Summary
Overview
Work History
Education
Skills
Certification
Technicalskills
Training
Thirdpartyapplications - Installationandconfiguration
Timeline
Generic

Danny Lien

Katy,Texas

Summary

10+ years’ experience installing, maintaining XP, Windows 7,8,10,11 Operating Systems, Windows Server 2003, 2008 R2, 2012 R2,2016 R2, 2019,2022 8+years’ experience installing hardware and software on server and desktop including RAID configuration 9+ years' experience with Active Directory Administration and Group Policy skills 8+ years’ experience with Active Directory, and Exchange Server 2010 server management and maintenance EMC console 8+ years’ experience with Windows System Administration and with the implementation and management of Hyper-V environments and VMWare environment 8+ years managing SonicWALL NSA 2600/ 3500 VPN devices or VPN equivalent and Brocade ICX-6610 8+ years’ experience customer support in a medium scale corporate environment (500+ nodes) 8+ years’ experience in Apple Mac Os X Snow /Leopard installation and troubleshooting 8+ years’ experience with Virus and Spyware removal, Trend-Micro Worry-Free Business Solution, ESET Enterprise 7+ years managing on premise ShoreTel VOIP system across a multi-site environment Ability to troubleshoot and resolve problems in a technical, team-oriented environment, demonstrate customer empathy, good customer diplomacy skills and problem ownership

Overview

13
13
years of professional experience
1
1
Certification

Work History

Systems Administrator

CSAT Solutions
05.2021 - 10.2024
  • Administration of Microsoft Intune, including policy and application management
  • Administration of Active Directory and Azure AD, including user and group administration and group policy management
  • Administration of the client's file storage infrastructure
  • Administration and configuration of the client's Microsoft Azure IaaS environment
  • Patch and update management of all Microsoft Windows systems within the enterprise
  • Assist in the administration and configuration of the client's Office 365 environment, including administration of related security tools for email and data loss prevention
  • Monitor and manage Azure resources, ensuring optimal performance, reliability, and security
  • Perform routine maintenance and updates to keep systems up-to-date
  • Diagnose and resolve issues within Microsoft Intune, including device compliance, application deployment, and configuration policies
  • Provide support to end-users to ensure devices meet security and compliance requirements
  • Assist in maintaining and troubleshooting hybrid configurations involving on-premises and cloud resources
  • Configure and manage hybrid Active Directory setups, ensuring secure and synchronized identity management
  • Manage user accounts, groups, and permissions in Active Directory
  • Support the synchronization between on-premises AD and Azure AD, and troubleshoot any related issues
  • Set up and maintain SSO configurations across various applications and services
  • Diagnose and resolve SSO-related issues to streamline authentication and improve user experience
  • Investigate and resolve Level 2 support requests related to Azure, Intune, Active Directory, and SSO
  • Document procedures, configurations, and troubleshooting steps for future reference and knowledge sharing
  • Work closely with IT teams, providing support and expertise as needed
  • Share knowledge and best practices with other team members to enhance overall team capabilities
  • Delivering Windows server management in a data center environment (2012, 2016, 2019, 2022 Server) including an ability to develop and Write Windows scripts and PowerShell scripts
  • Implement VMware Vsphere7.x,8.x environments and Hyper-V environments
  • Manage multiple server backup systems and data/image recovery, server migrations, upgrades, and new server deployments
  • Apply security patches, updates, and firmware upgrades to ensure server and virtualization platform stability and security
  • Perform preventative hardware and software maintenance tasks; configure and maintain system-wide backup, storage, and recovery systems using Veeam Backup
  • Administer and maintain end user accounts, permissions, and access rights; perform installation and racking of network gear and cabling

Systems Administrator/Networks

NC Dynamics LLC
11.2017 - 03.2021
  • Administers the day‐to‐day operations and support of on-premise and cloud-based virtual desktop and server environments and PC‐based systems or other major systems’ functions including operations support for computer equipment and associated data communications facilities to ensure reliable and effective operations
  • Install and upgrade computer components and software, manage virtual servers, and integrate automation processes Templates, worked with clones and snapshots of Virtual Machines
  • Installed, configured, maintained, and troubleshoot a Windows Server environment including Active Directory, DNS, DHCP, Group Policy, File Services, DFS, and Print Services
  • Setting up V-Motion, HA, and DRS, across clusters Configured Alerts for vSphere on vCenter Installed patches and updates on ESXi hosts using VMware Update Manager
  • Upgrade systems and processes as required for enhanced functionality and security issue resolution
  • Administrate infrastructure, including firewalls, databases, malware protection software and other processes
  • Installing and configuring hardware and software, including pcs, network printers, copiers, WAPS, phones systems, Switches, Routers and Windows 10, MS Office 2019/Office 365
  • Rack, design, install, configure, maintain, troubleshoot and support (LAN), (WAN), Internet Systems, and Network Systems
  • Install, Troubleshoot, Administer, and Maintain client-server, workstation, networking, and VoIP systems remotely or on-site
  • Rack Stack Cisco Meraki Firewall, SonicWALL Firewall, Configurations, and maintain troubleshooting
  • Configure new Dell EqualLogic PS6100 SAN via Fiber, iSCSI, and Ethernet creating New Volumes, Lun's and CIF$ shares
  • Review and advise on future upgrades, optimizations, and new technologies to better service our customers and efficiencies
  • Monitor network to ensure network availability to all system users and perform necessary maintenance to support network availability
  • Administrated ESET Smart Security Premium, enforcing URL monitoring, log generation and auditing, and anti-virus deployment
  • Responsible for the installation, configuration, ongoing monitoring and administration of Windows Server (2008, 2012, 2016, 2019) and its related software
  • Manages Group Policy Objects (GPO) throughout the Active Directory across different domains in the MS Windows environment
  • 2008-2019
  • Responsible for developing and maintaining Organization Units (OU) and managing user security using group policies according to company guidelines
  • Strategizes and develops automated deployment, and incremental patch updates using Microsoft’s SCCM (System Center Configuration Manager) patch manager or other tools
  • Troubleshoot hardware and software errors by running diagnostics, documenting problems and resolutions, prioritizing problems, and assessing impact of issues
  • Resolves Windows and server applications incident tickets, serving as part of the after-hours support on a rotating basis
  • Create and maintain Inventory Database for company Hardware and Software Assets
  • Also responsible for handling software licenses and maintaining renewal contracts
  • Perform or delegate regular backup operations and implement appropriate processes for data protection, disaster recovery, and failover procedures
  • Prepares and maintains detailed documentation of network configurations and cabling layouts, hardware equipment
  • Organizes and maintains hardware equipment, cables, racks, and cabinets in the data center
  • Designs, develops and migrates applications to a Cloud environment running on AWS, Azure
  • Travel to customer locations on an as-needed basis, participate in backup on-call rotation for after-hours support as necessary

Systems Administrator

Main Electric Supply
12.2015 - 08.2017
  • Responsible for the architecture, design, and implementation of enterprise environment using VMware ESXI 5/5.5/6.0 for server virtualization, consolidation, and future development at different location
  • All manners of end user support including desktops, laptops, Apple iPhone/iPads, Android mobile phones and other wireless devices
  • Manage Physical and Virtual servers for the Datacenters located in Irvine, CA and more than 50 remote offices across the Globe as a member of Server/Storage/Virtualization Administration Team
  • Perform installations, repair and preventative maintenance of physical servers and VM server environment
  • Troubleshoot network performance issues, Troubleshoot LAN/WAN systems
  • Analyzing and implementing OS patches and hot fixes as well as other OS configurations and updates
  • Deploying updates with System Center Configuration Manager SCCM, WSUS
  • Install, maintain, and administer Windows 2008 R2 and 2012 R2 DC domain controllers, file, print, application and remote desktop terminal services servers
  • Install and configure Windows 2008 R2 and 2012 R2 Servers using Microsoft Windows and VMware
  • Responsible for Microsoft cloud-based enterprise collaboration, messaging, and office productivity tools and solutions, such as Exchange and Office365
  • Creating and managing Virtual Machines and Templates, worked with clones and snapshots of Virtual Machines
  • Worked on Migration Projects Involving IIS 5.0 and IIS 6.0 based applications to IIS 7
  • Install / Configure MS Office 2007, 2010 and 2013 with Outlook and Lync, administration MS Exchange 2003 and 2010
  • AD domain users and computers accounts, new security and distribution groups, migration of AD objects using ADMT tool
  • Administering DNS such as adding A and MX records and creation of new zones and replication
  • Administering Domain trust, AD replication and creation of new sites and subnets
  • Administering DHCP Servers creating and maintaining scopes

Systems Administrator

Lotus & Windoware Inc.
03.2012 - 11.2015
  • Primarily responsible on designing, implementing, and deploying system infrastructure technology including Active Directory, Windows Server, GPO, Cluster, Citrix XenApp 6.5, EMC SAN VNXe 3200, Cloud Backup, SharePoint, Office 365, Lync, Exchange email online, Fax servers, Print servers, and Virtualization Infrastructure (Citrix XEN Server 5.6.)
  • Setup user’s android, iPhone, iPad, android table email with active sync in Microsoft office 365
  • Setup and Configure Microsoft Office Suite 2003/2007/2010/2013 applications
  • Install new and rebuild existing servers 2008 r2 configure hardware, peripherals, services, settings, directories, storage, in accordance with standards and project/operational
  • Physically built and configured IBM/Dell/HP Server Equipment
  • Install new/reconfigure existing switches, routers, SonicWALL firewalls, wireless access points
  • Supports maintains using Control Now Monitoring and documents LANs, WANs, network segments, and intranet systems, phones, workstations and servers
  • Stays up to date with relevant state-of-the-art technology, equipment, and/or systems, evaluates new hardware and software technologies and presents analysis purchase recommendations to the administration team and to management
  • Troubleshoots networks, systems and applications to identify and correct malfunctions and other operational problems
  • Maintains system security policy, to include firewalls, host and client access, file permissions and user accounts
  • Researches and recommends appropriate hardware, software and configuration for specific users ‘needs and projects
  • Repair and recover from hardware or software failures, Coordinate and communicate with impacted constituencies
  • Apply OS patches and upgrades on a regular basis and upgrade administrative tools and utilities
  • Configure/Add new services as necessary
  • Plan, coordinate, and implement network security measures in order to protect data, software and hardware
  • Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups
  • Execute daily backup operations, ensuring all required file systems and system data are Successfully backed up to the appropriate media, recovery tapes or disks are created, and media is recycled and sent off site as necessary
  • Perform ongoing performance tuning, hardware upgrades, and resource optimization as required Configure CPU, memory, and disk partitions as required
  • Antivirus Software Administration in TrendMicro installs and configurations
  • SonicWALL configure and setup, Remote Access Configure and maintain remote access technologies and access such as Remote Desktops Services, VPN, and SSL VPN

Education

Sql Server 2008,2016,2017 and VMware vSphere 4.1/5.0/5.1/6.0/6.7 -

Coastline Community College for Professional Training
05.2011

Computer Hardware/Network Specialist -

California Learn Center
Orange, CA
07.1999

Computer Hardware/Network Specialist -

City College of San Francisco
San Francisco, CA
06.1997

Skills

  • Install and upgrade OS
  • Install server application
  • Install third party application
  • User security control
  • Web sense Security Filtering
  • Files and directories security control
  • Troubleshoot abnormal system and application errors
  • Setup and troubleshoot networking issue
  • Install & Setup Symantec Backup Exec
  • Install & Configure Microsoft Hyper V 2008 R2 Datacenter 2012, 2016, 2019, 2022
  • Install configured VMware vSphere 41, 51, 60, 67, 70
  • Setup multiple domains and workgroup
  • Setup NIC teaming for redundancy
  • Install time server (NTP) and time service synchronization
  • Terminal Service administration
  • Setup DHCP
  • WINS
  • DNS
  • TCP/IP
  • IPsec
  • VPN
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • Setup and configure IIS
  • FTP
  • SMTP
  • Routing
  • IIS 50
  • IIS 60
  • IIS 70
  • Setup MS Exchange Server 2003
  • Setup MS Exchange Server 2007
  • Setup MS Exchange Server 2010
  • Setup MS Exchange Server 2013
  • Setup MS Exchange Server 2016
  • Setup and configure Sonic Firewall TZ 215
  • Setup and configure NSA 2600 Wireless-N
  • Cisco Switches
  • Routers
  • Firewalls
  • Setup iSCSI
  • Fiber channel storage (SAN and NAS)
  • Maintaining Shortel Phone System
  • Administer switches
  • Administer bridges
  • Administer routers
  • Administer servers
  • Administer wireless infrastructure
  • Administer phone systems
  • Administer network printers
  • EIGRP routing
  • Bandwidth evaluations
  • Parts inventory management
  • LAN and WAN control

Certification

  • Certified in Microsoft Network Technology
  • Microsoft/MCP

Technicalskills

Install and upgrade OS, Install server application, Install third party application, User security control, Web sense Security Filtering, Files and directories security control, Troubleshoot abnormal system and application errors, Setup and troubleshoot networking issue, Install & Setup Symantec Backup Exec, Install& Configure Microsoft Hyper V 2008 R2 Datacenter 2012,2016,2019,2022, Install configured VMware vSphere 4.1,5.1,6.0,6.7,7.0, Setup multiple domains and workgroup, Setup NIC teaming for redundancy, Install time server (NTP) and time service, synchronization, Terminal Service administration, Setup DHCP, WINS, DNS, TCP/IP and, IPsec, VPN, RAID 0,1,5,6,10, Setup and configure IIS, FTP, and SMTP, Routing, IIS 5.0/6.0/7.0, Setup MS Exchange Server 2003/2007/2010,2013,2016 and Post, Setup and configure Sonic Firewall TZ 215 /NSA 2600 Wireless-N, Cisco Switches, Routers, Firewalls Setup, iSCSI and fiber channel storage (SAN and NAS) Setup and configure, Maintaining Shortel Phone System Administer switches, bridges, routers, servers, wireless infrastructure, phone systems, network printers

Training

  • City College of San Francisco, CA, 06/97
  • California Learn Center, Orange, CA, 01/98 - 07/99
  • Coastline Community College for Professional Training, 01/09 - 05/11

Thirdpartyapplications - Installationandconfiguration

  • SQL server basic operation
  • My SQL Server basic operation

Timeline

Systems Administrator

CSAT Solutions
05.2021 - 10.2024

Systems Administrator/Networks

NC Dynamics LLC
11.2017 - 03.2021

Systems Administrator

Main Electric Supply
12.2015 - 08.2017

Systems Administrator

Lotus & Windoware Inc.
03.2012 - 11.2015

Computer Hardware/Network Specialist -

California Learn Center

Computer Hardware/Network Specialist -

City College of San Francisco

Sql Server 2008,2016,2017 and VMware vSphere 4.1/5.0/5.1/6.0/6.7 -

Coastline Community College for Professional Training

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Danny Lien