Alfonso Gallegos
219-***-**** acgzqv@r.postjobfree.com
Summary
A Senior Linux/Unix Engineer with strong technical skills developed through a diverse background in
several technology areas. A recognized ability to work with both business and technical teams to manage
projects and achieve end goals. A solid background in administering, building and engineering solutions
for Linux and UNIX systems in both physical and virtual environments. A fundamental understanding of
network protocols, routing, switching and firewalls including years of experience with system and
application support, system architecture and design, monitoring, troubleshooting and security.
• •
Primary Linux/Unix Systems Engineer Virtualization VMware/Solaris
• •
Network Engineer Project Management
Experience
Mesirow Financial Inc., Chicago, IL 2007 - present
Senior Systems Administrator/System Engineer
• Primary administrator for all UNIX type systems including Linux (Redhat, Ubuntu), Solaris and
AIX. Responsible for application/system upgrades, codes changes, bug fixes and security
patches, server builds for virtual and physical
• Level 1 installation, configuration and troubleshooting of Microsoft SQL, Sybase and MSQL
databases.
• Experience with scripting using BASH, Kornshell, familiar with Powershell
• Administrator for Windows 2000, 2003, 2008 servers by providing application support,
troubleshooting issues, upgrades for software and hardware.
• VMware: Create and manage virtual machines, server builds, deploy appliances, utilize
snapshots and Vmotion, performance monitoring and capacity monitoring and planning.
• Build, configure and deploy VMs and templates. Completed Physical-to-Virtual (P2V), migration
of Windows NT, 2000, 2003, 2008 and Linux servers
Alfonso Gallegos
219-***-**** acgzqv@r.postjobfree.com
• Apache administration, Tomcat deployments and MYSQL installations and configuration
• Fundamental understanding of network protocols such as DNS, SSH, NTP, SFTP, FTP,SMTP,
SNMP, DHCP, FTP, HTTP, and HTTPS as they relate to server services and applications, security
and firewall filtering.
• Test, and maintain a disaster recovery plan for critical VMs and application data using Zerto
• Solaris Virtualization: Consolidated all physical Solaris servers into virtual zones.
• Hands on experience with iSCSI, NFS, and Fiber Channel protocols, Fiber Channel cabling,
switching, and zoning
• Developed disaster recovery procedures and testing for both physical and virtual servers for
UNIX and Windows servers.
• Designed and implemented a complete corporate backup solution deploying Commvault Backup
including SAN Fabric setup, configuration and implementation.
• Collaborated with the security team to strengthen security on all external/internal servers based
on penetration tests results, applying necessary fixes to operating systems and applications
• Fundamental knowledge of SMTP mail flow as it relates to DNS, MX and external host records for
mail routing, load balancing and redundancy.
• Monitored performance and troubleshoot issues using standard tools such as iostat, vmstat,
traceroute, netstat, ping, snoop, event viewer and wireshark.
• Solid knowledge of system monitoring using SNMP based applications such as ORION and
WhatsUpGold.
Alfonso Gallegos
219-***-**** acgzqv@r.postjobfree.com
Fimat Facilities Management, Chicago, IL 2004 - 2007
Network Engineer (Technical Manager)
• Experience with installing and configuring moderately complex network Cisco switches,
routers and performing IOS upgrades.
• Provisioned wide area network (WAN), including ordering services and equipment from
local and long haul service providers, tracking delivery milestones, escalating for improved
service dates and conducting test and turn up procedures and scheduling circuit upgrades
• Provided support for LAN/WAN including maintaining remote office connectivity and
provided remote office support
• Understanding of global, wide area network (WAN) technologies including MPLS, Frame
Relay, VPN as well as traffic protocols commonly used with these technologies.
• Monitored network usage and troubleshoot network issues based on bandwidth analysis
and monitoring tools
• Led the data center build out for both primary and remote data centers.
• Coordinated the provisioning of the electrical circuits, subfloor and cabinet installation,
patch panels and data cabling.
• Provided level 1 firewall administration and support on Checkpoint Firewalls
Fimat Facilities Management, Chicago,IL 2000 - 2004
System Engineer (Technical Manager)
• Platforms: Solar, Linux, Windows
• Key role in the design of supported hardware for custom applications
• Resolved support issues and maintained customer relations
• Maintained hardware and OS support for a mixed environment.
• Technical lead for migrations and new deployment
• Deployed a global wide company DNS
Alfonso Gallegos
219-***-**** acgzqv@r.postjobfree.com
• Provided first level Oracle DBA support
• Setup and maintained monitoring for all production systems
• Provided daily customer support and troubleshooting
OE Chicago Consultants, Chicago, IL 1996 – 2000
System Engineer
• Served as a Technical Manager to Ameritech Small Business Collections Center
• Designed and installed switched networks for small business services group.
• Technical Manager of the help desk support group providing service to 300 local and remote
users
• Provided Windows upgrades, hardware migrations and application integration
• Provided administrative support for a 400 + user Windows LAN
OSTECS Consulting 1995 – 1996
Technical Consultant
• System Administration and technical support for a large Unix network
• Implemented a Disaster Recovery solution for real time application servers
• Customized Unix system scripts and batch programs that automated daily tasks.
• Provided daily client and troubleshooting support
Alfonso Gallegos
219-***-**** acgzqv@r.postjobfree.com
Education
2014 - VMware 5.0 training
1994 – 1996 Purdue University
Computer Science.
Completed 3 years.
1990 Computer Learning Center
Certifications
Microsoft Certified Systems Engineer, Microsoft Certified Professional, IBM A+ Certified, HP, Compaq,
IBM Certified, ITIL 3.0 Certified