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Senior Infrastructure Security Specialist

Toronto, Ontario💼 Full-time🗓 2026-09-03 → 2026-09-26

Core

Protect corporate, cloud, and operational infrastructure for a satellite connectivity company, managing vulnerability management, security monitoring, incident response, and compliance for regulated government environments.

Role type

Senior Infrastructure Security Specialist (IC)

Builds

Secure cloud and on-prem infrastructure, detection use cases, and automated security controls for Kepler's satellite operations and government contracts.

Domain

Space technology / Cybersecurity

Deliverable

production ML models | product features | dashboards & analysis | infrastructure

Required skills

Infrastructure security, vulnerability management, SIEM/EDR/XDR administration, incident response, cloud security (AWS/Azure), network security, system hardening, identity and access management, compliance with NIST/CIS frameworks

Preferred skills

Tenable, Securonix, SentinelOne, MDR/SOC provider experience, Python/PowerShell/Bash scripting, security audits, CISSP/GIAC/CCSP certifications

Technologies

AWS, Microsoft Azure, Tenable, Securonix, SentinelOne, SIEM, EDR/XDR, NIST CSF, NIST SP 800-171, NIST SP 800-53, CIS Controls

Responsibilities

Own infrastructure vulnerability management program and remediation tracking; Administer SIEM, security monitoring, and EDR/XDR capabilities; Investigate security alerts and support incident containment and recovery; Implement technical controls for Government of Canada and regulated environments; Partner with IT and Engineering to incorporate security into infrastructure design and operations

Seniority

Senior, hands-on IC

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