Sr Systems Security Engineer / Sr. Core Applications Administrator

Responsibilities

• • Manage the full application lifecycle for critical engineering and DevOps platform applications.
  • Manage backend application server infrastructure including Apache Tomcat, JBoss/WildFly, or equivalent Java EE application servers.
  • Manage frontend application delivery including web server configuration (Apache HTTPD, Nginx).
  • Develop and maintain application configuration baselines.
  • Maintain application licensing compliance.
• RHEL / Linux Systems Administration
  • Administer Red Hat Enterprise Linux (RHEL) and/or CentOS/Rocky Linux environments.
  • Implement and maintain RHEL DISA STIG hardening.
  • Perform Linux performance tuning for application workloads.
  • Develop shell scripts for routine administration tasks.
  • Manage LDAP/Active Directory integration for Linux-hosted applications.
• JFrog / Artifactory Administration
  • Install, configure, and administer JFrog Artifactory.
  • Manage artifact lifecycle policies.
  • Implement and maintain software supply chain security controls in Artifactory.
  • Manage Artifactory high availability configurations.
• GitLab / GitHub Administration
  • Administer GitLab self-managed or GitLab.com instances.
  • Administer GitHub Enterprise or GitHub.com organization settings.
  • Implement GitLab/GitHub security hardening.
  • Support migration and consolidation of repositories.
• 3DEXPERIENCE (3DX) Platform Administration
  • Maintain and administer the Dassault Systemes 3DEXPERIENCE (3DX) platform.
  • Ensure 3DX data continuity and model integrity.
  • Manage 3DX platform upgrades, hotfix application, and patch management.
  • Support ATO/RMF activities for 3DX.
• Cameo Systems Modeler Administration
  • Configure and optimize Cameo Systems Modeler (No Magic / Dassault Systemes).
  • Manage Cameo Teamwork Cloud — projects, user access, branching and merging workflows, and model backup and restoration procedures.
  • Manage Cameo license server configuration.
  • Support Cameo version upgrades and migration of model repositories.
  • Provide Tier 2/3 technical support for Cameo modeling environment issues.
• Jama Connect / TWC Requirements Management Administration
  • Administer Jama Connect requirements management platform.
  • Manage Jama Connect upgrades, patches, and backup/restore procedures.
  • Administer Teamcenter Workflow and Configuration (TWC) components.
  • Maintain Jama and Teamcenter API configurations and integration middleware.
  • Support program requirements traceability audits.
• Integration Troubleshooting & Interoperability
  • Serve as the primary technical escalation point for interoperability issues.
  • Develop and maintain integration architecture documentation.
  • Implement integration monitoring and alerting.
  • Manage middleware and integration platform components.
  • Coordinate integration testing.
  • Maintain integration runbooks and escalation procedures.
• Security, Compliance & Change Management
  • Apply and maintain DISA STIG hardening for all administered platforms.
  • Manage SSL/TLS certificate lifecycle.
  • Implement role-based access control (RBAC).

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related field.
• Minimum 5 years of relevant experience in systems administration, DevOps, or similar roles.
• Proven experience with Red Hat Enterprise Linux (RHEL), CentOS, and Rocky Linux.
• Experience with JBoss/WildFly, Apache Tomcat, and other Java EE application servers.
• Strong understanding of Linux system services, startup configurations, and file system management.
• Experience with JFrog Artifactory, GitLab, GitHub, and other DevOps tools.
• Knowledge of Dassault Systemes 3DEXPERIENCE (3DX) platform and Cameo Systems Modeler.
• Experience with Cameo Teamwork Cloud and Cameo Systems Modeler administration.
• Experience with Jama Connect, Teamcenter, and other requirements management tools.
• Experience with integration architecture, data flow diagrams, API dependency maps, and authentication chain documentation.
• Experience with DISA STIG hardening and SSL/TLS certificate management.
• Strong problem-solving and troubleshooting skills.
• Excellent written and verbal communication skills.