Cronos Europa - Cybersecurity Engineer

As a member of our Cybersecurity team, you will be responsible for managing and improving vulnerability management processes, securing infrastructure environments, and driving 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. 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. 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. Why cronos group? We'll propose you: An attractive salary package. A good work-life balance environment. The opportunity to work with cutting-edge cybersecurity and cloud technologies. Challenging projects in a dynamic and innovative environment. Tailor-made training courses and professional development opportunities. A friendly and collaborative workplace. If you wish to integrate a dynamic structure on a human scale while working with the latest technologies, don't wait anymore and join Cronos! Cronos Europa is an IT and digital communications company uniquely dedicated to serving the European institutions, agencies and bodies. From the European Union to EUROCONTROL, we partner with a range of supranational and interinstitutional authorities. Our mission is to arm them with the tools they need to thrive in the digital age. Every aspect of our organisation is designed to complement their capabilities - from our people to our processes and our premises. Our brand combines the expertise of former companies Cronos International and C-Dev, with the creative skills of Inspiiro and the breadth of capabilities of the Cronos Group. Today, Cronos Europa employs over 1,000 people in offices across Belgium, Luxembourg and the Netherlands, serving institutions across diverse framework contracts. Cronos Europa is part of the Cronos Group, one of the largest IT service providers in the Benelux, employing over 8,000 people across 200 competence centres. By leveraging the Group's resources, Cronos Europa can help clients extract value from new and emerging technologies, for everything from Artificial intelligence to Zg Quantum.