IBM Java Middleware Developer- Remote

IBM Java / Middleware Developer

Key Responsibilities

• Design and develop end-to-end integration solutions across enterprise systems using IBM middleware stack
• Build scalable microservices using Java (Spring Boot / JEE) aligned with domain-driven design
• Develop, deploy, and maintain integration flows in IBM ACE / IIB (message flows, subflows, libraries)
• Implement complex ESQL logic, Java Compute Nodes, and message transformations
• Configure and manage IBM MQ infrastructure (queues, channels, clusters, DLQ handling)
• Design and publish secure APIs using IBM API Connect (APIC) including product definition and lifecycle management
• Configure IBM DataPower Gateway for security enforcement, routing, and protocol mediation
• Implement synchronous and asynchronous integration patterns (request-reply, pub-sub, event-driven)
• Develop event-driven architectures using Kafka / messaging platforms
• Perform data transformation and mapping using XML, JSON, XSLT, DFDL, and mapping nodes
• Integrate with ERP, CRM, legacy systems, databases, and third-party APIs
• Implement security frameworks (OAuth2, JWT, SSL/TLS, mTLS, SAML, LDAP integration)
• Automate build and deployment using CI/CD pipelines (Jenkins, GitLab, Azure DevOps)
• Containerize applications and integrations using Docker, Kubernetes, OpenShift
• Perform performance tuning, memory optimization, and latency reduction across middleware layers
• Monitor systems using logging, tracing, and monitoring tools (ELK, Prometheus, Grafana)
• Troubleshoot complex production issues across distributed integration environments
• Ensure high availability, failover, disaster recovery (HA/DR) architecture compliance
• Collaborate with enterprise architects, DevOps, infrastructure, and security teams
• Document technical designs, integration patterns, and operational procedures

Key Requirements

• 6–10+ years of strong experience in Java and enterprise middleware development
• Expertise in Java (Spring Boot, Spring Cloud, J2EE, REST services)
• Deep hands-on experience in IBM ACE / IIB (ESQL, message models, subflows, DFDL, parsers)
• Strong working knowledge of IBM MQ (queue manager setup, clustering, channels, security)
• Hands-on experience with IBM API Connect (APIC) (API design, gateway policies, lifecycle)
• Experience with IBM DataPower Gateway (MPGW, WSP, AAA policies, security configurations)
• Strong understanding of integration patterns (EIP, pub-sub, event streaming, request-response)
• Expertise in data transformation technologies (XML, JSON, XSLT, DFDL, XPath)
• Experience with event streaming platforms like Kafka or equivalent
• Hands-on experience with DevOps practices and CI/CD pipelines
• Familiarity with containerization and orchestration (Docker, Kubernetes, OpenShift)
• Experience in cloud-native integration architectures (AWS / Azure)
• Strong understanding of networking concepts (HTTP/S, TCP/IP, SSL, Load Balancing)
• Knowledge of API security standards (OAuth2, OpenID Connect, JWT, SAML)
• Experience with monitoring, logging, and observability tools
• Strong debugging and root cause analysis skills in complex environments
• Nice to Have
• Experience in banking / telecom / large enterprise integration landscapes
• Exposure to service mesh (Istio) and API gateway patterns
• Knowledge of Agile / Scrum delivery models
• IBM certifications in ACE / MQ / APIC / DataPower