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 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.
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.
