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IT Network and Operational Security Architect

Brabant Wallon

Start date Type Languages
June 2020 Freelance et Permanent FR/EN - Knowledge of the Dutch language is a plus

Business & ICT Consulting operates from Belgium and Luxembourg; making easier for its customers to implement and manage their ICT departments truly aligned with new arising models of organizations built on sustainable development and innovation.

Job description

We are actively looking for an IT Network and Operational Security Architect-TPM to help in the operational support at our client

Start mission, duration

June 2020 -  Full time


•             Design, implementation and follow-up of Network and Operational Security solutions
•             Multiple teams and partners coordination (technical project manager) for implementations and upgrades
•             Team player with autonomy, process and procedures-aware
•             Reverse engineering and documentation capabilities
•             Troubleshooting skills with root cause analysis and workarounds/solutions building
•             At least 4 years’ experience in Network and Operational Security architecture


The candidate will be part of the IT Infrastructure team, composed of 3 clusters : Scope & OLA, Implementation & Lifecycle and Rollout & Support. More specifically, he/she will be a member of the Implementation & Lifecycle team, in charge of integration and evolution of Infrastructure products.
The candidate must be able to design and implement new Network and Operational Security components, integrated with other IT components, with stability and service continuity as key factors of success.
He/she must also be able to assess and monitor the lifecycle of such components, to maintain supportability, stability and performance.
IT Infrastructure team also ensure the highest level of support, and is in charge of coordination, analysis, follow-up and resolution of incidents and problems. Support will be given in person or by coordination of internal and external partners.


After a short period of onboarding, the candidate will be in charge of implementation and lifecycle of Network and Operational Security products, on-premises or in the private and public cloud. This include the tasks below:

•             Design Network and Operational Security solutions, and participate to the design of solutions leveraging Network and Operational Security components
•             Challenge designs proposed by partners with a focus on Network and Operational Security products
•             Provide assistance during IT scope definitions, specifically in the Network and Operational Security scope
•             Ensure fluid integration of Network and Operational Security products with other IT products, to ensure service continuity, performance and alignment with business needs
•             Implement designed solutions by coordination as Technical Project Manager
•             Ensure lifecycle follow-up for implemented Network and Operational Security products
•             Drive evolution of Network and Operational Security implementations to anticipate and comply with business needs
•             Maintain and upgrade solutions by coordination as Technical Project Manager
•             Write and maintain documentation for Network and Operational Security implementations (new or existing)
•             Write and maintain manual procedures and/or tools to automate and standardize changes (new or existing implementations)
•             Define and document processes related to Network and Operational Security implementations (new or existing)
•             Participate to continuous improvement of Network and Operational Security implemented products
•             Popularize Network and Operational Security products to make them understandable for business partners

Technical environment

Currently implemented components are listed below. The candidate should master a maximum of these technologies, specifically in the Network and Operational Security scope.

Network and related technologies
o             IPV4
o             L2 and L3 technologies
o             DHCP
o             DNS (split-brain, multiple layers, private and public, Windows and Linux-based)
o             Multiple layers and multiple partners routing, over more than 200 sites, including partners sites
o             QoS

Switching and routing (LAN & WAN)

o             Cisco Catalyst/Nexus family connected with fiber and copper links
o             Cisco 5520 Wireless Controllers + Access Points
o             Cisco Routers (Mainly for Proximus Explore)
o             Cisco Ironport Email security appliances
o             Juniper switches

MPLS networks

o             Proximus Explore (all over Belgium) over ADSL/VDSL/Fiber
o             Proximus Explore Cloud Connect extension to Azure ExpressRoute West Europe
o             Infonet connection to Germany through Cisco routers managed by BT

o             Checkpoint Firewall, IDS/IPS, URL filtering, Reverse Proxy, Endpoint for S2S VPN
o             Fortinet Fortigate with FortiManager
o             Cisco ASA (P2S and S2S VPN)

Load balancers

o             F5 Big-IP


o             GlobalSign SSL and Code Signing
o             Let’s Encrypt SSL


o             Windows 7 to Windows 10
o             Windows Server 2003 to Windows Server 2019
o             Active Directory, Azure Active Directory, AAD Connect, ADFS 4.0
o             DNS Server, DHCP Server, Network Policy Server
o             Skype for Business 2016
o             Microsoft Azure
o             Microsoft 365 & Microsoft System Center Configuration Manager

Linux (Redhat)

o             Zabbix
o             Ansible
               DNS servers, DHCP servers
               NTP server
               Squid Reverse Proxy

Non-infrastructure products with strong infrastructure integration

o             IBM DataPower, IBM MQ, IBM IIB

If you are you looking for a new challenge, do not hesitate and send us your resume



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