Middleware Specialist

Lotus IT Solutions; Toronto; On-site; CAD 111,000 - 159,000; Full time

Job summary

Lotus IT Solutions is seeking a Senior Middleware Specialist for a fully onsite engagement in Toronto. You will lead the planning, design, deployment, and daily operational support of middleware and integration solutions across a complex enterprise environment.

The role requires strong expertise with IBM ACE, IBM WebSphere, MuleSoft, and Azure Integration Services, plus hands-on experience with API gateways, messaging systems, and CI/CD pipelines.

Qualifications

• Minimum 7 years of experience in middleware and integration technologies.
• Proven experience designing, implementing, and supporting enterprise integration solutions.
• Deep understanding of integration patterns: synchronous, asynchronous, REST, SOAP, event-driven, messaging.

Responsibilities

• Plan, design, implement, and maintain integration solutions using enterprise middleware platforms.
• Provide daily support, configuration, and administration of middleware and related infrastructure.
• Build and maintain CI/CD pipelines for middleware deployment using Jenkins, GitHub Actions, GitLab CI, or Azure DevOps.
• Deploy and manage containerized workloads using Docker, Kubernetes, and cloud platforms.

Skills

Middleware expertise

API gateway

CI/CD

Cloud platforms

Docker/Kubernetes

Tools

IBM ACE

IBM WebSphere

MuleSoft

Azure Integration Services

Job description

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)
• Strong 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.

• Final role details, responsibilities, and terms will be confirmed with shortlisted candidates. Compensation may vary based on experience. Errors and omissions excepted.