Network Engineer

As a Network Engineer, you will be responsible for the design, installation, management, and troubleshooting of corporate networks (routing, switching, optical fiber/WDM). This position is a consultancy mission at a client site representing Keystone Solutions, where you will work on-site with network, security, and monitoring solutions while delivering clear technical documentation. You will collaborate with operations and security teams to ensure the availability, performance, and security of network infrastructure.

• →Design, implement, and maintain routed and switched networks.
• →Configuration and management of (Next Generation) firewalls and IPSec VPNs.
• →Installation and maintenance of optical fiber networks including WDM.
• →Physical installation and cabling of network equipment in data centers/sites.
• →Automate and script tasks using Python.
• →Set up and utilize network monitoring and open-source tooling.
• →Use of SIEM/log collectors; analyze logs and support incident investigations.
• →Draft and maintain technical documentation.
• →Collaborate with team members and stakeholders; provide support during escalations and change activities.

• Valid driving license B (mandatory) and willingness to work 100% onsite.
• Proven experience with routing & switching (broad foundation).
• Good knowledge of Python for scripting and automation.
• Experience with (Next Generation) firewalls and IPSec VPN configuration.
• Experience with optical fiber networks and WDM technology.
• Practical experience with physical installation of network equipment (rack, cabling).
• Experience with Linux (usage and basic management).
• Experience with network monitoring tools (e.g., Zabbix, Prometheus, LibreNMS, or equivalent).
• Knowledge and experience with open-source networking tools and automation (Ansible, NetBox, etc.).
• Experience with SIEM and log collectors (usage and basic configuration).
• Languages: Dutch and/or French and English (fluent in spoken and written).
• Minimum 3 years of relevant work experience (or equivalent practical experience).
• Must possess Belgian nationality and a valid security clearance National, NATO & EU, at least level SECRET and/or be able to apply for one.

Dutch or French
Level Active knowledge
English
Level Active knowledge

• Certifications: CCNA/CCNP or equivalent.
• Experience with fiber certification and testing equipment (OTDR, power meter).
• Knowledge of network security frameworks and best practices.
• Experience with change management and ITIL processes.

• Problem-solving and analytical skills.
• Practical mindset and hands-on approach to physical installations.
• Strong communication skills and team-oriented.
• Attention to detail in documentation and configuration management.

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.

• CCNA - Level: Expert - Most recent: Any time
• Firewall - Level: Expert - Most recent: Any time
• Linux - Level: Expert - Most recent: Any time
• Open Source - Level: Expert - Most recent: Any time
• Pyhton - Level: Expert - Most recent: Any time
• SIEM - Level: Expert - Most recent: Any time
• VPN - Level: Expert - Most recent: Any time