Day Rate: £416 per dayContract Type: Inside IR35Canary Wharf, London (3 days onsite per week)IBM Integration Bus/ACE Developer Prestigious Investment Bank - Canary Wharf, London Contract Type: Inside IR35 Day Rate: £416 per day Location: Canary Wharf, London (3 days onsite per week) Duration: 6-12 months (with potential extension)This is an excellent opportunity to work on critical payment and messaging systems within a fast-paced, enterprise-level financial services environment. you''ll be working on high-volume transaction processing systems, supporting the banks global operations and ensuring seamless integration across multiple platforms and services. What you''ll Be Doing Developing and maintaining integration solutions using IBM Integration Bus v9+ or App Connect Enterprise (ACE 12) Building and deploying message flows using various node types including Compute, SOAP, HTTP, Routing, Mapping, and Database nodes Working with IBM MQ and MQFTE to facilitate reliable messaging across the estate Creating and maintaining message sets and message definitions using XML, MRM, and TDS formats Supporting API integrations via API Connect or Azure API Management Writing and maintaining scripts in ESQL, Java, Korn Shell, PERL, and SQL Collaborating with business stakeholders, operations teams, and vendors to deliver robust solutions Participating in change control processes and supporting production incidents when required What We are Looking For Essential Skills Strong hands-on ex