Callum Anthony Barnard
Summary
IT professional with experience across technical support, systems administration, endpoint management, identity services, and security-focused improvements. proficient in analysis, understanding stakeholder needs, and implementing practical solutions that improve system reliability, security, and performance.
Overview
4
4
years of professional experience
Work History
ICT & Business Systems Support Officer
Barkuma
04.2025 - Current
- Delivered level 2/3 ICT support across hybrid Microsoft environments for multiple offices and independent sites.
- Administered Microsoft 365, Exchange Online, SharePoint, Intune, Entra ID, and Active Directory.
- Configured network infrastructure by setting up switches, VLANs, and validating DHCP/DNS connectivity issues.
- Managed user accounts, permissions, identity management, and cybersecurity controls effectively.
- Led infrastructure implementations during office relocations and ICT improvement projects for operational continuity.
- Developed PowerShell scripts and automation tools to minimize manual effort in administrative tasks.
- Produced technical documentation, SOPs, and knowledge articles to standardize processes.
- Delivered cyber awareness and ICT capability training to staff and participants.
Information Technology Support Officer
Barkuma
12.2023 - 04.2025
- Streamlined device provisioning and supported infrastructure deployments.
- Assisted with ICT project delivery to enhance service performance.
- Created user guides and knowledge documentation to improve user experience.
- Standardised onboarding and offboarding processes for consistency.
- Supported Microsoft 365, Intune, Active Directory, and Azure environments effectively.
- Optimized ITSM workflows and updated knowledge base for enhanced accessibility.
- Increased first-contact resolution through improved documentation and user education.
Trainee Helpdesk Analyst
Avance Clinical
03.2022 - 12.2023
- Supported hybrid cloud and on-premises infrastructure including Intune, Azure AD, and M365.
- Delivered user training and created documentation to boost staff confidence in utilizing technology.
- Collaborated with HR and QA to refine user lifecycle processes.
- Streamlined onboarding and offboarding workflows in collaboration with HR to ensure a smoother transition for new and departing employees.
Education
Certificate IV - Information Technology & Networking
Integrity Business College
01-2023
Certificate III - Early Childhood Education & Care
Madec
Skills
- Microsoft 365 administration
- Active Directory and Azure management
- Intune management
- Network administration
- Infrastructure deployment
- Cybersecurity management
- PowerShell automation
- ITSM process improvement
- Incident resolution
- Asset and device management
- Backup and disaster recovery
- Documentation development
- User training
- Compliance processes
- Vendor management
- Windows Server management
- PowerShell scripting
- Network troubleshooting
- Cybersecurity controls
Professional Development
- CompTIA Network+, in progress
- CompTIA Security+, Planned
- Cisco CCNA, Planned
Timeline
ICT & Business Systems Support Officer
Barkuma
04.2025 - Current
Information Technology Support Officer
Barkuma
12.2023 - 04.2025
Trainee Helpdesk Analyst
Avance Clinical
03.2022 - 12.2023
Certificate IV - Information Technology & Networking
Integrity Business College
Certificate III - Early Childhood Education & Care
Madec