Linux & Middleware Systems Engineer (Hybrid)

Diversity Nexus; Mason (OH); Hybrid; USD 110,000 - 150,000; Full time

Benefits offered by this job

Hybrid schedule

On-site Mason OH

Job summary

Diversity Nexus is seeking an experienced Linux & Middleware Administrator to manage enterprise Linux environments and Java-based apps in a hybrid Mason, OH environment. You will support RHEL, JBoss EAP, Apache HTTP Server, NGINX, and Docker, handling deployments, configurations, certificates, logs, and performance tuning.

You will troubleshoot JVM and application issues, coordinate with DevOps, Network, and Security teams, and contribute to building robust, scalable middleware platforms across

Qualifications

• 5+ years of Linux systems administration or enterprise infrastructure experience.
• Strong hands-on experience with RHEL or comparable Linux distributions.
• Experience administering and troubleshooting Apache HTTP Server and Red Hat JBoss EAP.
• Working knowledge of Java/Jakarta EE applications and JVM troubleshooting.
• Experience supporting application builds, deployments, and production environments.
• Understanding of Git, CI/CD pipelines, and automated deployment processes.

Responsibilities

• Administer, maintain, patch, monitor, and troubleshoot Linux servers, preferably RHEL.
• Install, configure, and support Apache HTTP Server, NGINX, Docker, and Red Hat JBoss EAP.
• Manage JBoss configurations, JVM settings, application deployments, data sources, certificates, logging, and clustering.
• Analyze system and application logs to identify performance and connectivity issues.
• Support SSL/TLS certificates, keystores, and truststores.
• Troubleshoot Java/Jakarta EE applications by reviewing application logs, stack traces, configuration files, and basic Java code.
• Diagnose JVM memory, thread, garbage collection, connection pool, and application dependency issues.
• Collaborate with development teams to resolve application and middleware-related problems.
• Build and deploy applications across development, testing, and production environments.

Skills

Linux admin

RHEL

JBoss EAP

Apache HTTP

NGINX

Java/Jakarta EE

Docker

Git CI/CD

Networking basics

Troubleshooting

Tools

GitLab

Jenkins

Ansible

Job description

Diversity Nexus is seeking an experienced Linux & Middleware Administrator to manage enterprise Linux environments and Java-based apps in a hybrid Mason, OH environment. You will support RHEL, JBoss EAP, Apache HTTP Server, NGINX, and Docker, handling deployments, configurations, certificates, logs, and performance tuning.

You will troubleshoot JVM and application issues, coordinate with DevOps, Network, and Security teams, and contribute to building robust, scalable middleware platforms across