Mahesh Kumar Tummala

• Developed and deployed integration flows using IBM App Connect Enterprise
(ACE) on CP4I to integrate REST, SOAP, MQ, JDBC, and cloud applications.
• Leading integration delivery across 100+ banking integration applications using
IBM ACE, API Connect, MQ, and DataPower.
• Designed and implemented high-performance message flows, reducing average
response time by 40%.
• Performed deployment of BAR files on CP4I using DevOps pipelines with Git.
• Troubleshot integration failures using ACE logs, pod logs, trace nodes, and
OpenShift console.
• Worked with Operators on OpenShift for managing CP4I components like ACE
and APIC.
• Led modernization program migrating legacy IIB applications to ACE v12 with
containerization readiness.
• Implemented secure REST and SOAP APIs using IBM API Connect with OAuth2,
JWT, and TLS-based security.
• Introduced proactive monitoring & performance tuning reducing incident volume
by 30%.
• Collaborated with architects & business teams to deliver scalable integration
solutions.
• Mentored a team of 6 Integration Engineers on ACE, MQ, and APIC best practices.

• Developed & enhanced IIB/ACE message flows for core banking services:
payments, KYC, cards, loans.
• Built reusable frameworks for logging, exception handling, monitoring, and
message replay.
• Implemented asynchronous messaging using IBM MQ for reliable & decoupled
communication.
• Performed RCA & resolved high-priority production issues ensuring high
availability.
• Automated deployments using Jenkins + UrbanCode Deploy reducing deployment
efforts by 50%.
• Developed ESB integration services, maintained MQ objects, and implemented
transformations using ESQL, JavaCompute, and XSLT.
• Led SIT, UAT, go-live cutovers and hyper-care support.