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Senior System Administrator Resume

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San Clemente, CA

SUMMARY:

  • 15+ years career experience in the design, architecture, migration and management of enterprise IT solutions.
  • Extensive experience in infrastructure build - out and application implementations to support overall corporate strategic goals.
  • Strong leader recognized for motivating and guiding teams in Helpdesk and IT Operations Support
  • Server Solutions (Cisco Blade, Dell, HP, IBM, Super Micro)
  • Linux and Windows server operating systems (CentOS, Ubuntu, Windows 2008, 2012)
  • Firewalls, Routers, Switches, Enterprise Wireless Systems (CISCO, Dell, Fortinet, HP, Meraki, SonicWALL, Ubiquiti)
  • Storage Devices (EMC VNX 5200, Data Domain 2500, HP SAN Storage HP2000)
  • Virtualization (VMware vSphere, VDP, Operation Manager)
  • Database (MSSQL, MySQL)
  • Amazon Web Services (EC2, ELB, ASG, S3, EFS, RDS, VPC)
  • Office 365 (Azure AD, Exchange Online, MDM, SharePoint, Skype and OneDrive for business)
  • Web Servers (Apache, IIS)
  • Voice over IP Telephony (Asterisk, FreeSwitch)
  • Backup and Recovery (Acronis, CloudBerry, vSphere SRM, Veeam Backup)
  • Programing (ASP.net, C#)
  • Team leadership

CORE QUALIFICATIONS:

  • Complex/Hybrid systems infrastructure architecture design, consolidation, optimization and virtualization
  • Systems migration
  • Backup and disaster recovery
  • Enterprise systems and network security
  • Enterprise application implementation
  • Monitoring and reporting solutions
  • Policies and procedures implementation
  • Cloud management

PROFESSIONAL EXPERIENCE:

Confidential, San Clemente, CA

Senior System Administrator

Responsibilities:

  • Lead infrastructure architecture, network design, server build-out, and security implementation for all technology platforms and end-point computer needs
  • Manage, oversee, and provide guidance to network, systems administration and helpdesk staff
  • Oversee Helpdesk support & establish SLA guidelines
  • Lead new technology research and aid IT roadmap guidance
  • Assessing server, storage and infrastructure sizing, analyzing hardware sizing to meet application requirements, designing load balancing and clustering solutions to architecture standards
  • Collaborating with staff, users and senior management on establishing business goals
  • Reviewing new and existing IT projects, system designs, plans and conducting research on emerging technologies to support changes in infrastructure
  • Design, implementation and migration all company websites into a high available and cost-effective solution on AWS (EC2, ELB, Route53, ASG, S3, RDS, VPC and IAM)
  • Construct enterprise end-point security using Trend Micro full-disk encryption and Trend Micro OfficeScan solutions
  • Assessed company wide network Infrastructure, re-design and implementation
  • Built co-located virtualized infrastructure using VMware vSphere solutions
  • Data Center rack build out
  • Migration all company email accounts from Rackspace into Microsoft Office365 cloud platform (Azure AD, Exchange online, SharePoint, Skype for business, OneDrive)
  • Integration of company billing application (Medisoft) into RemoteApp accessible from web
  • Performed centralization of all wide-nation offices Wi-Fi system into a centralized managed cloud portal
  • Implementation and configuration Cisco Meraki cloud firewall solution (WAN, LAN, Traffic Shaping, Site-to-Site VPN, Client VPN, MDM, QOS)
  • Company-wide user management
  • Conserved and administered network infrastructure, Wi-Fi and end-point devices of all offices across US (12 offices)
  • Design and implementation surveillance system
  • Implementation of asset management system using open source web application
  • Staff training

Confidential, San Clemente, CA

System Administrator

Responsibilities:

  • Providing technical support to end-users, designing systems and implementation systems infrastructure
  • Guiding helpdesk staff to provide exceptional service
  • Top level user accounts administration
  • Research on new technologies
  • Analyze emerging technologies and make recommendations for adaption
  • Install and configure virtualization infrastructure using VMware vSphere
  • Implementation and configuration corporate office network infrastructure and servers (AD, DHCP, DNS, Firewalls and all network gears)
  • Re-developed company time tracking system and Active Directory interface web application using ASP.NET, C#, IIS and MSSQL
  • Migration and implementation from old digital telephony system into a cost-effective centralized cloud VoIP phone system
  • Upgraded all offices door security to a centralized badge security control system
  • Developed a backup solution by building a windows application using Microsoft .Net (C#)
  • Implementation, setup and customization 5 ticketing systems using Apache, MySQL and PHP over CentOS Linux
  • Install, setup and configuration survey system using an open source web application
  • Install, setup and configuration Microsoft Forefront TMG 2010 proxy server
  • Install, setup and configuration Microsoft SharePoint 2010
  • Convert old physical servers into virtualized machines
  • Administered multiple offices network infrastructure and gears
  • Helpdesk training

Confidential

Network & System Administrator

Responsibilities:

  • Recruited as head network engineer to provide architecture design and IT management services to upgrade old environment
  • In charge of selecting new software and hardware for the company IT upgrade
  • Providing secured main office to office connections (VPN)
  • Technical support duties covering infrastructure, network, user account admin, hardware and software troubleshooting, end-user technical support
  • First design, install, manage, cabling & wireless networks
  • Install, configuration and management Windows 2003 Server, DHCP, DNS, Active Directory, Microsoft Internet Security and Acceleration Server 2006 (ISA Server 2006)
  • Upgrade ISA Server 2006 to Microsoft forefront Threat Management Gateway (Forefront TMG)
  • Install and management of bandwidth splitter (traffic shaping) for forefront TMG
  • User management and administration
  • Implementation IP cameras and NVR
  • Install and conduct maintenance of SQL Server 2005
  • Managed workstations operating systems (Windows XP, Windows Vista, Windows 7, Linux desktops)

Confidential

Network Administrator

Responsibilities:

  • Recruited to provide network infrastructure, design network expands, implementation and maintenance
  • Migrate to new servers, manage and support new systems
  • Re-develop company inspection software (Dataease) for all 11 international branches
  • Assessing server, storage and infrastructure sizing, analyzing hardware sizing to meet application requirements
  • Provide technical support to end-users
  • Re-developed Dataease software by migrating 11 individual stand-alone versions into 1 centralized app for all international office branches. Created new user-friendly entry forms and robust reporting system
  • Design, install and manage Active Directory and Group Policies
  • All user accounts management
  • Installation and configuration centralized Anti-Virus system (McAfee Protection Pilot Server)
  • Web proxy implementation using Linux Squid
  • Implementation and management Exchange Server 2003.
  • Forcing strict user policies under AD group policies
  • Dataease administration
  • Installation, configuration and maintenance Microsoft SQL 2003

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