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Change Manager Business (Senior) - Sibelga

Customer: Sibelga Emile Jacqmainlaan 96 1000 Brussel Belgique
Dates: 2026-12-01 — 2027-11-30
Arrangements: 100% work regime; 220 days per person. Assignment split: 70% strategic project change delivery and 30% Change Office support and change culture implementation. Extension period stated: 72 months. Remote or hybrid arrangements not specified.
Apply before: 2026-10-26

Description

Sibelga seeks a Senior Business Change Manager within its People & Tech Solutions environment. The department helps the company and employees achieve objectives aligned with its strategy. Its People Strategy & Change Office anticipates internal client needs and coordinates strategic activities. The assignment combines 70% change delivery on strategic projects with 30% Change Office support and change culture implementation.

The consultant will support and coach team, programme and project managers on the change aspects of their projects. Projects include HRIS implementation and digital tools for technical and field-based employees. They also include the creation, implementation and positioning of a new department and team. Change Office implementation and the development of an organisational change culture are further areas of support.

The role covers change narratives, stakeholder mapping, impact assessments and change planning. Delivery includes communication materials, training, workshops, events and stakeholder engagement. The consultant will define and measure adoption and adapt the approach using Agile principles. In partnership with the Corporate Change Manager, the consultant will help define and implement an action plan for a sustainable change culture.

Top Reasons to Apply
Shape strategic transformation
★★★★★
Build change culture
★★★★★
Develop Change Office
★★★★★
Deliver HRIS change
★★★★★
Engage diverse employee groups
★★★★★
Responsibilities
Coach project leaders
Support HRIS implementation
Support field-tool implementation
Support department creation/positioning
Implement Change Office/culture
Develop project/change narratives
Identify/map impacted stakeholders
Assess stakeholder impacts/changes
Must Have
Current/past Prosci certification
Fluent French and Dutch
Public regulated environment experience
Three different sectors experience
Five years change management
Seven years change management
New department change experience
Blue/white collar change experience
Nice to Have
Fluent English communication
Excel / Power BI
Human resources environment experience
Business process optimization experience
Change Office implementation experience
Complex project resistance management
Energy sector experience
Change management methodologies experience
Project management experience

Detailed Responsibilities and Skills

Additional Responsibilities

  • Define change approach/activities
  • Support change activity implementation
  • Create engaging communication materials
  • Develop/deliver training initiatives
  • Organise/facilitate workshops/events
  • Support stakeholder engagement/management
  • Define/measure adoption levels
  • Adapt change approach/Agile delivery
  • Define/implement cultural action plans

General skills — mandatory

  • Current or past AKDAR / PROSCI certification; the source wording does not identify a specific credential.
  • Fluency in both French and Dutch.
  • Proven experience in a strong public regulated environment.
  • Proven experience in at least three different sectors.
  • At least five years of senior change management experience; separately listed alongside a seven-year requirement.
  • At least seven years of senior change management experience; separately listed alongside a five-year requirement.
  • Proven change management experience supporting implementation and positioning of a new department and team.
  • Proven change management experience with operator/blue-collar profiles and digital/administrative white-collar profiles.
  • Proven experience with multilevel reporting.
  • Proven change management experience involving an HRIS implementation.

General skills and methodologies — preferred

  • Fluency in English.
  • Proven experience in a Human Resources environment.
  • Proven experience in business process optimization.
  • Proven experience establishing and implementing a Change Office.
  • Proven experience managing resistance to change within complex projects.
  • Proven experience in the energy sector.
  • Proven experience with methodologies such as ADKAR (Prosci), Kotter’s model and Lewin’s model.
  • Proven experience with project management.

Tools — preferred

  • Knowledge of Excel / Power BI.

Assignment activities — expected delivery

  • The Senior Business Change Officer will support and coach team, programme and project managers in managing the change aspects of their projects.
  • Implementation of digital tools such as an HRIS (Human Resources Information System);
  • Implementation of digital tools for technical and field-based employees;
  • Creation, implementation and positioning of a new department and team;
  • Implementation of the Change Office and development of a change culture within the organisation.
  • Develop and articulate the project story and change narrative;
  • Identify and map the stakeholders impacted by the project;
  • Assess the impact of the project on the different stakeholder groups and identify the changes they will experience;
  • Define a change management plan, including the appropriate approach and activities required to build engagement and adoption;
  • Support the implementation of change activities, including:
  • Creating clear and engaging communication materials;
  • Developing and delivering training initiatives;
  • Organising, facilitating and leading workshops and events;
  • Supporting stakeholder engagement and stakeholder management;
  • Define and measure the level of adoption;
  • Adapt the change approach where necessary and work according to Agile principles.
  • The consultant will also support the Corporate Change Manager in defining and implementing the action plan aimed at further embedding a sustainable change culture across the organisation.