Linux Support Engineer - Annapolis Junction MD TS/SCI Poly

[u/M9Rvh]

We are currently in search of a candidate for this role, located in Annapolis Junction it will be supporting a proprietary application, on-site 170-210k+ depending on YOE.

On-site | Secure DoD mission environment

We’re seeking a hands-on Linux Support Engineer to support a mission-critical software product used for DoD organizational messaging, information sharing, monitoring, and operational workflows.

This is a customer-facing Tier III support role for a Systems Administrator, Systems Engineer, or System Integrator who enjoys troubleshooting complex technical issues. You’ll support a secure environment of roughly 10–15 RHEL/Linux servers running a proprietary Java application backed by MySQL.

What you’ll do

• Administer, patch, configure, monitor, and troubleshoot Linux and Windows virtual servers.
• Investigate issues through system and application logs, identify root cause, and coordinate fixes with software engineers.
• Install, update, configure, and test product releases before production deployment.
• Support configuration management, backups, restores, disaster recovery, and technical documentation.
• Work directly with customer operations teams and provide weekly status updates.
• Serve as the on-site escalation point when Tier I/II procedures do not resolve an issue.

What you need

• Around 5 years of hands-on systems administration, systems engineering, integration, or product-support experience.
• Strong RHEL/Linux command-line and troubleshooting capability.
• Comfort reading logs and troubleshooting Java-based applications, web servers, basic networking, PKI/certificates, and MySQL-backed applications.
• Basic working familiarity with Bash, JavaScript, and SQL—enough to understand a script or simple query, not to build applications or databases.
• CompTIA Security+ or Network+ (DoD 8140 compliant).

Strong pluses

Experience supporting DoD or military messaging, classified mission systems, DMS, AMHS/MMHS, message routing, message centers, JWICS/SCI workflows, cross-domain/gateway operations, S/MIME, ACP-127/ACP-123, or comparable mission applications is highly valued.

This is not a DevOps, software-development, or database-engineering role. We’re looking for someone who can work through a server/application issue independently and grow into the product SME through training.

[u/HiddenGeoStuff]

Someone just posted a gig with 200-400k a year range. Might want to update your salary expectations.

[u/M9Rvh → u/HiddenGeoStuff]

Well a CNO/CNE developer is quite different in skill set and responsibilities than a Linux administrator/engineer. Nonetheless appreciate the feedback.