Sign in to apply for this position Sign In to Apply Ref: RQ11527 Contract – 12 Months (Extension Possible) Onsite – Toronto (222 Jarvis St.) Posted Date: 2026-10-30

Location:
Onsite – Toronto (222 Jarvis St.) Public Sector

Experience:
Required – OPS / Public Sector Contract End Date: 2027-10-01
* Rate: $98/hour Overview The Government Services Integration Cluster, under the Ministry of Public and Business Service Delivery and Procurement, is seeking a Senior Middleware Specialist for a fully onsite engagement in Toronto. The successful consultant will provide end-to-end planning, design, development, deployment, and daily operational support of middleware and integration solutions across a complex enterprise environment. This role is critical to sustaining mission-critical government systems and driving integration excellence across multiple platforms and stakeholders.

Key Responsibilities
• Plan, design, implement, and maintain integration solutions using enterprise middleware platforms such as IBM App Connect Enterprise (ACE), IBM WebSphere, MuleSoft, or Azure Integration Services
• Provide daily support, configuration, tuning, and administration of middleware products and associated infrastructure
• Design and support integration patterns including synchronous/asynchronous, REST, SOAP, event-driven, and messaging-based architectures
• Manage API Gateway and Management platforms (e.g., IBM API Connect, Azure APIM) including configuration and security policies
• Work with messaging and event platforms such as IBM MQ, Kafka, JMS, and Azure Event Grid
• Build and maintain automated CI/CD pipelines for middleware build, test, and deployment using tools such as Jenkins, GitHub Actions, GitLab CI, or Azure DevOps
• Deploy and manage containerized workloads using Docker, Kubernetes, EKS, or AKS on cloud platforms (AWS, Azure, or GCP)




• Perform application monitoring and support in alignment with ITIL standards, using tools such as Nagios, Prometheus, DynaTrace, Grafana, and Elasticsearch/Logstash/Kibana (ELK)
• Assess and test Change Requests (CRQs) with technical content, updating documentation as necessary and participating in release promotions
• Troubleshoot and resolve issues spanning application, middleware, and infrastructure layers, including data integrity, security, configuration, and recovery
• Develop clear and comprehensive technical documentation and translate business integration requirements into solution designs
• Collaborate with cross-functional teams and communicate effectively with both technical and non-technical stakeholders Must-Have Requirements
• Minimum 7 years of experience in middleware and integration technologies within complex enterprise environments
• Proven experience designing, implementing, and supporting integration solutions using enterprise middleware platforms
• Deep understanding of system integration patterns including synchronous/asynchronous, REST, SOAP, event-driven, and messaging architectures
• Expertise in middleware platforms such as IBM App Connect Enterprise (ACE), IBM WebSphere, MuleSoft, Azure Integration Services, or equivalent ESBs
• Experience with API Gateway and Management platforms including IBM API Connect and/or Azure APIM
• Hands-on experience with messaging and event platforms (IBM MQ, Kafka, JMS, Azure Event Grid)




• Robust troubleshooting skills across multiple layers including application, middleware, and infrastructure
• Experience supporting mission-critical, high-availability systems with strict performance requirements Nice-to-Have Skills
• Experience integrating with enterprise COTS platforms such as SharePoint, Microsoft Dynamics CRM, Oracle Siebel, IBM Cognos Analytics, IBM Business Automation Workflow, or Curam
• Familiarity with cloud platforms (Azure, AWS, GCP) and hybrid integration scenarios
• Knowledge of security protocols including OAuth 2.0, SAML, mutual TLS, and API key management
• Hands-on experience with scripting and automation tools such as Shell, Python, Ansible, or Terraform for middleware deployment and operations
• Experience sustaining large application implementations on platforms such as Oracle Database 19c, Oracle Identity Manager, Oracle Analytics Server, Informatica PowerCenter, or CTRL-M Workload Automation
• Knowledge of operating environments including Solaris, AIX, Windows, and Red Hat Enterprise Linux
• Knowledge of GO-PKI Security or similar public/private key infrastructure
• Familiarity with Information Management principles, portal services, and AODA regulations
• Experience working within Ontario Public Sector or broader public sector environments Work Environment This is a fully onsite role, 5 days per week, located at 222 Jarvis St., Toronto. No security clearance is required. The role involves collaboration across cross-functional technical teams and engagement with both technical and non-technical stakeholders. CI/CD, DevOps, and Agile practices are part of the working environment. Previous Job Job Listings Next Job
• Final role details, responsibilities, and terms will be confirmed with shortlisted candidates. Compensation may vary based on experience. Errors and omissions excepted.

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