Senior IT Security Computer Support Specialist

Senior IT Security Computer Support Specialist

Location: Ottawa, ON

Client: Department of National Defence (DND)

Clearance: Secret (minimum), Top Secret preferred

About the Role

We are seeking twoSenior IT Security Technical Support Specialiststo support DND environments. These resources will provide advanced technical troubleshooting, secure system support, and implementation of complex security requirements across enterprise networks and applications.

General Responsibilities:

• Coordinating emerging technology application specifications
• Serving as a user support liaison between vendors, IT technicians, and end‑user departments
• Providing training expertise and direction in emerging technology or special application support
• Emulating or reproducing technical problems encountered by users
• Providing advice and training to users in response to identified difficulties
• Recommending and implementing complex security requirements
• Providing business systems, network, and Internet support to users
• Collecting, organizing, and maintaining a problems/solutions log
• Verifying accuracy and completeness of work performed
• Designing, configuring, and deploying server‑based file systems and applications
• Identifying, researching, and resolving complex technical problems
• Recommending new products or processes to enhance business activities

1. Planning or participating in department‑wide system upgrades

ESSENTIAL REQUIREMENTS

All candidatesmust meet the following mandatory criteria:

Education

• Certificate, diploma, or degree inComputer Science or a related field from arecognized Canadian post‑secondary institution.

Experience

• Minimum 24 months of relevant experience performing duties aligned to the Senior Technical Support Specialist category.

ADDITIONAL SECURITY‑FOCUSED REQUIREMENTS

Candidates must also demonstrate experience insecurity‑specific technical support, including:

• Implementing or supportingcomplex security controls (IAM, MFA, RBAC, encryption, hardening baselines)
• Troubleshooting and resolvingsecurity‑related incidents, authentication failures, or access issues
• Supportingsecure network, server, and application environments
• Participating insecurity‑driven upgrades, patch cycles, and configuration deployments
• Working withsecurity vendors, internal security teams, or DND security stakeholders
• Maintainingsecurity logs, audit trails, and incident documentation
• Providingsecurity‑focused user training (secure access, MFA onboarding, cyber hygiene)
• Reproducing or validatingsecurity‑related technical problems
• Supporting vulnerability assessments, remediation activities, or compliance checks

Ideal Candidate Profile

• Strong understanding of defence‑sector security requirements
• Experience supporting classified or secure environments
• Excellent communication skills with both technical and non‑technical users
• Ability to work independently in high‑security, high‑availability environments