Senior Platform Engineer Job at Randstad (Mississauga)

Senior Platform Engineer

Randstad

Location:
Canada , Mississauga

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

61.03 - 64.79 CAD / Hour

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Job Description:

Our Client is seeking an experienced Senior Platform Engineer – 6-Month Contract (High Renewal Potential!). Security Clearance: Must be eligible for or hold Protected B clearance. You’ll work with a high-impact team building and maintaining mission-critical platform frameworks supporting enterprise-scale operations. Looking for a Senior Platform Engineer to support, maintain, and evolve our core platform frameworks. In this role, you’ll work closely with architecture, automation, and delivery teams to ensure platforms are reliable, secure, scalable, and aligned with business needs. You’ll take ownership of complex platforms end-to-end—from design and build through deployment, optimization, and Tier 3 support—while mentoring other engineers and contributing to long-term platform roadmaps.

Job Responsibility:

Build, deploy, and maintain highly available, resilient, and high-performance platforms
Design platform architectures with a focus on disaster recovery, scalability, and security
Create build configurations and automate deployments across environments
Partner with Architecture teams during analysis and design decisions
Test platform resiliency, validate functionality, and troubleshoot complex issues
Tune platforms for optimal performance and document procedures
Collaborate with automation teams to develop CI/CD and deployment automation
Maintain platform currency through patching and security updates
Provide Tier 3 support and technical leadership during outages
Develop and maintain platform documentation, workflows, and recovery procedures
Contribute to and maintain platform roadmaps
Coach, mentor, and train platform engineers and cross-functional teams

Requirements:

5–7 years of hands-on experience administering and owning at least one of the following platforms: WSO2 (strongly preferred) or GitLab
Proven experience deploying and managing applications on Kubernetes, preferably OpenShift
Strong communication and collaboration skills
Must meet Protected B security clearance requirements
6–9 years working with automation platforms (e.g., GitLab, Ansible Tower, UiPath, Artifactory)
3–5 years of middleware and technology infrastructure experience
6–9 years supporting web applications
3–5 years of private and/or public cloud experience
Hands-on development/scripting experience (e.g., Bash, PowerShell, Python, Ansible, Git)
Experience with identity management solutions (WSO2, ADFS)
Familiarity with CI/CD pipelines and deployment workflows
Experience with Windows and Linux operating systems
Understanding of relational and non-relational databases
Knowledge of information security standards (PCI, SOC 1/2)
Exposure to SIEM tools (e.g., Splunk) and monitoring solutions
Post-secondary diploma or university degree in a related field, or an equivalent combination of education, training, and experience

What we offer:

Company offers a dynamic work environment where innovation, collaboration, and professional development are highly valued
Work on enterprise-scale, mission-critical platforms
Influence platform strategy and architecture decisions
Opportunity to mentor, lead, and shape best practices
Collaborative environment with strong technical ownership

Additional Information:

Job Posted:
February 21, 2026

Expiration:
April 01, 2026

Randstad - All Job Offers

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