System Administrator – Network and Security

  • 26 February 2023
Job Location: Belgium
Job Type: Contract
Job Category: Infrastructure

Are you a Network and Security Engineer with 4+ years of experience? You must be an EU Citizen (due to security clearance) that is based in Belgium or willing to relocate. Apply now to speak with the team!


  • 4+ years of relevant experience with Cisco, F5 and Palo Alto
  • 2 technical certificates from the list below (or willing to obtain)
  • Excellent knowledge of network administration (WAN-LAN) including: Cisco network devices/services (e.g. routers, switches etc: VLANs, ACLs, VPNs etc), F5 LB, AFM, basic APM, F5 LTM clusters, Cisco Nexus switches (e.g VLANS, HSRP, DHCP Relay, BGP, OSPF, etc), Juniper & Palo Alto firewalls, Panorama, UID etc.
  • Very good knowledge of scripting languages (Powershell, Bash, Python, CLI, Perl, etc)
  • Proven knowledge of working hands-on with Cloud Services and hybrid setups (integrating on premise and various Cloud Services)
  • Proven knowledge of working in complex / segregated network environments
  • Knowledge on network/server virtualization
  • Network security knowledge
  • SD-WAN knowledge
  • Proven experience in various service configuration (complete deployments including / taking into account the service security and high availability/ load-balancing related aspects)
  • Extensive knowledge of Splunk;
  • Experience in working with monitoring tools (Nagios, Solarwinds) (preferred) 
  • Desired: Expertise in Cloud network related services/technologies such as AWS/ Azure
  • Desired: Experience with Fireye 
  • Desired: Agile/Scrum experience/knowledge
  • Languages: English
  • EU citizenship due to security clearance

Certificates required (minimum 2 certificates not including ITIL):

  • CCDP/CCNP, CCNA, CCDE/CCIE, CCAr or relevant certifications of F5, Juniper, Palo Alto / SANS certification
  • Network Security related certifications.
  • Splunk related Certifications
  • SD-WAN related Certifications
  • ITIL v3 certificate (or willing to obtain)

Job Description:

  • Participate in the 2nd line support, Problem Management and on-call standby service;
  • Debugging and analysing of reported problems and escalated incidents;
  • Intervention on ICT infrastructure (routers, switches, security devices, F5etc)
  • Perform operational management of the ICT network environment for HQ and Delegations:
  • Performing backup/restore operations of network device configurations;
  • Development of scripts to improve central management and control facilities (central alerting, central logging, central security policy implementation …).
  • Serve as technical lead for planning, assessing, implementing and/or migrating of the production environment for HQ and Delegations.
  • Preparation and test of new reference configurations (CRB) for any supported hardware; integration & testing of new software versions, service packs, configuration changes.
  • Validation and testing of new procedures before release.
  • Network administration & debugging tasks.
  • On-site installation/migration/repair missions in delegations.
  • Writing operational guidelines for the system administrators.
  • End to end Implementation of architected solutions following a Low level design provided by the architects
  • Offer support and technical consultancy for the ongoing projects.
  • Implementation of changes related to the delivery of various solutions as part of a project but following the ITIL processes
  • Deliver quality and detailed documentation related to the implemented services which cover but are not limited to Installation and configuration Guides, Operational procedures, various other service related mandatory documentation
  • Drafting operational guidelines, procedures, installation notices and scripts for the integration, installation and upgrade of aforementioned component services;
  • Perform knowledge transfer, service handover to operations and offer assistance with roll-out of new ICT infrastructure projects;
  • Intervention on ICT infrastructure (routers, switches, firewalls, F5 LB, etc);
  • Development of scripts for automation of tasks and deployments
  • Collaborate with external technology architects and engineers (QTM)  and assist them in delivering the solutions

Apply now to speak with the team!

Apply Now

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