Senior Network Security Administrator

The services to be provided at the level Senior System Administrator in the project team and will cover the following tasks requested by the client:

• 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;
• Operate in accordance with the defined ITIL processes and procedures;
• 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 within the client contex

Tasks

As part of the Operational team he can be asked to:

• Perform daily, weekly and monthly operational tasks;
• Participate in the 2nd line support, Problem Management and on-call standby service;
• Debugging and analyzing 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 polices 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 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.

Technical and functional skills

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;

Certifications

Besides ITIL v.3 foundation or higher, addionationally minimum 2 technical certifications:

• 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

Nice to have

• Experience in working with monitoring tools (Nagios, Solarwinds)
• Expertise in Cloud network related services/technologies (AWS/ Azure)
• Experience with Fireye
• Agile/Scrum experience/knowledge

Summary of mandatory requirements

• High School Diploma + at least 8 years in Network and Network Security Administration
• Languages: English MANDATORY
• Start: This is a freelance position. We are looking for freelancers that are able to start ASAP

Location

Brussels, Belgium (remote work accepted only from Belgium – on-site work is preferred)