Experienced IT professional with 5+ years of hands-on expertise in systems administration, desktop support, and network troubleshooting. Proven track record in resolving service interruptions swiftly, maintaining system reliability, and managing Microsoft-based environments. Adept at simplifying complex technical concepts for diverse audiences while delivering excellent client experiences. Strong background in Active Directory, Microsoft 365, and hardware/software management in fast-paced environments.
Hi, I’m
David Geofrey
Mississauga,Canada
Summary
Overview
8
years of professional experience
1
Certification
Work History
Kronis, Rotsztain, Margles, Cappel LLP (KRMC)
Jr. System Administrator
07.2024 - Current
Job overview
- Track, monitor, and resolve Help Desk tickets with 95% first-call resolution rate
- Configure and maintain network devices including routers, switches, and access points
- Administer Microsoft Azure services, including Azure Active Directory for user identity and access control
- Manage and enforce Group Policy for system security and standardization
- Perform hardware maintenance and coordinate with vendors for repairs
- Lead user account lifecycle management across on-premises and Azure environments
- Image and configure desktops/laptops with proper GPO policies and security settings
- Support software implementation and document technical resolutions for knowledge base
- Monitor and maintain antivirus systems and Windows update deployments
- Optimize network performance through regular monitoring and troubleshooting
Lassonde Beverages Canada
Technical Support Representative
02.2022 - 06.2024
Job overview
- Provided first-level support for hardware, software, and network issues with minimal downtime
- Troubleshot and resolved technical problems related to production systems and IT infrastructure
- Created and managed user accounts in Active Directory, configuring appropriate access permissions
- Performed routine system maintenance including updates and patch management
- Configured and set up desktop systems, including OS installation and software deployment
- Maintained detailed records of issues and resolutions using ticketing systems
- Monitored system performance metrics to ensure optimal operation
- Trained staff on basic IT procedures and proper system usage
Mobile Telephone Networks LTD
IT Help Desk Associate
02.2017 - 12.2021
Job overview
- Provided technical support for over 50 daily inquiries related to services and network issues
- Logged, categorized, and prioritized customer issues in service management system
- Maintained strict adherence to service level agreements (SLAs) for response times
- Coordinated with technical teams to resolve complex issues and prevent recurrences
- Documented customer interactions and solutions for knowledge base development
Education
Seneca CollegeToronto, ON
Computer Systems Technician (HONOURS)
04.2024
University Overview
Skills
- Active Directory
- Azure AD
- Windows Server
- DNS
- DHCP
- Group Policy
- Windows 7 - 11
- Microsoft Office 2013 - 2021
- Office 365
- Microsoft SQL Server
- Microsoft Hyper-V
- VMware
- VirtualBox
- Citrix
- LAN/WAN
- TCP/IP
- VPN
- Remote Access
- Firewall management
- Data encryption
- MFA systems
- Anti-malware
- PowerShell
- SQL
- Python
- Bash
- Servers
- Desktops
- Laptops
- Printers
- Veeam Backup
- Network troubleshooting
- Firewall configuration
- Patch management
- System monitoring
Certification
- Microsoft Endpoint Administrator Associate, 06/01/24 - Present
- CompTIA A+, 06/01/24 - Present
- Cisco Certified CyberOps Associate, 01/01/25 - Present
- Technical Support Fundamentals, 04/01/24 - Present
Languages
Fluent in English
English
Full Professional
Communication Skills
Communication Skills
Excellent communication and multitasking skillsCommitment
Commitment
Commitment to continuous learning and IT support service excellence
Valid Drivers License
Valid Drivers License
TrueTimeline
Jr. System Administrator
Kronis, Rotsztain, Margles, Cappel LLP (KRMC)
07.2024 - Current
Technical Support Representative
Lassonde Beverages Canada
02.2022 - 06.2024
IT Help Desk Associate
Mobile Telephone Networks LTD
02.2017 - 12.2021
Seneca College
Computer Systems Technician (HONOURS)
Similar Profiles
Hasini LiyanaHasini Liyana
Legal Billing Clerk at Kronis, Rotsztain, Margles, Cappel LLP (KRMC)Legal Billing Clerk at Kronis, Rotsztain, Margles, Cappel LLP (KRMC)
Elva NelsonElva Nelson
Lna at KrmcLna at Krmc
Maryellen WoodsMaryellen Woods
Volunteer Joan and Diana Hospice House at KRMCVolunteer Joan and Diana Hospice House at KRMC
Randeep KaurRandeep Kaur
Personal Support Worker at Caressent HomePersonal Support Worker at Caressent Home
Ali JarwanAli Jarwan
Tile Setter at Carlo Inc.Tile Setter at Carlo Inc.