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Medior Network/Security Engineer

At Proximus SpearIT, we do everything to enable companies to work smarter, safer and faster. Customers come to us for our wide and extensive offering of IT services. Due to our strong growth, we are always looking for new employees.

Proximus SpearIT strengths:

  • Infrastructure projects and integrations, on-site and in the cloud;
  • Services related to networks, security, Skype for Business, storage, network and server maintenance, monitoring, service desk, and on-site support;
  • Support by IT specialists, project managers and interim managers;
  • Sale of servers, network equipment, smartphones, tablets, PCs and accessories.

What do we expect from you?

As member of the network and security team you will participate in both operational and project related tasks.

  • For operational tasks you will provide 2nd or 3rd line support for incidents, problems, reporting and monitoring for cases where 1st line team was not able to solve the issue at hand
  • For project related tasks you will take on the role Technical project lead for network or security projects or support other project teams

Job Description

Typical tasks:
- Design / Implementation of networks
- Prepare and deploy network infrastructure
- Review of network device configuration and architecture
- Network device vulnerability and assessment/remediation
- Monitor and troubleshoot network and security devices
- Enforcement of network and network security policies
- Ensure connectivity and bandwidth

Job Requirements

- Excellent people skills and team player
- At least 3 years of network and security engineering experience
- Experience with various network tools
- Excellent written and verbal communication skills
- Dutch verbal and writing skills

Skills and experience, thorough knowledge of the following:        
•    Layer 2
o    Spanning Tree (PVST, MST, RPVST)
o    LACP
o    dot1q
•    Layer 3
o    IPv4 - IPv6
o    VRF
o    Tunneling (IPIP,GRE)
•    Layer 4
o    Stateful firewalling
o    TCP/UDP
•    Layer 7:
o    DNS
o    DHCP
o    Forward Proxy
•    Security concepts
o    SSL/TLS
o    IPsec
•    Hands-on experience with Cisco routers and switches, plus at least one of the following vendors:
o    F5
o    Palo Alto 
o    Infoblox
o    FortiNet
•    Knowledge in one or more of the following areas is considered an advantage:
o    PKI/Certificates/Asymmetric encryption
o    802.1x/EAP
o    Host virtualisation (eSXI, kvm)
o    Network Virtualisation (Cisco ACI, Cisco SDA, underlay and overlay networking)
o    Linux, bash scripting, Python scripting, Ansible, PostgreSQL, REST-API's, ZTP, automation 
o    Network monitoring tools: Cacti, netdisco, zabbix, Icinga
o    Datacenter switching & fabrics

Your Working Place :


What do we offer?

At Proximus SpearIT, you can take your career in many directions. You will be among the first to explore new technologies and can constantly update your skills in our ICT Academy. Our working culture is that of an SME: we say it like it is and never shy away from a challenge.

Since we form part of the Proximus Group, you also benefit from the advantages and security of a large company. You can expect an attractive salary and an extensive package of fringe benefits.

Eager to take the plunge?

Don’t hesitate: quickly send us your motivation letter and CV using the button below.

If you have any questions about the job, feel free to call Anis Ajari on +32 488295991.


Proximus SpearIT – 38 Ferdinand Allenstraat – 3290 Diest

Apply now!