SUMMARY

• Experienced IT Professional with extensive hands - on experience in all aspects of design, implementation and support of complex network and computer systems. Excellent communication and interpersonal skills, problem solving and troubleshooting skills.
• In-depth knowledge of Cisco network infrastructure including design, installation and support.
• Extensive knowledge of Microsoft server, VMware Virtualization and Storage technologies.

TECHNICAL SKILLS

Network Switching: Spanning Tree, STP, VTP, VDC, VPC, EtherChannels, QoS, OTV

Network Protocols: TCP/IP, EIGRP, BGP, OSPF, RIP, HSRP, MPLS

Cisco OS and Management Interfaces: Cisco IOS, NX-OS, CLI and ASDM

Microsoft Servers: 2008, 2008R2, 2012, 2012R2, 2016

Microsoft Technologies: Active Directory, DNS, DHCP, ADFS, HA Load Balancing & Clustering Services

Virtualization Products: VMware ESXi 5.5, 6.0, Vblock, Microsoft Hyper-V Server 2012R2, 2016

Back Office Products: Exchange Server 2007, 2010, SQL Server 2008, 2012, Office 365, Skype for Business

Cloud Technologies: MS Azure, Google Applications

Network Monitoring: Cisco Works, HP OpenView, NetScout, SolarWinds Orion, What’s UP Gold, Wireshark

Cisco Routers: 2851, 2921, 3845, 7206VXR, ISR-4331, ASR-1001X, ASR-1004

Cisco Catalyst and Nexus Switches: 3750, 3850, 4510, 9348, 6509E; 5596, 5672, 7010, 7018, 7710

Cisco ASA Firewalls: 5515-X, 5516-X, 5525-X, 5580, 5585-X, Virtual Contexts, IDS, IPS

AAA Architecture: Cisco ACS, Radius, TACACS+

Cisco VoIP Technologies: Cisco Communication Manager, Unity

Cisco Wireless LAN Controllers and Access Points: 4402, 4404, 2504, 5508; 1242, 2702, 3602, 3702

IP Enterprise Management and Load Balancing: Infoblox IB1410; Citrix NetScaler VDX8200, SDX18500

Remote Access: Cisco AnyConnect VPN, Microsoft Terminal Services

Legal Document Management and Accounting Systems: iManage, Open Text PcDocs, Elite

IBM System X & Blade Servers: 3550M4, 3550M5, 3650M4, 3650M5, HS23

HP ProLiant Servers & Blade Chassis: BL260, BL460, DL360, DL380, DL580, ML570; C3000, C7000

Cisco UCS Servers: C220M3, C240M3

SAN Products: NetApp FS 8020, 8040, 8060, EMC VNC 5600, IBM StorWize3700

Backup Products: Arcserve 11, Symantec Backup Exec 2012, 2015, NetBackup 6

Technical Project Management: Advanced skills in development project plan, change management, and version control using industry standards tools and best-practices, MS Project, Visio, and MS Office Suite.

PROFESSIONAL EXPERIENCE

Senior Network Infrastructure Engineer

Confidential, NYC

Responsibilities:

• Responsibilities include network and system design, implementation, maintenance and infrastructure monitoring in the company data centers and remote offices. Analyzed enterprise architecture, network, servers and storage performance and made recommendations for improvements.
• Upgraded cisco catalyst 3750 and 4500 switches, ASA 5515 firewalls and 2921 routers legacy network infrastructure with cisco catalyst 9300, nexus 5672 switches, ASA 5525-X firewalls and ISR 4331 routers resulting in improved performance, uptime and easy administration.
• Responsible for installation, configuration and maintenance of VMware ESXI 6.0 VCenter and Host Servers and associated VSphere resources; Distributed Resource Scheduling (DRS), High Availability (HA), Fault Tolerance (FT), storage and enhanced VMotion (EVC), distributed switches (VDS).
• Responsible for managing separate VMware Production, HVN and Development clusters.
• Extensively worked to troubleshoot VMware system, network and storage issues, Root Cause Analysis, incident and problem management.
• Upgraded DNS & DHCP services from the legacy Windows 2008 servers to redundant virtualized Windows 2016 servers which resulted in increased performance and availability.
• Managed Active Directory Infrastructure; domain controllers, sites, subnets, organization units, group policies, users and groups.
• As part of Data Centers server and storage infrastructure consolidation and virtualization project migrated storage from legacy directly attached storage (DAS) and ISCSI SAN to the fiber channel NetApp and EMC VNC SAN that resulted in improved performance, redundancy and management.
• Performed upgrade, maintenance and patching of Cisco routers, Catalyst and Nexus switches, ASA firewalls and storage Infrastructure; NetApp and EMC SAN and cisco MDS Fiber channel switches.

Senior Network Engineer

Confidential, NYC

Responsibilities:

• Responsibilities included network and system infrastructure installation, upgrade, maintenance and monitoring in the company headquarters, DR colocation center and regional offices.
• Upgraded and consolidated VPN remote access infrastructure consisting of cisco vpn concentrators into redundant cisco ASA 5525-X firewalls allowing users secure, reliable remote access to the company applications and services.
• Provided installation, maintenance and support of multiple VMware environments in HQ and regional datacenters with over 40 vSphere hosts and 600 virtual machines.
• VMware ESXI 6.0 Host Servers Installation, configuration, maintenance, physical to virtual (P2V) migration, virtual machines installation, cloning, utilizing customized templates to expedite vm deployment.
• Migrated middleware application from the stand alone physical servers to the virtualized system based on HP C7000 blade system and VMware 6.0 virtual platform.
• Active Directory administration; creation and maintenance of organization units, group policies, users and groups.
• Upgraded and replaced network, server and storage equipment, maintaining OS software up to date based on vendor’s recommendations.
• Performing network monitoring by utilizing Cacti, MRTG and SolarWinds Orion suites allowing proactively monitor network and systems performance and address potential problems before they affect company offices connectivity, application delivery and voice communication.

Senior Network Engineer

Confidential, NY

Responsibilities:

• Planned, designed, installed and upgraded network infrastructure in company global & regional HQ and remote offices.
• Implemented network infrastructure upgrade in AVON HQ utilizing Cisco Nexus 7018 and 5596 switches, 2248 fabric extenders.
• Upgraded WAN Edge infrastructure utilizing ASR-1001X & ASR-1004 routers.
• Migrated Cisco standalone ASA 5550 firewalls, to a fully redundant ASA 5585-X firewall appliance bundle utilizing virtual contexts.
• Upgraded Wireless network infrastructure utilizing high performance Cisco WLC 5508 and AP 3702 wireless lan controllers and access points.
• Build High Performance SQL server farm based on a virtualized Windows 2012R2 servers cluster system housed in a IBM H Class Blade server platform for the E-Commerce application that resulted in increased uptime, performance and manageability.
• Installed and maintained VMware 6.0 infrastructure, consisting of HP C7000 blade systems, Cisco MDS fiber channel switches and NetApp FS storage appliances.
• Active Directory administration and management; creation and maintenance of users, groups, group policies and organization units.
• Participated in a company Disaster Recovery exercises simulating entire and partial loss of IT Infrastructure with subsequent restore of lost infrastructure in the DR Data Center within SLAs.

Senior Network Engineer

Confidential

Responsibilities:

• Planned, designed and implemented Network Infrastructure upgrade in the new Data Center utilizing Cisco Catalyst 4510, Nexus 5596 and 4000i switches, 2691 routers consolidating network infrastructure into redundant, high speed and capacity capable infrastructure making an optimal platform for provisioning applications and services delivering it on time & within the budget.
• Upgraded wide area network infrastructure from sonic wall firewalls and disperse ISP providers to the Cisco ASA 5515-X firewalls and standardized on Cogent and Verizon ISP simultaneously achieving performance increase, redundancy, network stability & savings.
• Designed and implemented wireless network infrastructure based on Cisco 2504 wireless controllers & 3602 access points allowing users, firm tenants and visitors fully independent protected and secure wireless access.
• Administered & supported firm phone system infrastructure utilizing Cisco Communication Manager and Unity systems.
• Performed Active Directory Upgrade from legacy Windows 2003R2 to 2012R2 domain controllers bringing Active Directory to the current level and able to support new applications and services.
• Managed Active Directory infrastructure; Organization Units, sites, subnets, group policies, users and groups to adhere to the business needs, security & compliance policies.
• Migrated and consolidated firm servers infrastructure from disperse stand-alone physical server systems into high availability virtual environment based on VmWare ESXi 5.5 and IBM blade servers providing highly capable virtual platform for mission critical applications.
• Upgraded storage from a direct attached to a multi-tiered SAN storage environment, creating scalable highly redundant storage system, providing security and protection of snapshots and staggering backups.
• Planned and implemented secure redundant remote access solution utilizing Cisco SSL VPN & MS 2012R2 remote desktop services virtualized server farm, providing firm users secure dual authentication based on AZURE Cloud technologies for the firm’s applications & services.
• Upgraded E-Mail system from standalone Exchange 2003 environment to the high availability clustered, virtualized Exchange 2007 servers environment, building clustered server farm for the mailbox, hub transport & edge servers. Evaluated and performed migration of on premises exchange 2010 email system to the Office 365 Platform.
• Implemented Cloud based Email redundancy, protection & archiving utilizing Google Applications Continuity & Vault services allowing users continue to use email during email maintenance, access to archived email & protection against email malware & viruses.
• Upgraded firm mission critical multi-tiered PcDocs document management system consisting of DM, MS File and SQL servers from standalone systems into redundant virtualized environment.
• Implemented firm backup and Disaster recovery infrastructure utilizing Symantec Backup Exec & IBM StorWize SAN creating two-tier onsite and offsite hierarchical backup system allowing for a quick backup and restore of mission critical data, applications and long-term archiving.

Senior Network Engineer

Confidential, NY

Responsibilities:

• Designed and implemented LAN upgrade in headquarters using Cisco 6509, 3560 and 3750 series switches allowing gigabit network access to the servers in the Data Center and user’s desktops, providing increased uplink bandwidth from the access to the core switches, redundancy and high availability at the network core.
• Upgraded firm internet access infrastructure from 2 separate T1 lines to 6 T1 lines multilink bundle increasing 3 times available bandwidth, allowing much improved remote access and web hosting.
• Designed and implemented B2B site to site and remote access VPN solutions utilizing Cisco ASA 5520 firewalls allowing business partners, sales and marketing groups secure redundant high speed access to the corporate applications and services.
• Planned and implemented wireless access solution in headquarters and satellite offices based on Cisco 1130 access points working in conjunction with cisco wired infrastructure allowing marketing representatives and remote users roam between offices and have seamless wireless access to the network applications and services.
• Upgraded and consolidated firm stand-alone MS SQL 2000 servers into high-end redundant MS SQL 2005 cluster systems resulting in less overhead, better utilization and increased availability.

Network Engineer

Confidential

Responsibilities:

• Planned, designed and implemented LAN infrastructure upgrade in NY headquarters and remote offices utilizing Cisco 6513, 6509 and 4507 series switches allowing gigabit network access to the user’s desktops, providing redundancy and high availability to the network core, utilizing MSFC modules and HSRP and EIGRP routing protocols, that resulted in increased productivity due to much improved network up-time and quicker application and data processing.
• Designed and implemented firm-wide fully meshed VPN network utilizing Cisco 2651, 2691, 3745 routers and PIX515E and 525 firewalls allowing remote offices to have a redundant path to the headquarters and other remote offices, giving benefit of secure local internet access w/o saturation of WAN bandwidth with Internet traffic.
• Planned and implemented secure redundant remote access solution utilizing Cisco authentication-proxy, Cisco Secure server and RSA radius server, giving users secure redundant token based remote access solution to the Citrix, Exchange and Elite (Accounting) servers.
• Designed and implemented Enterprise based Infrastructure monitoring solution based on CA-Unicenter Cisco Works LMS, NetScout and nGenius applications, allowing proactive monitoring and timely addressing of network, storage and applications performance issues.
• Designed and implemented Firm-Wide wireless network utilizing Cisco 1200 aironet access points and wireless vlan and trunking technologies, working in conjunction with cisco switches allowing users and firm clients while working together on a project secure, independent wireless access to their respective network environments and applications.