Chetan Sabharwal
Ourimbah,NSW
Summary
Accomplished Network System Administrator with a robust history at MOSAIC Brands Ltd, specializing in IT infrastructure enhancements. Proven expertise in virtualization technologies and a strong commitment to improving system efficiency and security. Recognized for exceptional problem-solving abilities and building effective stakeholder relationships to drive organizational success.
Overview
19
19
years of professional experience
1
1
Certification
Work History
IT System Administrator
MOSAIC Brands Ltd
Rosebery, Australia
09.2024 - Current
- Manage and troubleshoot IT systems, including VMware environments, Windows servers and cloud services like Microsoft 365, Azure, Salesforce Commerce Cloud, Confluence and ManageEngine tools
- Assist in the administration of Infrastructure, including LAN & WAN networks, server and storage hardware systems, backup and disaster recovery solutions, cloud-based systems, and telecommunication systems
- Oversee configuration, maintenance, and troubleshooting of network infrastructure, including Cisco Meraki SD-WAN, Fortinet, and Palo Alto firewalls, and Lenovo, Dell, and HPE network switches
- Manage Palo Alto, Meraki, & FortiGate routers, ensuring reliable connectivity across 1000+ endpoints across ANZ region
- Implement and manage endpoint security solutions (e.g., CrowdStrike, Rapid7)
- Regularly audit user groups and access, and remediate issues identified through penetration tests and third-party SOC reports
- Develop and maintain complex automation scripts using PowerShell to streamline operations
- Lead in managing backup and disaster recovery products, such as Veeam
- Maintain and configure an IP telephony system, ensuring smooth operation
- Handle service desk escalations
- Lead and execute hardware and software changes across store network as required
IT Network Specialist - LAN & WIFI design
ALDI Stores (A Limited Partnership)
Minchinbury, Australia
08.2023 - 09.2024
- Managed the network for 598 ALDI stores, including Meraki switches (MS120 - 48LP), Meraki access points (MR33 and MR 36), and Hanshow / ESL access points
- Designed Wi-Fi networks for warehouses and stores using Ekahau devices
- Conducting failover testing in warehouses, test stores and productions stores
- Configuring Extreme access points and performing troubleshooting using the controller
- Configuring and installing Juniper switches in warehouses
- Managing on-premises and Skyhigh cloud proxy servers, including client / server and reverse proxies
- Managing FortiClient firewalls and implementing policy changes
- Ensure compliance with SLA and timeframe obligations for job tickets and tasks assigned
- Report on job status and completion, including documentation of job completion
- Create and maintain technical procedure documentation
- Maintain effective and efficient time management
- Proactively identify and recommend process and technology improvements
- Assist team members and operational areas when required
- Actively participate in service improvement activities
ICT System Administrator
Mingara Leisure Group
Tumbi Umbi, Australia
06.2022 - 07.2023
- Carries out and manages system administration functions utilizing the Microsoft product set, including but not limited to Windows Operating Environments, Exchange, Active Directory, Microsoft Azure, and Microsoft 365
- Demonstrates extensive technical experience in Microsoft technologies such as Office 365, Azure Active Directory, Exchange, and Windows operating systems, to analyze ICT system issues and contribute to the design and implementation of appropriate solutions
- Liaises with product vendors and clients on hardware, software, and systems to identify and resolve complex infrastructure issues and recommend beneficial changes to the technical infrastructure
- Assists and participates in medium-to-large projects related to infrastructure architecture, design, evaluation, implementation, installation, and upgrades
- Works with the service desk team to triage Level 2/3 incidents
- Supports basic and complex network types for 3,500+ users
- Supports Microsoft 365, Windows Server 2016 and 2019, desktop technologies, and cloud environments
- Migrates users to new desktops and notebooks with attention to detail
- Configures and installs local and network printers, routers, scanners, network switches, and wireless access points
- Identifies opportunities to improve client IT systems, such as rack tidy-ups and system upgrades
- Occasionally works outside of usual business hours to accommodate client support needs
System Engineer L-2
Local Health District, Westmead Hospital
Westmead, Australia
04.2020 - 05.2022
- Provide IT support across multiple sites, both remotely and on-site, to resolve incidents and fulfill requests related to operating systems, software, end-user hardware, including mobile devices and peripherals
- Create and deploy images using SCCM and build regular desktop and laptop configurations with Windows 11
- Proficient in SCCM package deployment to endpoints
- Manage and prioritize workload, maintaining visibility through effective ticket system updates (ServiceNow) and queue management, consistently meeting service level targets
- Install and maintain hardware and computer peripherals
- Demonstrate strong administration skills in email and messaging systems, primarily Exchange 2019 and Microsoft Teams
- Collaborate with vendors and internal support teams to troubleshoot complex incidents
- Provide onsite and remote end-user support via email, phone, and tickets for Level 2 and Level 3 desktop applications support incidents
- Manage request support tickets based on KPIs and SLAs
- Maintain knowledge of Exchange migration from on-premises to the cloud and participate in Office 365 deployment
- Perform operational or project work as required by the End User Services Leader or Service Operations Manager
ICT Desktop Support Engineer L-3
HammondCare, Aged Care and Hospitals
Sydney, Australia
04.2006 - 03.2020
- Assist in troubleshooting, diagnosing, testing, and resolving system problems and issues
- Develop, conduct, and provide technical guidance and training in application software and operational procedures
- Analyze, evaluate, and diagnose technical problems including installation, maintenance, repair, upgrade, and configuration of desktops, software, hardware, printers, internet, email, databases, operating systems, and security systems
- Provide 24/7 IT support to over 5,000 users, including the CEO, CFO, CIO, and Board of Directors, both in Australia and internationally
- Troubleshoot Office 365 applications, including OneDrive, OneNote, and Teams, as well as various applications/software such as CommCare, eMR, Citrix, and WVD
- Develop and maintain effective working relationships with different stakeholders, including the offshore engineering team
- Support and administer Active Directory, including group policies, permissions, and account provisioning
- Support and administer Exchange/Office 365, including managing and provisioning delegate access to mailboxes and distribution lists
- Manage mobile devices through MDM solutions such as Samsung Knox
- Troubleshoot ActiveSync issues with mobile devices, including CommCare and Knox
- Maintain MFD printers and manage FollowMe secure printing access for end users
- Provide technical assistance with data backup and restore
- Log incidents, service requests, and maintain the CI database through the ServiceNow system
- Configure and troubleshoot Cisco IP phones through Cisco Call Manager (CCM)
- Install and configure Meraki WAPs through the Meraki portal
- Set up and troubleshoot Cisco Jabber
Education
Advanced Diploma of Business Management - Business Management
Sydney College of Business and Information Technology
Sydney, NSW06.2011
Master of Information System - Major in Networking
Central Queensland University
Sydney, NSW03.2009
Bachelor of Science - Information Technology
Sikkim Manipal University of Health, Medical & Technology
India06.2005
Skills
- Network System Administration
- Directory Services Management
- Technology Asset Tracking
- System Patch Management
- Knowledge of Operating Systems
- Network monitoring
- Hardware troubleshooting
- Mobile device management
- Help desk management
- ITIL processes
- Server management
- Virtualization technologies
- Backup solutions
- Remote support
- System security
- IT infrastructure
- Software installation
- Data management
Certification
- CCNA, 2000
- ITIL v4, 2022
- Certified ECSE WIFI Design Engineer, 2024
Languages
- English, Full Professional
- Hindi, Full Professional
- Punjabi, Full Professional
Personal Information
Nationality: Australian Citizen
Timeline
IT System Administrator
MOSAIC Brands Ltd
09.2024 - Current
IT Network Specialist - LAN & WIFI design
ALDI Stores (A Limited Partnership)
08.2023 - 09.2024
ICT System Administrator
Mingara Leisure Group
06.2022 - 07.2023
System Engineer L-2
Local Health District, Westmead Hospital
04.2020 - 05.2022
ICT Desktop Support Engineer L-3
HammondCare, Aged Care and Hospitals
04.2006 - 03.2020
- CCNA, 2000
- ITIL v4, 2022
- Certified ECSE WIFI Design Engineer, 2024
Advanced Diploma of Business Management - Business Management
Sydney College of Business and Information Technology
Master of Information System - Major in Networking
Central Queensland University
Bachelor of Science - Information Technology
Sikkim Manipal University of Health, Medical & Technology
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