SUMMARY:

Senior Systems / Network Engineer with almost 9 years of work experience on the technologies mentioned below and who is creative in identifying and designing effective solutions to meet the current needs and future expectations of the business.

AREAS OF EXPERTISE IN:

• Experience in data center system management and operations. Experience supporting 7x24 production, test and development environments. Providing on - call support whenever required.
• Experience in multiplatform Linux and Windows environments, with hands-on expertise in scripting (Korn and bash) and PERL programming.
• Windows NT, 2000, 2003 and 2008 administration.
• Proficient and well experienced in installing, configuring and administering the Apache, Tomcat, MySQL, Web Logic, and JBoss.
• VMWARE ESX infrastructure administration, SAN Storage administration and VOIP support.
• Experience with system and storage sizing, capacity planning, system tuning and system integration.
• Experience with server/kernel performance tuning, system monitoring and system network interface load balancing.
• Strong hands on experience in routing and switching on both Cisco and Juniper devices.
• Network protocols configuration and administration - Involved in configuring EIGRP, OSPF, RIP and BGP.
• Firewall management - Administration of the Checkpoint, ASA, Juniper Net Screen and Cisco PIX firewall.
• F5 load balancers (LTM & GTM) configuration, administration and troubleshooting. Have good experience working on both 9.0 and 10.1 versions.
• LAN and WAN administration and troubleshooting.
• Good exposure in working on the data center which consists of high availability production environment with 600+ servers.
• Experience with VERITAS server management. Experienced with EMC SAN Administration, NetApp & NAS administration.
• Experience with MS Exchange 2000/2003/2007 and 2010 administration.
• Proficient in working on network monitoring tools like Sniffer, Cisco works, solar winds and ETL tools.
• Strong hands on experience working on the software configuration management tools like - Puppet, ant, subversion and Hudson and monitoring tools like Nagios, Net Cool and Trip Wire.
• Citrix Metaframe XP and Citrix presentation server, Citrix Xenapp installation, administration and giving support.
• Experience administering Oracle 9i/10g & Microsoft SQL Server 2000/2005/2008.
• Strong knowledge in writing PL/SQL, stored procedures, functions, packages and triggers, Advanced Queuing, DBMS Jobs. Proficient in Oracle database administration.
• Experience providing on-call, duty pager and weekend support. Remote system administration experience.
• Development and implementation of policies and standard procedures and other documentation.
• Proficient in hardware and software troubleshooting and problem determination/resolution.
• Expertise in working with the financial industry and for projects involving post-trade operations.

TECHNICAL SKILLS:

Operating systems: MS DOS, Linux, UNIX, WinNT, Win 95, Win 2000, Win2003, WinXP, Netware

Networking Technologies: TCP/IP, IPX/SPX, LAN/WAN, WLAN, FTP, HTTP, DHCP, DNS, WINS, VPN, VOIPVMware, Multicast, IP/MPLS, IPSec, SAN, QIP

Hardware: Cisco 1600/1800/2500/2600/3640/3810/6500/7206/7500 Confidential Power edge servers

Protocols: RIP, IGRP, EIGRP, OSPF, BGP

WAN Protocols: PPP, ISDN, Frame Relay

VMware: ESX 3.0/3.5, Virtual Center 2.X, VMware View 3.x

RDBMS: SQL Server, Oracle.

Citrix Technologies: Citrix Presentation server, Citrix Metaframe XP, Citrix Netscaler

Servers: Apache 1 &2, Tomcat, IIS, JBoss, Websphere

Directories: Active Directory, Open Directory, E-Directory, Sun One, OpenLDAP

Programming Languages: C, C++, Java

Scripting: PERL

PROFESSIONAL EXPERIENCE:

Confidential, Sunnyvale, CA

Linux Systems Engineer

Environment: Red Hat Linux, Amazon AWS, Web logic, Apache, Tomcat, MySQL, EIGRP, BGP, Bluecoat, VMWARE ESX 4.5/5.0, VERITAS, Active directory, Oracle 11g, Nagios, Sniffer

Responsibilities:

• Provisioning installation, configuration, operation, and maintenance of systems hardware and software and related web infrastructure and production systems.
• Working the tickets that are submitted for any issues related to system infrastructure and resolving them.
• Installation, maintenance, monitoring, and support of Red Hat Linux servers.
• Worked extensively in maintaining and enhancing the Confidential environment - YWA ( Confidential web analytics).
• Installation, configuration, maintenance, monitoring, networking and support of large data center of enterprise class Red Hat Linux servers and software.
• Responsible for administering several UNIX servers. Services maintained include mail (send mail), web (apache), DNS (bind), authentication (RADIUS, TACACS+), FTP, TFTP, and system monitoring software.
• Drive software design, implementation, and performance for next-generation Confidential Local Markets & Commerce platforms.
• Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, verification of scheduled jobs such as backups.
• Implementing application deployment on Amazon AWS cloud infrastructure. Responsible for the performance analysis and capacity planning to ensure the existing Cloud infrastructure can support the new projects.
• Installing and configuring VERITAS Cluster Server with VERITAS Volume Manager, and Oracle Enterprise Agent. Installing and configuring Cluster Services also to provide high availability.
• VMware ESX 4.5 /5.0 installation, management, design and implementation.
• Managing apache configurations. Responsible for managing virtual hosting and load balancing.
• MySQL server optimization, query optimization, capacity planning, server build outs, and various kinds of scripting, including via cfengine.
• Provide administration of Proxy Management based applications, like Blue coat and providing configuration management tools with these servers to create a stable, compliant and efficient network.
• Management of access control list and route base policies on layer 3 devices.
• Configuration and management of SYSLOG, SNMP and MRTG attributes and monitoring software like solar winds.
• Involved in the configuration of the protocols such as EIGRP, BGP and IPSec.
• Imaging and deployment of new machines as necessary, including appropriate DNS modifications and adding servers to the centralized management pool.
• Providing support all key infrastructure services: BIND DNS, SNMP, LDAP, Kick start, Postfix.
• Monitoring the database servers (ITDB servers) on Nagios. Working on getting these servers up and running when they go down. Working on configuration management tool - Puppet.
• Working on the Linux networking tools like telnet and tcpdump.
• Installing, maintaining and administering Web logic servers. Installing and configuring Tomcat, Apache and MySQL applications.

Confidential, San Francisco, CA

Senior System Administrator

Environment: SuSE Linux, Red Hat Linux, Windows 2008, Tomcat, Web Logic, JBoss, F5 Big IP 6900/8900, Cisco Nexus 7000/5000/2000 , Checkpoint, Bluecoat, Apache, VMWARE 4.5, NetApp, JMS, VERITAS, ORACLE, SQL Server

Responsibilities:

• Serve as a middleware administrator managing IBMHTTPServer, ApacheHTTPServer, Web Sphere Application Server, Web Logic, IIS and Tomcat.
• Working on continuous integration tool “hudson” which runs on Apache server to implement the software configuration management.
• Working in the tomcat configuration like thread dump, heap size etc…
• Installing, configuring, supporting and maintaining VMware ESX Server 4.5 and Virtual Center 2.X. Troubleshooting VMware ESX server related issues, maintaining the virtual server environment, creating and deleting virtual servers and backup scheduling.
• Windows 2008 active directory administration.
• Manage and provision shared storage using NetApp Filers to production systems.Deployed Nagios to monitor availability and health of NetApp filer appliances including writing Nagios services.
• Checkpoint configuration and administration. Creating new firewall rules. Troubleshooting the issues related to firewall rules.
• Bluecoat proxy setup, configuration, upgrade and troubleshooting.
• Installed Cisco Nexus 7000 series core switches and Nexus 5020 and 2248 server access switches. Configured 7000’s with multiple distribution VDC’s running EIGRP for route propagation between them.
• Designed production data-center network infrastructure on Cisco Nexus switching platform.
• Install and maintain security infrastructure, including IPS, IDS, log management, and security assessment systems. Assess threats, risks, and vulnerabilities from emerging security issues. Publish Security Updates newsletter for technical groups. Draft enterprise security standards and guidelines for system configuration. Implementation of IDS and IPS on to the existing network.
• Install, maintain, upgrade and support J2EE applications in development, test, and production systems running Web Logic and JBoss application servers on Red Hat Linux systems w/ Oracle 10G RAC database.
• Effectively automated Web Logic 8.1 Domain and Managed Server builds using shell scripts and thus reducing manual domain builds.
• Deployed VERITAS Cluster Server over Oracle 10g. Installed and configured VERITAS Cluster Server using E4500s with Oracle and Apache agents over dual 57xx EMC Clarion arrays.
• In depth engineering work on F5 load balancers, including configuration and complete administration work on the routing protocols BGP, EIGRP, TCP, SSL, TLS, and application layer protocols including HTTP, SSH, SSL, and DNS.
• Working on F5 load balancer versions v9.3 / v9.4 and v10.1 - Executing configurations on the F5, including OS upgrades, trunking, and general troubleshooting of the devices. Designing, coding, and troubleshooting iRules and iControls. Implementing load balancing strategies/ techniques, application switching / traffic management, persistence and SSL certificates.
• Install, configure and manage Linux servers.
• Administering the configuration management tool - SVN.
• Participate in capacity planning and disaster recovery exercises.
• Supported middleware infrastructure and applications on 24/7basis.
• Participate in application release cycles. Participate in datacenter power down activities.
• Enable and manage SSL certificates

Confidential, New Jersey

Senior Network Engineer

Environment: Cisco - 6500/3750/4500/7200/7600 , Cisco Nexus 7000, Windows 2003, 2008, Vista, Red Hat Linux, Active directory, Juniper Net Screen, MS SQL 2005/2008, Oracle 10g, VMWARE 4.0, SAN, SNMP, Apache, Web logic

Responsibilities:

• Perform systems backup and recovery on servers existing on the Linux operating system.
• Windows active directory administration. Planning, Implementing and Maintaining Microsoft Windows server 2003 & 2008.
• Cisco routing and switching.
• Design, installation, configuration & administration of the two new completely restructureddatacenters with Cisco Nexus 7000 and Catalyst 6500 Series.
• Implementing SCM tools like ant, subversion and AVS for the build management.
• Working on configuring high availability deployment manager environment. Working on high availability installation and administration. Setting up a high availability load balancer with failover and session support. Managing and maintaining high server availability through active performance monitoring.
• Responsible for proper integration of multiple operating systems including Windows 2008 Active Directory, Windows XP, Linux, and Mac OS on all servers and workstations.
• Troubleshooting VMware ESX 4.0 server related issues, maintaining their virtual server environment, creating and deleting virtual servers and backup scheduling. Development of the ISCSI initiator on VMware ESX platform.
• Performed architectural design, implementation and project management for Windows 2003 and 2008 infrastructures including active directory design, high availability MSCS clustering, and Network Load Balancing (NLB) using IIS 6.
• Installing, maintaining and administering Web Logic and apache servers. This includes providing support and troubleshooting the issues related to these application servers and rolling out these application on the mobile devices.
• Helped to implement SAN, including configuration and enhancing platform security.
• Performed complete documentation of all systems, including system design, operational history, backup program, disaster recovery procedures and patches.
• Juniper Net screen firewall configuration and administration.
• Design and implement secure internet usage policies using Bluecoat Proxy SG and multiple firewall platforms.
• Configuring and administering the routing protocols like BGP and RIGRP.
• Developing and implementing security standards, procedures, and guidelines for multiple platforms and diverse systems environments (e.g. corporate, distributed and client server systems).
• Implementation of IDS and IPS on to the existing network.
• Sniffer - Wire shark installation and administration.
• Working on the monitoring tools like envision, solar winds, Zyrion, Net Cool, Nmap etc.
• Install and administer MS SQL 2005 and 2008 with appropriate service pack.
• Determine proper RAID to endure fault tolerance.
• Using SQL Query Analyzer to run scripts as needed. Generate ad hoc SQL queries and reports.
• Installed and configured Oracle database server, upgrades and patch-sets.
• Developing shell script to take logical backup, hot backup and purge old backups from oracle database.

Confidential, Newyork

Network Administrator

Environment: Red Hat Linux, Windows 2000/2003, Cisco - 2800/ 6500/3750/4500/7200/ 00 , Intel server, Active directory, EIGRP, OSPF, BGP, HP-Open view, VitalQIP 7.1, SNMP, VMware 4.0/3.5, VERITAS, Apache, Web logic, JBoss, NetApp, HTML, Citrix, Oracle 10g/11i, RAC

Responsibilities:

• Management and configuration of all network and server operating systems and hardware including firewalls, routers, switches, and also Linux and Windows web/application/database servers & management systems.
• Developed and deployed standardized operating systems with Windows Server 2000 & Windows Server 2003.
• Setup & maintenance of 5 node/fibre channel connected VMware 3.5/4.0 cluster for development and quality assurance environments, usually running over 250+ Linux and Windows Desktop and Server instances.
• Coordinate the installation, functionality and maintenance of NetApp Filer 3140 HA. Installation and migration of VMware virtual machines from Hitachi SAN to NetApp Filers.
• Cisco router and switches configuration and administration.
• Installing/configuring Checkpoint NGX R65. Provided high level network security guidance and overall IT security strategic direction while managing 16+ Nokia Checkpoint FW-1 appliances running IPSO 4.0.1 and Checkpoint NGX R65, a majority of which are run in HA mode using VRRP.
• Setup and configure Linux/Apache servers for development projects.
• Windows 2003 active directory management.
• Responsible for the design, implementation, upgrade and maintenance of Intel-based server architecture.
• Establishing and maintaining high availability server.
• Installing, configuring and administering Web Logic and JBOSS application servers.
• Installing and setting up Jumpstart on to the system and managing them.
• Designed management servers running Internet Information Server (IIS), Altiris Notification Server, VERITAS Backup Exec, and Big Brother.
• Cisco Wireless LAN controller configuration and administration.
• Configuring and administering F5 Load balancers 6900, 8900 and 3600.
• Cisco ASA administration.
• DMZ asset management using HP-Open view.
• SAN Storage configuration and administration.
• Involved in Citrix server installation, configuration management, security, and monitoring and tuning, troubleshooting and related vendor interfacing.
• SQL Server 2005 administration.
• Supported Disaster recovery initiatives.
• Worked on UNIX/Linux Shell scripting and on PL/SQL Scripting.
• Knowledge of T/SQL syntax including the ability to create, debug and optimize database objects.
• Experience with production support of 7x24 business critical databases.
• Excellent knowledge and experience on Oracle backup, restore, installation and disaster recovery scenarios.
• Excellent knowledge of Oracle Security management.

Confidential, Minneapolis

System Administrator

Environment: Red Hat Linux, SQL Server 2000/2005, Apache, IIS, BGP, VLAN, SAN, XML, KVM, Oracle9i, active directory, .NET Framework, Weblogic 8.1

Responsibilities:

• Performed comprehensive network management functions (i.e.) design, implementation and administration of all nodes of internal network such as: firewalls, VPN, switches, routers, wireless networks, XCA, VIPA, active directory domain, DHCP servers, DNS servers, Linux servers, Microsoft SQL servers and web servers ( Apache and IIS ) etc.
• Administration & management of Red Hat Linux based cluster system of 50 compute nodes in Linux based networking environment.
• Supporting and managing KVM infrastructure in Linux operating system.
• Implementation, change management, operations, and rule management of firewalls, data extrusion appliances, application firewalls, intrusion detection systems/ intrusion prevention systems, as well as enterprise-wide anti-virus and anti-malware systems. Implementing SNORT IDS to protect the network from the intrusion.
• Configure, monitor and troubleshoot basic BGP to enable interdomain routing in a network scenario with multiple domains.
• Designed and configured the LAN and WAN infrastructure consisting of routers, switches, load balancers and servers.
• Managing the multicast networks.
• Developed and maintained a number of tools to assist the Network Engineering group in their tasks, including project management tracking, tracking IP, VLAN, and BGP community allocations, visualizing switch-fabric topology, and visualizing BGP route-reflector topology.
• Implementing, configuring and maintaining Web Proxy devices.
• Managing network appliances such as Riverbed, RSA, bluecoat and others.
• Implementing high availability load balancing. Configuring and maintaining the settings for high availability server.
• Implemented TCP/IP and related services - DHCP, DNS and WINS services. DNS/DHCP administration using VitalQIP.

Confidential

System Administrator

Environment: Windows NT/XP/2003, LINUX, IBM Web sphere Application Server 4.0, Cisco - 1600/2600/5500/6500/7500 , SAN, RAS, IBM Rational Clear case, Active directory, LDAP, MS-Exchange 2003, Apache, Sniffer, Oracle 9i, PL/SQL, HP Open View, VMware

Responsibilities:

• Perform software installation, upgrades/patches, troubleshooting, and maintenance on UNIX servers.
• Responsible for capacity planning, including allocating storage, providing hardware and software redundancy, and planning future expansion requirements.
• Participate in root-cause analysis of recurring issues, system backup, and security setup.
• Apache Tomcat configuration and administration.
• Maintain Web servers, file servers, firewalls, and directory services, and set up user accounts.
• Administering the web sphere application server and managing web based applications which are configured on the server.
• Installation, management and configuration of active directory services.
• Troubleshooting VMware ESX server related issues, maintaining their virtual server environment, creating and deleting virtual servers and backup scheduling.
• IBM Rational Clear case management.
• Designed and configured the LAN and WAN infrastructure consisting of routers, switches, load balancers and servers.
• Involved in the configuration of the protocols such as RIP, EIGRP, OSPF and BGP.
• PIX firewall and Checkpoint firewall design, implementation and configuration.
• Designing Citrix Metaframe XP. Publishing applications on Metaframe XP. Managing Citrix ICA clients. Implementing session shadowing. Installing and administering Metaframe Presentation server.
• Research and develop designs, including strategic road map for all infrastructure SAN/storage devices and associated software and tools, ensuring enterprise-wide architecture consistency. Responsible for maintaining the SAN fabric and arrays, implementing new devices, performance monitoring, capacity monitoring, load balancing and provisioning of storage.
• Working on the tool like IBM director 6.1 to simplify the management of physical and virtual platform resources.

Confidential

Network Administrator

Environment: Red Hat Linux, Windows NT/2003, VMware, QIP, HP open view, Active directory, Web logic, Sniffer

Responsibilities:

• Preformed administration, including planning /implementing strategies on all Linux and Windows servers.
• Support and maintain active Directory replication, creating standard process for group policy deployment, active Directory users and group’s management, implementation and administration of DNS, DHCP and WINS.
• Deployed VMware ESX hosts, defined and automated company standards for configuration. Created and documented process for deploying virtual machines on VMware.
• F5 GTM and LTM load balancing implementation.
• Implementing Layer 3 switching design.

Confidential

System Administrator

Environment: Windows 98, Windows NT, Windows 2000, Active directory

Responsibilities:

• Windows 2000 Active Directory administration.
• Installed and configured DHCP Client/Server. Managed and administered the DNS and DHCP servers.
• Implemented HP-Open view for network management.