SUMMARY:

• Experienced Sr. Systems, Storage and Network Engineer with over 18 years’ experience. Successful track record of increasing productivity, efficiency, and profit margins through implementation of advanced technological solutions. Strong combination of applications / equipment knowledge with tested leadership and motivational skills. Senior level experience in hands on and management of IT teams and network infrastructures on a global scale; possess broad base of knowledge in a variety of network protocols, operating systems, software, contingency planning and data recovery.

TECHNICAL SKILLS:

Hardware & Systems: Sun (Servers, disk arrays and desktops), Silicon Graphics SGI, HP/Compaq, Dell and other Intel/AMD - based PC's and servers, NetApp and Sun Raid, Hitachi Storage, Apple, Cisco, Foundry, Nokia, Cabletron, HP and Xerox printers, SecurID, Interactive Intelligence PBX, Sr. Unix Expert, worked with many unix tools, Perl, MySQL, UNIX Infrastructure Architecture, High-Availability Clusters, Failover Clustering.

Operating Systems: RHEL (Red Hat Linux - all versions) Sun Solaris, VMWare ESX 3.5, 4.0, ESXi 4.1, VirtualCenter (now vCenter), vMotion, Vmware HA, DR, SRM, MacOS X, FreeBSD, OpenSuse, CentOS, Ubuntu, SunOS 1.x, MS Windows, MCSE Level, AT&T UNIX (SVR3, SVR4), Novell CNA

Protocols & Networking: NFS, SMB, HTTP, HTTPS, TCP/IP, IPX/SPX, HDLC/SDLC, UUCP, NNTP, NTP, FTP, INN, PPP, PPTP, IPSec, IKE, NAT, SSL, DNS: operated 5 DNS servers for a class B Network with about 5000 hosts in the zone files, Cisco routers,(Level of a Senior Network Engineer - CCIE in 1998) Active Directory, DHCP, both on Unix and Windows 2003/2008, Sonicwall Firewalls: E-Class NSA Series, NSA Series as well as SSL-VPN s, Content Filtering, Wireless Sonic Points and more.

Messaging: Unix Mail Servers (Sendmail, Qmail, Postfix) Microsoft Exchange (5.5, 2003, 2007 and 2010) email messaging expert.

Software: PERL, Sun WebServer7, Veritas/Symantec VCS & VxVM, GNU tools, Apache 1 & 2, Tomcat 4 5 6 7, JBoss, JVM, SAMBA, LDAP, Checkpoint, Weblogic, HP, TACACS, RADIUS, HTML, SSH, C, K & Bourne Shells, Expect, AWK, Telnet, FTP, NNTP, INN, NIS, DNS, Sendmail, WireShark, snoop, tcpdump, nmap, NTP, SMAP, MS Office Suite along with an extensive list of PC and UNIX applications.

PROFESSIONAL EXPERIENCE:

Principal Systems and VMware Engineer

Confidential

Responsibilities:

• Short term contract to migrate existing Vmware infrastructure to a new HP C7000 blade architecture, FlexPod, with enterprise level reliability, higher RTO/RPO’s, and advise on a suitable backup architecture between 2 data centers nationwide.
• VMware work: Create a new VMware 5.5 cloud, over 5 HP Blades in a new C7000 chassis, install a new vCenter appliance, configure 3 vlans for Storage, vMotion and Management, Virtual Distributed Switch (switch entire architecture to Enterprise Plus) installed and configured VUM (VMware Update Manager server)
• Additional VMware work: Deploy a vMA appliance in order to clone ESXi servers for international and national deployment of systems. 
• Backup System: implemented a Veeam backup server as well as vCOPS for monitoring, SRM between data centers.
• RedHat/Ubuntu: Solve high level Redhat/Ubuntu issues both in Production and QA. Created Redhat/CentOS repository for all the VM’s and templates on the new infrastructure.
• Confluence: Separating a large Confluence installation from a one VM architecture to a Application/Database architecture and improving performance considerably.
• Server Harware: HP C7000/BL460c Gen8 blades, DL380p servers, Dell R710/R720’s, R320/R420/R520’s.
• Storage work: Solve issues with existing NetApp FAS8040’s and FAS3140’s, configure various aggregates for performance and others for tier2/tier3 storage.
• P2V Migrations: Virtualizing many different applications/servers from Bare Metal to VM’s, saving up to 80% physical space in the datacenters resulting in a significant cost savings.

Principal Systems and Storage Engineer

Confidential

Responsibilities:

• (Contract which was extended to the maximum time allowed by Confidential ).
• Working in the implementation and design group, building and implementing infrastructure, managing Networks, (Cisco Nexus / ASR’s, F5’s) Storage - NetAPP, EMC and 3PAR, Dell blade servers, Dell OpenManage server administration.
• VMware work: upgrade VMware infrastructure to 5.1 from 4.1, vCenter at 5.5, creating host profiles, customization profiles, and setting up various PowerCLI scripts to automate provisioning and creation of over 500 VM’s.
• RedHat: Expertise in RHEL clustering, created clustering both in physical R620 servers (10 clusters of 5 nodes, using both cluster.conf files and RICCI/LUCI) various application work.
• DNS: InfoBlox architecture, building and administering
• Configuration management systems: Puppet (Creating the puppet master and agenst, creating manifests and more) and CFEngine
• DHCP/IPAM: InfoBlox administration and provisioning.
• Linux Performance Tuning: Modifying /etc/sysctl.conf as well as various NIC parameters for VMware performance, hugepages, valgring, analyzing thread dumps and more.
• Java: Analyzing thread dumps, jconsole, visualVM, finding memory leaks in applications. Tomcat or JBoss, Working with JAR’s, WAR’s, and EAR’s for various applications.
• Automation: working and setting up CFEngine, testing with Puppet
• Hadoop: Creating a Hadoop cluster, with 2 HeadNodes and 10 DataNodes.
• Server Harware: Dell m1000e Chassis’s (Deployed over 30, with hundreds of m620 blades, Fiber Channel & 10GbE modules) Cisco UCS, also completed Cisco Data Center Unified Computing Implementation course (CI-DCUCI).
• Various Storage work:
• Provisioning NetApp FAS3200, FAS6200 NAS/SAN on CLI & OnCommand System Manager for Unix/Linux/VMware,Windows.
• Others: Configuring authentication against Active Directory, and setting up Centrify on multiple Linux systems, clustering VM’s with specific service usersFirewalls: set up Cisco ASA’s, rulesets, and debugging various application paths from the cloud (and CDN’s) via the firewalls/F5’s to the actual chassis/blade/VM/application port.

Systems Engineer

Confidential

Responsibilities:

• Worked in Service Delivery. Was part of a team to decommission applications and hardware for migration to other datacenters? Migrated various applications such as Confluence with a PostGRES database to a central Enterprise wiki, over 2 major version changes. Cloned and supported a large confluence wiki in part of an effort to create a High Availability setup. Migrated various MediaWiki wiki’s using UWC into the Enterprise wiki. A lot of work with MySQL and Postgres to troubleshoot and correct migration issues.
• Migrating data centers with consumer applications, high availability websites, databases, security policies and Disaster recovery methodologies, DNS infrastructure with Men & Mice and BIND for application cutover across different datacenters, Windows Administration R2, Active Directory, VMware 4.1, using various applications to P2V or V2V across datacenters, Migrated a few mission critical applications from a datacenter on physical hosts to virtualized server farms, both Linux and Window, setting up monitoring across various platforms, CA Spectrum, xmatters, SiteScope and others.
• Was a contact for various troubleshooting, connecting with the networking group, Storage group, Security group and VMware group on a few visible issues that came up.

Principal Systems Engineer

Confidential

Responsibilities:

• Working in Systems Architecture and Integration department, helping engineer enterprise level systems, analyzing high level systems architecture of Linux systems, (RedHat 5.4 - 6.0) for Confidential . Responsible for rollout of video streaming service consisting
• DNS architecture, network architecture with latest Cisco switches, firewalls (ASA ) Brocade Load balancers, Oracle and MySQL Databases and more. Also testing, configuring and performance optimizing Apache Tomcat 5 and 6, JBoss servers, with databases MySQL, Oracle and others, using Apache JMeter, AB and other tools. Working with highly available production systems, some bare metal and some VM s, both on XenCenter and VMware platforms, Benchmarking systems and stress testing them, as well as experimenting various monitoring such as Zenoss, Nagios and SiteScope. Notable milestones; Set up dozens of servers, from start to finish, Linux and Windows, configured them to high availability standards, wrote paper on setting up Redhat clusters in various network communication modes, and set up an MRTG and later a Cacti server for Network group.

Sr. Systems/Network Architect

BroadNet Solutions

Responsibilities:

• Responsible for all technology designs and implementations, architecture and projectsRollout of wired and wireless Networks across the US, for both Data and VOIP, Disaster recovery planning and rollout, virtualization using VMware ESX/ESXi, vCenter, Enterprise level ESX Infrastructure, Site Recovery Manager, HA, FT, VMotion. Windows architectures and Linux (Redhat 4,5, and 6, CentOS and Ubuntu) disaster planning, as well as clustering using Windows cluster management, as well as Starwind on Windows 2008 and RedHat Linux, using Corosync, building highly availability systems, as well as standby clustering in some cases.
• Day to day activities included troubleshooting various systems, new builds, learning new hardware, coordinating with different vendors for various installations, capacity planning, network monitoring, planning and installing high availability solutions, security and patch management.

Principal Systems/Network Engineer

Confidential

Responsibilities:

• Loan Modification services to consumers, largest in the US, Directed IT services over 1000 employees in over 12 call centers, over 5000 incoming calls a day. Cisco network, Windows 2003/2008 Systems. Linux Redhat, Sun Solaris 8 and 9, set up a disaster recovery plan, with Barracuda backing up continuous backup offsite, MySQL database replication and backups, and SalesForce CRM. Negotiated telecom contracts, Co-Location, PCI Compliance. Used Puppet to administer hundreds of systems, set up Nagios monitoring system, managed and implemented a move to virtualization on HP Hardware/Vmware.
• Day to day activities included capacity planning, network monitoring, planning and installing high availability solutions, security and patch management. Virtualization considerations and clustering architecture as the websites and user base grew at a very fast rate.

Sr. System Engineer/Web Applications

Confidential

Responsibilities:

• Managed 2 locations, RedHat Linux, Sun Solaris Unix and Windows systems as well as networking, Cisco and Sonicwall routers and firewalls, VPN s, multi - homed BGP routing, performed role of Sr. Security Officer, and Directed Web & Internet Technologies, Database replication to secondary location, Exchange CCR Replication, Backups to offsite location, leads system integration with CRM, PGP Encryption solutions for the company. Activities included keeping all Sun, Linux and windows systems up to date with the latest patches and security alerts, monitoring capacity and availability, and evaluating and testing new technology.

Information Technology, Production Engineering

Confidential

Responsibilities:

• Responsible for all technology decisions, Websites built on Sun Solaris SPARC machines for the backend, and Linux Redhat in a clustered design as the front end, MySQL and Oracle databases, and Apache as well as IIS webservers. (LAMP Architecture) Project planning and implementation for $3M IT services firm. Scripting in Bourne Shell and Perl for various system administration tasks. Directed and helped develop company's websites, Developed CRM System, managed IT services with over 30 employees.

Confidential, San Francisco

Sr. Systems/Network Engineer

Responsibilities:

• Built the 3rd Largest Internet Services Provider from the ground up in Israel, was involved personally in all aspects of the systems and networks. Was chosen by Cisco to run a beta test for its ISP offering called AccessPath, as well as NetApp to test their newest filers.