Tom Li

Experience

• 

  ICAN Solutions

  Sept 2007 - Apr 2010

  System/Network Engineer

  Installation and maintenance of the servers (Windows 2003/2008 and Exchange 2003/2007) and databases (SQL2005).Installation and maintenance of the Virtualization environment (VMware ESX3.5/ESX4 vSphere).Installation and maintenance of SAN environment (HP MS2012i).Managing the mobile phones (I-Mate, Blackberry and iPhone).Technical documentation and Disaster Recovery Plan.

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  PPB Advisory

  Apr 2010 - Aug 2011

  System/Network Engineer

  Liaising with third party network service provider to ensure a trouble free network operation environment.Installation and maintenance of the servers (Windows 2003/2008R2 and Exchange 2007/2010) and databases (SQL2005/2008R2).Administration of user accounts, design and implementation of Group Policies and deployment of softwares.Installation and maintenance of the Virtualization environment (VMware ESXi3.5/ESXi4).Installation and maintenance of the VMware View virtual desktop environment.Managing the SAN environment (Dell Equallogic).Managing backup solution including software (Commvault Simpana 8) and hardware (Tape library).Managing the document management system(Autonomy worksite)Managing the Alcatel and Mitel phone System.Migration of Exchange server from 2007 to 2010.Managing the BES (Blackberry Enterprise Solution).Writing technical documentation. Show less

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  Grays Auctions

  Aug 2011 - Nov 2016

  Senior System Administrator

  Maintaining relationship with vendors and service provider, working closely with IT manager on multiple projects such as VMware VDI, Data Center relocation, Office 365 migration and AWS cloud.Evaluate product from multiple vendors (Pure Storage, EMC XtremIO and Nimble Storage) and be part of the decision making process.Design, implement and optimize of the Virtualization environment (VMware vSphere 4/5/6)Design, implement and optimize the SAN environment (EMC XtremIO (FC) / VNX (iSCSI) and NetApp FAS SAN (NFS)).Design, implement and optimize of VMware View VDI infrastructure.Lead the data center relocation project, create move plan to ensure minimum downtime.Create Grays AWS cloud infrastructure for backend office and graysonline web hosting. Manage Grays public DNS services from CSCGlobal and AWS Route53.Liaising with third party network and hosting service provider (NextGen/NextGen Cloud Service) to ensure a trouble free network operation environment and hosting environment.Installation and maintenance of the servers (Windows 2003/2008R2/2012R2 Cluster, Exchange 2007/2010 and IIS webservers) and databases (SQL2005/2008R2/2012 Cluster).Monitor infrastructure using Nagios/SCOM, capacity planning using SCOM.Manage Dev Hyper V with SCVMM. Manage Microsoft Active Directory, design and implementation of Group Policies.Managing backup solution including software (Backupexec/Veeam/Acronis) and hardware (Tape library).Setup and managing Office 365 Exchange hybrid environment, setup Microsoft Azure AD connect, configure ADFS service.Setup and manage Grays Email Archiving platform using Dell Archive manager.Setup and manage Grays Email security gateway using Messagelabs and ProofPoint.Create Powershell commands and scripts for Exchange server management and automation process.Setup skype for business for Grays users.Understand ITIL framework to execute mature change, incident and problem management.Mentoring junior system administrators. Show less

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  MongoDB

  Nov 2016 - now

  • Technical Services Lead

    Aug 2023 - now

  • Senior Technical Services Engineer

    Feb 2019 - Aug 2023

  • Technical Service Engineer

    Nov 2016 - Feb 2019