Senior Application Support Engineer (Integration & Middleware)

DXC Technology; Saudi Arabia; On-site; SAR 150,000 - 210,000; Full time

Job summary

DXC Technology in Saudi Arabia seeks an L2 Application Support Engineer to ensure the health of the integration middleware. You will manage IBM CP4I components, API Connect, and Spring Boot services with a focus on performance and security.

The role requires 5+ years in middleware, strong RCA skills, and a Bachelor’s in CS/Engineering. Expect collaboration with platform and security teams in a complex enterprise environment.

Qualifications

• 5+ years in Middleware or Integration Support or similar role.
• Currently based in Saudi Arabia (KSA) or willing to relocate.
• Strong debugging and RCA skills for distributed systems.
• Bachelors in CS/Software Eng or equivalent field.

Responsibilities

• Provide L2 support for IBM CP4I components and Spring Boot services.
• Ensure health, performance and high availability of middleware layer.
• Diagnose problems across API gateway, ESB, and backend services.
• Collaborate with security and platform teams to implement best practices.

Skills

Java & Spring Boot

Middleware/Integration

CP4I/ACE/MQ/API Connect

OpenShift/Kubernetes

REST/SOAP/XML/JSON

Monitoring tools

Education

Bachelor's degree in Computer Science / Software Engineering

Tools

IBM CP4I

ACE

MQ

API Connect

Red Hat OpenShift

Kubernetes

Instana/Dynatrace/Prometheus/Grafana

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.