IT Security Officer

First Line Security Officer

Start Date: ASAP

End Date: 31/12/2026 (extendable)

Location: Belgium

Work Regime: Full-time, 2 days onsite

Languages Required: Dutch/French + English

Conduct daily triage and risk-based prioritization of vulnerabilities.
Follow up on remediation actions with IT teams.
Monitor deadlines, overdue findings, and remediation progress.
Prepare operational and management reporting.
Perform cybersecurity risk assessments and support risk acceptances.
Support security incident analysis and follow-up.
Monitor relevant threats and security advisories.
Contribute to security monitoring, hardening, and Cyber Defense process improvements.
Coordinate with IT teams, Security Officers, and external suppliers.

Strong knowledge of Vulnerability Management, including triage, prioritization, remediation follow-up, and reporting.
Experience with vulnerability-scanning tools such as Tenable, Qualys, or equivalent.
Good understanding of CVE, CVSS, CWE, EPSS, and CISA KEV.
Experience performing cybersecurity risk assessments and evaluating residual risk.
Knowledge of security incident triage, investigation, and remediation.
Experience with Cyber Defense technologies such as SIEM, EDR/XDR, and NDR.
Good understanding of infrastructure, network, endpoint, application, and cloud security.
Knowledge of security hardening, patch management, and CIS Benchmarks.
Experience with security reporting, KPI/KRI development, and dashboarding.
Familiarity with NIST, ISO 27001/27002, and MITRE ATT&CK.

Strong analytical and problem-solving skills.
Good organizational and prioritization skills.
Strong ownership and accountability.
Clear communication with technical and non-technical stakeholders.
Effective stakeholder management and collaboration.
Ability to work independently and drive actions to completion.
Structured, pragmatic, and detail-oriented working style.
Ability to remain calm and focused during critical vulnerabilities or security incidents.