Overview

We are seeking an experienced Middleware Engineer with 5+ years’ hands-on experience designing, building, integrating, and supporting enterprise middleware solutions.

The role focuses on Java-based middleware and API platforms within a Linux/Unix environment, supporting integration, orchestration, and high-availability services across enterprise systems.

The successful candidate will be technically strong, integration-focused, and comfortable working across development, operations, and delivery teams.

Key Responsibilities

Middleware Development & Integration

• Design, develop, and maintain middleware services using Java and Spring Boot.

• Build and expose services using REST and SOAP APIs, ensuring secure, scalable integrations.

• Integrate middleware components with IBM DataPower, APIConnect, and Business Automation Workflow (BAW).

• Support enterprise integration patterns and service orchestration across multiple systems.

Platform & Environment Management

• Configure, administer, and support IBM WebSphere Application Server (WAS) and WebSphere Liberty Profile (WLP).

• Ensure middleware services operate reliably within Linux/Unix environments, with a focus on performance and stability.

• Monitor and maintain high availability, resilience, and scalability of middleware applications.

DevOps & Deployment

• Containerise middleware services using Docker.

• Manage builds, deployments, and releases using Azure DevOps CI/CD pipelines.

• Collaborate with DevOps teams to improve automation, deployment consistency, and release quality.

Data & Operational Support

• Support middleware interactions with SQL Server, including performance considerations and basic database optimisation.

• Diagnose, troubleshoot, and resolve middleware-related incidents and defects.

• Participate in root-cause analysis and continuous improvement initiatives.

Documentation & Collaboration

• Maintain clear technical documentation, diagrams, and runbooks using Confluence.

• Track work, defects, and enhancements using Jira.

• Collaborate closely with developers, architects, testers, and business stakeholders.

Required Skills & Experience

Essential Experience

• 5+ years’ experience in middleware development and/or support roles.

• Strong hands-on experience with:

  • Java, Spring Boot

  • REST and SOAP APIs

  • JSON

• Proven experience with:

  • IBM WebSphere Application Server (WAS)

  • WebSphere Liberty Profile (WLP)

  • Linux/Unix environments

Integration & Platform Skills

• Experience integrating with:

  • IBM DataPower

  • IBM APIConnect

  • Business Automation Workflow (BAW)

• Working knowledge of SQL Server in an application integration context.

DevOps & Tooling

• Practical experience using Docker for containerisation.

• Experience with Azure DevOps, including CI/CD pipelines.

• Familiarity with Jira and Confluence for delivery tracking and documentation.

Personal Attributes

• Strong analytical and problem-solving skills.

• Able to work independently while collaborating effectively within cross-functional teams.

• Clear communicator, capable of explaining technical concepts to non-technical stakeholders.