Escalation Network Engineer
Verizon/ Terremark
Total years of experience :24 years, 1 Months
Provide support from scheduled changes to security breaches and network outages, to managed
and eCloud hosting customers.
-Support and troubleshoot network bottlenecks and assisted in expansion of existing network
infrastructures for various cloud and managed customers.
- Supported and implemented sit-to-site and web VPNs, and provided networking needs from load
balancing to security implementations.
-Configured Citrix Netscalers regular, content based VIPS, rewrites, primary/backup services
GSLBs, SSL/FIPS, Routes ACLs, etc
-Configured F5 load balancers for VIPs, Priority groups, iRules, iApps, SNAT, Profiles for SSL
and other attributes.
-Have dealt on severity 1 issues of resolving network outages, DOS attacks, Break/fix or
emergency changes.
-Manage support queues for daily customer request for break/fix and scheduled eCloud, LAN,
WAN, MPLS, etc network access or security optimization change requests.
-Upgrade and install Cisco ASA firewalls, Routers, Citrix Load balancers, core, distribution and
access layer 3750, Nexus 2000 and 5000 and 7000, 6500 Series switches.
-As a team lead in my group, trains new comers in managing their queues and provide guidance on
how to resolve incidents and being as a first escalation path to incidents that need escalations.
Richardson Regional (Methodist) Medical
center, Richardson, TX)
Sr. Network Security Engineer: (06/2005-02/2011) Richardson Regional (Methodist) Medical center, Richardson, TX)
-Provided Support for wired and wireless LAN and WAN, through a proactive maintenance of 6509 series Cisco core Switches, Qos mechanisms to shape traffic. Management and maintenance and monitoring of ASA and PIX firewalls, IDS/IPS policy update for inline and promiscuous monitoring and making sure it is in line with HIPPA and other compliances.
-Deployed a Cisco 2.0 datacenter with a redundancy and failover DR sites, with a successful implementation of Cisco 6509 Core switches, 4532 IPS sensor and Cisco Firewall/VPN Concentrator ASA 5510 and controllers wired and wireless VLANs and distributions and access layer (3750) switches with STP, RSTP, LACP, PAGP, and other redundant and virtualization/link aggregation mechanisms like ether channel, GLBP, HSRP interfaces.
-Configured 2500, 2800, 2900, 3644, 3750 switches at the distribution and access layers of the organizations, using industry standard best practices and comply with all regulations. (HIPAA, Etc.)
-Designed and implanted (as Lead) the deployment of (HIM) Health Information Management System to all clinics and Senior health centers, to facilitate access and privacy of databases and centralized CC cameras and Cisco video conferencing tools.
- Managed a digital VOIP solutions by designing a four digit calling plan to all the remote sites regardless of their locations through deployment of Cisco Call Manger server, 7965 and 7911 Cisco IP phones with Cisco 2800 Voice Gateway router connected to a voice T1 lines provided by a local phone service provider.
-Deployed Cisco 7921 wireless phones for all over the hospitals and clinics utilizing secured Cisco 4400 Wireless LAN controller thereby providing a guest and secured wireless internet services to the public and mobile users.
-Responsible for converting flat networks legacy network into a Cisco best practice hierarchal designs.
-Deployed management of security/monitoring devices for wired and wireless remote LANs. (3015 VPN concentrators, 515 PIX firewalls, Routers, 4400 Wireless LAN Controllers, ASA, WLSE, ACS, CISCO Works, IDS and MARS to monitor and manage network services to country and state hospitals.
-Responsible for setting up secured Site-to-site, Clientless/Web and Client-to-Site VPN connections with vendors and remote sites for real time data transferring interfaces to hospitals HIM data.
-Installed Anti-virus /Spam filters and web filters (Hardware proxies).
-Designed a DMZ (Demilitarized Zone) at the point of network entries to place “front end” SMTP, DNS and web servers.
-Worked on Windows Active Directory and implemented policy based computing through creation of functional OUs; in relation to employee's duties and physical locations.
-upgraded the NT domains to WIN 2003/2008 AD domains and restructured OUs for better utilization of login and other scripts, essential for security and ease of use.
-Migrated the stand-alone Exchange 2003 servers to a SAN (Cluster) based mail servers and recently migrated resources to 64 bit Windows cluster based Exchange 2010 messaging systems.
-Supported an IBM DS4000 fast SAN with 64 terabyte storage space for multiple cluster storage needs and as part of a disaster recovery and business continuity contingency plans.
-Led multiple Projects and managed hospital service vendors (GE, Phillips, Siemens, Sophos, Barracuda, etc.) through the deployment of security and other network/medical/Security devices including close circuit Cameras.
-Assisted in the formulation of an IT security and infrastructure support departments with provisions of basic training in remote support tools, helpdesk management, network sniffer tools (Wireshark, omnipeek, and nmap and other TCP/UDP port scanners) and equipped the security team with forensics (Encase) tools.
Responsible for re-designing the IT department with a 2 million dollars annual budget of
conversions from legacy systems.
-Revamped the old network (Main frame) to a highly scalable and secured network infrastructure.
-Coordinated various committees to redo the whole infrastructure changes.
-Apart from the daily administrative tasks I have also participated and lead various projects to
shorten the recovery period significantly.
-active directory windows 2003 domain along with installation, configuration and maintenance
of (137) Servers and a Frame relay WAN and LANs throughout the City.
-Provided Support for the 25 remote locations and production servers, (SQL, Email, Terminal,
print and file servers) Cisco 750.2100, and 2400 series routers and a PIX firewall configuration and
maintenance of layer 2 and layer 3 links utilizing all the types of circuits including metro-Ethernet.
-As a project lead coordinated the domain upgrade from NT to 2003 active directory, and the
Exchange 5.5 to Exchange 2003 and addition of a Black Berry server for mobile users.
-Implemented a helpdesk system to automate client requests and MIS response through 3rd
party
solutions.
-Installed and configured Microsoft system Management server for automation of MIS tasks.
-Worked on switch deployment and VLAN setups.
-Drafted a company policy for a healthy and safe computing during company time and on company
assets.
-Design and Maintenance of an intranet/ IIS 6 web servers to reduce paper work and expedite
internal company business through a web based applications and an extranet (IIS 6) for public
consumption of Electronic file delivery system. Installed and configured MS Sharepoint 2003 for
intranet and extranet usage.
-Designed disaster recovery plans and implemented a sound backup and restore System.
Managed an IT network which have all flavors of connectivity and solutions.
-Installed and Configured the Citrix Meta Frame Servers/Widows terminal servers and (ICA)
clients to access Published applications and UNIX database Servers, CC IP cameras, Video conferencing tools.
-Installed and configured DNS, WINS and DHCP services.
to support maximum availability to host machines and internet connectivity.
-Support more than 600 workstations, 135 thin clients and 67 Servers in house and remote
Locations.
-Migrated exchange 5.5 to an exchange 2003 Server environment.
-Designed the company intranet and extranet pages also created a Video library and archive system
by converting VHS tapes to digital formats for indexing and ease of search.
-Supervised and organized the helpdesk department and setup mass computer deployment system
by pushing images to workstations.
-Trained location support individuals (Super Users to train others.)
-Setup remote support tools for various city hall programs like after school to keep kids away from
drugs and other undesirables.