Change Communications Lead in Global Team, E-invoicing (f / m / x)

Mars (External) Open · verified Sep 10, 2026

Hybrid GSW-Mars Global Services Full-time Senior Communications

Senior Communications role at Mars (External). GSW-Mars Global Services · full-time.

Role brief

Growth Roles summary, based on the employer's posting.

What you'll do

You'll own the change and communications plan for the global e-invoicing transformation
You'll assess stakeholder impacts and turn findings into focused messaging and training plans
You'll create audience-specific content about programme, process and system changes
You'll prepare leadership updates and stakeholder materials while keeping the transformation narrative consistent
You'll track engagement, gather feedback and advise programme leaders on communication effectiveness

What you bring

You have at least five years managing change communications across complex operational transformation programmes
You can independently handle impact assessment, stakeholder mapping and communication planning
You build relationships and influence stakeholders across organizational levels
You turn complex changes into clear messages across email, SharePoint, video and other digital channels
You work fluently in English and stay organized through ambiguity, shifting priorities and multiple deadlines

Who this fits

This role suits an experienced change communications professional who can work independently with global teams and influence suppliers, customers, segment operations and Mars Global Services stakeholders. You should be comfortable with complex, evolving transformation work and supporting adoption. The position is hybrid in Warsaw, Poland, with English required for written and spoken communication.

From the employer

Job Description:

Change Communications Lead in Global Team, E-invoicing (f/m/x)

in Mars Global Service

Finance Operations Department

Location: Warsaw

Hybrid working

* Fully virtual recruitment experience *

We're looking for an experienced Change Communications Lead to independently drive change communications for a major global finance e-invoicing transformation programme. This role will shape and deliver the end-to-end change communications strategy, supporting stakeholders across Suppliers, Customers, Segment Operations and MGS (Mars Global Services) teams. The successful candidate will develop a clear, coordinated communications, change and training approach that enables readiness, implementation, adoption and business continuity throughout the programme.

What would be your key responsibilities?

Developing and executing the end-to-end change and communications strategy to support programme readiness, implementation, adoption, and business continuity.
Conducting stakeholder and audience impact assessments and translating insights into targeted communication and training plans.
Creating clear, engaging, and audience-specific communications that explain complex programme, process, and system changes.
Defining and maintaining a consistent narrative for the e-invoicing transformation, aligned with broader MGS and MGS Finance strategic messaging.
Preparing leadership communications, programme updates, and key stakeholder materials to ensure ongoing engagement and alignment.
Building strong relationships across the programme, including PMO, project leads, Segment and MGS stakeholders, and Corporate Affairs teams.
Acting as the primary point of contact for all change and communications activities related to the programme.
Supporting end-user adoption through targeted communications, engagement activities, and feedback mechanisms.
Monitoring communication effectiveness and stakeholder engagement, providing regular insights, reporting, and recommendations to programme leadership

What are we looking for?

5+ years of experience in managing change and communications for multiple, complex operational transformation programmes
Strong expertise in change impact assessments, stakeholder mapping and communication planning, with the ability to work independently within a project team.
Stakeholder management and relationship-building skills, with the confidence to engage and influence at all levels of the organization.
Ability to translate complex programme, process and system changes into clear, relevant and engaging messages for different audiences.
Experience creating effective multi-channel communications, including emails, SharePoint sites, videos and other digital content.
Proactive, curious and solutions-oriented mindset.
Resilient and comfortable navigating ambiguity, complexity and evolving project priorities.
Strong organizational and planning skills, with the ability to manage multiple workstreams and deadlines.
Fluent English, both written and spoken.

Nice to have:

Experience leading communications and managing change for finance, technology, process transformation programmes within a complex global organization.
Experience with e-invoicing or finance transformation initiatives.
Experience working across global teams and multiple regions.

What can you expect from Mars?

Permanent contract of employment as from the start.
Attractive financial conditions including Bonuses.
We will also look after your safety and well-being by offering you rich benefits package including life insurance, Employee Assistance Program fully covered by Mars, and private medical care, MultiBenefit Program and lunch card.
Extra savings scheme to support You in long perspective.
Support in career building through personalized development plan.
On-line shop with attractive discounts on our products that Your family and friend are going to love.
Possibility to participate in volunteering initiatives during working hours.
A modern and pet friendly office in the City Center (Zlote Tarasy building).

Apply now and upload you profile in English

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