senior devops/cloud engineer.

We are seeking a highly accomplished Senior DevOps/Cloud Engineer for an enterprise-level contract opportunity based in Toronto. In this role, you will take on a premier cloud infrastructure, platform engineering, and site reliability capacity, specializing in designing, maintaining, and automating CI/CD pipelines, Infrastructure-as-Code (IaC), containerized microservices, and enterprise data platforms.

As a principal cloud engineer, you will bridge the gap between software development squads, identity management systems, and cloud platform infrastructure. Operating within a hybrid work model in Toronto, you will lead full SDLC automation—developing AWS CDK solutions in Python and JavaScript, managing ECS container runtimes, administering OpenSearch clusters and PostgreSQL databases, and supporting secure healthcare integration engines. This position is tailored for a technical authority with public sector experience who can oversee automated image pipelines, troubleshoot runtime environments, and optimize cloud reliability.

Location: Toronto, ON

Assignment Type: Hybrid (Onsite as needed basis)

Contract Duration: 6-month contract (with potential for extension)

Advantages
Modern Cloud & Infrastructure Automation: Advance expertise using AWS CDK, CloudFormation, GitHub Actions, and Python/JavaScript for end-to-end platform automation.

Complex Middleware & Data Ecosystem: Direct hands-on administration across Amazon ECS, OpenSearch Service clusters, PostgreSQL databases, and Mirth Connect integration engines.

Enterprise Security & Identity Scope: Manage secure OAuth2/OIDC configurations, NetIQ IAM, SMART on FHIR authorization endpoints, and AWS security tooling.

Hybrid Work Flexibility: Enjoy a balanced working structure combining target-state cloud engineering in Toronto with remote work flexibility.

Responsibilities
Maintain and enhance GitHub Actions CI/CD pipelines used to build, test, package, and promote application and infrastructure components across environments.

Develop, maintain, and troubleshoot AWS Infrastructure-as-Code (IaC) solutions utilizing CloudFormation and AWS CDK written in Python and JavaScript.

Deploy, configure, monitor, and troubleshoot workloads running on Amazon EC2 and Amazon ECS, including container task definitions and runtime settings.

Manage, configure, and troubleshoot Mirth Connect integration engines on Amazon ECS, including channels, connectors, JVM runtimes, certificates, and secrets.

Build, maintain, patch, and promote standardized Linux machine images using automated AWS EC2 Image Builder pipelines.

Oversee PostgreSQL database operations, managing user access, connectivity, backups, performance tuning, and operational troubleshooting.

Administer Amazon OpenSearch Service clusters, ensuring cluster health, capacity planning, index management, access controls, and query performance.

Configure and support AWS messaging and storage infrastructure, including Amazon SQS queues, Data Firehose streams, and S3 storage.

Maintain NetIQ IAM integrations and SMART on FHIR/OAuth application settings, managing OAuth2/OIDC clients, scopes, redirect URIs, and token endpoints.

Support secure application connectivity and endpoints between cloud platforms, external eReferral systems, and enterprise Master Data Management (MDM) platforms.

Implement operational diagnostics, logging, alerting, and interactive performance dashboards using AWS CloudWatch and security tooling.

Perform root-cause analysis, incident response, patching, capacity management, and release support across non-production and production environments.

Author comprehensive technical documentation, architecture blueprints, deployment guides, operational runbooks, and deliver structured knowledge transfer.

Qualifications
Core Requirements & Technical Stack
Public Sector Experience: Mandatory prior experience working within public sector environments.

CI/CD & Infrastructure-as-Code: Strong hands-on experience designing and troubleshooting CI/CD pipelines using GitHub Actions, paired with expert AWS CDK (Python/JavaScript) and CloudFormation experience.

AWS Cloud Operations & Runtimes: Proven experience supporting applications on Amazon EC2 and Amazon ECS, alongside deep troubleshooting skills across Linux, Tomcat, Java, Spring Boot, and Node.js environments.

Integration Engines & Image Pipelines: Direct experience deploying and configuring Mirth Connect in Amazon ECS and managing automated image pipelines with AWS EC2 Image Builder.

Data & Search Services: Hands-on experience administering PostgreSQL databases and Amazon OpenSearch Service clusters (cluster health, indexing, capacity, security).

Identity & Security Integration: Experience maintaining enterprise IAM platforms (NetIQ) and OAuth2/OIDC/SMART on FHIR security configurations (scopes, client settings, secrets, token endpoints).

AWS Ecosystem & Tooling: Proficient with AWS services including SQS, Data Firehose, S3, CloudWatch, IAM, Secrets Manager, and related operational tooling.

Preferred Assets
Domain & System Assets: Experience supporting provider directories, eReferral systems (e.g., Ocean, Novari, Ricoh), central intake solutions, or EMR environments (Epic, Cerner, MEDITECH).

Master Data & Event Patterns: Familiarity with IBM MDM integrations, FHIR Pub/Sub, FHIR Subscriptions, or EventBridge patterns.

Soft Skills & Delivery Attributes
Incident Management & Problem Solving: Exceptional diagnostic and root-cause analysis skills to resolve complex runtime, network, and system bottlenecks.

Stakeholder Collaboration & Communication: Strong verbal and written communication skills to collaborate effectively across application, security, and architecture teams.

Summary
If you're interested in the "Senior DevOps/Cloud Engineer" role based in Toronto, we encourage you to apply online at
Only qualified candidates will be contacted for the next steps. We look forward to hearing from you!

Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.

Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to View email address on randstad.com to ensure their ability to fully participate in the interview process.

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