IT Specialist

charter; Mississauga; On-site; CAD 90,000 - 130,000; Full time

Job summary

Charter is seeking an IT Infrastructure Specialist to lead and optimize the organization’s IT infrastructure, security, and cloud services across a Canadian enterprise. You will oversee ITSM, vendor performance, and data protection while collaborating with stakeholders and external providers to ensure reliable, cost-effective technology services.

The role requires 5+ years in enterprise IT infrastructure with strong Microsoft 365, Azure, Entra ID, AD, networking, and cybersecurity expertise,

Qualifications

• Post-secondary education in IT/CS/Cybersecurity or equivalent.
• Minimum five years of experience supporting enterprise IT infrastructure.
• Experience managing outsourced service providers and SLAs.
• Strong hands-on with Microsoft 365, Azure, Entra ID, AD, networking, and cybersecurity.
• Experience with Cisco, Extreme Networks, SD-WAN and modern cloud-based infrastructure environments.
• Strong understanding of cybersecurity best practices and ITSM frameworks.
• Excellent communication, customer service, organizational, and problem-solving skills.
• Proven ability to manage multiple priorities and lead projects.

Responsibilities

• Act as the technical lead for IT infrastructure, networking, cloud services, cybersecurity, and end-user computing.
• Own and improve ITSM processes (Incident, Problem, Change, Configuration).
• Manage third-party service providers ensuring SLA compliance and service performance.
• Lead cybersecurity activities including vulnerability management and incident response.
• Administer Microsoft 365, Entra ID, Active Directory, and Azure environments.
• Maintain and enhance network, cloud, server, endpoint, and data storage infrastructure.
• Provide advanced technical support to users via remote and onsite assistance.
• Ensure data protection through access controls, backups, and disaster recovery.

Skills

Microsoft 365

Azure

Entra ID

Active Directory

Networking

Cybersecurity

ITSM

Education

Post-secondary IT/CS/Cybersecurity

Tools

Cisco

Extreme Networks

SD-WAN

Job description

Charter is an award-winning Canadian IT Solutions and Managed Services Provider founded in 1997. With offices across Canada, Charter delivers innovative IT solutions, managed services, project delivery, consulting, and staff augmentation expertise to organizations nationwide. Our mission is to align people, processes, and technologies to help clients enhance communication, optimize performance, and modernize their operations. Using business architecture methodology and human-centered design, we guide clients through successful digital transformations, uncover new opportunities, and accelerate growth.

The IT Infrastructure Specialist is responsible for the overall health, security, and performance of the organization's IT environment. Serving as the primary technical subject matter expert, this role oversees infrastructure operations, cybersecurity, cloud services, IT service management, vendor performance, end-user support, and technology projects. The position collaborates closely with internal stakeholders and external service providers to ensure reliable, secure, and cost-effective technology services that support organizational objectives.

Key Responsibilities

• Act as the technical lead for IT infrastructure, networking, cloud services, cybersecurity, and end-user computing.
• Own and continuously improve IT Service Management (ITSM) processes, including Incident, Problem, Change, and Configuration Management.
• Manage third-party service providers, ensuring SLA compliance, service performance, and operational excellence through regular operational and service review meetings.
• Lead cybersecurity activities, including vulnerability management, security hardening, incident response, and coordination with the Security Operations Center (SOC).
• Administer Microsoft 365, Entra ID (Azure AD), Active Directory, and Azure cloud environments, including governance and cost management.
• Maintain and enhance network, cloud, server, endpoint, voice, video collaboration, and data storage infrastructure across all locations.
• Provide advanced technical support and deliver exceptional customer service to users through remote and onsite assistance.
• Ensure data protection through appropriate access controls, backup, archiving, business continuity, and disaster recovery practices.

Qualifications

Post-secondary education in Information Technology, Computer Science, Cybersecurity, or a related field, or an equivalent combination of education and experience.

• Minimum five years of experience supporting enterprise IT infrastructure, cloud services, and technology operations.
• Demonstrated experience managing outsourced service providers and service delivery against established SLAs.
• Strong hands-on experience with Microsoft 365, Azure, Entra ID, Active Directory, networking, and cybersecurity technologies.
• Experience with Cisco, Extreme Networks, SD-WAN, and modern cloud-based infrastructure environments is preferred.
• Strong understanding of cybersecurity best practices, vulnerability management, incident response, and ITSM frameworks.
• Excellent communication, customer service, organizational, and problem-solving skills.
• Proven ability to manage multiple priorities, lead projects, and work effectively in a collaborative team environment.
• Self-motivated with a commitment to continuous learning and professional development.