborative style with strong facilitation and storytelling skills
  
  

Why Gallagher?

At Gallagher, we foster a supportive and family-friendly work environment where innovation and people come first. We offer:

• Flexible working + free on-site parking
• Life & Disability Insurance
• Staff discounts through the Boost App
• A vibrant culture with team events, learning sessions + great coffee
• Global career pathways and a highly respected NZ brand
  
  

Make an impact that matters.

Play a key role in shaping how Gallagher works tomorrow. Apply now to join #TeamGallagher.

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