SIGFRIDO DIAZ ALVAREZ

Secret Clearance Active

acuwgt@r.postjobfree.com

RR 7 Box 7387• San Juan, PR 00926-9134

Ph. 787-***-**** – 787-***-****

Experienced System Administrator

Security+, Network+ and MCP certified Information Technology professional with proven experience in areas such as: Systems, Network and Security Administration. Fully Bilingual professional with a record of supporting successful projects and solutions incorporating a wide range of technologies. Skilled at system diagnosis and issue resolution; as well as network assessment, design, implementation, and maintenance. Vast experience with CISCO Routers and switches, systems and servers integrations. Multi-tasked problem solver who persistently follows up until issues are resolved. Secret clearance active.

Areas of expertise include but are not limited to:

Systems: Sun Solaris,AIX,Linux,OS2,IBM AS400, Novell, Windows Servers (NT,2000,2003,2008,2012)

Network: Cisco, Nortel, Enterasys, HP, Avaya, VOIP, Video Conference Systems, Security Systems

Tools: VmWare, SQL Server, Tivoli Software Distribution, Altiris Software Distribution, IIS, Active Directory

Software: MS Office, MS Visio, MS Project, Lotus Notes, Great Plains, ENPS, Appac, Polycom, Aastra

EDUCATION

BBA, Accounting and Management – UNIVERSITY OF PUERTO RICO

CERTIFICATIONS & TECHNICAL TRAINING

CompTIA Network + CE, (2015)

CompTIA Security + CE, (2014)

Managing Linux Systems, (2006)

Microsoft Certified Professional - MCP, (2003)

Interconnecting Cisco Network Devices, (2001)

3Com NetBuilder Series Configuration & Bridging, (1998)

WORK HISTORY

System Administrator – Evertec Inc.

San Juan, PR March 2015 to Present

Worked on a consulting Firm contract project involving Information Systems Security and Cisco.

(Windows Servers 2003,2008 and 2012, Cisco Switches, Vulnerabilities, Parches, VmWare 5.5 )

System Administrator – MMM.

San Juan, PR Oct 2015 to Jan 2016

Worked on a consulting Firm contract project involving Information Systems Security.

(Windows Servers 2008 and 2012, Monitoring different Systems, Vulnerabilities, Parches)

System Administrator – D.O.D.

Key West, FL Oct 2014 to Feb 2015

Worked on a confidential federal agency contract project involving Information Systems Security and Cisco.

(Windows Servers 2008 and 2012, Cisco Switches, VPN and Laptops Win7 Security)

System Administrator (System Integrator) – TECSECURE INC (DCR)

San Juan, PR Jun 2009 to Sept 2014

Responsible for Cisco routers and switches, repaired 2950,3550,3560 and 3750 series, currently prescribes to 802.3 Ethernet standards for local area network, Used Routing Protocols: OSPF, RIP, and IGRP.

Managed Cisco routers and switch IP configuring policies and security logs.

Managed the Polycom Video Conference, VoIP Communications, Windows Servers, Routers, Switch and Security Systems including cameras.

Developed and oversaw the design and implementation of an enterprise-wide VoIP based communication network across (14) locations.

Responsible for unifying all scattered computers to a LAN system and repairing T1 and T3 lines.

Created a facility for the PR Correctional Department with video conference capabilities and elastix VoIP, in order for court cases to be done in the facility via remote.

Migrated network from 3com technology to Nortel. Virtualized servers using VMware, and installed fiber optic lines.

Implemented and maintained Windows Server 2003, 2008,2012 and related computing environments as Active directory and network protocols as TCP/IP, DNS, and DHCP.

Configured, monitored, and maintained email applications as Exchange Server.

Implemented advanced hardware and software upgrades, which proved to be markedly cost-effective enabling an increased budget and staff.

Troubleshoot fast and effectively problems and offered effective low-cost solutions to meet client requirements with minimal operating budget. Environment: Windows 2000, 2003, 2008 and 2012 Server, VPN, VoIP, LAN, Cisco, VMware 5, fiber optics, T1, T3, DHCP, Active Directory, Exchange Server, TCP/IP.

Director of Information Systems – PUERTO RICO PUBLIC BROADCASTING CORPORATION (WIPR) San Juan, PR Feb 2007 to May 2009

As IT director for a large public broadcasting station I oversee the Digital TV, VoIP Communications and Web Hosting departments, supervising a staff of 4 employees, including hiring and performance reviews of current employees.

Accomplishments:

Extensively developed and oversaw the design and implementation of an enterprise-wide VoIP-based communication network across 3 locations.

Implemented advanced software and hardware upgrades which proved to be markedly cost-effective to departments, enabling an increased budget and staff.

Advisor to the Marketing department on design of company’s new web site.

Independent Consultant, Network Specialist – VERIZON (Puerto Rico Telephone)

Guaynabo, PR Sept 2004 to Jan 2006

Maintained WAN networks with over 2500 users utilizing Tivoli distribution utilities.

Implemented TCP/IP core networking services using Windows NT, DHCP, WINS, and DNS.

Streamlined successful integration of networks for new marketing division with over 400 users.

Independent Consultant, System Analysis and Validation – SCHERING-PLOUGH

Toa Baja, PR Ago 2003 to Sept 2004

Designed and installed new network architecture to comply with ISO-9000 standards.

Managed Cisco routers IP configuring policies & security logs. Maintained Exchange 5.5 server.

Oversaw budgeting and procurement of network equipment for over 1000 users.

Senior Consultant – KEANE

Guaynabo, PR Sept 1997 to Ago 2003

Managed development and implementation of networks to enhance business processes for top tier clients. Provided “hands-on” training classes for employees.

Recognized for quickly troubleshooting problems and offering effective low-cost solutions to meet client requirements of minimal operating budget.

Fluent in both English and Spanish • Willing to relocate

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