Job Title: Senior Cybersecurity/Network Administrator Company: Taggart Group of Companies Reports to: Chief Technology Officer Salary Range: $110,000
- $135,000

Location:
2515 St. Laurent Boulevard, Ottawa, Ontario / hybrid role Vacancy Status: This is an active job opening. Taggart Group is actively hiring for this position.

About Us
At Taggart, we're more than a company. We are a proud, family-owned business with deep roots in Eastern Ontario. We're leaders in building communities, from infrastructure and commercial spaces to residential homes. Our long-standing stability and continued growth create opportunities to gain hands‑on experience and build a lasting career. The Taggart Group of Companies is a full-service construction organization consisting of five major operating companies. We provide leadership in real estate development, planning, design, finance, construction, and management. At Taggart, you will be part of something bigger, and what you do today will make an impact for years to come. We believe in your success. Building integrity, quality, and community together. About this Role As Senior Cybersecurity/Network Administrator, you lead the day‑to‑day protection of our systems, networks, and information. Your primary focus is cybersecurity operations and secure network administration across our on‑premises and cloud environments. You bring a strong understanding of IT infrastructure and work closely with the infrastructure team to address vulnerabilities, respond to incidents, and maintain reliable services. You provide technical guidance and help the Chief Technology Officer prioritize security improvements across the Taggart Group of Companies.

Key Responsibilities
Security Operations and Incident Response
- Monitor security alerts, investigate threats,



and improve detection capabilities in coordination with managed security providers.
- Lead technical incident response, including containment, recovery, evidence preservation, and stakeholder communication.
- Maintain incident response playbooks, conduct exercises, and implement lessons learned. Network Security and Connectivity
- Administer secure, reliable connectivity across offices and work sites, including firewalls, routing, switching, wireless networks, and VPNs.
- Implement network segmentation and secure remote access, review third‑party connections, and resolve complex network and security issues. Identity, Endpoint and Cloud Security
- Manage identity and access controls, including multifactor authentication, conditional access, privileged accounts, and regular access reviews.
- Secure endpoints, Microsoft 365, and cloud services through effective configuration, encryption, email protection, and monitoring. Vulnerability Management and Infrastructure Resilience
- Coordinate security assessments, prioritize vulnerabilities, and work with infrastructure teams to patch and harden systems, verify remediation, and protect service availability.
- Strengthen backup security and support restoration and ransomware recovery testing across interconnected infrastructure.
- Lead disaster recovery planning and testing, and work with business unit leaders to establish recovery point objectives (RPO), recovery time objectives (RTO),



and maximum acceptable downtime (MAD) for critical systems. Projects and Continuous Improvement
- Lead security and network improvements using tested change and rollback plans; maintain technical documentation and automate routine tasks.
- Support security standards, audits, and vendor risk reviews; report risks and remediation progress to the CTO.
- From time to time, lead technical teams, projects, or vendors, including assigning work, coaching, and managing delivery and performance.
- Support security awareness and phishing exercises, and coach IT colleagues on secure administration. Education and Experience Requirements
- Postsecondary education in cybersecurity, networking, information technology, or a related discipline, or an equivalent combination of training and practical experience.
- At least five years of progressive experience in IT, networking, or infrastructure administration, including at least three years of hands‑on cybersecurity responsibilities.
- At least two years of experience leading or supervising technical teams, projects, or vendors, including assigning work, coaching, and managing delivery and performance.
- Demonstrated experience investigating security incidents and administering firewalls, EDR, SIEM, vulnerability management, and identity security controls.
- Robust knowledge of TCP/IP, subnetting, DNS, DHCP, VLANs, routing, switching, VPNs, network segmentation, and secure remote access. Experience with BGP, SASE, and ZTNA is an asset.
- Working knowledge of Windows Server, Active Directory, Microsoft Entra ID, VMware, storage, backups, and disaster recovery, including how these services depend on one another.
- Experience securing Microsoft 365 and endpoints,

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