Cybersecurity Engineer - Vulnerability Management

We are looking for an experienced Cybersecurity Engineer for a freelance project with an international enterprise consulting company in Brussels, Belgium.

The assignment focuses on enterprise vulnerability management, infrastructure security and automation across complex on-premises and cloud environments.

The project is onsite in Brussels , with a planned start date of 20 December 2026 . A daily rate is available.

Key Responsibilities

• Manage the full vulnerability lifecycle, including identification, assessment, prioritisation, remediation tracking and verification.
  

• Conduct vulnerability assessments and produce remediation plans, security dashboards and risk reports.
  

• Coordinate vulnerability remediation, patching and security updates across infrastructure, cloud and security teams.
  

• Deploy, administer and harden Linux, Windows and VMware ESXi environments.
  

• Configure and secure network infrastructure, including firewalls, routers, switches and VPN gateways.
  

• Develop automation scripts using Python and Bash, including API integrations between security platforms and infrastructure tools.
  

• Improve the availability, scalability and resilience of cybersecurity infrastructure and services.
  

• Monitor security risks, remediation progress and operational KPIs, providing clear reporting to stakeholders.
  

Requirements

Essential Requirements

• Strong experience in cybersecurity engineering and enterprise vulnerability management.
  

• Advanced knowledge of Linux, Windows and VMware ESXi administration and hardening.
  

• Strong Python and Bash scripting skills for automation and API integration.
  

• Solid understanding of TCP/IP, network protocols, firewalls and VPN technologies.
  

• Experience securing AWS and Azure cloud environments.
  

• Hands-on experience with vulnerability scanning platforms such as Rapid7 Nexpose or Nessus.
  

• Familiarity with Splunk and ticketing systems such as ServiceNow or Jira.
  

• Understanding of hybrid cloud environments, containerised applications and DevSecOps workflows.
  

• EU SECRET security clearance will be initiated during on-boarding, if you do not already have clearance. EU nationality is essential. 
  

Desirable Experience

• Docker and Kubernetes.
  

• Message brokers such as Apache Kafka, RabbitMQ, AWS SQS or Google Pub/Sub.
  

• Additional programming experience in Java, Go or Rust.
  

• Cyber threat intelligence and security analytics.
  

Benefits

As a freelancer / contractor with us, you will enjoy flexible working hours and the freedom to choose your own projects. Our platform gives you access to exciting projects in various industries and supports you in advancing your career. You'll benefit from competitive pay and a dedicated team to help you with any questions you may have. Work independently and utilise our strong network to achieve your professional goals.