Middleware Developer – IBM App Connect Enterprise & IBM MQ

About the role

We are seeking a Middleware Developer to design, develop and support integration solutions using IBM App Connect Enterprise (ACE) v13 and IBM MQ 9.4. The role will work closely with application teams, architects and business stakeholders to deliver reliable, scalable and secure middleware services.

Key responsibilities

• Design, develop, configure and maintain integration flows and APIs with IBM ACE v13.
• Manage IBM MQ 9.4 components – queues, queue managers, channels, listeners and related messaging infrastructure.
• Implement message transformation, routing, validation, enrichment and error‑handling.
• Develop and support REST and SOAP based integrations and web services.
• Handle various message formats such as JSON and XML.
• Troubleshoot integration failures, connectivity issues and production incidents.
• Perform deployment, testing and release activities across development, test and production environments.
• Monitor middleware performance and availability, and proactively resolve issues.
• Collaborate with solution architects and development teams to capture integration requirements.
• Participate in SIT, UAT, production rollout and post‑production support.

Required profile

• 5+ years of hands‑on experience in enterprise middleware development and integration.
• Strong expertise in IBM App Connect Enterprise v13 and IBM MQ 9.4.
• Proven ability to design, develop, deploy and support integration solutions across multiple platforms.
• Experience working with application, infrastructure and business teams.

Required skills

• IBM App Connect Enterprise (ACE) v13
• IBM MQ 9.4
• ESQL and/or Java development within ACE
• REST and SOAP integration
• JSON and XML message formats
• API and service integration