L2 Application Support Engineer (Integration & Middleware)

Job Description: Job Title: L2 Application Support Engineer (Integration & Middleware) Core Stack: IBM CP4I (ACE, MQ, API Connect), Spring Boot, Red Hat OpenShift. 1. Role Objective The Integration Support is responsible for the health and reliability of the enterprise middleware layer. the L2 engineers to manage complex data flows between systems, ensuring that Spring Boot services and IBM CP4I components (MQ, ACE, APIC) are performant, secure, and highly available. 2. Strategic Technical Leadership - End-to-End Traceability: 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 OpenShift, ensuring optimal resource (CPU/Memory) allocation 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 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 (DataPower) 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. 4. Technical Skill Set - Integration Platforms: Mastery of IBM CP4I (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 OpenShift 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. 5. Qualifications - Experience: 5+ years in Middleware or Integration Support - Currently residing in KSA - Complex Problem Solving: Ability to debug asynchronous communication patterns and distributed transactions. - Education: Bachelor’s degree in Computer Science, Software Engineering, or a related field. - Certifications (Preferred): IBM Cloud Pak for Integration Specialist, Red Hat Certified Specialist in OpenShift Administration. 6. Key Performance Indicators (KPIs) - Integration Uptime: Achieving 99.99% availability for critical middleware components. - L2 Resolution Rate: Maximizing the number of integration issues resolved without escalation to L3 Engineering. - MTTR: Reducing the time taken to identify and fix failures in the message delivery pipeline. At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive. Recruitment fraud is a scheme in which fictitious job opportunities are offered to job seekers typically through online services, such as false websites, or through unsolicited emails claiming to be from the company. These emails may request recipients to provide personal information or to make payments as part of their illegitimate recruiting process. DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf. More information on employment scams is available here.

5+ years in Middleware or Integration Support; Currently residing in KSA; Complex Problem Solving: Ability to debug asynchronous communication patterns and distributed transactions; Education: Bachelor’s degree in Computer Science, Software Engineering, or a related field; Certifications (Preferred): IBM Cloud Pak for Integration Specialist, Red Hat Certified Specialist in OpenShift Administration.

Troubleshoot and manage IBM Cloud Pak for Integration components (ACE, MQ, API Connect) including message flows, adapters, queue management, and API definitions; Support backend Spring Boot microservices with focus on performance, connectivity, and fault tolerance; Monitor and optimize integration platform on Red Hat OpenShift; Conduct end-to-end tracing of transactions across API Gateway, ACE/ESB, and backend services; Perform root cause analysis for middleware failures (e.g., MQ message losses, ACE synchronization issues, JVM issues); ensure security (mTLS, OAuth2, JWE/JWS) within the integration layer; utilize log aggregation tools (ELK/Splunk) to correlate distributed logs; collaborate across teams to maintain 99.99% uptime and reduce MTTR.