Application Integration Engineer (IBM MQ, ACE) - 100%

About the role

Julius Baer is looking for an Application Integration Engineer (100%) in Madrid who combines the roles of Integration Specialist and IBM MQ Administrator. The person is responsible for the design, implementation and operational excellence of the bank's global messaging and integration infrastructure, ensuring reliable, secure and high-performance exchange of critical financial data across distributed systems. The work uses IBM App Connect Enterprise (ACE), IBM MQ and IBM MQ MFT.

Key responsibilities

• Design, develop and deploy secure, scalable integration solutions with ACE, including message routing, transformation (ESQL/XML/JSON) and orchestration of service interactions.
• Install, administer and optimise IBM MQ queue managers and infrastructure, supporting hub-and-spoke topologies and cluster architectures.
• Ensure high availability, performance and resilience through monitoring, capacity planning, failover configurations and disaster recovery testing.
• Secure integrations with TLS/SSL, token and certificate management, channel authentication and access controls.
• Manage IBM MQ MFT for automated, auditable and encrypted file exchanges with internal systems and external counterparties.
• Perform root cause analysis, incident resolution and performance tuning, and take part in 24/7 on-call support.
• Automate routine operations with scripts or tools such as Ansible, Shell, Python or Perl, and follow change, release and configuration management processes.

Required profile

• Degree in Computer Science, Engineering or a related technical field, with continuous professional development in integration technologies.
• 8+ years administering distributed IBM MQ infrastructure (configuration, queue managers, clustering, high availability, disaster recovery, performance tuning).
• 6+ years designing and implementing integration solutions with IBM ACE on Linux, including message flows, ESQL/XSLT/XML/JSON transformations and REST/SOAP web services.
• In-depth knowledge of IBM MQ MFT and strong understanding of EAI/SOA principles and resilient messaging architectures.
• Proven security hardening expertise (SSL/TLS, certificates, authentication, encryption, access control) and incident management skills.
• Fluent English (C1) and willingness to join 24x7 rotational on-call support.

Required skills

• IBM MQ and IBM App Connect Enterprise (ACE)
• Scripting with Shell, Perl, Python and automation with Ansible
• MQSC, RFH2Util, MQEdit, QLOAD and monitoring platforms
• Backup/recovery, failover and disaster recovery
• IBM MQ or ACE certification highly desirable