Sr Systems Security Engineer / Sr. Core Applications Administrator

Responsibilities

Application Administration — Backend & Frontend

• Manage the full application lifecycle for critical engineering and DevOps platform applications — installation, configuration, patching, version upgrades, and retirement across RHEL/Linux environments.

• Administer backend application server infrastructure including Apache Tomcat, JBoss/WildFly, or equivalent Java EE application servers — including heap tuning, connection pool management, and log configuration.

• Manage frontend application delivery including web server configuration (Apache HTTPD, Nginx), reverse proxy setup, SSL/TLS certificate management, and load balancer integration.

• Develop and maintain application configuration baselines — version-controlled configuration files, environment-specific parameter management, and configuration drift detection.

• Execute application patching and update cycles in alignment...