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