Network Engineer/Technical Support

ANGEL C. CASTRO IV

**** **** ******, *** *****, California 94806

Residence: 510-***-**** Email: *.**********@*********.*** Mobile: 510-***-****

HPC Technician | Network Technician | Technical Support Specialist

Twelve years of extensive hands-on experience in network engineering, Windows/Linux systems administration, desktop troubleshooting and repair. Designed, installed, configured and maintained complex router LAN and WAN networks. Four years supporting 24 / 7 / 365 network operations center. Excellent communication skills with the ability to interface at all levels. A team player who also can work well independently.

TECHNICAL EXPERTISE

Systems Windows (2000, 2003, 2008) Servers, MS Exchange (5.5, 2003), Windows (XP,Vista,7) UNIX, Linux, CentOS, HPUX, Solaris, IBM AS400, RAID Systems, Novell Netware

Hardware Cisco (7200, 3600, 2800) Series Routers, Cisco Catalyst (6500, 3700, 2900) Switches, Cisco PIX / ASA, Cisco AP 1200/350 Series, Symbol AP 4131, Juniper MX Series, HP (9000, 3000) Series, Hubs (Cisco, 3COM, HP), HP & Dell Servers, AVT/CVT, PC, MAC, Printers and other peripherals

Software Active Directory, Exchange, Lotus Notes, Cisco IOS, Junos, HP Data Protector, Avaya Definity, Cisco VPN 3000 Series, MS Office Suite (2000, 2003, 2007), Visio, Symantec Ghost, Norton anti-virus, Outlook

Tools Nagios, HP OpenView, IBM Tivoli, Ethereal, Fluke Network Analyzer, MRTG, NetSaint

Networking LAN/WAN, TCP/IP, IPX/SPX, DNS, DHCP, POP3, SMTP, SSH, NAT, EIGRP, OSPF, BGP, HSRP, Frame Relay, IPSec, TACACs, ACL, OC, Sonet, ATM, Ethernet

PROFESSIONAL ACHIEVEMENT

Lawrence Berkeley National Laboratory, Oakland Scientific Facility, California November 2009 – March 2010

High Performance Computing Technician

• Provided 1st tier technical support on network operations center on a 24 / 7 / 365 schedule that include large systems, servers, storage systems, workstations, networks, environment and monitoring tools.

• Initiated analysis of system failures and various circuits experiencing signaling or hardware problems and executed appropriate recovery procedures within the LBNL organization.

• Escalated trouble reports and liaised remote site personnel, network carrier, and second tier engineering support per control room SOP’s.

• Enforced NIM account management in password generation, disabling user accounts, resetting passwords and clearing failed login attempts for the scientific community.

• Documented accurate problem descriptions, informative status updates, and pertinent log entries in Remedy ticket management system, maintenance calendar and Exchange email.

Long’s Drug Stores, Walnut Creek, California December 2007 – May 2009

Network Support Technician

• Performed efficient and accurate support of corporate and 530 sites’ WAN/LAN/WLAN networks, servers, workstations and hardware peripherals minimizing downtime significantly.

• Proactively monitored and maintained HP-UX application servers, IBM Controllers, POS systems and all network components via IBM Tivoli, CiscoWorks, health checks and shell scripts.

• Diagnosed and troubleshooted network issues on Cisco 7200/2800 routers, Catalyst 6500/3700/2900 switches, CISCO 1200/350 access points and T3, T1, DSL circuits.

• Managed AVAYA voice system (added, removed, reset) voice users and performed system backup. Entered clear and concise notes / entries in Remedy ticketing system.

Oakland Unified School District, Oakland, California December 1998 - June 2007

Network Technician

• Provided technical support of all clients on network and computer issues triaged by Help Desk.

• Maintained and administered network servers that include Microsoft AD Servers, Novell, LINUX Redhat and Solaris on over 100 school sites.

• Initiated configuration and installation of Cisco 2800/2600 routers, Cisco Catalyst switches, data communications equipment, servers, PCs and Macs.

• Standardized and documented wiring schemes for LAN expansion within a site location.

• Implemented Network Administration and Network Security procedures.

• Collaborated with vendors and IT team members to provide technical solutions.

Tenet California Healthcare (Comms People, Inc), San Francisco, California April 1998 – June 1998

System Administrator

• Administered management of HP 9000 server including HBOC healthcare system application, user accounts, daily full backups, auditing and security.

• Upgraded HPUX Ignite-UX to current version and installed patches.

• Resolved connectivity issues on TCP/IP and IPX/SPX network, Novell 4.x DHCP server, Cisco routers, hubs and Xyplex terminal servers.

• Provided 24/7 on-call support on help desk calls on hardware and software issues.

Innovative Interfaces Inc, Emeryville, California January 1996 –January 1997

Technical Support Specialist

• Provided extensive telephone and e-support for Innovative's customers using Innovative software on large multi-user UNIX systems.

• Analyzed, troubleshooted, documented, and resolved application issues reported by customers using UNIX and proprietary utilities.

• Worked with customers with varying levels of technical expertise to effectively pursue and resolve issues in an expedient manner.

EDUCATION/CERTIFICATIONS

CompTIA Network+, Certified 2010

CompTIA Security+ Certified 2010

MCP (Microsoft Certified Professional) Training • TechProsGroup, Irvine, California 2007

MCSA (Microsoft Certified System Associate) Training •, TechProsGroup, Irvine, California 2007

Cisco Certified Network Associate Certification • Alameda College, Alameda, California 2004

Information Systems Analysis, Design and Management • University of California, Berkeley Extension, Berkeley, California – Earned credits 1999

Novell 3.x / Novell 4.x • Contra Costa College, California 1997

Bachelor of Science, Electrical Engineering, University of Santo Tomas, Philippines, April 1983

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