SUMMARY:

• Experience in IT specialized in several Operating System, Server Administration (Red Hat Linux, UNIX, and Windows Server - up to 2012), and Networking (Ethernet 802.11, router, switch, firewalls, gateways, bridges, modems, IPv4, IPv6, TCP/IP, DHCP, DNS, WINS, NFS, FTP, Telnet, load balancers, SMTP, HTML, XML, POP3, IMAP, NAT, VPN, VLAN, LAN/ WAN, VoIP, Active Directory, MS Outlook, Outlook Express, and network e-mail management.
• Experience in Linux/Unix and Powershell scripting.
• Experience in MS Exchange Server - up to 2010, MS Terminal Server - up to 2008, ISA Server - up to 2006, and IIS - up to 7.
• Ability to remote administration, such as RAdmin, PC Anywhere, MS Terminal, and others.
• Experience in different Anti-Virus, Anti-Spam, Anti-Spyware, Internet Security, and Corporative (Norton, Panda, Kaspersky, Symantec, McAfee, etc.).
• Strong knowledge of LAN/ WAN/ Wireless administration, configuration, support, troubleshoots and resolves issues in Linux/ UNIX/ Novell/ Windows.
• Experience using different virtualization technology such as VMware, Hyper-V, VERITAS, VirtualBox on design and develop production and laboratories environments.
• Experience in MS SQL Server - up to 2008 and MySQL.
• Excellent communication skills in Spanish and English (oral and written) interpersonal skills, organization, self-motivated, quick learner and supportive team player.

PROFESSIONAL EXPERIENCE:

Confidential

Networking and Systems Administrator

Responsibilities:

• Responsible for day to day installation, configuration, system administration, system builds, server builds, adding/updating users, password aging, zones, patches, migration, security, backup, disaster recovery, performance monitoring and fine-tuning on UNIX SCO Open Server/ Red Hat Linux/ Windows systems, fixing bugs and writing stored procedures and shell script.
• Troubleshooting and analysis of hardware and software failures for various UNIX/ Linux/ Windows servers (core dump and log file analysis).
• Maintaining appropriate file and system security (Group/User), monitoring and controlling system access, changing permission, ownership of files and directories, maintaining passwords, assigning special privileges to selected users and controlling file access, monitoring status of process in order to increase the system efficiency, scheduling system related and cron jobs.
• Assisted customers with setting proper Priority/Severity of problems, work problems to resolution, recorded/documented actions in databases as well as utilized tools and resources.
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Administration and configuration of Print Servers/Clients in the Network.
• Worked closely like database administrator to ensure optimal performance of databases.
• Supported intheelaborationoftoolsformanagement decisions and process optimization.
• Worked on Linux/ Windows software and hardware installation, configuration, and troubleshooting in a mission-critical production environment (Internet, TCP/IP, firewalls, proxy, SMTP/POP/IMAP, LAN, WAN, and wireless).
• Designing, implementing and configuring Disaster Recovery, Business Continuity and High Availability Solutions for various versions of Microsoft Exchange over 20 servers.
• 500 Mailboxes - Designed the transition schema and creating of a new messaging infrastructure from Exchange 2007 to an Exchange 2010 environment as well as updating their Active Directory environment to a Windows 2008 Active Directory environment.
• Designing and implementing the upgrading of current Active Directory environments in Windows 2008 to a Windows 2012 Active Directory native mode environment to be used by Exchange 2010 SP1.
• Installed and configured Norton/ Kaspersky/ McAfee Antivirus for Exchange.

Confidential

Networking and Systems Administrator

Responsibilities:

• Responsible for day to day installation, configuration, system administration, system builds, server builds, adding/updating users, password aging, zones, patches, migration, security, backup, disaster recovery, performance monitoring and fine-tuning on UNIX SCO Open Server/ Red Hat Linux/ Windows systems, fixing bugs and writing stored procedures and shell script.
• Written Shell scripts to collect the system performance information and account information on a daily basis.
• Troubleshooting and analysis of hardware and software failures for various UNIX/ Linux/ Windows servers (core dump and log file analysis).
• Maintaining appropriate file and system security (Group/User), monitoring and controlling system access, changing permission, ownership of files and directories, maintaining passwords, assigning special privileges to selected users and controlling file access, monitoring status of process in order to increase the system efficiency, scheduling system related and cron jobs.
• Assisted customers with setting proper Priority/Severity of problems, work problems to resolution, recorded/documented actions in databases as well as utilized tools and resources.
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Administration and configuration of Print Servers/Clients in the Network.
• Worked closely like database administrator to ensure optimal performance of databases.
• Coded and supported several automated solutions for environment support providing real time application configuration information and monitoring 24x7.
• Supported intheelaborationoftoolsformanagement decisions and process optimization.
• Worked on UNIX/ Linux/ Windows software and hardware installation, configuration, and troubleshooting in a mission-critical production environment (Internet, TPC/IP, firewalls, proxy, UUCP, SMTP/POP/IMAP, WAN, LAN, wireless, frame relay, SQL data base, workstations, POS, PLCs and Call Center).
• Designing, implementing and configuring Disaster Recovery, Business Continuity and High Availability Solutions for various versions of Microsoft Exchange over 5 servers.
• 250 Mailboxes - Designed the transition schema and creating of a new messaging infrastructure from Exchange 2003 to an Exchange 2007 environment as well as updating their Active Directory environment to a Windows 2008 Active Directory environment.
• Designing and implementing the upgrading of current Active Directory environments in Windows 2003 to a Windows 2008 Active Directory native mode environment to be used by Exchange 2007.
• Installed and configured Norton/ Kaspersky/ Panda Antivirus for Exchange.

Confidential

Systems Administrator

Responsibilities:

• Responsible for day to day installation, configuration, system administration, system builds, server builds, adding/updating users, password aging, zones, patches, migration, security, backup, disaster recovery, performance monitoring and fine-tuning on UNIX SCO Open Server/ Red Hat Linux/ Windows systems, fixing bugs and writing stored procedures and shell script.
• Written Shell scripts to collect the system performance information and account information on a daily basis.
• Troubleshooting and analysis of hardware and software failures for various UNIX/ Linux/ Windows servers (core dump and log file analysis).
• Maintaining appropriate file and system security (Group/User), monitoring and controlling system access, changing permission, ownership of files and directories, maintaining passwords, assigning special privileges to selected users and controlling file access, monitoring status of process in order to increase the system efficiency, scheduling system related and cron jobs.
• Assisted customers with setting proper Priority/Severity of problems, work problems to resolution, recorded/documented actions in databases as well as utilized tools and resources.
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Administration and configuration of Print Servers/Clients in the Network.
• Worked closely like database administrator to ensure optimal performance of databases.
• Coded and supported several automated solutions for environment support providing real time application configuration information and monitoring 24x7.
• Accountable for implementation of Statistical Systems to support management decisions and process optimization.
• Hands-on Automation support in Feasibility Projects.
• Worked on UNIX/ Windows software and hardware installation, configuration, and troubleshooting in a mission-critical production environment (Internet, TPC/IP, firewalls, proxy, UUCP, SMTP/POP/IMAP, data base, workstations, WAN, and LAN).
• Designing, implementing and configuring Disaster Recovery, Business Continuity and High Availability Solutions for various versions of Microsoft Exchange over 30 servers.
• 300 Mailboxes - Designing, planning, administration and implementing high-availability servers dedicated to e-mail and instant messaging. Monitoring and reporting on server of resource, and designing and implementing disaster recovery and security solutions over UNIX environment.
• Installed and configured Norton/ McAfee/ Panda Antivirus for Exchange.