Middleware Engineer

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 Data Power, API Connect, and Business Automation Workflow (BAW).
- Support enterprise integration patterns and service orchestration across multiple systems.

Platform & Environment Management

- Configure, administer, and support IBM Web Sphere Application Server (WAS) and Web Sphere 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.

Dev Ops & Deployment

- Containerise middleware services using Docker.
- Manage builds, deployments, and releases using Azure Dev Ops CI/CD pipelines.
- Collaborate with Dev Ops 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