Senior Security Engineer at Chainguard shaping how open source defends itself. Collaborate with teams to enhance security posture and compliance with industry standards.
About the role
- Seeking Senior IT Security Technical Support Specialists for DND environments in Ottawa, providing troubleshooting and implementation of complex security requirements.
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
- Planning or participating in department‑wide system upgrades
Requirements
- Certificate, diploma, or degree in Computer Science or a related field from a recognized Canadian post‑secondary institution.
- Minimum 24 months of relevant experience performing duties aligned to the Senior Technical Support Specialist category.
- Implementing or supporting complex security controls (IAM, MFA, RBAC, encryption, hardening baselines)
- Troubleshooting and resolving security‑related incidents, authentication failures, or access issues
- Supporting secure network, server, and application environments
- Participating in security‑driven upgrades, patch cycles, and configuration deployments
- Working with security vendors, internal security teams, or DND security stakeholders
- Maintaining security logs, audit trails, and incident documentation
- Providing security‑focused user training (secure access, MFA onboarding, cyber hygiene)
- Reproducing or validating security‑related technical problems
- Supporting vulnerability assessments, remediation activities, or compliance checks
- 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
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