A job at Proximus? You’ll find that everything revolves around the idea ‘Think Possible’. This means: we always assume that something is possible, even if it seems impossible. Well, especially so, actually. Call it a way of thinking that involves being open to a world of digital solutions that make our lives easier. And our way of working smarter.
The mission of MWingz is to build, operate and secure – in the most efficient way - the shared mobile networks Orange Belgium and Proximus trust us with, so people and businesses can rely on safe, strong and future-ready connectivity.
We operate critical, shared mobile network assets in a fast-evolving threat landscape and under increasing Belgian/EU regulatory expectations for telecom and critical infrastructure, In order to strengthen and centralize security leadership and clear, risk based decision making across IT and Operating Technology (OT), we open a new role as CHIEF INFORMATION SECURITY OFFICER (CISO)
Your mission
As CISO, you report to the Managing Director and are responsible for protecting MWingz’ information assets, IT services and telecom network operations. You define and govern the security strategy across IT and OT, strengthen network resilience, and manage cybersecurity and AI-related risks in a regulated telecom environment. You enhance the overall cybersecurity maturity,and achieve and maintain ISO 27001 certification.
Key responsibilities
1. Define and execute the security strategy, policies, procedures and related roadmap.
2. Lead enterprise, technical, and AI/automation risk management and policy management
3. Oversee IT security domains: IAM, cloud/SaaS, vulnerability management, and secure SDLC
4. Define and govern security for telecom RAN, RAN-OSS, and vendor-managed systems
5. Strengthen security-by-design and resilience through BCP/DR planning, testing, and operational KPIs
6. Lead (cyber) crisis preparedness and coordination, including executive escalation, crisis playbooks, communication interfaces, and regular exercises involving MWingz, operators, critical suppliers and relevant authorities.
7. Ensure organisation is in place for cyber-incident detection and response, including SOC/NOC collaboration
8. Manage third-party and supply chain security, including vendor requirements and audits.
9. Supervise the application and improvement of the Information Security Management System (ISMS)
10. Ensure compliance with Belgian/EU regulations, customer obligations and reporting to authorities
11. Promote a strong security culture through awareness and role-based training
12. Ensure security-by-design and risk-based decision-making across transformation programs, major network evolutions, new platforms, and sourcing changes
13. Define and operate the security governance model of the joint venture, including clear decision-making, risk acceptance, escalation and reporting mechanisms with MWingz leadership, shareholders/operators, and relevant authorities
14. Define and report security KPIs/KRIs, risk exposure, compliance status, major incidents, and remediation progress to executive management and governance bodies
Your Profile
Experience & profile
15. 10+ years in cybersecurity or IT risk leadership
16. Strong experience in telecom, critical infrastructure, or highly regulated environments
17. Solid knowledge of security architecture, IAM/PAM, network security, and operations
18. Solid understanding of telecom networks (especially Radio Access Network) and large-scale infrastructure security
19. Proven leadership across engineering and operations teams
20. Understanding of AI and automation risks and governance
21. Relevant certifications ( CISSP, CISM, ISO 27001) are a plus
22. Strong executive communication skills and stakeholder management capabilities
23. You are at least bi-lingual : English and Dutch or French
Key interfaces
MWingz Board, CEO/MD, Orange Belgium & Proximus Security counterparts, risk and internal/external audit team, critical suppliers & managed service providers, Network Operations, IT, Engineering, Procurement, Legal/Privacy, vendors, and regulators.
Interested?
Please send your motivation letter and CV to .
Within MWingz, we make every effort to be a “great place to work” for our approximately 240 colleagues. In our diverse and caring organization, you can use your talents to the full, develop yourself further and you will find yourself in a culture where you can recharge together with colleagues, and be genuinely proud of our common goal of value creation for our clients. We offer a flexible and easily accessible working environment in the heart of Brussels, with an attractive remuneration package and numerous contemporary and personalized benefits.
What do we offer you?
24. We are 100% Belgian. So we make decisions in three languages. And all at the same time if you like!
25. We are open to everyone: M, W, X, and in fact all the other letters of the alphabet.
26. We encourage personal growth. At the Proximus Academy, you won't even want to miss a session.
27. We are, of course, committed to sustainability. What else did you think?
28. We firmly believe that working together is important, but that having fun together is even more so. That is why we regularly organise fun activities. (Please let us know if you have a talent for playing Santa Claus!)
29. We believe in responsibility. Also in yours. For example, you can take it to launch your own initiatives.
30. We put our customers first. And because we are all customers somewhere, you already know what that means. That’s good.
31. And the ever-important work-life balance? We keep it in the right place.
Naturally we have a competitive salary package for you. Click (or apply) to discover what else we offer.