Senior DevOps Engineer

Position Title: RQ00780 - Senior DevOps / Cloud Engineer Location: Toronto, ON (Hybrid) Mode: Contract Client: Ontario Health Position Overview Successful candidate will be responsible for maintaining reliable, secure, scalable, and repeatable build, deployment, infrastructure, runtime, and operational capabilities across AWS environments. The role requires strong hands-on experience with GitHub Actions, AWS CloudFormation, AWS CDK, Python, JavaScript, Amazon EC2, Amazon ECS, Linux, Mirth Connect, PostgreSQL, OpenSearch, AWS messaging services, IAM, OAuth2/OIDC, SMART on FHIR, and production operations. Key Responsibilities CI/CD & Infrastructure as Code Design, maintain, enhance, and troubleshoot GitHub Actions CI/CD pipelines used to build, test, package, deploy, and promote application and infrastructure components.Develop and maintain reusable workflow automation and environment-promotion processes.Create, update, review, and troubleshoot AWS infrastructure using AWS CloudFormation and AWS CDK.Develop and maintain AWS CDK solutions using Python and JavaScript.Support automated deployment and release-management processes across development, testing, staging, and production environments. AWS Cloud Platform & Infrastructure Deploy, configure, maintain, monitor, and troubleshoot applications running on Amazon EC2 and Amazon ECS.Support Linux-based and containerized application workloads.Manage environment configurations, runtime dependencies, deployment parameters, and infrastructure components.Troubleshoot application and infrastructure issues involving Tomcat, Java, Spring Boot, Node.js, Linux, and container runtimes.Build, maintain, patch, test, and promote standardized Linux machine images using AWS EC2 Image Builder.Maintain secure and repeatable cloud environments across multiple deployment stages. Database & Search Operations Support PostgreSQL or comparable enterprise database platforms, including:ConnectivityAccess managementConfigurationBackup and recoveryPerformance monitoringCapacity managementOperational troubleshootingAdminister and troubleshoot Amazon OpenSearch Service clusters.Monitor cluster health, nodes, indexes, mappings, capacity, storage, access controls, query performance, scaling, upgrades, and operational issues.AWS Messaging, Storage & Monitoring Configure, maintain, monitor, and troubleshoot:Amazon SQSAmazon Data FirehoseAmazon S3Amazon CloudWatchAWS IAMAWS Secrets ManagerImplement monitoring, logging, alerting, dashboards, and operational diagnostics.Maintain application secrets, certificates, IAM permissions, and environment-specific configuration.Identity, Access & Healthcare Authentication Maintain enterprise identity and access management using NetIQ or comparable IAM platforms.Configure and support SMART on FHIR and OAuth2/OIDC integrations.Manage:OAuth2/OIDC clientsRedirect URIsScopesAuthorization endpointsToken endpointsRoles and permissionsService identitiesSecretsApplication accessTroubleshoot authentication and authorization issues across environments. Production Support & Operations Provide production deployment and operational support for enterprise applications and integration platforms.Perform incident troubleshooting, root-cause analysis, and issue resolution.Support patching, capacity management, backup/recovery, change management, and operational readiness.Monitor application and infrastructure health and proactively identify reliability issues.Support release planning, production deployments, and continuous improvement of platform reliability.Develop and maintain operational runbooks, deployment procedures, recovery procedures, and technical documentation. Collaboration & Knowledge Transfer Work collaboratively with application, infrastructure, security, integration, architecture, and business teams.Provide technical guidance and troubleshooting support to project stakeholders.Prepare and maintain infrastructure, deployment, environment, and operational documentation.Conduct knowledge-transfer sessions, technical walkthroughs, and demonstrations before completion of the engagement.Ensure key deliverables, milestones, documentation, and operational knowledge are transferred to the Agency team. Required Qualifications & Technical Skills The successful candidate must demonstrate strong hands-on experience with: DevOps & CI/CD Senior-level DevOps, Cloud Platform Engineering, or Site Reliability Engineering experience.Git and GitHub.GitHub Actions.CI/CD pipeline design and troubleshooting.Reusable workflow automation.Release automation and environment promotion. Infrastructure as Code AWS CloudFormation.AWS CDK.CDK development using Python and JavaScript.