David D. Email & Phone Number

• Work to manage relationships with client stakeholders• Lead. Network Engineer responsible for improving and managing the enterprise LAN/WAN infrastructure to meet compliance and business needs focusing on high availability, security and security• Work with client to develop improved work flows• Key responsibilities included but not limited to testing/validation, auditing/assessment, 2nd Tier for high level change requests, Tier 3 escalation support, training of remote tech staff, vendor relations, client relations• Lead member responsible for escalation support for operations related trouble tickets• Create Visio network and elevation diagrams for existing and future network layouts• Specific technologies include but not limited to Palo Alto 3320, 850, and 820 series, Cisco WLC 5520 and 9800 802.1x, Cisco ISE, Nexus 5k 7k and 9k, Cisco Catalyst 9k.• Additional responsibilities include team management to ensure members address and resolve all tickets in a timely manner and meet all agreed upon SLA requirements.

New Jersey, United States

• Lead Network Engineer responsible for improving and managing the enterprise LAN/WAN infrastructure to meet compliance and business needs focusing on high availability, security and security. • Additional responsibilities including overseeing project management, root cause analysis, deployment validation as well as high level change requests and tier 3 escalation support for wide range of infrastructure technologies from switching, routing, wireless, security, and firewalls. • Major design/ project accomplished including full firewall upgrades across all sites from Cisco ASA to L7 Palo Alto firewalls. Complete refresh of 2 major data centers upgrading to Nexus 9348 and 93180 switches. Implementing iWAN over DMVPN across all sites. Migration of wireless network from Cisco 5520 to Cisco 9800 series controllers with High Availability and redundancy across two datacenters. Upgraded full switching fabric across all locations from Cisco 2900 to 3650 and Cat 9k access switches with 3850 switches at the core. • Specific technologies include but not limited to Palo Alto 3320, 850, and 820 series, Cisco ASA 5520, Cisco WLC 5520 and 9800 802.1x, Cisco ISE, Nexus 5k and 9k, Cisco Catalyst 9k.

New Jersey, United States

• Senior network consultant primarily responsible for analyzing and improving the enterprise LAN/WAN infrastructure to meet the company’s operational and business needs with focus on optimal performance, high availability and security.• Additional responsibilities include acting as senior network engineer for validating network deployment and high level change requests, Tier 3 escalation support with focus on root cause analysis/resolution for wide range of infrastructure technologies from switching, security, firewalls, routing, DNS, load balancing and wireless.• Major design/project accomplished including design/build of a core layer 7 firewall infrastructure from design, testing (POC), provisioning/implementation, validation and training of the operations team • Additional project included optimizing the SIEM system to ensure key and critical alerts are highlighted and non-critical/unnecessary alerts are eliminated resulting in faster response/resolution of mission critical incidents.• Specific technologies include but not limited to Cisco ASA 5500 series, IPS, Cisco Sourcefire, , Cisco 4500 and 6500 Series Switches, Cisco WLC 2504 802.1x, LogRhythm, F5 ASM Application Firewall, Cisco StealthWatch, Cisco Iron Port, Cisco ISE, Cisco Umbrella, SolarWinds Orion, Kali Linux, Nessus Security Scanner.• Professional responsibilities include security log analysis, managing L7 and L3 firewalls, tuning SIEM and monitoring software, securing, troubleshooting and configuring switches and routers to business requirements.

United States

• Senior Network Consultant responsible for providing enterprise network infrastructure services including but not limited to routing, switching, security, firewalls, DNS, load balancing and wireless at both Data Center, Corporate and Branch.• Key responsibilities included but not limited to design, implementation, testing/validation, auditing/assessment, 2nd Tier for high level change requests, Tier 3 escalation support, training of onsite tech staff, vendor relations, client relations• Design responsibilities included conducting needs analysis, site surveys, network analysis, creating BOM, network schematics, RFP, statement of work, vendor management and consulting c level executive, directors and technical staff• Engineer/Project implementation responsibilities including creating configuration runbooks, handling new device/technology deployments, network cut overs, life cycle replacements/upgrades with heavy focus on mission critical 24/7 high availability environments such as Data Center, SCADA, and corporate headquarters.• Senior administration and escalation support responsibilities included handling and/or validating major change requests, handling complex issues with focus on root cause analysis/resolution based on meeting the client’s policies and procedures along with any relevant compliance including HIPAA, PCI and SOX, and meeting mandated SLA.• Major data center projects handled including live migrations of data center equipment from Dell, HP servers to Cisco UCS, core switch and firewall cutovers, core switch, firewall, router deployments.• Special projects handled including conducting major site surveys using predictive and active heat mapping for major municipalities, water districts and hotel/hospitality groups with access points exceeding 300.• Key technology vendors Cisco Nexus, Cisco Catalyst, Cisco UCS, Meraki, Palo Alto, Sonic Wall, HP, Dell, Juniper, Fortinet.

Usa

• Lead professional responsible for client/vendor relations, maintenance, implementation, support, planning, testing, installation, configuration and troubleshooting for various LAN/WAN network infrastructures and server systems.• Technical Responsibilities include but are not limited to routers, switches, routing protocols, security, high level of data, servers including mail, SQL and web servers, firewalls, backups, disaster recovery, site to site and remote VPN, applications and desktop technologies.• Specific technologies include but not limited to Cisco ASA 5520, Cisco 3845, 3750x, 2621, 2801, Cisco Nexus 1k, 2k & 5, Cisco Catalyst 3550 and 4503, Cisco ASA 5505 & 5510, ASA IPS 5585, Juniper EX2200, F5 Big IP, Palo Alto PA-2020 firewall, Cloud Services Router 1000V, Cisco 891 Integrated Services Router, and Cisco 2851 Integrated Services Router.

Santa Monica, California

Company Overview –Advanced Network Systems is a nationwide company who helps organizations achieve their goals and solve business challenges with the right information technology. They worked with mid-level businesses, high schools and financial organizations. Responsibilities handled:• Team member of professionals responsible for support, client relations, maintenance, configuration, installation, implementation, support and troubleshooting activities specializing in investment firms and campus Networks.• Technologies handled by the team include but not limited to routers, switches, security, firewalls, Cisco ASA’s, Cisco VPN and access control lists for LAN/WAN technologies, server and enterprise applications and desktop technologies. • Responsibilities included critical data backups, viruses, disaster recovery and following corporate policies and procedures.

Los Angeles

Company Overview –Los Angeles Unified School District is the second largest in the nation. The boundaries spread over 720 square miles and include the mega-city of Los Angeles as well as all or parts of 31 smaller municipalities plus several unincorporated sections of Southern California. Responsibilities handled:• Member to a team of professionals responsible for support, configuration, scheduled installation, procedures, day-to-day maintenance and troubleshoot activities for cross/multi-campus connectivity.• Technologies handled by the team include but not limited to security, firewalls, routers, switches and routing protocols for LAN/WAN technologies and enterprises.• Professional responsibilities included intranet, critical data backups and following corporate policies and procedures

Glendale, Ca

Company Overview – IBM is a multinational technology and consulting corporation who manufactures and markets computer hardware, middleware and software and offer infrastructure, hosting and consulting services in the areas ranging from mainframe computers to nanotechnology. Responsibilities handled:• Team member of professionals responsible for installation, configuration, upgrades, maintenance, support and troubleshooting for network, server and escalation support for IBM clientele.• Technologies handled by the team include but not limited to Cisco routers, Cisco switches, routing protocols, remote access, VPN, servers from IBM to Window’s, local /wide area network connectivity for LAN/WAN technologies, server and enterprise applications including desktop technologies. • Responsibilities included critical data backups, disaster recovery, software upgrades and following corporate policies and procedures.

Los Angeles

Company Overview – Community Technology and Education Center is a non-profit charity which brings the best low-cost adult vocational computer training from a variety of educational organizations to the residents of northeast Los Angeles. This is a remote college with LA City College. Responsibilities handled:• Member of a team of professionals responsible for maintain, configuration, support and troubleshooting for various subnets and peripherals.• Technologies handled by the team include but not limited to Cisco routers, Cisco switches, Cisco IOS, routing protocols, network connectivity for LAN/WAN technologies, enterprise applications including desktop technologies. • Responsibilities included critical data backups, disaster recovery and following corporate policies and procedures.