Senior Security Analyst

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 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 conduct end to end security investigations across the incident lifecycle.

Key Responsibilities

Deploy and configure enterprise security platforms including

EDR solutions (Crowd Strike, Sentinel One, Defender for Endpoint)

SIEM platforms (Splunk, Crowd Strike Falcon Log Scale, 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 (Guard Duty, Security Hub, Azure Sentinel, Defender for Cloud)

Implement cloud security controls including CSPM solutions, secure infrastructure as code practices (Terraform, Cloud Formation), 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

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/igenous 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…