Cyber Security Expert

Senior Cyber Security Specialist – IT & OT

What if your security expertise didn’t just support systems — but actively shaped how an organisation protects its most critical digital and operational assets?

For one of our long-term clients, we’re searching for a Senior Cyber Security Specialist to strengthen enterprise-wide security across both IT and OT domains. This is a high-impact role where you’ll work closely with technical teams, leadership, and security operations to reduce risk and elevate cyber maturity.

The role

You’ll act as a key security partner across the organisation, combining hands-on expertise with strategic influence.

Your responsibilities include:

• Working with internal stakeholders to roll out security controls and mitigations across IT and OT landscapes
  

• Handling vulnerabilities, weaknesses, and incidents escalated by the Security Operations Centre
  

• Performing security assessments and technical reviews for both new developments and existing platforms
  

• Coordinating and managing penetration testing activities for applications and infrastructure
  

• Advising project and architecture teams on secure technology choices and design principles
  

• Leading phishing simulations and contributing to security awareness initiatives
  

• Reviewing and validating firewall configurations and network security controls
  

• Providing security input to governance and decision-making at senior level

Requirements

We’re looking for someone with a strong security foundation and the confidence to operate at both technical and organisational levels.

Ideally, you bring:

• A master’s degree in computer science, IT, or cybersecurity
  

• Extensive professional experience (10+ years), including a solid background in information security
  

• Practical experience in security assessments, testing, or security operations
  

• Broad knowledge of cloud security, network security, and communication protocols
  

• A strong grasp of identity and access management (IAM) concepts and solutions
  

• Exposure to OT security environments, or a clear motivation to deepen this expertise
  

• Relevant cybersecurity certifications (an advantage, not a must)
  

• Strong communication skills and a collaborative mindset
  

• Excellent organisational abilities and attention to detail
  

• A pragmatic, adaptable approach with a focus on results
  

• Fluency in English; knowledge of Dutch and/or French is highly beneficial
  

Benefits