Senior System Design Engineer (Network & Security) Mechelen Freelance CDI

Key Responsibilities

• Analyse business and technical requirements and translate them into robust system designs
• Evaluate design options tradeoffs and benefits ensuring alignment with enterprise standards
• Validate design compliance and support deployment to ensure requirements are fully met
• Design and optimise systems with focus on performance capacity availability and scalability
• Contribute to technology evolution and continuous improvement initiatives
• Perform complex incident resolution and root cause analysis
• Maintain and update technical documentation
• Participate in oncall rotations for the systems under your responsibility (when required)

Technical Scope

WAN & Security

• Fortinet technologies (FortiGate FortiManager)
• SDWAN architectures
• BGP routing
• IPsec VPN technologies
• Firewall policy design and management
• Advanced troubleshooting and debugging

LAN

• HPE Aruba switching
• Cisco enterprise switching
• Core switching environments
• Aruba Central (onprem)
• VLANs routing redundancy and high availability

Wireless

• Aruba Access Points
• Aruba AirWave
• Enterprise WiFi design optimisation and troubleshooting

General Networking

• Strong understanding of TCP/IP routing and switching fundamentals
• Experience with enterprise monitoring and logging
• Knowledge of failover and highavailability architectures

Qualifications :

Required Experience & Skills

• 5 years of experience as a system / network / infrastructure engineer
• Proven experience in enterprise network and security environments
• Strong handson expertise with Fortinet and Aruba technologies
• Experience performing endtoend design validation deployment and operations
• Solid troubleshooting skills and ability to work independently
• Experience with technical documentation and structured reporting
• Comfortable working in structured largescale IT environments

Soft Skills

• Strong analytical and conceptual thinking
• Proactive mindset with the ability to take initiative
• Clear structured and persuasive communication
• Resultoriented and adaptable
• Administratively accurate and organised
• Strong collaboration skills

Languages

• English Professional working proficiency (mandatory)

Remote Work :

No

Employment Type :

Full-time