L2 technical support leader (integration & middleware)

Job Description Strategic Technical Leadership End-to-End Traceability: Lead the team in tracing transaction flows from the API Gateway (API Connect) through the Enterprise Service Bus (ACE) to the backend Microservices (Spring Boot). Root Cause Analysis (RCA): Spearhead deep-dive investigations into middleware failures, such as message losses in MQ, synchronization errors in ACE, or JVM crashes in Spring Boot. Platform Governance: Oversee the stability of integration components running on Red Hat Open Shift , ensuring optimal resource (CPU/Memory) allocation and pod scaling. Security Enforcement: Manage and troubleshoot security protocols, including Mutual TLS (m TLS), OAuth2, and JWE/JWS within the integration layer. Detailed Technical Responsibilities A. IBM Cloud Pak for Integration (CP4 I) App Connect Enterprise (ACE): Troubleshoot message flows, ESQL logic errors, and adapter connectivity issues (SAP, Database, File). IBM MQ: Manage queue managers, resolve channel retries, and investigate dead-letter queues or message persistence issues. API Connect: Resolve issues related to API definitions, security policies, and Gateway (Data Power) latency. B. Backend Microservices (Spring Boot) Performance Tuning: Analyze JVM thread dumps and heap dumps to resolve memory leaks or high CPU utilization in microservices. Connectivity Debugging: Troubleshoot Spring Boot integration with databases (JPA/Hibernate) and external messaging systems (JMS/Kafka). Log Aggregation: Utilize ELK/Splunk to correlate logs across multiple microservices to identify points of failure in a distributed architecture. Technical Skill Set Integration Platforms: Mastery of IBM CP4 I (specifically ACE, MQ, and API Connect). Development Frameworks: Advanced knowledge of Java and Spring Boot (Spring Integration, Spring Cloud). Containerization: Expert-level proficiency in Red Hat Open Shift and Kubernetes. Protocols & Standards: Expert understanding of REST, SOAP, JSON, XML, AMQP, and MQTT. Monitoring Tools: Hands‑on experience with IBM Instana, Dynatrace, or Prometheus/Grafana . #J-18808-Ljbffr