Summary
Overview
Work History
Education
Skills
Certification
Languages
Timeline
Generic

Carlton Mullings

Scarborough

Summary

Results-oriented IT Systems and Network Administrator with over 5 years of experience in designing, deploying, and supporting enterprise IT environments. Demonstrated success in managing virtualized environments, implementing security measures, and leading IT projects to successful completion. Skilled in managing virtualized and cloud-based infrastructures, automating IT processes with scripting, and implementing robust security measures. Proven ability to optimize system performance, lead complex migrations, and collaborate across teams to achieve business goals. Certified in Azure Administrator (AZ-104), Endpoint Administrator Associate (MD-102), CompTIA Security+, and Fortinet NSE4, with a commitment to continuous professional growth.

Overview

10
10
years of professional experience
4
4
Certification

Work History

Network Administrator

Granite Club
05.2022 - Current
  • Reduced network downtime by 15% through proactive monitoring and maintenance of network hardware and software.
  • Successfully administered and optimized VMware vSphere 6.7 and 7.0 ESX environments, resulting in a 20% increase in resource utilization efficiency.
  • Managed user accounts, resources, and licenses within Microsoft Azure, enabling a scalable and secure cloud infrastructure.
  • Configured and maintained Microsoft Active Directory, including policy implementation, user logon scripts, and user administration for streamlined access control.
  • Managed Microsoft Intune/GPO for Windows and Mac, streamlining device provisioning and policy enforcement.
  • Collaborated with governance teams to remediate vulnerabilities using Qualys reports, enhancing endpoint security.
  • Administered Google Workspace, encompassing user creation, policy enforcement, and device management to ensure a seamless collaborative environment.
  • Designed, configured, and maintained network hardware topology, including wiring, switches, Forti-AP and Aruba access points (APs), and FortiGate firewalls, ensuring optimal network performance and security.
  • Managed IP addressing, routing protocols, and VLANs to create a secure and segmented network environment.
  • Managed Windows Server environments (2012 R2 - 2022), performing troubleshooting tasks and maintaining 50+ virtual servers.
  • Utilized PowerShell scripting for automation tasks, enhancing efficiency and streamlining IT processes.
  • Implemented and maintained a robust network and wireless environment.
  • Managed backup systems, including system imaging, recovery testing, and cloud backups leveraging HPE SimpliVity, Nakivo, and Microsoft Azure for comprehensive disaster recovery capabilities.
  • Administered the Avaya IP Office phone system, ensuring smooth communication for internal and external calls.

Freelancer - Multi-Platform Technical Support

Bell Media
06.2022 - 12.2023
  • Resolved escalated L2 tickets with a 95% SLA compliance rate, ensuring timely service delivery.
  • Monitored and supported live streams and VOD for Bell Media brands, ensuring uninterrupted performance.
  • Documented and communicated known issues to stakeholders, improving transparency and user satisfaction.
  • Managed multiple projects simultaneously while maintaining a high level of attention to detail and organization.
  • Conducted usability testing for client websites, identifying and resolving issues to enhance overall user satisfaction.

Network & System Administrator

System Architects Inc. (MSP)
06.2021 - 05.2022
  • Migrated on-premises environments to Office 365 and virtualized platforms (VMware, Hyper-V), improving scalability.
  • Led technical infrastructure projects, including server builds, SQL database migrations, and Active Directory enhancements.
  • Analyzed vulnerability scans and implemented remediation strategies aligned with IT security policies.
  • Monitored network performance, identifying and resolving issues to maintain optimal functionality.
  • Trained junior staff on best practices in system management and troubleshooting techniques.
  • Simplified troubleshooting processes by creating detailed documentation for system configurations, procedures, and best practices.
  • Ensured high availability of critical systems by setting up and monitoring failover mechanisms and redundancy protocols.

NOC & Helpdesk Specialist

Mission Control NOC and Helpdesk (MSP)
10.2019 - 06.2021
  • Provided technical support to clients by diagnosing software, networking, and hardware issues through on-site meetings and by responding to technical alerts on client servers and network appliances.
  • Maintained optimal system and network performance by troubleshooting and resolving a wide range of IT support requests from end-users, network devices, and servers.
  • Demonstrated proficiency in managing Windows Server environments (2003-2019), including virtualization with MS Hyper-V and VMWare Esxi, and desktops with Windows OS.
  • Conducted patch management and optimized backup strategies using Acronis, Datto, and Veeam.
  • Onboard new clients to Office 365 by provisioning user accounts and setting up tenant configurations.
  • Manage multiple Office 365 tenant subscriptions and ensure proper licensing for each client.
  • Create, manage, and modify user accounts and security groups within each client's Office 365 environment.
  • Assign appropriate permissions and access controls to users and groups.
  • Configure security settings for each client's Office 365 environment to prevent data breaches and unauthorized access.
  • Implement data loss prevention (DLP) policies and ensure compliance with relevant regulations.
  • Manage and configure various Office 365 applications (e.g., Exchange Online, SharePoint Online, OneDrive for Business, Teams) to meet client needs.
  • Maintained and built VMs and containers through Azure and Azure Kubernetes Services.

System Administrator

Brandram-Henderson (W.I.) Ltd.
12.2016 - 07.2019
  • Implemented enterprise-grade backup and recovery strategies for a multi-site organization spanning five countries using Veeam Backup Solution.
  • Managed Active Directory, Fortinet firewalls, and Microsoft 365 environments, ensuring seamless operations.
  • Improved cybersecurity posture by deploying Sentinel One and advanced threat protection solutions.
  • Ensured seamless connectivity by configuring routers, switches, firewalls, and other networking equipment according to best practices.
  • Developed comprehensive documentation of network architecture, procedures, and troubleshooting guides for easy reference by the IT team.
  • Contributed to budget planning processes by providing accurate cost estimates for network infrastructure upgrades or expansion projects.

Education

Advanced Diploma - Computer System Technology – Networking

Centennial College
Toronto, ON
04.2021

Bachelor of Science - Computer & Information Technology

University of Technology
Jamaica
01.2011

Skills

  • Endpoint Management (Microsoft Intune, Mobile Device Management for Android, iOS, and Windows)
  • Security & Compliance (Qualys, FortiGate firewalls, PKI certificate management)
  • Infrastructure Administration (Windows Server, DHCP, RADIUS, DNS, Print Server)
  • Process Improvement (Automation with PowerShell scripting, Manage Engine for application deployment and patch management)
  • Collaboration Tools (Office 365)
  • Network Management and Troubleshooting (WAN, SD-WAN, VLANs, VPNs, VoIP telephone systems)
  • ITIL processes
  • Virtual desktop infrastructure
  • Project management
  • Adaptability and flexibility

Certification

  • Fortinet NSE4
  • CompTIA Security+
  • Azure Administrator (AZ-104)
  • Endpoint Administrator Associate (MD-102)

Languages

English
Native or Bilingual

Timeline

Freelancer - Multi-Platform Technical Support

Bell Media
06.2022 - 12.2023

Network Administrator

Granite Club
05.2022 - Current

Network & System Administrator

System Architects Inc. (MSP)
06.2021 - 05.2022

NOC & Helpdesk Specialist

Mission Control NOC and Helpdesk (MSP)
10.2019 - 06.2021

System Administrator

Brandram-Henderson (W.I.) Ltd.
12.2016 - 07.2019

Advanced Diploma - Computer System Technology – Networking

Centennial College

Bachelor of Science - Computer & Information Technology

University of Technology

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Carlton Mullings