PROFESSIONAL EXPERIENCE:

Confidential

Lead Administrator

• Overseeing the Active Directory and Wintel activities across the Multi Forest network of our Client,
• Support the Replications Network communication across multiple forests.
• Used SCOM to monitor Servers performance on the Network, server heart bits, system running out of disk space, and put system into SCOM maintenance mode for as long as required to avoid SCOM alert when system is offline during a reboot.
• Reviewed DNS, DHCP, Active Directory Vulnerabilities, Firewall Ports configurations
• Give a report to my Manager and write up the steps to fix any error found on the Network Infrastructure.
• Using service now concept to deal with Remedy ticket following and meeting Service Level Agreement of the Client.
• I use ADRAP Tools to diagnose the Network for Network Performance error like, ADSS, Replication Issue, and Failed Backups then follow up on how to solve the problem or come up with a Solution, some inform of Short SOP's.
• Strongly recommend implementing PROD changes in Test Environment before carrying them out the change in Production.
• Enforced the use of SCOM to monitor Servers hearth bit, notification of User account lockout, Server running low on HDD space and many More.
• I am the Escalation point for network access issue like AD Frequent Account lockout and solve it as quickly as possible, also wrote SOP on tracing and resolving lockout.
• I use PowerShell Script to check for Site Subnet mismatch after the ADRAP License expired.
• Fixed Remote Users having problem accessing their network resources while on VPN
• Edited and configured the DNS for Name Resolutions and reverse lookup.
• Work with the Security team to point out error with the Threat management Gateway.
• Troubleshoot Account lockout issue on the Network in FIM for external access users for frequent account lockout by using the Active Directory account lockout tools to locate the Domain controller locking user out, then check the Event Log of the DC to get the information of the Device causing the lockout. Leading to users with activated active sync on a mobile devices linked to their emails.
• Use SCCM to deploy Application to multiple Client Servers and Windows security patching for security Update

Confidential

Active Director Consultant AD Team SME

• Part of the 5 Active Directory Administrators overseeing Honeywell Windows's network infrastructure.
• Using AD-Rights Management Service, to restrict rights and give permission on network Shared Files Folders, Documents E-mails.
• Using it on email prevent mail forwarding copying,
• Using the ITIL standard to approach IT service management and Provide frame work for Identifying, Planning, delivery, and Support of IT services,
• Monitor Active Directory Sites and Services ADSS for Overlapping Subnet and Missing Subnets by Verifying with IP-Control.
• Manage enterprise level environment with over 170,000 AD Objects and 20,000 Users.
• Add and Remove User rights and privileges in Active Directory
• Migrate AD objects from one domain to other using ADMT Vs3.2.
• Perform Site Costing and link missing sites.
• Configure the Hyper-V Host Server to host the Virtual servers for the Europe Domain
• Wrote SOP on how to build Hyper-V servers with fixed drive size to prevent dynamic expansion.
• Manage over 175 physical Domain Controller 40 Virtual Server 10 Forest and 13 Domains.
• Upgraded the McAfee Solid Core Antivirus on the DC's
• Create Modify, Delete grant permissions to AD Objects.
• Decommissioned forty-two 2003 server and built 2008r2 to lead to elevate the Forest functional Level to 2008r2.
• Prepare Schema Update for the introduction of Lync 2013 and exchange 2013 in QA.
• Writing SOP for steps needed to accomplish some AD task, as there was little or no SOP with the client.
• Build fixed size drive for the Hyper-V Virtual DC's for the Europe Domain.
• Migrated AD Object using Active Directory Migration tools, Created a Trust between forests
• Migrated relocating ASIA forest Users to NAmerica Forest by installing SQL Express 2008 Sp1 to create the Database to allow the migration to be successful. To allow the AD user from Asia to have access to the resources in NAmerica forest and keeping the same account SID history.
• Quest recovery Manager to restore Deleted AD Objects
• Use Lync to follow up with customer in resolving IT problem.

Confidential

Windows Systems Administrator AD Lead

• Administer the 5 Forest and 9 Domains with more than 150,000 ADObjects and 50,000 AD users.
• Manage ADFS communication with other BestBuy vendors to share and Allocate Federated resources without having to set up a new Forest Trust.
• Migrated AD Users using Active Directory Migration tools, Created a Trust between forests
• Migrated relocating ASIA forest Users to NAmerica Forest by installing SQL Express 2008 Sp1 to create the Database to allow the migration to be successful. To allow the AD user from Asia to have access to the resources in NAmerica forest and keeping the permission from the source Domain to the Target Domain using the SID history.
• Configured and Maintained the Citrix, EXSI 5.1 Host, VMWare Servers
• Use PowerShell Script to locate Remove inactive AD account to Stale OU and delete after 91 days
• Remotely Manage Hyper-V Servers at our Bloomington Data Center
• Monitoring of the servers and Network Health using SCOM.
• Configured and Maintained the Active Directory Federation Services.
• Install configured Server 2012 in Test/QA Domain
• Solved the time sync Issue.
• Use Microsoft forefront Identity Manager to authenticate users' with Logon issue for password reset.
• Use FIM to manage User Identity, access control permission and allows user to reset their password without having to go through IT Service Desk Request for the Administrator to reset their password.
• Elevated the domain forest functional level in production.
• Enabled Active Directory recycle Bin wrote SOP Standard Operational Procedures for the restore steps. And many other Microsoft Best Practice
• Helped to train my offshore AD team to be more effective.
• Decommission over 42 Servers and Promote member servers to DC's
• Documented the disaster recovery plan for BestBuy on holiday readiness.
• Used PowerShell to run account cleanups for Inactive ADObjects for more than 31 days and moving them to stale OU, setting trust relationship between domains and forest.
• Create and delete account, set password policy. Responsible for implementing, configuring and managing Active Directory, DNS, DHCP, ADFS, Radius Servers Authentication, and Trust Relationship with the 9 domains and 5 forest.
• Upgrading of server 2003 to 2008 r2, managed the DMZ, TST, and QA forest.
• Respond to incident tickets using service now, made sure all domain controllers are syncing with the external timeserver source using the Microsoft time hierarchy standard.
• Provided on-call and remote support during off office hours and weekends.
• Radius server authentication for TagMobile issue with the BestBuy Asia computers could not be authenticated by the Radius Server in NA BestBuy.
• Monitor time sync for drift within tolerance.
• Use ADRAP to monitor the Risk Health assessment of the network
• Manage some remote computer using PC-Duo

Environment: Windows, Systems Backup, Server 2003/2008, Exchange 2010, DHCP, DNS, Remote access, Cisco Router 2600/ Cisco switches WS-C3750, FIM, VSphere, VMWare, Esx, and Microsoft Systems Center systems Center, Citrix, Radius Server,

Confidential

Windows System Engineer

• Short term contract to restore Hart's failed Network and backup their data using Backup Exec, in a complex network where they have over 167 Servers with different operating systems Platform Cisco, Windows server 2000,2003 and 2008r2.
• Solved the problem using Acronis to move data between different OS and 5 sites in different location, and then back it up with Backup Exec on the NetApp storage of the Robotic Library.
• Backup was tested and automatic report as scheduled from backup exec sends email directly to the IS Manager.

Environment: Windows, Symantec Backup exec, Server 2003/2008, McAfee Security Suit, Exchange 2010, DHCP, DNS, Symantec firewall, Remote access, Cisco Router 2600/ Cisco switches WS-C3750, VSphere, VMWare, Esx, and Microsoft Systems Center systems Center, IIS

Remote Windows Network Administrator

• Remote network support to manage the Active directory, DNS, DHCP, GPO and network security by setting file permission for staffs and ensuring the company's data is well protected as much as possible.
• Server 2008R2 Active directory services, to create user accounts, set up trust from other domain to allow access to a general application for the company.
• Provide network implementation support for data and voice network
• Configure the Exchange server for the headquarters and branch office in Singapore.
• Upgraded environment to Exchange 2010.
• Configure VMware/VSphere Hyper-V to reduce the work load on the main server and configure the console.

Environment: Symantec Backup exec, Server 2003/2008, Exchange 2007, DHCP, DNS, Symantec firewall, Remote access, Cisco Router 2600/ Cisco switches WS-C3750, VSphere, VMware, and Firewall.

Confidential

Remote Network Administrator

• Remotely managed all clients of Rash-Mot Int'l from U.S. to support the Junior Network Engineers in the field.
• Utilized server 2008R2 Active directory to create user accounts, sites, and trust from other domain to allow access to a general application for the company.
• McAfee security suite to monitor and prevent internet intrusion and virus on the network.
• Provided network implementation support for data and voice network
• Configure VMware Hyper-V to reduce the work load on the main Server.
• Configured the console and V-Sphere, balanced the load on the servers, and maintained the network environment, etc.
• Created detailed report with Oracle JD Edwards for the CEO regional manager.
• Used SharePoint as a platform to create sites using SharePoint Designer or Visio for our staffs in all branch offices to work together on Project and store it on the SharePoint to avoid hard disk space use up on client's computer.
• Provide deployment support planning and network integration with Active directory and setting group Policy as deemed and DHCP, DNS and remote access for remote staffs.
• Perform configuration audit for network devices.
• Provided change window support for critical network activities.
• Provide first office application FOA support for new technologies

Environment: Symantec Backup exec, Server 2003/2008, Exchange 2007, DHCP, IIS, DNS, Symantec firewall, Remote access, Cisco Router 2600/ Cisco switches WS-C3750, VSphere, VMware, and Firewall.

Confidential

Project Manager / MS Exchange Server

• Maintained the Microsoft Exchange Server 2007.
• Migrated Exchange Server 2007 to 2010.
• Installed, configured, operated and troubleshot Microsoft Exchange Server.
• Provided support and coordinated the SharePoint environment.
• Provided alternative access to the shared data on our SharePoint site, web servers, file servers, anti-virus servers, departmental servers and storage systems.
• Designed, setup, configured, monitored, optimized the VMware infrastructure and associated technologies.

Environment: McAfee Security Suit, Symantec Backup exec, SharePoint 2007, Server 2003/2008 r2, Exchange 2007/2010, DHCP, DNS, Symantec firewall, Remote access, Cisco Router 2600/ Cisco switches WS-C3750

Confidential

Windows Network Administrator

• Analyzed, plan, and specifies systems most appropriate for clients needs.
• Investigated evaluated network solutions. Advised the IT team leader on the suitability of alternative solutions for user's satisfaction.
• Remote network support engineer responsible for network security during and after office hours.
• Remote support for users on computer network hardware problems by phone or remotely connecting to their computers.

Environment: Server 2003/2008, Exchange 2007, DHCP, DNS, Symantec firewall, Remote access, Cisco Router 2600

Confidential

IT Consultant

• Short contract to re-configure the West African Bitumen Emulsion company's network for more effective communication within the branch offices to the Head office which are about 18-60km to themselves and configure user privilege and rights to.
• Conducted training for all the computer users on proper use of the computers Network Device shearing.

Environment: Skills Used: Server 2000/2003, Exchange 2003, DHCP, DNS, Symantec firewall, Group Policy, Cisco Router 2600/ switches WSC3750.

Confidential

Network Systems Engineer

• Increased customer satisfactory in use of the computers.
• Transforming a cyber caf into an Internet service provider ISP .
• Responsible for fault - tolerant inter-network design and performing load balancing for both LAN and WAN
• Directed all maintenance works for the company and its clients.

Environment: Server 2000/2003, Exchange 2003, server Upgrade, MS Office 2000, Office, McAfee firewall/Antivirus, win XP, Linksys Routers Switches SRW 24.