Senior Middleware Specialist

Randstad Canada; Toronto; Hybrid; CAD 100,000 - 130,000; Full time

Job summary

A leading company seeks an experienced Senior Middleware Specialist in Toronto for a hybrid role focusing on middleware solutions and enterprise integration. The candidate will work collaboratively to optimize systems, requiring strong technical expertise and leadership skills in a dynamic integration environment.

Benefits

Competitive compensation at a premium hourly rate.

Flexible hybrid work structure.

Opportunity to lead complex middleware projects.

Collaborative technical environment.

Qualifications

• 7+ years in middleware/integration roles.
• Proficient in integration technologies and APIs.
• Strong documentation and collaboration skills.

Responsibilities

• Design and maintain middleware solutions.
• Collaborate with architects and developers.
• Monitor and troubleshoot integration performance.

Skills

Integration patterns

APIs

Scripting

Communication

Collaboration

Tools

IBM ACE

WebSphere

MuleSoft

Azure Integration Services

IBM API Connect

Azure API Management

MQ

Kafka

JMS

Shell

Python

Ansible

Terraform

Job description

We are seeking an experienced Senior Middleware Specialist to support a large-scale enterprise integration initiative. This hybrid role (3 days onsite at 222 Jarvis St., 2 days remote) focuses on designing, implementing, and optimizing middleware solutions for platform modernization and seamless system integration.

The ideal candidate will have a minimum of 7 years of hands-on experience in middleware technologies, deep knowledge of integration patterns, and proficiency across platforms like IBM ACE, WebSphere, MuleSoft, or Azure Integration Services. The role involves collaborating closely with architects, developers, and operations teams to ensure stable, secure, and scalable integration environments.

Advantages

• Competitive compensation at a premium hourly rate.
• Hybrid work structure with flexibility for both in-office and remote work.
• Involvement in a strategic modernization initiative across enterprise platforms.
• Opportunity to lead complex middleware projects using cutting-edge tools and methodologies.
• Collaborative, technical environment focused on scalability, reliability, and innovation.

Responsibilities

• Design, configure, and maintain middleware solutions across diverse platforms.
• Install, upgrade, and optimize enterprise integration tools (e.g., IBM ACE, WebSphere, MuleSoft).
• Develop integration solutions using REST, SOAP, messaging, and event-driven patterns.
• Monitor and troubleshoot performance, ensuring high availability and security compliance.
• Collaborate with cross-functional teams to address integration issues and align with project requirements.
• Support integrations with enterprise platforms such as CRM, ERP, or other systems.
• Implement automated deployment and recovery strategies.
• Produce comprehensive documentation including diagrams, configs, and operational procedures.
• Provide technical leadership and mentorship to junior staff.

Qualifications

Core Technical Expertise:

• 7+ years in middleware/integration roles within complex enterprise environments.
• Strong background in synchronous/asynchronous integration patterns and APIs.
• Experience supporting high-availability and performance-sensitive systems.

Technology Proficiency:

• Expertise in middleware platforms: IBM ACE, WebSphere, MuleSoft, Azure Integration Services, or similar.
• Proficient with API management tools (e.g., IBM API Connect, Azure API Management).
• Familiar with messaging/event platforms (e.g., MQ, Kafka, JMS).
• Scripting and automation skills (Shell, Python, Ansible, Terraform).
• Understanding of CI/CD and DevOps principles.
• Security knowledge (OAuth2.0, SAML, mTLS, API keys).

Communication & Collaboration:

• Strong documentation and communication skills.
• Ability to translate business integration needs into technical solutions.
• Collaborative mindset with experience in cross-team leadership roles.

Summary

This is a high-impact hybrid opportunity for a seasoned Middleware Specialist to lead integration efforts in a complex enterprise ecosystem. The role involves end-to-end solution design, middleware platform optimization, and cross-platform integration using industry-leading tools like IBM ACE, MuleSoft, and Azure. It’s ideal for a candidate with strong technical depth, leadership ability, and a passion for scalable integration architecture.

Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. We are dedicated to increasing diversity, equity, and inclusion within our workplace by examining our policies, practices, and systems throughout the entire employment lifecycle. We support accessibility and accommodation needs; please identify any requirements by emailing [e-mail] to ensure full participation in the interview process.