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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network & Security Engineer Expert - **Company:** Keystone Solutions - **Location:** Brussel, Belgium - **Experience:** Starter - **Contract:** Temporary contract - **Skills:** IEEE 802.1X, Border Gateway Protocol, Catalyst (Software), Dynamic Host Configuration Protocol, Software Design Documents, Domain Name System (DNS), Enhanced Interior Gateway Routing Protocol, High-Level Architecture, Internet Protocol Security (IP SEC), IPv4, IPv6, Virtual Private Networks (VPN), Multi-protocol Systems, Network Security, Microsoft Visio, Cisco Nexus Switches, Open Shortest Path First (OSPF), Paessler Router Traffic Grapher, Ansible, SAP Sales and Distribution, TCP/IP, Wireshark, Virtual Local Area Networks, Virtualization Technology, VMware VSphere, Wi-Fi Technology, Computer Networking Systems, Office365, Fortinet, Cisco - **Published:** July 8, 2026 - **Apply:** https://www.adzuna.be/details/5792114425 ## About the Role The ideal candidate must be flexible and autonomous, capable of traveling to client sites in the Brussels region and participating in on-call roles. You should demonstrate rigor, precision, proactivity, adherence to schedules, client-oriented solutions, and strong analytical skills. Proficiency in technical English is essential., * Automatisation : scripting, Ansible - Level: Intermediate - Most recent: This year * MS tools (O365, Visio) - Level: Advanced - Most recent: This year * Rseaux Cisco : administration et exploitation de commutateurs (Catalyst, Nexus), contrleurs Wi-Fi (WLC), Cisco DNA Center (DNAC) et outils de supervision associs. - Level: Expert - Most recent: This year * Rseaux et protocoles : TCP/IP, IPv4/IPv6, VLAN, MPLS, VPN/IPsec, routage dynamique (BGP, OSPF, EIGRP), SD-WAN. - Level: Expert - Most recent: This year * Scurit rseau : administration de pare-feu (Fortinet, Palo Alto), contrle d'accs rseau (NAC, IEEE 802.1X), solutions F5 (LTM/APM) - Level: Advanced - Most recent: This year * Services d'infrastructure rseau : DNS, DHCP, IPAM/DDI. - Level: Advanced - Most recent: This year * Supervision et diagnostic : Wireshark (analyse avance), PRTG - Level: Advanced - Most recent: This year * Virtualisation : VMware vSphere - Level: Intermediate - Most recent: 1 to 3 years ago Language requirements: Dutch Level Elementary proficiency English Level Full professional proficiency French Level Native or bilingual proficiency ## Description Keystone Solutions is seeking a Network & Security Engineer Expert for a consultancy mission at a client site. In this role, you will work alongside various infrastructure, application, security, and telephony teams, responsible for the design, implementation, maintenance, and security of diverse network infrastructures, Wi-Fi, security, and telephony systems., * Contribute to the definition and implementation of standardized and automated processes to optimize operations and enhance team efficiency. * Provide significant value to infrastructure projects by producing necessary technical documentation (High-Level Design, Low-Level Design, DAT) for management and maintenance. * Engage in diverse projects such as the implementation or improvement of network infrastructures, establishment of security solutions, and conducting network audits for clients. * Maintain an active watch to identify developments and opportunities for infrastructure improvements. * Participate in the production of new network and security requirements. ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [IP Authentication: A Tale of Performance Pitfalls and Challenges in Prod](https://www.wearedevelopers.com/videos/1413-ip-authentication-a-tale-of-performance-pitfalls-and-challenges-in-prod) - [IoT: The road to sustainability](https://www.wearedevelopers.com/videos/557-iot-the-road-to-sustainability) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) ## Related Articles - [Best Companies in the Netherlands: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/193-best-companies-in-the-netherlands-top-25-companies-in-2023) - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam) - [Software Developer Salary in The Netherlands [2023]](https://www.wearedevelopers.com/magazine/217-software-developer-salary-in-the-netherlands-2023) - [How to Find Tech Jobs in Amsterdam](https://www.wearedevelopers.com/magazine/279-how-to-find-tech-jobs-in-amsterdam) - [The Netherlands – Europe’s powerhouse for software development?](https://www.wearedevelopers.com/magazine/31-the-netherlands-europe-s-powerhouse-for-software-development) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)