Raul Zighelboim

ad37xs@r.postjobfree.com

925-***-****

Senior Linux Engineer & Administrator

Fifteen + years experience in IP network and IT management. Expertise lies in leading teams and developing projects in fast paced, challenging environments such as start up and rapidly growing companies. Strengths include being results oriented, impacting company's productivity, being proactive, working well with others as well as independently. Qualification Highlights

Information Technology

Project Management

Operations Management

Technical Analysis

Network Engineering

Network Security

Disaster Recovery

Migrations / Upgrades

IT Strategy Development

PCI Compliance

HIPA Compliance

I am fluent in English, Spanish and French.

Technical Expertise

Certifications CCNP, CCNA, MCSA, MCP

Operating Systems AIX, Linux, Unix, Redhat, CentOS, Cisco IOS Databases MySQL, MS SQL, PostgreSQL

Email Servers Sendmail, Procmail

Firewalls IPTables, BSD Packet filters, Cisco PIX, Checkpoint Routers Cisco 7500, 7200, 3800, 2600

Network Services RIP, OSPF, BGP, SNMP, DHCP, DNS

Switches Cisco 6500, 2900, HP, Dell, VLAN, STP, RSTP, IGMP, Snooping Monitoring SNMP, Nagios,, mrtg, WireShark, TCPDump, Snooping Backup Veritas, Netbackup, NTBackup

Networking L2, L3, L4, IPv4, IPv6 TCP/IP, Multicast Professional Experience

Linux Systems Engineer I Sungard AS, Austin, TX Jul 2015 – Aug 2016

• Work on problem tickets involving monitoring issues.

• Create and disable user accounts.

• Configure monitoring on new devices.

Student Austin Community College, Austin TX Sep 2014 – Dec 2014

• Took technology classes to update my knowledge and review of new technologies. Linux Systems Administrator Epicor Software, Austin, TX Apr 2013 – Sep 2013

• Managed day to day operations of servers and systems, including creating VMs and define storage needed for the application and server on the NAS.

• Managed the relocation of all UNIX and Linux servers to a new datacenter.

• Managed Routers and switches

• Managed and troubleshoot Java and Tomcat

• Managed and troubleshoot storage systems, created test to evaluate and monitor storage performance.

• Documented system changes and tests performed on systems. Linux Systems Administrator Rev. Woldwide, Austin, TX Dec 2011 – Mar 2012

• Manage day to day operations of linux servers and systems, testing and assigning storage to applications and servers.

• Monitor and configure Linux and Unix (SUN) servers. Tested stability of servers and NAS.

• Manage tomcat and apache servers

• Created, evaluated and executed test cases to support the enterprise level storage system Data Associated/Beta Tester Dell Inc., Austin, TX Jul 2011 – Dec 2011

• Tested product during development to provide the highest quality to our clients and recommend future improvements

• Assisted Enterprise Solution Managers and other Operation Team Members with day-to- day operations.

• Provided training to new employees on product functionality

• Worked in lab environment to test and document and executed cases, identify defects and recommend product improvements.

System Manager Whiteglove House Call Health, Austin TX May 2010 – Jan 2011

• Tested Maintain network infrastructure.

• Install, maintain and troubleshoot switches and routers in order to keep up with the growth of the company.

• Maintain servers and workstation

• I was responsible for the maintenance of company Unix and Windows server, both public and private.

• Manage and monitor Exchange server

• Negotiate and supervise relations with IT vendors.

• Manage Apache servers (http://www.whiteglove.com)

• Manage and monitor Linux Redhat servers

• Responsible for purchase of computer equipment as well as WAN circuits.

• Maintain the CiscoASA Firewall

System Administrator Minggl, Austin, TX Jul 2008 – Dec 2009

• Designed Minggl network infrastructure. Presented and justified plan to potential investors.

• Patched Redhat kernel as well as Tomcat applications and troubleshoot errors in the patching.

• Build a fully redundant and self healing gateway based on Linux and LVS opensource software.

• Manage and monitor network security and intrusion detection.

• With the application of IPTables, NAT and Snort (IDS) I build a highly secure and easily monitored network.

• Maintain and monitor network performance.

• Net-SNMP, OpenNMS and Nagios were deployed to monitor system (bandwidth, cpu,

….) utilization and to send warnings when problems were detected.

• Improve stability and increase availability of Minggl servers and services.

• With the introduction of LVS and server redundancy an uptime of over 99.99% was achieved.

• Maintain and monitor Apache and Tomcat servers (http://www.minggl.com)

• Setup monitoring, ha and lvs in order to be able to proactively grow our services with minimum downtime and service quality impact.

• Perform daily maintenance of systems, develop new and more efficient ways to deliver services as well as found ways to integrate system with modern development tools (svn/ wiki/trac )

• Setup and manage MySQL database servers, including redundancy (slave servers), backup and recovery of data.

• Test and experiment with VMWARE as a solution for better load balancing and redundancy via virtual servers and load distribution.

• Build and maintain the IPFilter firewall.

Systems Administrator AdRevolution, Austin, TX Sep 2007 - Jul 2008

• Improved AdRevolution network infrastructure.

• Build a fully redundant and auto hilling gateway based on Linux and LVS opensource software.

• Manage and monitor network security and intrusion detection.

• Patched kernel in order to get the LVS modules running. Troubleshoot problems related to the patch.

• With the introduction of Snort (IDS) prevented and identified hack attempts at its source.

• Maintain and monitor network performance.

• Net-SNMP, OpenNMS and Nagios were deployed to monitor system utilization and to send warnings when problems were detected.

• Maintain and monitor Apache servers (http://www.adrevolution.com)

• Migrated web services from local servers to Akamai.

• Maintain and monitor network performance.

• Migrated DNS services from local servers to GoDaddy.

• Improved performance of existing servers.

• Build redundant server site to plan for recovery from catastrophic failure.

• Manage and maintain the Dell Powervault Storage Area Network (NAS).

• Setup monitoring and metering services for local servers.

• Managed MySQL servers. Installed new servers and distributed load (queries) among them (10 slaves and 1 master) in order to improve response.

• Maintain the firewall

Network Administrator PhotoTLC, Austin, TX Jul 2006 – Aug 2007

• Forecast company technical requirements.

• Maintain and monitor network performance.

• Manage and monitor network security and intrusion detection.

• Responsible for management evaluation and stability of the network and Linux servers.

• Leading the consolidation of PhotoTLC California and Austin systems as PhotoTLC long term goal is to phase out the IT team in California.

• Document and inventory network layout and Linux servers configuration.

• Document production flow.

• Identify server bottlenecks and taking corrective measures.

• Upgrading older Redhat 32bit servers with 64bit servers in order to break the 3Gbytes memory barrier.

• Optimize MySQL servers.

• Setup Mysql master-slave configuration defined a backup schedule,

• Improve the existent RedHat LVM web server system to provide better performance and stability

• Setup an SNMP monitoring and warning system based on NAGIOS and OPENNMS to identify and warn about developing problems in its early stage.

• Manage and configure SAN (1.5 TBytes) – This was done with Supermicro servers running Linux and iSCSI drivers...

Director of Technology Solutient, New Orleans, LA Jun 2002 – Sep 2005

• Responsible for technical ‘State of the Company’ quarterly reports..

• Budgeted Systems, hardware and software purchases.

• Administered IT department for Solutient and its 25 IT customers.

• Responsible for long and short term planning of company’s IT goals.

• Researched and developed new technologies for Solutient and its customers.

• Designed IT security policies and procedures for Solutient and its customers.

• Developed and maintained IT disaster recovery plans for Solutient and the City of Kenner base on Linux servers.

• Scanned network in order to detect and correct vulnerabilities.

• Established firewall security rules and maintained firewalls.

• Responsible for management, training and daily supervision of technical support staff for Solutient and City of Kenner.

• Controlled and distributed Solutient IT Hardware annual budget.

• Optimized IT investments by continuously assessing resources and technology.

• Developed ongoing plans for implementation of technology to ensure efficiency and productivity.

• Based on my abilities, expertise and professionalism, recruited many customers for Solutient, Inc.

• Migrated NT network to Windows 2000/XP platform.

• Installed, configure and manage Exchange 2003.

• Built and maintained a monitoring system to track servers’ health and performance.

• Designed and implemented secured VPN for remote access by off-site employees. Network Engineer Communique/Verio/NTT Sep 1994 – Apr 2002

• Introduced new product development and schedule to upper management.

• Implemented and managed network security policies with packet filters, firewalls, encryption, and authentication as appropriate.

• Crucial member of the Disaster Recovery team.

• Presented monthly reports on network status. Introduced recommendations and documentation in order to better manage growth.

• Designed, generated project, planned and managed the implementation of Verio Gulfsouth redundant wide area network.

• Trained and managed tech support teams.

• Responsible for company’s long and short term IT goals and objectives.

• Continuous evaluation of goals, objectives, technologies and products to ensure that they meet company’s needs.

• Developed IT policies and procedures to ensure efficiency, security and productivity.

• Maintained 24 X 7 environment.

• Configured and maintained IP routers and Linux servers.

• Negotiated and approved WAN carrier contracts.

• Identified and selected equipment for company and its clients.

• Maintained network in 7 remote locations.

• Approved WAN carrier bill payments.

• Managed Linux and NT servers for customer services and internal applications.

• Managed Exchange Server 5.5. Upgrade to Server 2000.

• Designed and maintained Verio data center.

• Designed and built IT infrastructure for Orleans, Jefferson and St. Tammany School Districts.

• Designed, developed, and implemented automatic trouble notification service based on OpenView SNMP.

• Provided second level support to Verio's ‘Customer Support Specialists'.

• Provided technical assistance to sales team for large customers.

• Documented network layout in order to facilitate problem tracking and resolution.

• Maintain firewall rules.

Consultant Broadband IP Inc. Oct 2000 – Mar 2002

• Technical liaison to Investors for status report and to present status of budget.

• Designed built and configured the infrastructure and technology for a wireless last mile solution for Internet and WAN access, serving over 300 small to medium corporations with up to 3,000 computers as of March 2002.

• Responsible for planning of company’s long and short term IT goals and objectives.

• Managed a $1,500,000 budget to deliver company services.

• Developed, implemented and managed IT security policies and procedures.

• Applied existing tools to monitor network integrity and applied pertinent patches.

• Maintained network in 5 remote locations.

• Reviewed continuously procedures, staffing and products to ensure optimization of IT budget.

• Evaluated, selected and purchased equipment for company.

• Responsible for the research, evaluation and purchase of the necessary equipment to deliver the company services.

• Built technical department to train new personnel and test cutting edge technology.

• Trained and managed Customer Service Specialists to maintain the system while providing networking support to customers.

• Built solid Internet computers for E-mail, WEB and DNS services capable of handling more than 5,000 mailboxes and 1,000 domains using Linux and open source software.

• Engineered data backup and restore procedures on Linux servers. Education

Tulane University, New Orleans, Louisiana.

• Master of Sciences in Physics. 1986-1989

• Worked towards a Ph.D. in Physics.

Universidad Católica del Perú, Lima, Perú.

• Bachelor of Sciences in Physics. 1980-1986

• Bachelor of Sciences in Mathematics.

Publications

• Zighelboim, R.S., Buccino, S.G. and Durham, F.E. Negative-Parity Structures and Lifetime Measurement of 71As. Physical Review C.: Nuclear Physics,1994 v 50 n 2, p 716. References

Available upon Request

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