Summary

Leo is a local Denver candidate available to onsite interview in Denver as needed. He can start a new position 1 week from offer. Leo has been working with F5 since 2008.

Experience Synopsis

Experienced with F5 Load balancing and traffic prioritization.

Been responsible for providing day to day support for the installation and maintenance to sustain Data Center operation of working with servers running on various operating systems: UNIX, Linux, Windows, and Netware running on F5 networks, Dell and HP Servers.

Used Microsoft Windows Server, Active Directory, Exchange, SAN (NetApp, Hitachi), Virtualization (VMware), Backup and Recovery (Commvault), Disaster Recovery and security products.

Experienced with VMWare and vSphere design, integration and deployment.

Configured, deployed and maintained VMware Images on Cisco UCS.

Operated and maintained VMware in a Cloud Computing Enterprise Environment VMware ESX/ESXi 4.X, and 5.X., VMware vCenter/VMotion, VMware View 4,5 .X., VMware Operations Manager and VMware vCloud.

Worked with UNIX/Linux, UCS, Cisco Vblock, PowerShell and Bash scripts.

MPLS network troubleshooting Deploy Cisco Catalyst 6500 Series, layer three switches and Nexus 5000/7000

Executed appropriate troubleshooting protocols to achieve 99.99% uptime goals for Cisco proprietary platform.

Professional Experience

ZTechnology, Denver, CO January 2017 - Present

Clients: Equinox, Neck One, Savvis, etc.

Provide professional services for Data Centers.

Identify, analyze, and resolve network and system problems and performance issues.

Configure switches, routers, firewalls, VPN appliances, access points and other voice and data hardware.

Maintain firewall rules and troubleshoot interoperability.

Use Microsoft Windows Server, Active Directory, Exchange, SAN (NetApp, Hitachi), Virtualization (VMware), Backup and Recovery (Commvault), Disaster Recovery and security products.

Linux and Cisco networking including LAN, WAN.

Manage, design, and automate cloud platforms (AWS and Azure).

Design and implement a secure network in compliance with all PCI regulations.

Train as-built documents, diagrams, and performance reports.

Upgrade to existing systems and enhancements to the IT infrastructure.

Configuring and troubleshooting ACLs, Network Address Translation (NAT) and Site-to-Site VPNs on any of Cisco, Net Screen, Checkpoint firewall platforms.

Configuring and troubleshooting LAN technologies, Load balancer, IP subnetting and TCP/IP model

Configuring and troubleshooting DNS/BIND, Leased Lines and/or Asset.

U.S. Geological Survey (USGS), Lakewood, CO June 2016 – December 2016

System Engineer

Provided system support for the enterprise Windows Servers.

Supported enterprise data center operations through maintaining hardware and hardware inventories/maintenance.

Logged and troubleshooted network appliances. Managed Storage Array Networks.

Performed contingency plan testing, monitoring and tracking of enterprise systems for problems/failures/capacity issues/etc. Manage and monitor system logs, provide script development for system automation and provisioning Use Remedy ticketing system to lead teams in providing multi-tiered support to manage enterprise backups, endpoint monitoring, and virtualization environments.

Supported technical documentation.

VMWare and vSphere design, integration and deployment.

SAN and other storage methodologies for use in a virtualized infrastructure.

Active Directory design, deployment, and maintenance.

Integrated cloud technologies such as virtual private servers (VPS), UCS and ESXi and vCenter 5-6.x.

Windows 2008R2 & 2012 server operating systems.

Actively supported enterprise IT tasks that include (but not limited to) installation, maintenance, and configuration.

Xcel Energy, Golden, CO September 2015 – March 2016

System Integrator

Executed appropriate troubleshooting protocols to achieve 99.99% uptime goals for Cisco proprietary platform.

Reviewed tickets and automatically generated outage reports, and initiated restoration in line with client-directed communication and resolution plans.

Provided single-point-of-contact resolution and dispatched ISP and network vendors to client repair sites.

Hands-on experience in installing, configuring, managing and troubleshooting of Microsoft Server Operating Systems Windows NT,2003,2003R2,2008,2008R2,2012,2012R2 .

Automation of system processes using Batch scripting, VB scripting and PowerShell.

Experienced in WINS, DNS, DHCP, Patch Management using WSUS, IBM Endpoint manager and SCCM.

Installed and configured Microsoft Office Suite, Open Office, Visio, Outlook, Printing and Windows networking.

Industrial Defender Configuration change management enables operators to track and audit device settings, applications, firewall rules and user accounts. Operators can view and baseline system configurations, ports, services and software.

Policy management allows operators to communicate new policies, track acceptance and manage conformance.

Endpoint security protects vital information systems and critical process controls.

Diebold Inc., Aurora, CO June 2014 – August 2015

System Engineer

Installation and maintenance of Microsoft operating systems (XP, Windows 7, Server 2003, Server 2008).

Microsoft services: Planning, design and implementation domain of infrastructure based on Microsoft Active Directory Service (2000, 2003, 2008), WMware 6.0, vCenter, vMotion,VDI.

Designed, implemented, configurated and administrated Microsoft Exchange mail server 2003, 2007, 2010 in a virtual environment, as well as in MSCS (cluster) environment.

Implementation of the antispam system Symantec Mail Security for Exchange.

Troubleshooting mail flow and spam.

Designed, implemented, configurated and administrated Microsoft Firewall proxy server ISA 2004, 2006, TMG 2010 in a virtual environment, as well as in NLB (network load balanced) environment.

Designed, implemented, configurated and administrated Microsoft WSUS, DNS, WINS, DHCP, RRAS, NLB, MSCS, CA.

JPMorgan Chase, Denver, CO 2012 – 2015

System Engineer

Configured, deployed and maintained VMware Images on Cisco UCS. Operated and maintained VMware in a Cloud Computing Enterprise Environment VMware ESX/ESXi 4.X, and 5.X., VMware vCenter/VMotion, VMware View 4,5 .X., VMware Operations Manager and VMware vCloud.

Worked with Windows Server 2008, Active Directory, working with in Data Center environment with hardware and management Virtual Machines Participation in API Integration as well as Multi-vendor integration.

Scripting Languages: PowerShell and Bash.

Responsible for design, architecture and implementation of Virtual Infrastructure environments using VMware.

Designed and implemented Microsoft Active Directory Environments.

Worked with in Microsoft Exchange, Microsoft SQL and Microsoft Share Point implementations and migrations.

Installed IOS, configure for: IPv4 and IPv6, BGP, OSPF, MPLS – RSVP, LDP, etc., Multicast – IGMP, Metro Ethernet / VPLS IP VPN, QoS, and deploy IP edge Routers and Switches. Experience with cloud computing and data center technologies.

Sulivan Prometric, Denver, CO 2011 – 2012

Network / System Engineer

Worked with the Data Center Deployment team to install virtualized environments based on the Citrix XenApp Server platform and Desktop platform.

Implemented Windows 2008 Enterprise Server platform in multi-domain, Active Directory structures.

Worked with UNIX/Linux.

Created and integrated with Cloud Computing to increase company agility and efficiency.

Installed, configured, and troubleshooted Cisco switches, routers, and firewall, providing support and maintenance in a large multi-site enterprise Network environment

MPLS network troubleshooting Deploy Cisco Catalyst 6500 Series, layer three switches and Nexus 5000/7000

Staged the installation and configuration of Dell Power Edge Servers in a virtual environment.

Veteran Affairs, Denver, CO 2011 – 2012

Network Engineer

Deployed and installed Microsoft Windows 2008 Enterprise Server solution including Active Directory configuration.

Deployed VMWare vSphere ESXi, vCenter VMWare ESX vSphere.

Worked with UNIX/Linux, UCS, Cisco Vblock, PowerShell and Bash scripts.

Participate in Engineering, concepts design, service models (IaaS, PaaS, etc.), as well as deployment models, practical implementations, operations.

Worked with Configured IBM and Dell servers Server Blade technology (Cisco / HP), Unix (AIX, Linux) and Windows 2008, EMC and Storage Tech Storage systems libraries, and iSCSI Systems for data center environments.

Configured Cisco routers 2400, 3600; Catalyst 6500 Switches; all levels of the OSI Model.

F5 Load balancing and traffic prioritization.

Monitored systems for capacity utilization, loads, and errors. Used HP OpenView and Concord.

Applied patches, software and driver updates, and hardware (firmware) updates for Microsoft Windows Enterprise Servers on Dell and HP blade servers.

Dish Networks, Denver, CO 2010 – 2011

System Engineer

Deployed companywide VOIP system using Cisco Unified Call Manager solution and Asterisk in several remote offices utilizing Wi-Fi, Dialup/Broadband and QoS. and load balancing.

Deployed and configured Cisco layer three switches and core routers.

Integrated Asterisk PBX with legacy phone equipment such as NEC, AVAYA, Nortel, and Meridian.

Deployed Windows 2003, 2008 Enterprise Server; rack and stack, IBM Storage Systems, and Dell and HP blade servers.

CenturyLink, Seattle, WA March 2008 – August 2010

System Engineer / Data Center Shift Supervisor

Responsible for providing day to day for the installation and maintenance to sustain Data Center operation of working with servers running various operating systems: UNIX, Linux, Windows, and Netware running on F5 networks, Dell and HP Servers.

Cisco IP Telephony: Planning, Design, Implementation, Operation, and Optimization.

Wireless technologies: AAA 3G, WiMAX, GSM/CDMA, Wi-Fi, Dialup/Broadband, IMS and VoIP with centralized subscriber databases and policy management.

Closed escalated trouble tickets for Technical Support, providing necessary information for root cause analysis indicating accurate impact assessment.

Analyzed, set up, monitored (utilizing protocol analysis tools), and audited systems to ensure LAN/WAN data network performance and security.

Initial hardware deployment: disk and tape backup and recovery, systems monitoring and alerting, system automation, network operations, and disaster recovery network monitoring using HP Open View, Concord.

Provided reports to the regional Data Center Manager.

Education

Master of Business Administration (Major in Project Management) 2005

Devry University Keller School Of Business, Denver, CO

Graduate Certificate in Business Administration (Major in Project Management) 2004

Devry University Keller School Of Business, Denver, CO

Associates Degree – Software Engineering Certificate 2001

Colorado University, Denver, CO

Certifications

CCNA Cisco Certified Network Associate

VCP 5.1 in Progress (completed class)

MCP Microsoft Certified Professional

MCP+ I Microsoft Certified Professional + Internet

CNE Certified Novell Engineer

MCNE Master Certified Novell Engineer

NNCP Nortel Network Certified Professional

Technical Skills

Hardware: Cisco 2500,2600, 3600, 800, 6500, 4500, 4000, 2900, & 1900; PIX 515R, 501, Classic 4000; 350, 1200 Series Access Points; Linksys, Nortel, 3COM, Optical,V.35; Kentrox, ADTRAN, Motorola, Cisco CSU/DSU;, Dell PowerEdge 6300, 2300, 4200; HP, Tektronix, Epson; HP JetDirect, NETGEAR. EMC, Storage Tech, Hitachi etc. Dell power adage blade servers’ platforms 7600, 7500, 7200, 7000, 3560, 2900, 2801, 2000, ASA55XX, Catalyst 6500, 4500, 3560 and 2900

Tools: Visio, LAN/WAN network monitoring management tools data centers management software

Operating Systems: Cisco, Foundry, Nortel, Juniper Net Screen, Unix /Linux multiple Unix distributions, Solaris, Linux, FreeBSD, HP/UX, AIX, DG/UX, Novell Netware and Microsoft Windows Server Active directory Citrix VMware

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