Middleware Specialist - Senior

Position Overview

The Government Services Integration Cluster is seeking an experienced Senior Middleware Specialist with a minimum of 7 years of experience in middleware and enterprise integration technologies.

The successful candidate will be responsible for designing, developing, deploying, maintaining, and supporting middleware and integration solutions in complex enterprise environments.

The role requires strong expertise in Enterprise Service Bus (ESB) platforms, API management, messaging technologies, cloud integration, DevOps, and enterprise application support.

Key Responsibilities

• Plan, design, develop, deploy, test, implement, and maintain middleware solutions.
• Provide technical consulting, analysis, and daily operational support for middleware products.
• Design and implement enterprise integration solutions across multiple applications and systems.
• Configure, install, tune, optimize, and administer middleware platforms.
• Work with web servers, application servers, message brokers, messaging services, adapters, and integration gateways.
• Troubleshoot complex application, middleware, infrastructure, security, and data integrity issues.
• Support change management, release management, incident management, and problem management processes.
• Develop technical documentation, design artefacts, configurations, scripts, and test cases.
• Assess and test Change Requests (CRQs) and participate in release promotions and implementations.
• Perform functional, security, load, and stress testing and resolve identified issues.
• Build and maintain automated CI/CD pipelines for build, testing, and deployment.
• Deploy and manage containers and workload orchestration platforms.
• Support cloud-native applications and hybrid integration solutions across Azure, AWS, or other cloud platforms.
• Monitor application performance, availability, and system health.

Required Skills and Experience

1. Core Middleware and Integration Experience

• Minimum 7 years of experience in middleware and integration technologies within complex enterprise environments.
• Proven experience designing, implementing, and supporting enterprise integration solutions.
• Strong understanding of integration patterns, including:
• Synchronous and asynchronous integration.
• REST and SOAP APIs.
• Event-driven architecture.
• Messaging and service-based integration.
• Strong troubleshooting and problem-solving skills across application, middleware, and infrastructure layers.
• Experience supporting mission-critical enterprise systems with high availability and performance requirements.

2. Technical Skills and Experience

• Expertise in middleware platforms such as:
• IBM App Connect Enterprise (ACE).
• IBM WebSphere.
• MuleSoft.
• Azure Integration Services.
• Other Enterprise Service Bus (ESB) platforms.
• Experience with API Gateway and API Management platforms:
• IBM API Connect.
• Azure API Management (APIM).
• Experience with messaging and event platforms:
• IBM MQ.
• Kafka.
• JMS.
• Azure Event Grid.
• Familiarity with Azure, AWS, or GCP cloud platforms and hybrid integration environments.
• Knowledge of security and authentication protocols:
• OAuth 2.0.
• SAML.
• Mutual TLS.
• API Keys.
• Experience integrating enterprise platforms such as SharePoint, Microsoft Dynamics CRM, Siebel, Curam, or similar COTS applications.
• Hands-on experience with scripting and automation tools:
• Shell Scripting.
• Python.
• Ansible.
• Terraform.
• Understanding of CI/CD pipelines and DevOps practices.

3. Communication and Documentation Skills

• Excellent verbal and written communication skills.
• Ability to communicate effectively with technical and non-technical stakeholders.
• Experience preparing technical documentation, architecture documents, and solution designs.
• Ability to translate business integration requirements into technical specifications.
• Strong collaboration skills and experience leading technical discussions.
• Ability to work effectively in cross-functional teams.

4. Public Sector Experience

• Previous experience working with government or public sector organizations.
• Understanding of enterprise IT environments within government institutions.
• Experience supporting large-scale public sector application integration projects.

Requirements

Additional Technical Requirements / Desirable Skills

Middleware and Enterprise Platforms

• Windows Internet Information Services (IIS).
• IBM HTTP Server and Apache.
• IBM WebSphere.
• IBM Cognos Analytics.
• IBM Business Automation Workflow.
• Oracle Siebel.
• Oracle Identity Manager and Oracle Internet Directory.
• Oracle Enterprise Business Suite (EBS).
• Oracle Analytics Server.
• Oracle Intelligent Advisor.
• Informatica PowerCenter.
• Control-M Workload Automation.

Databases and Operating Systems

• Oracle Database 19c and later.
• Solaris.
• Windows Server.
• AIX.
• Linux / Red Hat Enterprise Linux.

Containers and Orchestration

• Docker.
• Kubernetes.
• Amazon EKS.
• Azure AKS.

Monitoring and Logging

• Nagios.
• Prometheus.
• Dynatrace.
• Grafana.
• SiteScope.
• Elasticsearch.
• Logstash.
• Kibana.

Other Desirable Knowledge

• Information Management principles and practices.
• Portal services.
• GO-PKI or similar Public Key Infrastructure (PKI).
• Accessibility for Ontarians with Disabilities Act (AODA).
• ITIL standards and practices.
• Application monitoring, performance management, and data integrity.

Mandatory Requirements – Candidate Screening

Must Have

Candidates must demonstrate

• Minimum 7 years of middleware/integration experience in complex enterprise environments.
• Proven experience designing, implementing, and supporting middleware integration solutions.
• Strong understanding of REST, SOAP, synchronous/asynchronous, event-driven, and messaging integration patterns.
• Expertise in at least one major middleware/ESB platform, such as IBM ACE, IBM WebSphere, MuleSoft, or Azure Integration Services.
• Experience with API Gateway/API Management platforms such as IBM API Connect or Azure APIM.
• Availability to work onsite 5 days per week at 222 Jarvis Street, Toronto.

Ideal Candidate Profile

The ideal candidate should have

• 7+ years of enterprise middleware and integration experience.
• Strong hands-on experience with IBM ACE, IBM WebSphere, MuleSoft, or Azure Integration Services.
• Practical experience with IBM MQ, Kafka, JMS, or similar messaging technologies.
• Strong API integration and API management experience.
• Experience with cloud platforms and hybrid integration.
• Knowledge of DevOps, CI/CD, automation, and containerization.
• Excellent troubleshooting, documentation, and stakeholder communication skills.
• Previous Ontario Public Sector (OPS) or government experience.