Network & Communications Administrator

General Job Summary Responsible for the operational phase of the institution’s voice and data communications, ensuring high availability, performance, and security across all branches, departmental offices, and cloud services. Operates and optimizes LAN/WAN/SD‑WAN, enterprise Wi‑Fi, Internet/MPLS/LTE links, VPN (site‑to‑site and remote access), IP telephony/SIP/UC, and secure connectivity with cloud providers (OCI and AWS). Ensures policy compliance, audit support, and continuous improvement under ITIL practices and cybersecurity best practices. Essential Functions and Responsibilities Routing and switching (BGP/OSPF, VLAN, QoS), enterprise Wi‑Fi, and communications links (Internet/MPLS/LTE). Manage Fortinet firewalls/IPS (FortiGate), security policies and profiles, and associated management/analytics platforms (FortiManager/FortiAnalyzer). Monitor and manage load balancers, Wi‑Fi controllers, ADC, and segmentation (VLANs, NAC/micro‑segmentation). Maintain core services: DNS, DHCP, NTP, IPAM, and IP addressing/segment control. Design, operate, and optimize secure connectivity with OCI and AWS via IPsec VPN, SSL VPN, and dedicated links (FastConnect/Direct Connect), ensuring routing, security, and resilience (HA, failover, periodic switchover tests). Support VoIP/UC platforms, SIP trunks, SBC, and call routing; enforce QoS for voice quality (jitter, latency, loss, MOS); coordinate integrations with contact center/IVR and collaboration services; ensure recording and retention per policy. Monitor performance and capacity with NPM/NTA/SNMP/NetFlow/Syslog; set proactive thresholds and alerts; handle incidents (TierII/III), conduct root‑cause analysis, and implement remediation plans to reduce MTTR and recurrence. Apply network security controls (hardening, segmentation, privileged access, secure VPNs, lists/objects) and maintain audit evidence; support internal/external and regulatory audits, address findings, and implement corrective action plans. Implement and test HA, link redundancy, alternate routes, and failover mechanisms for critical services; participate in DR/BCP exercises, validating secure connectivity to critical services in OCI and AWS. Manage carriers/ISPs, OEMs (incl. Fortinet), and MSPs: contracts, SLAs, escalations, billing, and reconciliations; support RFP/RFQ evaluations and recommend cost‑effective modernizations and optimizations. Maintain up‑to‑date HLD/LLD diagrams, inventory, and operating procedures; review and present proposals for updates; provide technical training to the Service Desk and related teams. Requirements Bachelor’s degree in engineering (Computer/Telecommunications/Electrical) or Computer Science, or equivalent experience. 3+ years administering multi‑site networks and communications in regulated environments (financial, telecom, healthcare, or similar). Proficient knowledge of communication and network concepts and protocols. Fortinet NSE4/7 or higher; Cisco CCNA/CCNP; CompTIA Network+/Security+; ITILv4 Foundation. Cloud certifications with networking emphasis: AWS (Advanced Networking/SAA), OCI (Networking/Architecture). Experience with core networking architecture, major vendor equipment (routers, switches, firewalls, wireless access points), network security (firewalls, VPNs, IDS/IPS, access controls, vulnerability management), virtualization technologies, cloud platforms (AWS, Azure), unified communications (VoIP, SIP trunks, video conferencing), and operating systems (Windows Server, Linux). Bilingual (Spanish and English). Customer‑focused, service‑oriented, with strong verbal, written, and negotiation skills. Availability for on‑call duties, off‑hour changes, and site visits; valid driver’s license. Island Finance is an Equal Opportunity Employer. #J-18808-Ljbffr Island Finance