Senior Security Analyst

Date: 30 Jan 2026

Location:

Mississauga, ON, CA, L5N 0E1

Work Location Type: Professional

It’s not a package. It’s a promise®.

As Canada’s leading integrated freight, package, and logistics provider, we’ve been helping promises get where they need to be for more than 60 years. How does the magic happen? The journey starts with you. The places we go, the elements we brave, the promises we deliver – it’s all possible because of our people. So, whether you’re looking to build new skills, make an impact in your community, or inspire your team, we go there for you.

Description

We are seeking a hands-on Senior Security Engineer/Analyst to build and enhance our security infrastructure. You'll deploy enterprise security platforms, develop SIEM detection capabilities, and lead technical implementation of cloud security projects. This role requires someone who understands how security technologies work internally and can configure, optimize, and troubleshoot them in production environments. You will also be conduct end to end security investigations across the incident lifecycle.

Key Responsibilities

Deploy and configure enterprise security platforms including
- EDR solutions (CrowdStrike, SentinelOne, Defender for Endpoint),
- SIEM platforms (Splunk, CrowdStrike Falcon LogScale, Google Chronicle),
- Zero Trust network security (Zscaler-ZIA/ZPA),
- Email security (Proofpoint, EOP)
Build and maintain SOC infrastructure including SIEM architecture, log ingestion pipelines, custom detection rules, correlation logic, and automation workflows
Design and implement Zero Trust network security controls across hybrid cloud environments
Lead technical security projects in AWS and Azure, including deployment of cloud-native security services (GuardDuty, Security Hub, Azure Sentinel, Defender for Cloud)
Implement cloud security controls including CSPM solutions, secure infrastructure as code practices (Terraform, CloudFormation), and integrate application security testing (SAST/DAST) into CI/CD pipelines
Support incident response activities through log analysis, forensic investigation, and remediation coordination
Conduct security assessments of systems and applications, providing technical remediation guidance
Design and build security dashboards using query languages to help the team visualize security data, track emerging threats, and measure our security posture
Maintain documentation for security configurations, operational procedures, and incident response playbooks
Collaborate with IT and engineering teams to implement security best practices across the organization
This role will include an on call rotation.

Required Qualifications

Bachelor's degree in Computer Science, Information Security, or related field (or equivalent experience)
5+ years of hands-on security engineering experience
Proven experience deploying and managing enterprise security tools in production environments
Strong understanding of SIEM platforms, including data ingestion, parsing, correlation rules, and detection engineering
Deep knowledge of cloud security in AWS and Azure environments
Experience with EDR platforms, network security tools, and email security solutions
Understanding of incident response processes and security forensics
Strong technical documentation and communication skills

Preferred Certifications

GIAC Certified Incident Handler (GCIH) or GIAC Security Essentials (GSEC)
AWS Certified Security – Specialty or Azure Security Engineer Associate
CISSP, CCSP, or equivalent security certifications

POSTING DETAILS
Location: 530 - Corporate
Working Conditions: Office Environment

Reports to: Sr Manager Technology Security
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Purolator is an equal opportunity employer committed to diversity and inclusion. We consider all qualified applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, Aboriginal/Indigenous status or any other factors considered discriminatory. If you require an accommodation during the recruitment process, we will work with you to meet your needs.

At Purolator, we are committed to ensuring our recruitment process is fully compliant with Canadian law. As part of the first round of pre-screening, the application process may involve the integration of human oversight with an automated AI solution (“AI Tool”) to assist in evaluating candidate qualifications for the position for which they are applying. This AI Tool assists in automating certain stages, such as resume screening and skills assessments, and helps expedite getting to the initial communication stage with candidates. Any personal information shared with Purolator will be used strictly for the purposes of these job applications in compliance with applicable privacy law. If you have any questions about the process, please contact: TalentCOE@purolator.com

We recognize that our employees and their families are key stakeholders. We will only be successful as a business if we provide our employees with a safe and healthy workplace and we have the right people in the right roles with the support they need to succeed. We hire for attitude and train for skills. To learn more about us and our values, go to www.purolator.com.

At Purolator, every day is an opportunity for our employees to connect with one another and with our customers to help make a positive impact in the communities where we live, work and play.