Client: Supply Ontario

Work Location: 525 University Avenue, Toronto, Ontario, Canada

Job Type: Hybrid - 3 Days in Office

Start Date: September 21, 2026

End Date: September 20, 2027

Business Days: 252

Hours: 7.25 hours/day, 5 days/week

Application Deadline: Wednesday, August 26, 2026 at 9:00 AM EST

Role Snapshot

Supply 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 , strong 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 Responsibilities

- HIAL Upgrade & AWS Migration
- Execute 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 Support
- Provide 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/CD
- Develop 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 & Compliance
- Work 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 & Validation




- Support 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 & Documentation
- Develop 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 transfer and technical guidance to cross-functional support teams.
- Cross-Functional Technical Leadership
- Coordinate with Cloud Operations, Virtual Infrastructure, UNIX, Middleware Support, Network Services, Backup & Storage, QA, Security, Privacy, Architecture, and business teams.
- Provide technical leadership and subject-matter expertise in middleware technologies and integration patterns.
- Communicate technical risks, issues, dependencies, and impacts clearly to stakeholders.
- Coordinate implementation activities across multiple support teams to ensure consistent and successful delivery.

Required Skills & Experience

Skill / Experience Requirement Middleware engineering, integration services, or related technical domains 7-10+ years Leading complex platform upgrades and modernisation initiatives Required Large-scale, mission-critical application environments Required IBM DataPower, including migration from physical appliances to OpenShift Required IBM App Connect Enterprise Required Java Spring Boot microservices Required AWS cloud services Required CI/CD pipeline development and automated deployment Required OpenShift/containerised middleware platforms Required PKI, digital certificates, TLS/mTLS, encryption, and secure communications Required Enterprise network architecture and troubleshooting Required Hands-on middleware upgrades, migrations, performance tuning, HA/DR Required Production troubleshooting, monitoring, RCA, and ITIL practices Required Experience working in large-scale or regulated environments Required

Desired Skills

- Experience with Windows Server and Linux administration.
- Strong understanding of IP networking, routing, and firewall concepts.
- Healthcare integration experience, particularly HL7v3.
- Additional exposure to HL7v2, FHIR, or SOAP-based healthcare messaging.
- Understanding of Information Management, data governance, information lifecycle management, security policies, and compliance.
- Knowledge of QA practices, test planning, defect management, risk assessment, and middleware validation.
- Experience with system monitoring, performance tuning, capacity planning, and data integrity.
- Strong understanding of ITIL incident, problem, and change management.
- Ability to provide technical leadership and subject-matter expertise across cross-functional teams.
- Experience working with PHI, regulated environments, and 24x7 mission-critical services.
- Public Sector experience is nice to have.

Required Experience Areas

Middleware & Integration

- Hands-on ownership of IBM DataPower, OpenShift Containers, RHEL, and related middleware technologies.




- Experience with upgrades, migrations, performance tuning, HA/DR, TLS/mTLS, certificate management, and message durability/persistence.

CI/CD & Cloud Automation

- Hands-on experience designing, developing, and supporting CI/CD pipelines.
- Automated deployment of containerised middleware solutions using OpenShift and/or AWS.

Troubleshooting & Operational Excellence

- Strong diagnostic and root-cause-analysis capabilities.
- Experience with logs, metrics, observability, incident management, problem management, and production stability.

QA & Validation

- Experience supporting test planning, environment preparation, non-functional testing, defect triage, and deployment readiness.

Security & Compliance

- Knowledge of enterprise security, PKI, privacy requirements, system hardening, and architectural standards.

Documentation & Knowledge Transfer

- Ability to produce high-quality build books, operational guides, implementation procedures, scripts, runbooks, and support artifacts.

Cross-Functional Leadership

- Proven ability to coordinate with Architecture, Security, Network, UNIX, QA, Cloud Operations, and business teams.
- Strong communication skills with the ability to explain complex technical concepts and risks clearly.

Healthcare / Mission-Critical Environment

- Awareness of HL7v3, regulated environments, PHI handling, and 24x7 availability requirements.

Key Deliverables

- End-to-end HIAL technology upgrade and migration to AWS.
- Migration of IBM DataPower from physical appliances to containerised OpenShift deployments.
- RHEL and related operating system upgrades.
- Upgrade and deployment of HIAL Integration Bus containerised applications.
- Redesign and implementation of Full Message Body Logging (FMBL) components and servers.
- Hands-on deployment activities across Development, QA, PST, PPE, and Production environments.
- CI/CD pipelines and automated deployment processes for containerised middleware.
- Coordination with Cloud Operations, Virtual Infrastructure, UNIX, Middleware Support, Network Services, Backup & Storage, and QA teams.
- Required change and release management documentation and approvals.
- Operational guides.
- Build books.
- Implementation and rollout plans.
- Health-check procedures.
- Runbooks and support documentation.
- Readiness checklists and technical transition documentation.

Engagement & Work Arrangement

- The engagement is for 252 business days, with an option to extend for up to an additional 127 business days at the Agency's discretion.
- The resource must comply with all Agency policies and procedures.
- The resource will be provided with an Agency laptop.
- The resource must provide at least one additional monitor, external keyboard, and mouse at their own expense.
- For remote work, the resource must have a private office space and cannot work from an open communal area.
- A hard-wired internet connection with suitable bandwidth is required for remote work.
- If the required home-office conditions cannot be met, the resource may be required to work full-time onsite.
- Agency systems cannot be accessed from outside the province of Ontario without prior written approval.
- Agency laptops and related equipment cannot be removed from Ontario without prior written approval.
- Current Assignment Type: Hybrid
- Expected onsite schedule: 3 days per week in the office.
- The Hiring Manager may require additional onsite presence based on business requirements.

Ideal Candidate Profile

We are looking for a Senior Middleware Specialist with strong hands-on experience in IBM DataPower, IBM App Connect Enterprise, OpenShift, AWS, Java Spring Boot, CI/CD, RHEL, PKI, TLS/mTLS, and enterprise integration .

The ideal candidate will have experience leading complex middleware modernisation and migration initiatives in mission-critical, highly regulated environments , preferably healthcare or public sector, with robust troubleshooting, security, operational, documentation, and cross-functional leadership capabilities.

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