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September 3, 2026

Security Engineer

Senior • On-site

2,356 - 2,399 PLN/yr

Brussels, Belgium

Description

As a member of the Client Cybersecurity team, you will manage and improve vulnerability management processes, secure infrastructure environments, and drive automation initiatives across hybrid cloud and on-premises environments. You will work closely with infrastructure, cloud, development, security, and compliance teams to strengthen the organization’s security posture while ensuring operational efficiency through automation and innovation.

Responsibilities

  • Create custom internal scripts for task automation, data analysis, and API integrations connecting security platforms and infrastructure tools.
  • Manage the full vulnerability lifecycle, including identification, assessment, prioritization, remediation tracking, validation, and reporting.
  • Prepare vulnerability assessment reports, remediation plans, dashboards, operational procedures, KPIs, and security metrics.
  • Coordinate remediation activities across multiple teams to ensure timely patching, security updates, and configuration changes.
  • Deploy, administer, secure, and harden Linux, Windows, and VMware ESXi server environments.
  • Deploy, configure, and maintain network devices including switches, routers, firewalls, and VPN gateways.
  • Design, orchestrate, and deploy scalable and resilient infrastructure services supporting cyber threat management operations.
  • Develop and implement automated workflows to reduce manual intervention and prevent recurring incidents.
  • Collaborate with IT Infrastructure, Cloud Operations, SOC, Development, Compliance, and external vendors to ensure effective remediation and security operations.
  • Monitor and report on vulnerabilities, risk exposure, high-risk assets, actively exploited threats, ticket trends, and security performance indicators.
  • Produce and maintain technical documentation for engineers, operators, and end users.
  • Troubleshoot mission-critical services and continuously improve operational efficiency through automation.

Technical skills

  • Strong expertise in Linux, Windows Server, and VMware ESXi administration and security hardening.
  • Advanced scripting and automation skills using Python and Bash.
  • Experience with API integration and workflow automation between enterprise technologies.
  • Strong knowledge of TCP/IP networking, firewalls, VPN technologies, and network security principles.
  • Hands-on experience with AWS and Azure cloud platforms and related security practices.
  • Experience with vulnerability management tools such as Rapid7 Nexpose and Nessus.
  • Experience with SIEM platforms, preferably Splunk.
  • Experience with ticketing and ITSM platforms such as ServiceNow and Jira.
  • Knowledge of cybersecurity operations, cyber threat intelligence, and vulnerability management best practices.
  • Familiarity with containerized environments and DevSecOps practices, including Docker and Kubernetes.
  • Experience with messaging and event-driven platforms such as Apache Kafka, RabbitMQ, AWS SQS, or Google Pub/Sub.
  • Knowledge of emerging threats, attack vectors, and modern hybrid cloud security challenges.
  • Experience in Java, GoLang, or Rust is considered an asset.

Requirements

  • Postsecondary education of at least 2 years in IT and 6+ years of professional experience in the related area of the profile, or postsecondary education not in an IT field and 10+ years of professional experience in the related area of the profile.
  • Bachelor’s or Master’s degree in Computer Science, Cybersecurity, Information Technology, or a related field.
  • 5+ years of experience in cybersecurity, infrastructure engineering, vulnerability management, or a similar role.
  • Strong analytical and problem-solving skills with the ability to manage complex technical environments.
  • Ability to work effectively with cross-functional teams and multiple stakeholders.
  • Excellent communication, reporting, and documentation skills.
  • Proactive mindset with a strong focus on automation and continuous improvement.
  • Fluency in English is required; French is considered a strong asset.

Offer

  • B2B contract
  • On-site set-up in Brussels
  • Rate: 554 EUR/MD

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