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Job Post Details

IT Infrastructure & Security Specialist - job post

Frontier Dental Supply
3.7 out of 5 stars
Markham, ON•Hybrid work
$80,000–$100,000 a year - Permanent, Full-time
You must create an Indeed account before continuing to the company website to apply

Job details

Pay

  • $80,000–$100,000 a year

Job type

  • Permanent
  • Full-time

Location

Markham, ON•Hybrid work

Benefits

Pulled from the full job description

  • Paid time off
  • Vision care
  • Dental care
  • Casual dress
  • Work from home
  • Company events
  • On-site parking

Full job description

Role Overview

We are seeking an IT Infrastructure & Security Specialist to join our IT Operations team. This role combines cloud infrastructure management, cybersecurity operations, networking, and L1/L2 technical support.

The ideal candidate has strong experience managing Microsoft 365, Azure, AWS infrastructure, networking, and enterprise systems, while also supporting internal users and maintaining secure, reliable IT operations in a fast-growing organization. The role also plays an important part in maintaining Frontier’s security posture, including security tooling, monitoring, and internal security awareness initiatives.

Key Responsibilities

Infrastructure & Cloud Operations

  • Administer and maintain Microsoft 365 services including Entra ID (Azure AD), Exchange Online, SharePoint, endpoint management, and security configurations.
  • Support and maintain Azure and AWS cloud infrastructure, including virtual networks, access controls, system monitoring, and connectivity.
  • Manage VPN connectivity, networking infrastructure, firewalls, and virtual networks to ensure secure and reliable connectivity across systems and users.
  • Maintain and support SFTP servers and secure file transfer processes used for business integrations.
  • Assist with maintenance, monitoring, and troubleshooting of SQL databases supporting internal applications and integrations.
  • Administer and support VoIP and cloud telephony platforms (such as RingCentral), including user provisioning, call routing, integrations, and troubleshooting.

Cybersecurity

  • Administer and monitor Microsoft Defender and other enterprise security platforms used for endpoint, identity, and email protection.
  • Investigate security alerts, assist with incident response, and support vulnerability remediation and access management practices including MFA enforcement.
  • Help maintain Frontier’s overall security posture through monitoring, policy enforcement, and collaboration with leadership on security initiatives.
  • Lead internal security awareness initiatives, including employee security training programs and simulated phishing campaigns.
  • Coordinate with external security vendors to conduct periodic penetration testing and vulnerability assessments, including managing testing scope, scheduling, remediation tracking, and follow-up verification.

IT Support & Business Systems

  • Provide L1–L2 technical support for employees across the organization, troubleshooting issues related to Microsoft 365, ERP, networking, and SaaS platforms.
  • Manage user provisioning, permissions, device setup, and access controls across enterprise systems.
  • Collaborate with internal teams to resolve system issues, improve reliability, and document processes and solutions.

Required Qualifications

  • 5–7+ years of experience in IT infrastructure, systems administration, or similar roles.
  • Hands-on experience administering Microsoft 365 environments, including identity and security management.
  • Experience managing Azure and AWS cloud infrastructure.
  • Strong knowledge of networking, VPNs, firewalls, and virtual networks.
  • Experience supporting IT Helpdesk / L1-L2 support in a business environment.
  • Experience maintaining SFTP servers and secure file transfer processes.
  • Experience with SQL database maintenance, backups, and troubleshooting.
  • Experience supporting ERP systems (preferably Acumatica) and other SaaS business applications.
  • Experience administering Microsoft Defender or comparable enterprise security platforms.

Nice to Have

  • Experience with PowerShell or scripting for automation
  • Experience working in e-commerce environments
  • Experience supporting or maintaining infrastructure for chatbots, AI tools, or conversational platforms
  • Experience supporting or maintaining data warehouse infrastructure and data pipelines

Job Types: Full-time, Permanent

Pay: $80,000.00-$100,000.00 per year

Benefits:

  • Casual dress
  • Company events
  • Dental care
  • On-site parking
  • Paid time off
  • Vision care
  • Work from home

Work Location: Hybrid remote in Markham, ON

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