Summary of Qualification:

• Knowledge of the Technology Industry and an understanding of how its products address key business needs
• Comprehensive test and troubleshooting experience in computers with working knowledge of Operating
• Systems including AIX/UNIX/RED-HAT/LINUX, Microsoft Windows Operating Systems server 2008/ 2003 , and TCP/IP Networking
• Excellent team-work and leadership abilities,
• Excellent written and verbal communication

Experience:

Confidential

Technical Operation Linux System Administrator/Support

• Provide support to company's servers Stand-alone LINUX/Centos 5.x servers, VMWare Vcenter Servers and Amazon EC2 Cloud Web Services used for running SAAS model Java based software that provided marketing solutions to advertisers and publishers in order to reach their audience over the WEB including PulseConnect and Real Time Bidding applications. This support was based on 24/7/365 days support including one week per month rotation for night shift support with system-monitoring of network infrastructure/routing servers using Zenoss/Nagios based monitoring system, performing system configuration automation using Puppet/Salt.
• Also was responsible for the company enterprise network infrastructure which included Tier 2/3 support of server traffics/bandwidth, routing, switching, server connectivity, VPN OpenVpn Client for Unix/Linux systems , SAN/LUN storage additions/extensions, and user authentications issues related to LDAP permissions/authentication , Windows server 2003/2008 Active Directory based Users/Groups, Atlassian's Jira/Conflunce ticketing/email/user support, SVC/revision-control, Configuration and automation changes using Puppet master/client , handling alerts and system-related cases submitted by internal/external customers using the Salesforce /email ticketing system. Supported Amazon AWS EC2/Euca2ools Cloud based instances for the applications such as UN-subscribing used by email users/email-campaigners. provided automation, log analysis and error reporting scripts using Bash, Python, Perl to the internal/external customers. Performed operating system configurations/installs, system O/S security patches/updates and was responsible for the publish of the external application software for applying monthly Linux Patching for servers owned by the company's external customers.

Rackspace Hosting

Linux System Administrator-Customer

Confidential

• Provided fanatical support to worldwide customers with Linux servers LAMP based on Red-hat/Ubuntu/Debian/Free BSD operating systems. Supported LINUX System Administration/Infrastructure trouble shooting of Web Servers, FTP Servers, Secure vsftpd, ProFtpd MAIL Servers sendmail, exim, postfix, QMAIL , application servers PLESK, Ruby on Rails, Tomcat, e-commerce software Networking Firewalls. Also provisioned servers based on Solaris system and helped customer to manage/check the system services using the Service Management Facility SMF components.
• Responsible for providing technical assistance on DNS Server/Client Configurations Berkeley NAMED/Bind problems and on trouble shooting of network related switch/router connections.
• Cloud Based Private/Public/Hybrid Instances/Servers Support OpenStack framework loaded with Linux operating systems based on Red Hat Enterprise 5.x, 6.x , Centos, and Ubuntu , and Windows server 2003 OS images. Supported kernel patches/updates, software package installs/updates, kernel security patches, LVM/RAID disk configurations/additions, plesk updates, fixing networking issues trouble shooting of server related services including DNS BSD Bind , SSH/SFTP, FTP, Mail sendmail, postfix , Databases MYSQL, PostgreSQL, Duplications and Apache/Nginx/Lighttpd Tomcat servers and Kernel-related issues such as kernel panic/segmentation faults. As a part of Rackspace Fanatical Support I helped customers in mitigating DDOS attacks, SQL injection attacks, Iframe/URL Injection hacks and examining/securing user-accounts/passwords for QMAIL for possible compromised email-addresses by performing Mal-ware/root-kit detections by doing log analysis and by finding hidden files and directories and implementing preventive measures in order to avoid future hacking and email accounts' compromises iptables, hardening user accounts, password-checking, check/reduce SUID, Setgid files/directorates, security audit tool, TripWire, Nessus, Wireshark, Snort, etc

Technical Support/Customer-Service

Confidential

• Provided technical support to Word-Wide clients with shared web hosting, VPS, and dedicated web servers via live chats/phone calls, email and ticketing system.
• Solved problems related to Email services SMTP, POP3/IMAP, QMAIL, Postfix, Exim, SENDMAIL , FTP/SFTP, HTML//XHTML/PHP/JS scripts, CGI/PERL scripts, Web applications Joomla, Drupal, WordPress, Coppermine, b2revolution, etc , MRTG/ MUNIN/Cacti/Awstat monitoring/statistics applications and servers' router/networking problems. Setup was done for a test dell server PowerEdge loaded with Apache 2.2/MySQL 5.x with PHP/PERL/ASP support for the purpose of troubleshooting Internet Services and/or diagnosing of company's external customers' custom-designed code/scripts their web applications using variety of CMS products including Apache/Tomcat with Drupal and Joomla.
• Troubleshooted problems related to DNS/DHCP Domain Registrations ENOM, Domain.com , SSL, e-commerce MIVA software, os-commerce applications, email clients e.g. Outlook, Thunderbird, Apple Mail , SSH/SFTP/ FTP clients Cute-FTP, Smart-FTP, Fetch, Filezilla , and HTLM /XHTML web-services issues Front-Page/Dream-Weaver .
• Giovanni's Italian Restaurant Restaurant Manager/Owner
• Managed the operation of a full dining restaurant with 25-30 people. Administrator of budgets, staffing, scheduling, training, purchasing, inventory management, The restaurant was recognized as the best dining/Italian restaurant in the city of Round Rock, TX by its daily paper , i.e. Round Rock Leader for 3 consecutive years. Was selected as one of top 30 best places to work for by the RR Leader -1996.

IBM Graphics Systems Test Engineer

Confidential

• Developed diagnostic programs in 'C' programming language for the IBM 2D/3D graphic adapters used for IBM RS/6000/AIX workstations. Responsible for all phases of test activities including planning, building, integration, system-testing/stress-testing maintaining/supporting of the diagnostic -level code for the IBM display adapters.
• Ported 3D graphics diagnostic program based on the SGI MIPS UNIX platform to the BM AIX platform. Debugged/Rebuilt the ported code using AIX system-tools including AIX debugger dbx re-complied rebuilt all source codes under IBM AIX O/S with the required changes to source/library modules configuration-scripts and system-build make files.
• Set up Networked Computers for test code development of the graphic sub-systems BIOS, Device Driver Interface, 3D-Perofrmance testing using IBM Token-Ring Networking Topology/Technology i.e. configured systems networking using AIX tool - SMITTY . Connected lab environment computers to IBM Internal Diagnostic Support and Hardware Integration Testing Systems' intra-net for the purpose of code development/debugging/CVS and final product diagnostic code-release.
• Responsible for low-level hardware bring-up codes for Video Card's Bus-Interface Module IBM MCA based , RAMDACs, I/O subsystems, Video RAM Memory, and supporting chip-set during the Engineering Design Phase of the product development of 2D/3D video cards.
• Coordinated EVT/DVT/FVT functional test operations and supported the graphic cards' diagnostic code for an in-house departments including Manufacturing and Hardware Exerciser teams Quality Assurance, Hardware-Integration/Stress-Testing group .
• Exceptional record-time release of a 2D Video adapter's diagnostics ahead of the released schedule by more than 6-months which resulted in IBM cash award for the test team. Provided all technical Documents for the graphic diagnostic code to IBM internal and external customers.
• As a team-member of IBM's PC Group-Test Manufacturing modified supported product level Diagnostic code for IBM Expanded/Extended Memory adapters use by IBM PC products.
• Developed and implemented Dynamic Torque measuring hardware/software adapter level system provided test support for an in-house built based on Intel x-86 processor controlled test equipment for the IBM Printers and Sheet-Feed products. Provided support to the IBM Manufacturing Assembly Test Line in running the specialized test equipment and in troubleshooting test error codes. Coordinated all activities including logistical operations and trainings/manuals for transferring the test equipment to IBM Manufacturing plant at Lexington, KY. To enhance the test capabilities of printer/sheet-feed products combined a Cognex Vision System with that of IBM PS/2 controlled test system for accurate measurements of products' parameters including paper alignments and skewness thus lowering product defects to less than 0.01 of all shipped printers/sheet-feed products. Adept in C and IBM PC assembly languages and have developed scripting codes in AWK, Perl UNIX/AIX shells Bourn/Korn/bash for the purpose of test automation and error/log analysis, report generation and data-collection.

Computer Skills:

• Computer Skills including: Microsoft Office Applications Access, Word, Excel, PowerPoint , Adobe, Photoshop, Adobe Dreamweaver, Windows PowerShell, Microsoft Outlook Web Application OWA , Microsoft Windows-based Outlook, Microsoft Windows/MSSQL, Symantec Anti -Virus Corporate Edition for the windows-based networked computers.
• Micros system, PMS Property Management Systems , MARSHA Reservation System , and Point of Sale POS Equipment/Registers, Zeta Phone System, SaaS based Pagerduty Alerting System/Platform, Atlassian Collaboration Software Confluence/Jira , Akamai
• Programming Languages such as C/C running on IBM UNIX/AIX platforma , IBM Assembly language, PHP, Shell scripting languages such as Bash, Python, Perl Unix-Based and Java.
• Automation Configuration Software including puppet, Salt.

Interests:

Reading western novels , Music, Computers Hardware/Software , Technical Magazines and Technical books and sports soccer, swimming , Movies.

Assisted with Special Olympics- Austin, TX. Was involved in United Way cash drive activities at IBM.

Honors and Technical Societies

• Delta Sigma Pi. Three years listings in UT-Arlington's Electrical Engineering Dean's Honor List.
• Cash Award from IBM for fast exceptional product Release for IBM 2D graphic card diagnostic Code
• Graduated top 15 - University of Texas at Arlington's Electrical Engineering School.

Customer Positive Feedback

Magento Optimization:

• I just wanted say thanks to a guy called Russo who helped us out and then took time to make some
• comments to help us. I was meaning to but got busy. These points maybe very helpful to our team.
• Please if you whoever gets ticket pass on my gratitude. Thanks heaps.
• Costas S., Technical Linux Administrator
• Constant Apache Segmentation Fault:
• Thank you very much Russo. You've been very much helpful.
• Best regards, Gustavo L., Technical Lead.
• Plesk Proftp Connection issue/problem:
• Beautiful, Thanks You
• Julie A., Technical Lead/Director