Senior network and security engineer

We are looking for a highly skilled and adaptable Engineer to design, implement, and maintain our multi-vendor enterprise infrastructure. This hybrid role covers three critical domains: Networking (Aruba), Security (Fortinet, Palo Alto, Forescout, F5, Zscaler), and Collaboration (Ribbon, Yealink, Avaya). You will play a key role in ensuring network reliability, security, and performance while leading infrastructure projects. Key Responsibilities: 1- Network & Infrastructure (Aruba) Wired & Wireless: Design and administer Aruba AOS-CX Switching (Core & Access) and Wireless environments. Central Management: Utilize Aruba Central for cloud-based monitoring, configuration, and AI-driven troubleshooting of APs and switches. Maintenance: Perform firmware upgrades, VSX/MC-LAG configurations, and 2 D/3 D line support for LAN/WLAN issues. 2- Cybersecurity & Zero Trust Next-Gen Firewalls: Manage policies, SSL decryption, and VPN tunnels on Forti Gate and Palo Alto platforms. NAC & Visibility: Administer the Forescout NAC solution to ensure device visibility and automated remediation workflows. Application Security: Configure and tune F5 WAF (ASM/LTM) to protect web applications from evolving threats. SASE & PAM: Implement and support Zscaler SASE (ZIA/ZPA) for secure remote access and manage Privileged Access Management (PAM) protocols. 3- Collaboration & Unified Communications Voice Gateways: Configure and maintain Ribbon Gateways (SBCs) to secure SIP trunking and ensure interoperability between legacy and modern systems. Endpoints: Manage Yealink Teams IP Phones and legacy Avaya telephony environments, including SIP/H.323 protocol troubleshooting. Teams Integration: Support Microsoft Teams Phone System Direct Routing and hybrid collaboration workflows. Qualifications: Bachelor’s degree in Computer Science, IT, or a related field. 4+ years in network and security engineering with hands-on multi-vendor expertise. Certifications (Preferred): Aruba: ACSP (Switching) or ACWP (Wireless). Security: PCNSE (Palo Alto), NSE 4-7 (Fortinet), or F5-CA. Voice: Yealink Certified Sales/Technical Engineer or Ribbon SBC certification. #J-18808-Ljbffr