L2 Application Support Engineer (Integration & Middleware)

Job description

Job Description: L2 Application Support Engineer (Integration and Middleware) Core Stack: IBM CP4I (ACE, MQ, API Connect), Spring Boot, Red Hat OpenShift. 1. Role Objective Integration Support is responsible for the health and reliability of an organization's middleware layer. L2 engineers manage complex data flows between systems, ensuring that Spring Boot services and IBM CP4I components (MQ, ACE, APIC) are high-performance, secure, and highly available. 2. Strategic Technical Leadership • End-to-end traceability: Track transaction flows from API Connect gateway via Enterprise Service Bus (ACE) to back-end microservices (Spring Boot). • Root Cause Analysis (RCA): Spearhead deep investigations into middleware failures, such as message loss in MQ, synchronization errors in ACE, or JVM crash in Spring Boot. • Platform Management: Oversees the stability of integration components running on Red Hat OpenShift, ensuring optimal resource allocation (CPU/memory) and pod scaling. • Security Enforcement: Manage and troubleshoot security protocols, including Mutual TLS (mTLS), OAuth2, and JWE/JWS within the integration layer. 3. Detailed technical responsibilities a. IBM Cloud Pak for Integration (CP4I) • App Connect Enterprise (ACE): Troubleshoot message flows, ESQL logic errors, and adapter (SAP, database, file) connectivity issues. • IBM MQ: Manage queue managers, resolve channel retries, check dead character queues or message persistence issues. • API Connect: Resolve issues related to API definitions, security policies, and gateway response time (DataPower). Back-end Microservices (Spring Boot) • Performance Tuning: Analyze JVM thread dumps and heap dumps to solve the problem of memory leaks or high CPU usage in microservices. • Connectivity Debugging: Troubleshooting Spring Boot integration with databases (JPA/Hibernate) and external messaging systems (JMS/Kafka). • Log Aggregation: Use ELK/Splunk to correlate logs across multiple microservices to identify points of failure in a distributed architecture. • Integration Platforms: Proficiency in IBM CP4I (specifically ACE, MQ, and API Connect). • Protocols and Standards: Expert understanding of REST, SOAP, JSON, XML, AMQP and MQTT. 5. Qualifications • Currently residing in Saudi Arabia 6. Key Performance Indicators (KPIs) • Integration Uptime: Achieves 99.99% availability for critical middleware components. • L2 resolution rate: Increase the number of integration issues resolved without escalating to L3 architecture. • MTTR: Reduce the time it takes to identify and fix failures in the message delivery path. At the employer, we believe strong connections and community are the key to our success. Our business model prioritizes personal collaboration while offering flexibility to support well-being, productivity, and individual working styles and life circumstances. We are committed to fostering an inclusive environment where everyone can thrive. Employment fraud is a scheme in which job seekers are offered fictitious job opportunities usually through online services, such as phony websites, or from Through unsolicited emails claiming to be from the company. These emails may ask recipients to provide personal information or make payments as part of the illegal recruitment process. DXC does not make social media recruitment offers and DXC never solicits any money or payments from applicants at any stage of the recruitment process, nor does it ask a job seeker to purchase information technology or other equipment on our behalf. More information about employment scams is available here

Requirements

• Proficiency in IBM CP4I (specifically ACE, MQ, and API Connect)
• Expert understanding of REST, SOAP, JSON, XML, AMQP and MQTT
• Currently residing in Saudi Arabia

Skills