Client: Supply OntarioWork Location: 525 University Avenue, Toronto, Ontario, CanadaJob Type: Hybrid - 3 Days in OfficeStart Date: September 21, 2026End Date: September 20, 2027Business Days: 252Hours: 7.25 hours/day, 5 days/weekApplication Deadline: Wednesday, August 26, 2026 at 9:00 AM ESTRole SnapshotSupply Ontario is seeking a Senior Middleware Specialist to support the Provincial Common Integration Service team responsible for enterprise shared services, including the Health Information Access Layer (HIAL) and ONE Access Gateway (OAG). The successful candidate will provide senior-level, hands-on middleware engineering expertise for the HIAL technology upgrade and migration to AWS. The role will focus on modernising mission-critical middleware platforms through the containerisation of IBM DataPower and IBM App Connect Enterprise on OpenShift, operating system upgrades, Java Spring Boot modernisation, CI/CD automation, and the redesign and implementation of Full Message Body Logging (FMBL).The ideal candidate will bring 7-10+ years of progressive middleware/integration experience, solid expertise in IBM DataPower, OpenShift, AWS, CI/CD, Java Spring Boot, PKI/security, and experience supporting large-scale, highly regulated or mission-critical environments.Key ResponsibilitiesHIAL Upgrade & AWS MigrationExecute end-to-end technical activities for the HIAL technology upgrade and migration to AWS.Perform system preparation, deployment, configuration, optimisation, testing, and validation across Agency environments.Lead the migration of IBM DataPower from physical appliances to containerised deployments on OpenShift.Support the upgrade of operating systems, including Red Hat Enterprise Linux (RHEL).Upgrade and deploy HIAL Integration Bus (HIB)



containerised applications.Support the modernisation of Java Spring Boot-based components.Redesign and implement Full Message Body Logging (FMBL) components and servers.Ensure upgrades and migrations are completed with minimal disruption to mission-critical provincial health services.Middleware Engineering & Technical SupportProvide end-to-end middleware expertise covering planning, technical analysis, solution design, deployment, development support, testing, implementation, maintenance, upgrades, and operational support.Provide expert-level troubleshooting for complex middleware, integration, infrastructure, and connectivity issues.Perform hands-on upgrades, deployments, configuration, performance tuning, and optimisation.Support high availability, disaster recovery, message durability/persistence, TLS/mTLS, and certificate management.Diagnose and resolve complex production and infrastructure-level issues.Support middleware environments across Development, QA, PST, PPE, and Production.Cloud, OpenShift & CI/CDDevelop and maintain CI/CD pipelines for deploying and managing containerised middleware solutions.Automate deployment processes for IBM DataPower and related components on OpenShift and AWS cloud-native platforms.Support cloud migration and modernisation activities using AWS services.Ensure containerised middleware deployments align with enterprise architecture, security, and operational standards.Coordinate with Cloud Operations,



Infrastructure, UNIX, Network, Middleware Support, and other technical teams.Security, Architecture & ComplianceWork closely with Architecture, Security, Privacy, Infrastructure, and other enterprise teams.Ensure all technical activities comply with enterprise security, privacy, architectural, and regulatory requirements.Apply strong knowledge of PKI, digital certificates, TLS/mTLS, encryption standards, and secure system-to-system communication.Support system hardening and security configuration activities.Identify technical risks and issues and recommend appropriate mitigation strategies.Ensure compliance with Agency policies, standards, change management, and release management processes.QA, Testing & ValidationSupport QA teams by preparing test environments and ensuring technical readiness.Assist with test planning, environment setup, non-functional testing, defect resolution, and validation.Troubleshoot and resolve defects identified during testing.Coordinate technical readiness activities for environment promotions and production deployment.Ensure middleware components meet stability, performance, security, and operational requirements.Operational Excellence & DocumentationDevelop and maintain detailed implementation plans, technical procedures, runbooks, and operational guides.Prepare and maintain build books, health-check procedures, rollout plans, readiness checklists, and support documentation.Support monitoring, observability, performance tuning, capacity planning, and data integrity.Apply ITIL practices for incident, problem, and change management.Prepare status reports and technical documentation supporting go-live and operational transition.Provide knowledge

📌 Rq00763 – Middleware Specialist – Senior (Toronto)
🏢 S M Software Solutions
📍 Toronto