Cyber Security Consultant - Senior

Freelancer Opportunity

Job title: Cyber Security Consultant

Job location: Brussels, Belgium

Job duration: 2025-12-15 to 2026-06-30

Job weekly hours: 40 hrs./week

Are you passionate about AI or cybersecurity. You love working with high profile teams with a sure taste for challenge and variety? You dream to join a fast-growing company with start-up mentality? Eager to learn continuously? Join Proximus Ada.

Within this Proximus newly created center of excellence for AI and Cybersecurity, the mission of the Security Management and CSIRT teams is to protect Proximus, its customers, its business, its operations and reputation against external and internal threats. You will be fascinated by a highly dynamic environment, the strong collaboration and some deep technical aspects.

Within the Security Management team, we are looking for a Senior ISO 27001 Lead Implementer to reinforce the team. As an ISO 27001 Lead Implementer with a focus on NIS 2 Directive compliance, you build strong relationships with the teams, leading and guiding them through cybersecurity assessments, remediations and audit efforts to achieve NIS2 compliance.

Your Role:

Provide practical guidance on both technical and non-technical aspects of cybersecurity.

Provide coaching to teams on how to implement ISO27001 and NIS2 cybersecurity requirements.

Create overarching cybersecurity guidelines, procedures, and standards, and assist teams with their implementation documentation.

Conduct regular risk assessments and audits to ensure continuous compliance and improvement.

Conduct high-level architecture review.

Lead and support teams during the external audit linked to the ISO 27001 certification track.

Provide training to staff on ISO27001 and NIS2

Proficient in explaining risks to management, ensuring they fully understand the implications, especially when considering risk acceptance.

Stay updated with the evolving cybersecurity threat landscape and adjust security measures accordingly.

Understand and apply the legal measures introduced by the NIS 2 Directive.

Your Profile:

Experienced in translating an ISO27001 ISMS into practice for both technical teams and management.

Excellent communication and stakeholder management abilities.

Can operate with a great deal of autonomy, results-oriented and able to deliver within preset deadlines.

Proven experience in implementing and maintaining ISO 27001:2022 certification.

Bachelor’s Bachelor or a masters’ degree in cyber security or computer science.

Minimum of 5 years in an information security role, with a focus on ISMS and EU cybersecurity directives.

Certified ISO 27001:2022 Lead Implementer and/or Lead Auditor.

In-depth knowledge of the NIS 2 Directive and its implications for cybersecurity and data protection.

Previous experience in telco domain is highly recommended.

Languages and Location:

Fluent in English, Dutch and/or French is a plus.

Based in Belgium hybrid 2 days/week at the office.

Apply now and start your journey with Team Possible! We want to get to know you.

After your application, we will verify your profile and get back to you within 3

working days.

If you’re successful, you can expect the following steps:

An initial conversation with our recruiter - Swati Kumari

Interview with the Hiring Manager and the team.

Final decision

About Proximus

We are Team Possible turning tech into opportunities.

We are driven by four core pillars: "I care," "I make a difference," "I radically simplify," and "I embrace the future". This means you'll join a team that genuinely cares for customers and colleagues, is empowered to make a real impact, strives to radically simplify complex challenges, and is always looking ahead to embrace the future of technology. We believe in an inclusive and safe environment where everyone can thrive, offering extensive career development resources, including access to over 5,000 training modules and a minimum of 5 days of training per year, to help you continuously learn, grow, and tackle bold challenges with us.