About econocom At Econocom, we design, Finance, and accelerate digital transformation for companies and public organizations. With over 10,000 employees across 18 countries, we deliver cutting-edge IT solutions, combining technological expertise with business agility. To support our growth and strategic digital projects, we are looking for a versatile and experienced IT Infrastructure & Security Engineer to join our team. Your role As an IT Infrastructure & Security Engineer, you will contribute to the architecture, implementation, and management of secure, scalable IT infrastructures. You will act as a technical reference point on system engineering, cloud platforms, cybersecurity, and network technologies while supporting project delivery and continuous improvement efforts. This is a cross-functional role, ideal for profiles such as: System Engineer, Cloud Engineer, Cybersecurity Engineer, Linux/Windows Engineer, Network Engineer, Solution Architect, or Infrastructure Project Manager. Responsibilities Design, deploy, and support infrastructure solutions (on-premise, hybrid, and cloud environments) Manage Windows and Linux systems across development, staging, and production Configure and monitor network infrastructure (routing, switching, VPN, Firewall) Implement cybersecurity practices, vulnerability remediation, and compliance requirements Collaborate with internal and client teams to deliver infrastructure projects (migrations, rollouts, integrations) Document solutions and contribute to IT architecture and security strategy Ensure service reliability, performance, and continuous improvement of infrastructure components Your profile Minimum 3-5 years' experience in IT infrastructure roles Broad technical knowledge across Operating Systems: Windows Server, Linux (RHEL/CentOS/Ubuntu) Cloud: AWS, Azure, or equivalent (certification is a plus) Networking: TCP/IP, DNS, DHCP, VLANs, VPNs, Firewalls Security: EndPoint protection, identity/access management, patching, SIEM tools Familiar with tools such as TerraForm, Ansible, PowerShell, Bash, GIT Experience in leading or contributing to IT infrastructure projects Strong communication, analytical, and documentation skills Fluent in English and [French or Dutch, depending on the location] Nice to have Certifications: AWS/Azure Associate, CCNA, Microsoft Certified, CompTIA Security, ITIL, PMP Experience with ITSM platforms (e.g., ServiceNow) DevOps or automation background What we offer A dynamic and innovative environment within a leading European digital group Opportunities to work on varied, large-scale projects for top-tier clients Continuous training and certifications Flexibility: hybrid or remote work depending on the assignment A collaborative team culture and career evolution opportunities Ready to shape the future of digital infrastructure with Econocom? Apply now and join a team that combines passion for technology with business impact.