Freelance Cyber Security Specialist

adesso is a leading European IT consultancy with strong roots in Germany and a fast-growing presence in the Benelux. We support organizations in their digital transformation with a strong focus on security, reliability, and regulatory compliance. To support upcoming client engagements, we are expanding our freelance network with experienced Cyber Security Specialists.

Location: Belgium / Remote (hybrid possible)

Preferred start date: flexibel

Languages: English + Dutch or French speaking

Your role

As a Freelance Cyber Security Specialist, you will support clients across various industries (finance, public sector, healthcare, manufacturing, utilities, etc.) in strengthening their security posture and managing cyber risks.

Depending on the assignment, your responsibilities may include:

• Assessing security risks, vulnerabilities, and compliance gaps

• Designing and implementing cyber security measures and architectures

• Supporting security operations, incident response, and remediation plans

• Conducting security assessments, audits, and penetration tests (or coordinating them)

• Advising clients on best practices, governance, and security roadmaps

• Supporting projects in areas such as cloud security, IAM, network security, or application security

• Collaborating with architects, developers, IT, and business stakeholders

Required Experience

We are looking for freelancers with strong technical expertise and a consulting mindset:

• Proven experience as a Cyber Security Specialist, Consultant, or Engineer

• Solid knowledge of security domains such as:

  • Network & infrastructure security

  • Cloud security (Azure, AWS, or GCP)

  • Identity & Access Management (IAM)

  • Application & DevSecOps security

  • Security monitoring, incident response, and SOC operations

• Familiarity with standards and frameworks such as ISO 27001, NIST, CIS, or SOC2

• Experience with security tools (SIEM, EDR, vulnerability scanners, etc.) is a plus

• Strong communication skills, able to translate security topics to business stakeholders

What we offer

• Access to challenging and impactful cyber security projects

• Collaboration with experienced adesso consultants across Belgium and Europe

• Transparent communication and pragmatic cooperation

• Flexible engagement models (remote / hybrid, project-based or time & material)

• Opportunity for long-term collaboration within the adesso freelance ecosyst

• Work in an international group with strong local expertise in Belgium.

• Collaborate with cross-functional teams to deliver trusted, compliant, reusable data products.

• Flexible freelance setup with the support of a growing adesso Belgium community.