PpbFor one of our major clients in Brussels, /b we are looking for a bSenior System Design Engineer / Senior Network Engineer /b to support the design, deployment, and operation of enterprise network and security infrastructures. /p pYou will act as a technical authority for WAN, LAN, and Wireless environments, combining strong design capabilities with hands‑on operational experience. /p h3bKey responsibilities /b /h3 ul liEvaluate business and technical requirements and translate them into robust system and network designs /li liAssess design benefits, risks, and trade‑offs, and validate compliance with requirements /li liSupport and oversee the deployment of approved designs into production environments /li liDesign, implement, operate, and optimize benterprise WAN, LAN, and Wireless infrastructures /b /li liAct as technical authority for bFortinet and Aruba environments /b /li liPerform complex incident resolution and root cause analysis /li liUse engineering and development tools to address technology evolution, capacity management, and performance optimization /li liProactively propose improvements to existing systems, processes, and services /li liMaintain and update technical documentation through clear and structured technical writing /li liParticipate in bon‑call duty /b, including bnight operations /b, for the systems under your responsibility /li /ul h3bRequired technical competencies /b /h3 h3bWAN / Security (mandatory) /b /h3 ul liSD‑WAN architectures /li liBGP routing /li liFirewall policy design and rule management /li liAdvanced troubleshooting and debugging /li /ul h3bLAN /b /h3 ul libHPE Aruba switching /b /li liCisco enterprise switching /li liCore switching environments /li liVLANs, routing, and redundancy designs /li /ul h3bWireless /b /h3 ul liAruba Access Points /li liAruba AirWave /li liEnterprise Wi‑Fi design, optimization, and troubleshooting /li /ul h3bGeneral networking /b /h3 ul liStrong understanding of TCP/IP, routing, and switching fundamentals /li liExperience with enterprise monitoring, logging, and alerting /li liKnowledge of high‑availability and failover designs /li /ul h3bProfile experience /b /h3 ul lib5+ years of experience /b in system engineering, network infrastructure, or system design roles /li liProven hands‑on experience in production environments /li liAbility to work independently and take full ownership of technical domains /li liStrong analytical thinking, adaptability, collaboration, and result‑driven mindset /li /ul h3bLanguages /b /h3 ul libDutch: /b C1 /li libFrench: /b B1 /li /ul h3bWhat can Econocom offer you? /b /h3 ul liAn attractive salary complemented by hospitalization and group insurance, meal and eco vouchers, a company car, and the possibility of working from home. /li liUpon joining, you will be assigned a Competence Manager who will introduce you to the company and guide your individual career. /li liVarious blended training opportunities that will help you grow professionally. /li /ul pbEconocom is committed to promoting an inclusive and respectful work environment, where every individual is valued regardless of race, gender, age, religion, sexual orientation, disability, or any other characteristic protected by law. /b /p pbAny form of discrimination is strictly prohibited under our Code of Conduct. /b /p /p #J-18808-Ljbffr