Cybersecurity Engineer – Vulnerability Management

Interval; Brussel Hoofdstad; On-site; EUR 83,000 - 138,000; Full time

Job summary

Interval is seeking a Cybersecurity Engineer for a freelance project in Brussels, Belgium. The role focuses on enterprise vulnerability management, on-prem and cloud security, and automation across complex environments, onsite in Brussels with a start on 20 December 2026.

A daily rate is available and is commensurate with experience. The engineer will manage the full vulnerability lifecycle, conduct assessments, and coordinate remediation with security, infrastructure and cloud teams while

Qualifications

• Extensive experience in cybersecurity engineering and vulnerability management.
• Strong scripting in Python/Bash for automation and integrations.
• Solid Linux/Windows/VMware ESXi administration and hardening.

Responsibilities

• Manage the full vulnerability lifecycle from identification to verification.
• Perform vulnerability assessments, produce remediation plans and risk reports.
• Coordinate remediation, patching and security updates across teams.
• Deploy and harden Linux, Windows and VMware ESXi environments.
• Secure network infrastructure including firewalls and VPNs.
• Develop automation scripts and API integrations for security tools.
• Improve availability, scalability and resilience of security services.
• Monitor risks and KPIs, reporting clearly to stakeholders.

Skills

Cybersecurity engineering

Vulnerability management

Python scripting

Bash scripting

Linux administration

Windows administration

VMware ESXi

Cloud security (AWS/Azure)

Automation

Networking TCP/IP

DevSecOps

Docker

Kubernetes

Security analytics

Threat intelligence

Tools

Rapid7 Nexpose

Nessus

Splunk

ServiceNow

Jira

Docker

Kubernetes

Apache Kafka

RabbitMQ

AWS SQS

Google Pub/Sub

Job description

Cybersecurity Engineer – Vulnerability Management

Brussels, Belgium | Posted on 16/10/2026

Interval provides talent solutions and consulting expertise to help innovative companies succeed.

From specialist hiring through to tailored consulting and project solutions, we are proud to work with the industry's finest talent to deliver results.

We are committed to ensuring everyone can access our website and application process. If there is anything we can do to improve your experience or support you, please contact us: [e-mail]

Job Description

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

• 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.
• 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.

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.