W2 Hiring | Middleware System Administrator / DevOps Engineer | Remote-USA

Role: Middleware System Administrator / DevOps Engineer

Location: Remote

Duration: 12+ Months

Experience Needed: 14+ Years

Note: The client is looking for a Middleware Engineer with strong JBoss EAP experience who can also work with Azure DevOps for CI/CD pipeline development and management.

Position details

Required Skills: We are seeking an experienced Middleware System Administrator / DevOps Engineer to manage, administer, monitor, and support enterprise middleware platforms built on JBoss EAP and integrated with Azure DevOps for source control, CI/CD, and release automation.

The ideal candidate will bring strong expertise in JBoss administration, deployment automation, performance tuning, troubleshooting, clustering, patching, and operational support, along with hands-on experience designing and supporting Azure DevOps pipelines and release processes.

This role requires close collaboration with infrastructure, application, security, networking, and DevOps teams to ensure high availability, scalability, operational stability, and continuous improvement of middleware and deployment platforms.

Preferred Skills : Middleware & Web Servers Strong expertise in: JBoss EAP 7/8.x Azure DevOps Experience with: JBoss standalone and domain mode administration JBoss clustering and failover Azure DevOps CI/CD setup and administration Azure Repos, branching strategies, pull requests, and branch policies Azure Pipelines for build, test, deployment, and release automation Azure Artifacts and artifact version management Environment approvals, gates, and release controls mod_jk and mod_cluster configurations Application deployment using GUI and CLI Datasource, JVM, and server configuration management

Responsibilities: Platform Installation & Configuration - Provision, install, configure, monitor, and administer JBoss EAP environments across development, QA, staging, and production. Configure and support JBoss clustering and failover for high availability in both standalone and domain modes.

Configure, administer, and troubleshoot integrations with enterprise application components and systems.

Ensure reliable routing, session handling, resiliency, and failover across web and application tiers. Configure and manage Azure DevOps integrations with JBoss for automated application deployment.

Troubleshoot and support mod_jk and mod_cluster integrations with JBoss web servers.

Deployment & Release Operations

- Manage deployment workflows in Azure DevOps, including branching strategies, pull requests, code reviews, release tagging, approvals, and access control.

Configure and support Azure Pipelines, including automated builds, deployments, artifact management, test execution, and environment promotions. Package and deploy enterprise applications (WAR/EAR) to JBoss EAP using GUI and CLI tools.

Execute deployments in standalone and domain mode configurations, including rolling deployments to server groups for high availability.

Perform post-deployment validation activities including smoke testing, log analysis, health checks, and performance and availability verification.

Develop and maintain rollback procedures, deployment runbooks, operational checklists, and release documentation.

Participate in change management, deployment reviews, and post-release stabilization activities.

Operations, Monitoring & Incident Management - Perform day-to-day middleware administration and operational support activities Troubleshoot issues related to authentication, authorization, login failures, web content delivery, web server behavior, and JBoss runtime/application issues Implement proactive monitoring, alerting, and health check mechanisms to minimize production incidents Analyze operational trends and system performance metrics to improve platform reliability Generate operational reports and maintain technical and monitoring documentation Monitor production applications and recommend incident prevention and resolution improvements Patch, Upgrade & Configuration Management Plan, coordinate, and execute JBoss EAP upgrades, fix packs, and patching activities Perform regular OS and middleware patching using automation tools and approved maintenance windows Maintain environment baselines, standards, and configuration documentation Create upgrade and patch implementation plans and coordinate execution across multiple teams Performance Engineering & Troubleshooting

- Perform performance tuning of JVM heap and GC settings, thread pools, datasource connection pools, caching configurations, and web server configurations. Analyze thread dumps, heap dumps, and server logs to identify and resolve performance bottlenecks.

Conduct root cause analysis and implement corrective and preventive actions. Collaborate with development teams to troubleshoot and resolve application performance and stability issues.

Coordinate with vendors and raise support tickets for product-related issues when necessary.

Automation & Scripting - Automate repetitive middleware administration and maintenance tasks to improve operational efficiency and reliability.

Develop and maintain Shell/Bash scripts for health checks, log maintenance, housekeeping, deployments, validation activities, and scheduled operational tasks.

Capacity Planning & Reliability - Monitor system utilization and perform capacity planning for growth and performance stability.

Identify infrastructure bottlenecks and recommend scaling and tuning improvements.

Support resiliency and availability initiatives for enterprise middleware environments.

Collaboration & Documentation - Collaborate closely with infrastructure, security, networking, and application support teams to resolve operational issues.

Maintain detailed technical documentation, operational procedures, and knowledge base articles.

Provide technical guidance and training to support teams where required. Demonstrate ownership, initiative, and the ability to manage competing priorities and operational deadlines.

All your information will be kept confidential according to EEO guidelines.