Senior Cybersecurity/Network Administrator

Taggart Group; Ottawa; Hybrid; CAD 110,000 - 135,000; Full time

Job summary

Taggart Group of Companies is seeking a Senior Cybersecurity/Network Administrator in Ottawa, Ontario. The role combines cybersecurity operations, secure network administration, and cloud security across on‑premises and cloud environments.

You will work with the CTO to prioritize security improvements and guide the infrastructure team. Responsibilities include monitoring security alerts, incident response, network security, identity & access, and disaster recovery planning.

Qualifications

• Postsecondary education in cybersecurity, networking, information technology, or related discipline.
• At least five years of progressive IT/infrastructure experience with at least three years in cybersecurity.
• Two years of experience leading or supervising technical teams, projects, or vendors.
• Experience investigating security incidents and administering firewalls, EDR, SIEM, vulnerability management, and identity security controls.
• Strong knowledge of TCP/IP, DNS, DHCP, VLANs, routing, switching, VPNs, network segmentation, and secure remote access.

Responsibilities

• Lead security operations and incident response, including containment, recovery, and communications.
• Administer secure connectivity across offices, firewalls, routing, switching, VPNs, and wireless networks.
• Manage identity and access, MFA, conditional access, privileged accounts, and access reviews.
• Secure endpoints, Microsoft 365, and cloud services through configuration and monitoring.
• Coordinate vulnerability management, patching, and disaster recovery planning and testing.
• Lead security improvements and document changes; mentor IT colleagues.

Skills

Cybersecurity experience

Network administration

Leadership

Scripting/automation

Cloud security

Education

Postsecondary education in cybersecurity

Tools

Windows Server

Active Directory

Microsoft Entra ID

VMware

Azure/AWS security

Job description

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.


• Strong 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, with a working understanding of Azure or AWS security and the shared responsibility model.


• Ability to assess risk, prioritize remediation, and apply structured troubleshooting while balancing security requirements with operational needs.


• Ability to script or automate administrative tasks and maintain clear technical documentation. Experience using artificial intelligence responsibly in IT operations is an asset.


• Clear communication with technical teams, business users, vendors, and management. Ability to work independently, mentor colleagues, and handle sensitive information with discretion.

Professional Certifications

One or more of the following certifications are preferred. Demonstrated practical experience and equivalent qualifications will also be considered.

Ideal

• Cisco Certified Network Professional (CCNP) Security


• ISC² Certified Information Systems Security Professional (CISSP)


• ISC² Systems Security Certified Practitioner (SSCP)


• Relevant firewall or network security certification from Fortinet or Palo Alto Networks

The following certifications are assets but are not essential to the role. Equivalent experience in these domains will also be considered.

Assets

• Relevant Microsoft, Azure, or AWS certification in security, identity, cloud administration, or networking


• Relevant HPE Aruba Networking certification

Physical/Sensory Effort and Work Environment

• Work four days per week in the Ottawa office and one day remotely.


• Travel between work locations as required.


• Work regular weekday hours, with occasional evening or weekend maintenance, security incident response, and participation in an on‑call rotation.


• Manage competing priorities while supporting multiple teams, departments, and companies.

Accommodation Requests

The Taggart Group of Companies is an equal opportunity employer. All qualified applicants are considered without regard to citizenship, race, place of origin, ethnic origin, colour, ancestry, disability, age, creed, sex/pregnancy, family status, marital status, sexual orientation, gender identity, or gender expression.

In accordance with the Accessibility for Ontarians with Disabilities Act, we're committed to providing accommodations for people with disabilities in all aspects of the recruitment and selection process. If you require accommodation or special assistance, please email [e-mail] with your request.

Salary Range

The salary range shown reflects expected total annual compensation, including base pay, bonuses, and/or commissions.

Thank You for Considering Taggart Group of Companies

Thank you for your interest in joining Taggart Group of Companies. We appreciate every application, but only those selected for an interview will be contacted. We do not accept unsolicited resumes from recruiters or employment agencies. Any such submissions become the property of Taggart Group of Companies and are not eligible for compensation. Artificial intelligence may be used to screen and assess candidates.

As a condition of employment, successful candidates will be required to provide satisfactory proof of their legal authorization to work in Canada and to maintain such authorization throughout their employment.