Information Security)

Parkland Corporation•Calgary, AB

11d

About The Position

Sunoco LP is seeking a well-rounded Systems Administrator with a strong foundation in Windows systems administration, general Systems Operations, and information security best practices. This role is responsible for maintaining reliable, secure, and scalable IT systems across on-premises and/or cloud environments. The ideal candidate is comfortable wearing multiple hats, troubleshooting complex issues, and partnering with security teams to protect enterprise infrastructure.

Requirements

5+ years of experience in systems administration or sysops roles
Strong experience with Windows Server and Active Directory environments
Working knowledge of information security principles (hardening, access control, patching, incident response)
Familiarity with monitoring, patch management, EDR, and other endpoint management tools
Ability to troubleshoot complex issues across systems, networking, and security layers
Strong analytical and problem-solving skills
Ability to prioritize and manage multiple tasks in a production environment
Clear written and verbal communication
Comfortable working independently and as part of a team
Candidates must be legally eligible to work in the country in which they applied.

Nice To Haves

Experience with PowerShell scripting and automation
Knowledge of networking fundamentals (TCP/IP, firewalls, VPNs)
Experience supporting compliance or security frameworks (e.g. PCI-DSS, NIST, ISO 270001, SOC 2)
Prior experience partnering closely with InfoSec or Security Operations teams

Responsibilities

Administer, maintain, and support Windows Server environments (AD, DNS, DHCP, Group Policy, file/print services)
Manage day-to-day system operations, including patching, monitoring, backups, and performance tuning
Deploy and maintain standard operating system builds and system configurations
Assist with infrastructure upgrades, migrations, and lifecycle management
Provide Tier 2/3 escalation support for client, server, and infrastructure issues
Apply security hardening and baseline configurations aligned with best practices
Manage identity and access controls (AD, RBAC, least-privilege access)
Assist with vulnerability remediation, patch management, EDR management, and audit readiness
Monitor systems for security events and participate in incident response
Collaborate with InfoSec stakeholders to enforce policies and compliance requirements
Use scripting and automation to improve reliability and efficiency
Maintain documentation for systems, standards, and procedures
Identify operational risks and recommend improvements to availability, security, and scalability