KRISMAN KIRUPAIRAJAN
Scarborough,Canada
Summary
IT Support and System Administrator with extensive experience in delivering technical support and system administration for enterprise environments. Expertise includes managing user access, system performance, and compliance while ensuring security and reliability across desktop, server, and network infrastructures.
Overview
15
15
years of professional experience
1
1
Certification
Work History
Senior Systems Analyst
TD Canada Trust
Mississauga, Canada
12.2025 - Current
- Provide technical support and troubleshooting for enterprise applications and infrastructure.
- Manage user access, permissions, and identity systems (AD, Entra ID, VPN, MFA).
- Monitor system performance, backups, and ensure system availability and security compliance.
- Perform incident management, root cause analysis, and issue resolution within SLA.
- Support system upgrades, patching, and environment configuration.
- Maintain accurate documentation of incidents, solutions, and system changes.
- Collaborate with internal teams and vendors to resolve technical issues.
Senior Systems Analyst
University Health Network (UHN)
Toronto, Canada
01.2020 - 11.2025
- Delivered L2/L3 technical support for 600+ users, including desktops, laptops, printers, and mobile devices.
- Installed, configured, and maintained hardware, operating systems, and enterprise applications.
- Administered Active Directory, including user account creation, access rights, and group policies.
- Performed patching, updates, and vulnerability remediation for servers and endpoints.
- Monitored backup systems and ensured successful data recovery processes.
- Troubleshot network, system, and application issues across Windows environments.
- Supported business continuity and disaster recovery testing activities.
- Maintained IT asset inventory and documentation.
IT Team Lead / Infrastructure Support
Wolverine Worldwide Canada
Mississauga, Canada
01.2014 - 12.2019
- Provided end-user support for desktops, printers, and network devices across multiple locations.
- Performed SCCM imaging, OS deployment, and new user setup.
- Installed and supported enterprise applications and communication tools.
- Managed network infrastructure, servers, and backup systems.
- Coordinated with vendors for hardware repairs and technical support.
- Troubleshot network connectivity, hardware failures, and system issues.
- Supported security systems including cameras and access control systems.
IT Support Analyst
Aviva Canada Inc.
, Canada
01.2011 - 11.2013
- Provided first-level technical support for hardware, software, and network issues.
- Diagnosed and resolved issues related to desktops, laptops, and connectivity.
- Installed and configured systems, applications, and network setups.
- Managed service desk tickets, documentation, and issue tracking.
- Assisted with user onboarding, system access, and IT support requests.
Education
Bachelor’s Degree - Computer System Engineering
Centennial College
Diploma - Computer System Technician
Diploma - Hardware Engineering
Skills
- Technical Support (L1/L2/L3)
- Hardware & Software Troubleshooting
- Windows Server & Windows 10/11
- Active Directory & Access Management
- SCCM Imaging & Patch Management
- VMware vSphere (Virtualization)
- Network Support (LAN/WAN, VPN, VoIP)
- Backup & Disaster Recovery
- System Monitoring & Maintenance
- Ticketing Systems (ServiceNow, Jira)
- Asset & Inventory Management
- Vendor Coordination
Technical Environment
Windows Server, Windows 10/11, macOS, Active Directory, DNS, DHCP, Exchange, IIS, VMware vSphere, SCCM, ServiceNow, Jira, Microsoft 365, Cisco, LAN/WAN, VPN, VoIP, AWS (basic support – EC2, S3, IAM)
Certification
- AWS Certified Cloud Practitioner
- CCNA – Routing and Switching
- CompTIA A+
Timeline
Senior Systems Analyst
TD Canada Trust
12.2025 - Current
Senior Systems Analyst
University Health Network (UHN)
01.2020 - 11.2025
IT Team Lead / Infrastructure Support
Wolverine Worldwide Canada
01.2014 - 12.2019
IT Support Analyst
Aviva Canada Inc.
01.2011 - 11.2013
Bachelor’s Degree - Computer System Engineering
Centennial College