John Du Email & Phone Number

Richmond Hill, Ontario, Canada

Responsible to Implement, maintain and support the infrastructure and technology platforms for the City that are secure, reliable, scalable and implemented in accordance with industry best practices. Provide assistance to members of the Information Technology (IT) team along with administering technology infrastructure solutions in accordance with industry accepted best practices. Coordinate with project teams to provide technical guidance to project managers, system designers… Show more Responsible to Implement, maintain and support the infrastructure and technology platforms for the City that are secure, reliable, scalable and implemented in accordance with industry best practices. Provide assistance to members of the Information Technology (IT) team along with administering technology infrastructure solutions in accordance with industry accepted best practices. Coordinate with project teams to provide technical guidance to project managers, system designers, applications developers and testers throughout the development process,Implement and maintain system security and apply any required security patches as required.Provide Technical support for IT infrastructure issues, troubleshoot operational problems and perform maintenance as required. Show less

Toronto, Ontario, Canada

• Work as IT system Analyst/Engineer to supporting all Corporates's Base Building Network (BBN) IT infrastructure across Canada, US and Europe for Dream unlimited Real Estate Investment Trust (REIT) Group companies, including Dream Office REIT, Dream Industrial REIT company’s IT infrastructure.• Implement Dream group’s IT infrastructure deployments, replacements, upgrades and other applicable projects end-to-end. Manage and operate Dream’s data Centre, including network, server, storage… Show more • Work as IT system Analyst/Engineer to supporting all Corporates's Base Building Network (BBN) IT infrastructure across Canada, US and Europe for Dream unlimited Real Estate Investment Trust (REIT) Group companies, including Dream Office REIT, Dream Industrial REIT company’s IT infrastructure.• Implement Dream group’s IT infrastructure deployments, replacements, upgrades and other applicable projects end-to-end. Manage and operate Dream’s data Centre, including network, server, storage, virtualization, and backup infrastructure.• Manage Incident Response for Infrastructure related events and drive resolution leveraging several teams, and vendors. Responsible for supporting and resolving the IT Technic ticket. • Implement and maintain Base Building Networks (BBN) to support IOT systems. Plan and deploy new infrastructure projects in the cloud and on premises, including BBN hardware and application Installations and upgrades. Performing application installations, configurations, and maintenance on Windows / Linux Server for 30+ office Buildings located in GTA around in Ontario, Canada. • Protect the data, software and hardware by coordinating, planning and implementing network security measures in close partnership with the Cyber Security Team and enforcing data security, premises integrity and access procedures as per corporate security policy.• Participate in on-going research, designing, implementing, and supporting Server & Client technologies, like MS office 365 application, which enable the organization to work effectively and productively.• Manage 3rd party consultants in implementation and support of Dream’s networks. Provide tier 3 technical support to group’s clients and assist and support local Level 2 Techs out of Ontario and in USA. Collaborate with cross-functional team members and leaders to develop and prioritize milestones based on team and company objectives. Represent the Team in technical,supporting internal and external audits as required. Show less

Markham, Ontario, Canada

• Worked as Sr IT System Administrator/Engineer to provide IT system technology support for >80 SMB Customers.• Established and maintained customer’s IT infrastructure and assets, including laptop and desktop computers, server, network routers, switches, security gateway and firewalls, printers, phones. Support customer’s Internet, intranet, LANs, WANs, VPNs and network segments.• Provided architecture and design service to build customer's IT infrastructure. Setup and… Show more • Worked as Sr IT System Administrator/Engineer to provide IT system technology support for >80 SMB Customers.• Established and maintained customer’s IT infrastructure and assets, including laptop and desktop computers, server, network routers, switches, security gateway and firewalls, printers, phones. Support customer’s Internet, intranet, LANs, WANs, VPNs and network segments.• Provided architecture and design service to build customer's IT infrastructure. Setup and maintained the IT infra system including servers, workstation, remote access communications in their office/datacenter located in Newmarket Ontario and other remote datacenters in German, Turkey offices.• Implemented VMware virtualization infrastructure systems with VMware ESXi Cluster, P2V migration, etc.• Implemented services combining manufacturing and office business IT systems with the latest technologies based on Windows Server 2019/2016, Active Directory, Laptop/desktop with MS Office 365 App.• Deployed Dell SAN and NAS storage systems as the storage foundations. Secured the IT system with network Firewall and Domain Group Policy• Deployed and supported Client's software applications with vendors. Wrote detailed documentations about system configurations and information, provide 7 x 24 x 365 on Call support and traveling as required Show less

Toronto, Ontario, Canada

• Sr IT Infrastructure System Analyst for Canada Post / Purolator's IT infrastructure system. Analyzed the needs and processes into the Information Technology solutions and IT development strategy plan for the rapid company growth and success • Managed and supported Multiple Data Center of Production, Development/QA and Disaster Recovery datacenter sites, including designed and implemented IT network/server environment…. • Built up and Migrate Disaster Recovery Datacenter… Show more • Sr IT Infrastructure System Analyst for Canada Post / Purolator's IT infrastructure system. Analyzed the needs and processes into the Information Technology solutions and IT development strategy plan for the rapid company growth and success • Managed and supported Multiple Data Center of Production, Development/QA and Disaster Recovery datacenter sites, including designed and implemented IT network/server environment…. • Built up and Migrate Disaster Recovery Datacenter from Production Site co-located in Telus Data center, into Sungard Data center. Worked in all the Data Center Migration processes, including: Migration planning, validation, Migration deployment and final verification…. • Built Datacenter IT infrastructure based on Windows and Linux server platforms, IBM X Series ，Dell PowerEdge servers, Dell EMC SAN Storage, Dell network switches and VMware virtualization technologies, etc.• Established and maintained internal infrastructure and assets, including laptop and desktop computers, server, network routers, switches, security gateway and firewalls, printers, phones, security update, support internet, intranet, LANs, WANs, VPNs and network segments.• Enforced the systems security with multi-layered security mechanisms including firewalls, 3-tier architecture, Intrusion Detection and antivirus software and Domain Group Policies• Monitored the hardware, software and applications using tools including Dell Open Manager, Automated System Operation, monitored and maintained tasks using scripting and utilities Show less

Postgraduate Degree, Computer And Information Sciences And Support Services

Bachelor'S Degree, Computer And Information Sciences And Support Services