Senior devops engineer Jobs in Toronto, ON

Job Title: Senior DevOps/Cloud Engineer

Location: Toronto, Ontario

Work Model: Onsite

Duration: 12 months

Extension: 1 Time

Security Clearance: CRJMC

Must Haves

• Extensive experience working with container and non-container workloads
• Extensive experience working with Designing and building Terraform/IAC and ansible playbooks.
• Design, provision, and manage AWS infrastructure including VPCs, subnets, security groups, IAM policies, EC2, ECS, EKS, RDS, S3, Route 53, and CloudFront.
• Architect multi-account AWS environments following AWS Well-Architected Framework principles.
• Manage AWS cost optimization strategies including Reserved Instances, Savings Plans, and rightsizing.
• Develop, maintain, and refactor Terraform modules and configurations for all cloud infrastructure.
• Author and maintain Ansible playbooks, roles, and collections for server configuration, application deployment, and compliance enforcement.
• Operate and administer Red Hat OpenShift Service on AWS (ROSA) clusters, including cluster upgrades, node scaling, and add-on management.
• Design and maintain CI/CD pipelines (GitLab CI, Azure DevOps Service) for infrastructure and application delivery.

Description / Responsibilities / Skills

Description

• Support and operate production AWS-hosted workloads.
• Participate in incident response, troubleshooting, and root cause analysis.
• Investigate and unblock stalled technical initiatives.
• Help reduce operational toil through automation and process improvement.
• Evaluate modernization opportunities and contribute to architectural decisions.
• Work closely with engineering and security teams to improve platform reliability and security.

Deliverables

• Design, build and support cloud environments to create digital products
• Monitor and assess the performance of applications in a cloud environment to ensure solutions are available
• Create, test and implement safeguards to maintain data integrity and protect against unauthorized access

Experience & Skill Set Requirements

Cloud Infrastructure & AWS - 25%

• Implement and maintain CloudTrail, Config, GuardDuty, Security Hub, and AWS Organizations SCPs.

Infrastructure as Code - Terraform/Terraform Cloud - 20%

• Manage Terraform Cloud workspaces, remote state backends, variable sets, and team access policies.
• Enforce IaC standards including module versioning, input/output conventions, and documentation.
• Implement drift detection and remediation workflows using Terraform Cloud run tasks and policy-as-code (Sentinel or OPA).
• Lead Terraform code review processes and mentor junior team members on best practices.

Configuration Management - Ansible - 15%

• Manage Ansible inventories across dynamic cloud environments using AWS dynamic inventory plugins.
• Integrate Ansible automation with CI/CD pipelines for repeatable and auditable deployments.
• Use Ansible Vault for secrets management and always ensure secure handling of credentials.
• Develop idempotent, well-tested automation that reduces manual toil and configuration drift.

Container Platform - OpenShift ROSA - 10%

• Define and enforce OpenShift RBAC, NetworkPolicies, and SecurityContextConstraints (SCCs).
• Manage Operators, Helm charts, and Kustomize overlays for workload deployment on ROSA.
• Ensure cluster hardening against CIS benchmarks and organizational security policies.

CI/CD Pipelines - 10%

• Implement GitOps workflows using ArgoCD for declarative, auditable deployments to OpenShift ROSA.
• Integrate security scanning tooling (SAST, container scanning, dependency auditing) into pipeline gates.
• Champion shift-left testing principles, ensuring infrastructure changes are validated before promotion to production.
• Maintain pipeline-as-code standards with versioned, peer-reviewed pipeline definitions.

Security & Compliance - 10%

• Serve as a key contributor to the team's security posture, embedding security controls throughout the infrastructure and CI/CD lifecycle.
• Implement secrets management solutions (AWS Secrets Manager) and enforce least-privilege access.
• Support vulnerability management processes by triaging findings from infrastructure and container scanning tools.
• Participate in incident response and post-mortem processes, ensuring remediation actions are tracked and resolved.

Observability & Reliability - 10%

• Build and maintain end-to-end observability solutions using AWS CloudWatch.
• Define and track SLOs and SLIs for critical platform services and workloads.
• Lead on-call incident response for platform-level issues, conducting RCAs and driving permanent fixes.
• Produce and maintain runbooks and architectural decision records (ADRs).