Alejandro A. Visitacion
Sta Maria Laguna
Summary
Motivated and detail-oriented IT professional seeking a System Administrator position to leverage my expertise in managing and optimizing IT infrastructures. With a strong foundation in Windows and server environments, network, and system troubleshooting. Eager to embrace challenging assignments that foster professional growth and align with the company's technological advancements.
Overview
22
22
years of professional experience
1
1
Certification
Work History
System and Network Administrator
Branders.com
08.2016 - 05.2025
- Managed and configured Active Directory across the entire organization.
- Create a Group Policy Object (GPO) that applies to users and computers within the organization.
- Create new user accounts and reset user passwords in case of lockout or forgotten passwords.
- Disable user accounts for all separated employees.
- Created new user accounts in Active Directory for onboarding employees, ensuring proper group membership, access permissions, and mailbox setup according to organizational policies.
- Responsible for adding DNS records for websites that need to be accessed within the organization's internal network.
- Responsible for creating and managing security groups used to control access to SharePoint sites and shared files, ensuring appropriate permissions are assigned based on user roles and organizational policies.
- Responsible for providing access to all printers shared on the network based on user needs.
- Responsible for managing and configuring the DHCP server.
- Create a DHCP scope for each subnet in the company network.
- Reserve IP addresses based on user requirements and company needs.
- Responsible for managing and monitoring the Office 365 (O365) email system, including user mailbox creation, distribution group management, spam filtering, and ensuring email service availability and security through the Microsoft 365 admin center.
- Create an email account for the new onboard users in the company.
- Validate and provide an O365 license based on the user's needs.
- Managed SharePoint and provided access to the users' SharePoint needs.
- Responsible for managing the Microsoft Teams account.
- Responsible for troubleshooting and fixing O365 user account or support user related to O365 for email concern.
- Responsible for managing the Labtech Connect Wise Automate Server.
- Create a Technical Support User account to access the Labtech console.
- Update the Patch for the Labtech server.
- Update Workstation Windows Patching.
- Monitor the Client machine connected to the Connect Wise server.
- Responsible for managing and configuring the 3CX phone system server.
- Create a user extension.
- Configure the user's IP phone based on the extension provided.
- Responsible for making any necessary changes to modify on the server if needed.
- Responsible for managing and configuring Mimecast Email Security.
- Monitor and check the Mimecast email security web console.
- Responsible for the release of an email based on the user's request.
- Responsible for the creation of email policy based on the user's needs and the company's needs.
- Responsible for managing and configuring AWS Amazon Connect.
- Create an account and provide an extension for the onboard user.
- Disable the account and extension for all separated employee that has an account on Amazon Connect.
- Ensure that their account is working.
- Responsible for any concern that needs investigation on that system.
- Responsible for managing and configuring the Webroot Web server.
- Create an account for Helpdesk and Technical support that need to access the console.
- Monitor all computers connected to the webroot server and check if the computer is infected or not.
- Create a Ticket if there is a machine that needs to be checked.
- Responsible for managing and configuring the Acronis Cloud Backup Tool.
- Responsible for the installation of a client-server tool that will be used to connect to the Acronis cloud server backup.
- Responsible for the monitoring of the backup if all servers run the backup based on the schedule that the company sets.
- Responsible for the restoration of Data file just in case the user has accidentally deleted files on the shared server.
- Responsible for the configuration and monitoring of all VMware server on the network.
- Ensure that all servers are working and no issues; if there are issues responsible for fixing them.
- Ensure that all network devices are working and accessible.
- Manage DM, BR, BP website servers, which is a sales site for a user, creates accounts for new hires.
- Responsible for escalating network issues when we have a problem with the ISP.
- Responsible for fixing issues based on the ticketing we use JIRA ticketing system, this is also user base request.
- Responsible for responding as soon as possible within the SLA time Limits for the ticket created by the user.
- Manage Network firewalls such as Fortinet.
- Responsible for creating a VPN tunnel, especially using the FortiGate firewall.
- Responsible for monitoring VPN Client users, creating accounts, and managing the MFA server for VPN Client users.
- Responsible for securing the backup configuration for every Switch, Router, and Firewall.
- Manage and configure the switch, create a VLAN assign workstations to a specific VLAN.
- Manage and configure Ruckus Wireless access point, Mac filtering, and create user access.
- Responsible for checking the rconfig server if this server creates a backup(a server that backs up the config for the switch and firewall daily).
- Manage and maintain PRTG Server, including Probe, creating and adding a device to the PRTG Monitoring System.
Network/System Administrator
Firqat Al-Yamama Establishment
06.2014 - 06.2016
- Responsible for configuration and modifying the Cisco network router, configure a new subnet.
- Responsible for the configuration and modifying of all Cisco switch devices Create new VLAN.
- Responsible for converting LAN port to specific VLAN base on the user Department and assign VLAN.
- Manage and maintain all network device especially Cisco Router and Cisco Switch.
- Ensure That the network devices are secured by changing all network passwords based on Network passwords policies.
- Performs switch network installations such as upgrades, preventive maintenance, back-up, and any network task.
- Responsible for managing and configuration of Active Directory.
- Create GPO that will be applied for users and computers inside an organization.
- Create new user accounts, Reset user password in case of a lockout or forget their password.
- Disable user account for all separated employee.
- Responsible for adding DNS for a website that needs to access inside network organization.
- Responsible for providing access for all printers shared on the network base on user needs.
- Responsible for managing and configuring the DHCP server.
- Create a DCHP subnet(scope) for every subnet in the company network.
- Reserved Ip addresses base on the user needs and company needs.
- Responsible for managing and configuring the MDT server.
- Monitor Image on the MDT server.
- Updates the MDT rules and create new Rules if needed.
- Create a computer image and deployed this into the MDT server.
- Ensure that the image has no issue when we use it for imaging or rebuilding the computer via network.
- Responsible for managing and Monitoring of Exchange 2010 Email System.
- Create an email account for the new onboard users in the company.
- Disable account for all separated employees.
- Create a distribution list as requested by the user and as need by the company.
- Responsible to make this server working at all times.
- Responsible for managing and Monitoring the WSUS 2012 server.
- Updates windows patch server for all client computer and all the server handle.
- Execute and Approved and deploy windows updates for all the clients' machine within the network
- Ensure that all clients and servers are patches updated.
- Manage Lync 2013 Standard Edition Server, Create and enable user account to use Lync 2013 Client.
- Provides Technical support for all the users within the Ministry of Interior.
- Performs planning and implementation for simple to moderate design changes, as well as troubleshooting.
- Responsible for the backup and restore of the server handle.
- Project Base: Ministry of Interior
Remote Desktop Analyst
Accenture Philippines
07.2013 - 06.2014
- Responsible to fix Client machine via Remote tools Log me in.
- Optimized Client machine makes sure that the windows patch is installed.
- Ensure that the client machine System is Clean and antivirus is updated.
- Responsible for the printer installation.
- Responsible for configuring user email.
- Project Base: Arrow- Client (Best Buy)
Migration Engineer
Accenture Philippines
08.2012 - 07.2013
- Migrate all windows XP into Windows 7
- Responsible for the installation of all application needs by the user, including the restoration of all the data or files.
- Performed software installations in a customer machine.
- Restore all printers installed into windows 7 after migration.
- Escalate all issue encounters during migration to the appropriate escalation point.
- Used LMI or Log me In Remote tool to restore data, including restoration tool to restore profiles and other settings from XP to Windows 7
- Project Base: Arrow-Client (BG)
Workstation Support Engineer L1
Accenture Philippines
08.2011 - 08.2012
- Designs and implements workstation solutions
- Responsible for the testing and analyzing issue encounter in the production area, Coordinate and escalate this to provide automation to lessen the time consumed in resolving this issue.
- Supports/Troubleshoots workstation problems
- Responsible for the support for all users in Accenture, Troubleshoot both hardware and software application especially to allapplications used in production like CITRIX, Abacus, SAP, Email support, Printer support and software security support using system antivirus.
- Convert Data node for specific VLAN that the user needs.
- Responsible for the installation of all printers both IP dedicated printer and all shared printer. Also, coordinate with a vendor if the printer encounters hardware issues.
- Responsible for the security of all desktop machines.
- Support transition and movement for projects, ensuring network connection, phone applications working.
- Responsible for deploying of CISCO IP phone and Avaya phone within the facility of Accenture.
- Responsible for Dailycheck of conference area,checkVLANnodes ensure that is working,checkDataportandensurethat theconference has networkconnectivityfordailyuse.
- Insure provide Quarterly Pm to all machine used by project especially in the facility. Responsible for the rebuild or reimage of the machine.
- Responsible for the DBAN or deleting files for the machine to surrender to the asset
- We are required to shared knowledge and experience with others or to the team.
- Applies procedures to ensure accuracy of output and adopts a continuous improvement approach we are required to apply all the policies and procedure especially in DC-ISU department.
- Escalates issues and seeks advice when faced with complex issues/problems
Field Technical Support Engineer
Strategic Networks Incorporation
02.2008 - 07.2011
- Responsible for the installation of a network printer and standalone printer and provide support for the printer installed.
- Support all end-user in removing virus on their computer using licensed software, Trend Micro and Sophos antivirus
- Analyze computer hardware and provide a computer assessment report for all computer need to upgrade and diagnostic report for parts already defective.
- Replaced all defective parts for all desktop that have parts problems.
- Do fieldwork checking computer hardware problem and software support for all standard software used by URC, Digitel, and Robinsons.
- Configured Microsoft outlook email for end-user and support user in their mail problem
- Configured lotus notes mail 6.5 in all Robinsons and Robinson bank users.
- Provide Hands and Eyes support in Network Engineer and System Administrator To resolved Network and Server Problem.
- Project Base: HP - Company handles in Laguna Area Universal Robina Corporation: Robinsons Bank: Digitel Telecom: Robinsons Malls, Sun Cellular Store
Technical Support Engineer/Helpdesk
Toplis Solution/First Data Corporation
02.2006 - 09.2007
- Responsible for configuring Microsoft outlook for end user, backup their mail and providing solution for their mail problem.
- Responsible for installation of network printer and standalone printer and providing technical support for the printer installed.
- Assist in maintaining and setting up data cabling and network hub and switches.
- Responsible for troubleshooting computer, setting up and configuring LAN (local area network)WAN (Wide Area Network).
- Provide assistance for company customer concerning computer problem like connecting to IMI network using their wireless connection.
- Responsible for the installation of windows operating system, Microsoft office application, antivirus and other standardsoftware.
- Supporting all end user to removed virus on their computer using licensed software, sophos, avg, Norton, MacAfee. Analyze computer hardware and provide computer assessment report for all computer need to upgrade and diagnostic report for parts already defective.
- Ensuring every computer joined in domain server.
- Responsible for checking and managing DHCP server, removing Bad IP and IP already not in used.
- Project Base: Integrated Microelectronics, Incorporation
IT Staff
Datatel Business Sales & Services
01.2004 - 02.2006
- Analyzes existing clients' system and deploys an upgrade technical solution.
- Responsible for troubleshooting computer, setting up and configuring LAN (local area network) WAN (Wide Area Network).
- Participates in installing different software applications and computer assembly
- Provide services for the customer like removing computer virus and any computer problem both hardware and software.
- Providing client support by a phone.
- Maintaining local area network cable is organized, terminating new network cable.
- Job Role: IT Staff
Electronic Test Technician
Kyouritsu Electronics Phils, Incorporation
01.2004 - 07.2004
- Provide technical support in maintaining test equipment.
- Analyzing machine error like Tescon in circuit tester (ICT), (WI) withstanding voltage tester (FT) functions tester machine Machine handles Tescon in Circuit Tester, Point 70MB, Point88MB, and Focus 2000.
- Provide support for Production operation.
Computer Technician
Datatel Business Sales & Services
04.2003 - 10.2003
- Assist the customer and serve also as a cashier.
- Maintain server, PC, and peripherals including updating anti-virus, removing viruses, harddisk scan, and fragmenting of hard drive
- Responsible for the installation of windows and Microsoft office, games, antivirus.
- Responsible for the installation of network and cabling.
Education
Bachelor's Degree,Bachelor of Science - Information Technology
AMA Computer University
Calamba Laguna, Philippines04.2003
Skills
- Windows Server (2016–2022), Linux Administration, Active Directory, Group Policy, Azure AD/Entra ID, Microsoft 365 (Exchange Online, Teams, SharePoint, OneDrive), Virtualization (VMware, Hyper-V), Patch Management
- Able to build and configure windows server active directory domain 2003-2008-2012-2016-2019 and Manage Active directory
- Able to Manage User accounts, Create User Accounts, Reset User account password, Create OU and manage OU
- Able to Create Group of user, Create permission for group of user
- Manage Client computer on active directory system
- Create GPO policy for user, specific OU and computer in Active directory Domain Server
- Manage and configure DHCP server and DNS
- Create Access permission for the network printer install and shared In Active Directory
- Knowledgeable in Windows Server Backup using Windows server Features
- Can Backup and Restore Server using Windows Server backup
- VMware Esxi
- Can configure and install VMware esxi Host Server and join this host server into Domain Controller
- Can configure and install V center server into 2008 R2 64 Bit and 2012 64 Bit Standard Edition windows server
- Can Create Data Center inside V center Server 55 using web client and V sphere Client and add Host server
- Can Export and Deploy OVA, OVF files Virtual Machine in Host Server
- Can Manage Virtual Machine inside host server using V sphere Client and Web Client, Migrate and Move Virtual machine to another host or another data storage or both host and data storage
- Can Manage Logical Network Switch Create VLAN on this Logical Switch
- Can Manage Virtual Machine Template, Create and Deploy Template, Clone Virtual Machine
- VMware WorkStation 10
- Can Install other OS using VMware Workstation 10
- Can Create Logical Switch and subnet inside VM Workstation 10
- Create a Simulation of Server inside VMware Workstation 10
- Networking Cisco Devices
- Knowledgeable in configuring Cisco Devices (Router and Switches)
- Computer Hardware and application software Troubleshooting
- Effective in hardware troubleshooting
- Can Install, replace parts and upgrade existing computer hardware
- Can assemble and disassemble a Computer
- Client Handling
- Knows how to support and handle clients in a right and good manner
- Desktop Support
- Knowledgeable in installing different operating systems and applications, can troubleshoot both hardware and software
Certification
- CCENT –Cisco Certified Entry Networking Technician ( Certified) Issued in: February 2015 Valid Until: 2018-02-20 Validate on this Link https://www.cisco.com/go/verifycertificate Verification Code: 420384168422DSWL
- CCNA – Cisco Certified Networking Associate Routing and Switching ( Certified) Issued in: April 15, 2015 Valid Until: 2018-04-15 Validate on this Link https://www.cisco.com/go/verifycertificate Verification Code: 421084171279DKVF
- MS- Microsoft Specialist Certified: Server Virtualization with Windows Server Hyper-V and System Center Validate on this Link http://www.mycertprofile.com/Profile/121655049/90/1579/share
- MCSA-Microsoft Certified Solution Associate ( Certificate) Validate on this Link http://www.mycertprofile.com/Profile/121655049/86/1480/share
- MICROSOFT TRANSCRIPT - validate on this Link https://mcp.microsoft.com/Anonymous//Transcript/Validate (Transcript ID (1169803) - Access Code (Access12345))
- MCP –Microsoft Certified Professional ( Certificate) Issued in: February 25, 2015 -Validate on this link http://www.mycertprofile.com/Profile/121655049/12/1519/share
Timeline
System and Network Administrator
Branders.com
08.2016 - 05.2025
Network/System Administrator
Firqat Al-Yamama Establishment
06.2014 - 06.2016
Remote Desktop Analyst
Accenture Philippines
07.2013 - 06.2014
Migration Engineer
Accenture Philippines
08.2012 - 07.2013
Workstation Support Engineer L1
Accenture Philippines
08.2011 - 08.2012
Field Technical Support Engineer
Strategic Networks Incorporation
02.2008 - 07.2011
Technical Support Engineer/Helpdesk
Toplis Solution/First Data Corporation
02.2006 - 09.2007
IT Staff
Datatel Business Sales & Services
01.2004 - 02.2006
Electronic Test Technician
Kyouritsu Electronics Phils, Incorporation
01.2004 - 07.2004
Computer Technician
Datatel Business Sales & Services
04.2003 - 10.2003
Bachelor's Degree,Bachelor of Science - Information Technology
AMA Computer University