Joseph Riske Email & Phone Number

Whittier, Ca, Us

Configured, installed, and troubleshooted multiple 9300 Cisco switch stacks, core switches, and 8300 SD-WAN routers for complete network equipment cutovers at thirteen medical offices across the Los Angeles area. Coordinated and supervised multiple ISP circuit installations at all sites, ensuring seamless integration with existing network infrastructure. Demonstrated exceptional project management skills, leading to the successful completion of all site cutovers under the projected time schedule. Collaborated closely with cross-functional teams to ensure smooth communication and coordination throughout the project lifecycle. Implemented rigorous testing procedures to verify the functionality and performance of newly installed network equipment, ensuring minimal disruption to operations. Proactively identified and resolved technical issues, leveraging strong troubleshooting skills to maintain network integrity and reliability. Documented all configurations, installations, and troubleshooting processes to facilitate future maintenance and support efforts.

Primary emphasis in this role was troubleshooting network issues (broadcast and ARP storms, duplicate IP addresses on the network, static IP addresses vs DHCP conflicts, connectivity between different networks, etc.). Worked on several types of equipment such as Cisco 9500 core switch, 9300 access switches, 2960 switches, 3560 switches, Cisco WLC’s, Cisco 5508 ASA’s, some exposure to Cisco 2120 FTD firewall utilizing FMC, some Cisco ISE). Managed creation and deletions of site-to-site VPNs on Cisco ASA and FTD’s. Replaced switch stacks in IDF’s. Created Visio diagrams of the company network including private media content network. Gathered and documented monthly security metrics for vendor audits. Monitored and took action on reported security alerts from Crowdstrike and Darktrace platforms.

Arcadia, Ca, Us

Configured, installed, and maintained several platforms to include Cisco C9200, C9300, C9500 switches spread over 50 intermediate distribution frames (IDF), Cisco Meraki access points, Palo Alto PA-850, PA-3020, and PA-3220 firewalls in High Availability (HA) pairs. Managed Panorama on PA-3220’s as well as DMZ server placement and policy sets. Configured PA-3020 HA pair from scratch to stand up new Disaster Recovery (DR) site as well as migrating rule/policy set, configuring IPSEC VPN tunnel to the corporate network, and setting up Global Connect with Two Factor Authentication (2FA) utilizing SafeNet. Spearheaded the acquisition, planning, configuration, and installation of over 100 C9200 Cisco access switches (many in a stacked configuration) for major hardware refresh project that came in under budget and under time. Assisted with new vendor VPN connection configurations via Command Line Interface (CLI) on redundant Cisco ASA-5508 firewalls. Added new network devices to Cisco ISE server utilizing 802.1x as well as upgrading firmware as needed. Supported approximately one thousand 802.11 access points with Cisco WLC and Cisco Prime.

Raleigh, North Carolina, Us

Maintained, troubleshot, and upgraded the WAN/LAN and VLAN infrastructure for the entire City of Anaheim. Maintained company’s single multihomed BGP connections as well as primary OSPF routing protocol. Worked with Cisco 1001 ASR, fabric extenders, 2960 and 3850 stack switches, Nexus 5K and 7K server farm, distribution, and core switches all in HSRP redundant configuration. Spearheaded citywide Cisco switch firmware upgrade to reduce multiple security vulnerability footprint. Migrated dual server farms to top of rack Cisco FEX switches saving the company approximately $182,000.00 in infrastructure costs. Also configured/administrated several Palo Alto/Fortinet firewall platforms (PA-200, PA-500, PA-5050) to include rule/policy management, access control, URL filtering, and VPN connections. Became the Subject Matter Expert (SME) for the company’s primary network monitoring tool (Solar Winds Orion).

Managed administration, security, and troubleshooting of company WAN/LAN with 30+ remote sites. Upgrade network by conferring with vendor and/or higher support; developing, testing, evaluating, and installing enhancements. Installed and administered Barracuda SSL VPN to replace multiple outdated company VPN solutions thereby reducing costs and providing more robust options. Upgraded current company wireless network with professional grade Cisco Meraki access points. Managed and maintained PA-3020 Palo Alto application firewall, Cisco ASA 5505/5516 stateful firewall, and Sonicwall firewalls including hardware replacement, software upgrades, and minor configuration changes. Created free open source configuration backup solution utilizing a VM Linux box and bash scripts to backup Cisco devices. Worked with multiple ISP’s/vendors to install new data circuits and upgrades over various mediums (fiber, cable, wireless). Monitored connectivity of network devices and bandwidth utilization using Intermapper, Solar Winds, Syslog, and Carbon Black.

Utilizes vulnerability assessment tools such as Retina Scanner, Q-tip, Scap Scanner, and other software packages to scan network assets ensuring strict compliance to Department of Defense Information Assurance Vulnerability Messages (IAVM’s) and prepares reports for theater level management. Monitors secret level Remedy ticket queues for security related incidents, vulnerability tracking, and remediation while maintaining Army standard SLA’s for resolution of tickets. Enforces incident handling procedures according to written SOP (Standard Operating Procedure).

Design, administration, security, troubleshooting, and maintenance of a 24 by 7 DOD data center with multiple WAN’s, LAN’s, and voice services supporting over 100 sites and 1800 users. Design, configure, troubleshoot, and administer multiple network and routing protocols (OSPF, EIGRP, BGP) over a broad range of hardware and software platforms. Design, configure, troubleshoot, and implement the maintenance and security of 125 Cisco routers, 300 Cisco switches, and 70 servers to include log monitoring and event correlation actions of devices. Perform daily monitoring of the network using Cisco Works, Solar Winds, Netflow, Wireshark, and other approved network traffic analysis software. Research, test, and institute new technologies to increase network services, network security, and end user productivity. Responsible for gathering and compiling network diagrams. Assess bandwidth requirements to ensure network capacity and processing speed. Conduct vulnerability scanning of servers and network devices utilizing Retina Scanner. Implement authentication and access control measures at all levels of the OSI model. Maintain ACL’s on all WAN equipment in response to Network Tasking Orders (NTO’s). Maintain and test disaster recovery plans. Identified physical and information security issues related to data center computing assets and sensitive information. Planned, designed, and implemented a WAN circuit conversion of over 100 sites from Frame-Relay to new technologies such as Metro Ethernet, cable modem, and MPLS.

Provided Level I and Level II DOD Helpdesk support to over 105 geographically separated locations and 1200 desktop users. Performs a wide variety of computer specialist duties and system administration functions on DOD, National Guard Bureau, and state automated systems and software programs. Supported the installation, troubleshooting, and repair of over 1000 desktops to include support for email/blackberry, web services, active directory, and system administration. Evaluate vendor software and hardware and makes recommendation to supervisor. Assist in DIACAP accreditation.

Manage the administration, maintenance, security, and 24 by 7 support of a DOD mobile data package. Oversees and performs Local Area Network (LAN) and Wide Area Network (WAN) administration of small to mid-sized networks (25 – 200 hosts). Supervises and performs the installation, operation, and maintenance of commercial off the shelf data equipment, firewalls, IDS, and system software in a high stress environment. Provides war fighter commanders with secure (utilizing software and hardware encryption) and non-secure Wide Area Network (WAN) access, long local DSN phone service and video teleconference (VTC) capability. Control physical and logical access to data systems. Maintain and test disaster recovery plans. Responsible for physical security of equipment valued at over $1,614,000.00. Directly responsible for the training, health, and welfare of three personnel. Responsible for all matters regarding evaluation, promotion, and awards. Coordinated with logistics to ensure that the unit was properly equipped and capable of completing the mission at all times. Researched and developed new installation processes that improved system installation times by 17%.