Information Systems Security Manager II (Cisco Lead) - Active Se with Security Clearance

Akima Systems Engineering (ASE) is seeking an experienced Information Systems Security Manager II (Cisco Lead) to provide technical leadership for secure networking, Unified Communications, Voice over IP (VoIP), Video Teleconferencing (VTC), and cybersecurity operations supporting U.S. Navy systems. This position is responsible for the engineering, administration, security, integration, modernization, and lifecycle management of Cisco networking and Unified Communications infrastructure. The successful candidate will lead technical efforts involving Cisco Unified Communications Manager (CUCM), Cisco routers and switches, VoIP and VTC services, VMware virtualization, Windows and Linux systems, firewalls, gateways, and associated Navy C4I communications environments.

The ideal candidate will have at least 10 years of progressively responsible experience in Cisco networking, VoIP, information systems security, and enterprise communications. This individual must be capable of providing hands-on technical support while also leading engineering activities, coordinating with cybersecurity teams, briefing senior leadership, and ensuring compliance with DoD, Navy, DISA, and Joint Interoperability Test Command requirements.

Serve as the technical lead for Cisco Unified Communications and secure voice infrastructure.

• Administer, configure, deploy, and maintain Cisco Unified Communications Manager, Cisco Unity Connection, Cisco Prime Collaboration Deployment, Cisco Expressway C and E, Cisco CUBE, Cisco ISR, Cisco UCS, and related collaboration technologies.
• Manage VoIP, VoISP, VTC, VTCoSP, voicemail, conferencing, and enterprise voice services.
• Configure Cisco UCM, CUBE, ISR, and Integrated Access Devices using SIP, TLS, MGCP, and SCCP protocols.
• Deploy and maintain Cisco Unity Connection for voicemail services.
• Deploy and manage Cisco Prime Collaboration Deployment for patching, upgrades, and Disaster Recovery System backups.
• Provision end users, endpoints, voicemail accounts, and VTC systems within Cisco UCM and Unity Connection.
• Integrate Cisco UCM and Unity Connection with Microsoft Active Directory and LDAP.
• Provision VTC endpoints for Cisco Webex meetings and direct SIP URI calling.
• Engineer and support migration from legacy Nortel PBX environments to Cisco UCM clusters.
• Manage migration of Direct Inward Dial numbers from ISDN PRI services to Internet Telephony Service Providers using SIP.

Configure and maintain Cisco routers, switches, gateways, Cisco Catalyst 8300 platforms, Cisco UCS BE7M systems, and enterprise network infrastructure.

• Configure Cisco gateways and integrate them with Navy networks.
• Configure static routes on Cisco CUBE platforms to support SIP call routing.
• Engineer remote-site connectivity using Dynamic Multipoint VPN tunnels and OSPF routing protocols.
• Configure site-to-site and client-to-site VPN tunnels on Cisco ASA and Meraki firewalls.
• Configure access control lists, firewall service objects, and related network security controls.
• Upgrade Cisco IOS software and gateway firmware to maintain system stability, security, and interoperability.
• Upgrade firmware on Cisco UCS chassis and associated infrastructure.
• Troubleshoot and resolve routing, switching, firewall, connectivity, and network performance issues that affect voice and video services.

Lead and manage IT security operations associated with Cisco networking, VoIP, VTC, and Unified Communications environments.

• Ensure Cisco Systems and third-party integrations comply with applicable DISA Security Technical Implementation Guides.
• Identify, document, and remediate vulnerabilities within network and communications infrastructure.
• Collaborate with cybersecurity teams to identify and authorize required ports, protocols, and services through DoD and Navy firewalls.
• Engineer hardware and software solutions in accordance with the JITC Approved Products List and Cisco Military Unique Deployment Guide.
• Support Risk Management Framework activities, vulnerability assessments, security reviews, inspections, and audit-readiness efforts.
• Renew and manage public and private certificates for CUCM, Cisco Unity Connection, and Cisco Expressway C and E systems.
• Ensure secure integration of Cisco networking infrastructure with Windows and Linux operating environments.
• Maintain compliance with Navy C4I standards, DoD cybersecurity requirements, and applicable security policies.

Perform upgrades to systems in accordance with JITC, DISA, Navy, and vendor requirements.

• Upgrade Cisco UCM and Unity Connection servers to approved service-update levels.
• Upgrade Cisco CUBE, IOS gateways, Cisco Expressway, and associated collaboration platforms.
• Upgrade VMware ESXi operating systems supporting virtualized communications infrastructure.
• Deploy virtual Cisco and Microsoft servers on VMware ESXi hosted on Cisco UCS chassis.
• Plan and…