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Open nowFirst seen 68 days ago

Freelance Senior Information Security Consultant

CRANIUM13 open roles

Where
Zaventem, Vlaams Gewest, Belgium
Work mode
Hybrid
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Your applicationOpen nowFreelance Senior Information Security ConsultantCRANIUM · Zaventem, Vlaams Gewest, Belgium

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The clock on this job

Early applications get read.

12.3% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.3%14 days
  5. 35.6%30 days
  6. 58.1%60 days
This job: first seen 68 days ago

The posting

Help organisations build security that sticks

Cybersecurity shouldn’t be a tickbox. It should be built to last. At Cingulum, we work various critical sectors to improve resilience, reduce risk, and ensure compliance with frameworks like ISO 2700/Cyber Fundamentals and regulations like NIS2.

We're looking for an experienced Senior Security Consultant to join our trusted freelance network. If you’re driven by impact, comfortable leading projects, and ready to coach others while delivering strategic value, you’ll fit right in.

What it’s like to freelance with Cingulum

As a freelance consultant with Cingulum, you will work closely with our teams and clients. You will also have the opportunity to bring a junior consultant onto projects and mentor them in the Cingulum way of working.

We match your expertise with the right projects, aligned with your skills and availability, so you can focus on what you do best. It’s all about Teamwork!

Your role

As a freelance Senior Information Security Consultant, you’ll work closely with our clients to lead projects that strengthen their cybersecurity posture, prepare them for audits, and build long-term resilience.

Your typical day could include:

  • Lead NIS2 or ISO27001 implementation and readiness tracks.
  • Design governance, risk management, and business continuity frameworks tailored to each client’s needs.
  • Act as a CISO (ad interim or fractional) for clients, offering strategic guidance and oversight.
  • Coach junior consultants, review deliverables, and ensure quality across engagements.
  • Support external audits or take the lead on internal readiness assessments.
  • Monitor project performance and keep clients aligned on timelines, scope, and impact.

You’ll be supported by a dedicated project team, and have access to Cingulum & CRANIUM Group’s proven templates, methods, and tooling and we would love to see you at our internal Team Meetings & Buildings!

What we’re looking for

You’re a seasoned security expert with a clear head and a collaborative mindset. You know when to lead, when to coach, and when to challenge.

You have:

  • At least 5 years’ experience in cybersecurity, IT governance, or risk management.
  • A confident grasp of ISO 27001, CyFun, and related frameworks.
  • Strong stakeholder communication skills, both technical and business-facing. You know when to talk jargon and when to simplify.
  • The ability to work independently within structured engagements.
  • Fluency in Dutch and English is required. Professional knowledge of French is considered a plus.

Bonus points if you have:

  • CISM, CIPT, ISO27001 (LI or LA), or NIS2 Lead Implementer certification.
  • Experience working in critical sectors (finance, energy, healthcare, etc.).
  • Strong supplier risk management knowledge aligned with NIS2.

Why work with Cingulum?

We know what experienced freelancers value: clear scope, constructive teamwork, and professional respect. When you join Cingulum, you get all three, plus the chance to shape your own professional knowledge and experience further.

Here’s what sets us apart:

  • Engagements that matter. You’ll work on high-impact projects with clients that value strategic input (not checkbox consultancy).
  • Colleagues, not just contacts. Freelancer or not, you’re part of the team where you want to be. We know how to work together, and how to blow off steam together.
  • Resources that lighten your load. From templates and training to internal reviews and delivery support, you won’t have to reinvent the wheel thanks to our Centre of Excellence.
  • Access to Cingulum's knowledge hubs. Use our internal playbooks, join our community events, or scale your skills via CRANIUM Academy and CRANIUM Campus.

And importantly, our freelance model is designed with continuity in mind. If a project wraps, we’ll explore the next opportunity with you, not just say goodbye.

Application Process

  1. Your application will first be reviewed through a first phone call with one of our Recruiters.
  2. If there is mutual alignment and a suitable opportunity, you will be invited to our headquarters in Zaventem for an on-site meeting with our CEO, Dave Geentjens, and a member of our HR team. During this interview, you will be asked to complete a business case to demonstrate your approach and expertise.
  3. Following the interview, you will receive a concluding phone call from our CEO or an HR representative to - hopefully – confirm our collaboration.
  4. Once confirmed, you will be welcomed into the Cingulum team and introduced to our Way of Working (WoW).

Ready to team up?

We’re always looking to grow our network with driven, talented professionals. If you’re an experienced Security Consultant who’s looking for meaningful, flexible work with a high-impact team - let’s talk.

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