Senior DoD Messaging Systems Admin (AMHS/ECGS)

SHR Consulting Group; Arlington (VA); On-site; USD 100,000 - 150,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Vision coverage

401(k) plan

PTO

Certification support

Life insurance

Disability insurance

Job summary

SHR Consulting Group, LLC is seeking Systems Administrators to operate and maintain the DoD Organizational Messaging enterprise—managing secure message traffic across DoD, U.S. Government agencies, Five Eyes partners, NATO, and U.S.

installations worldwide. You will administer large-scale, geographically clustered messaging platforms such as Telos AMHS and ECGS, ensuring high availability, performing key management, and supporting cross-domain solutions from Pentagon locations.

Qualifications

• DoD messaging platforms experience required or strongly preferred.
• Experience administering clustered, geo-distributed environments.
• Windows or Linux administration in a messaging context.
• Experience with SQL Server and Internet Information Services in messaging apps.
• Familiarity with ACP-126/ACP-128, Plain Language Addresses, routing indicators, and message precedence handling.
• Knowledge of Public Key Infrastructure and cross-domain solution concepts.
• DoD or large enterprise IT experience preferred.

Responsibilities

• Operate and administer large-scale messaging systems to ensure access, search, and management capabilities.
• Administer profile libraries, folders, and controls, including advanced message filtering and limited distribution features.
• Monitor distributed apps, host OS, and network connections to resolve configuration problems.
• Handle message precedence processing and timely responses per procedures.
• Administer ECGS/Mailroom profiles and perform failover between cluster nodes.
• Troubleshoot serial and network ports; use protocol analyzers.
• Provision and test secure connections; manage STE cryptographic keys.
• Provide system administration for Linux components and directory synchronization to CDC servers.
• On-site admin for classified ITS node per NSA processes; escalate as needed.
• Configure ITS to support CAC authentication and TLS; manage protocol conversions.
• Support Syndeo Gateway application and server routing.
• Administer Radiant Mercury CDS per DISA guidance; monitor cross-domain traffic.
• Monitor service queues; coordinate with connected sites.
• Provide monthly IPR reporting by port and total message counts.

Skills

Telos AMHS

ECGS

Cross-domain messaging

Windows Server

Red Hat Linux

SQL Server

PKI / cryptography

Troubleshooting comms

Education

Bachelor of Science in Computer Engineering / Computer Information Systems / Telecommunications / MIS

Tools

Telos AMHS

ECGS

Syndeo Intelligent Gateway

Radiant Mercury CDS

Information Transport Service

Job description

SHR Consulting Group, LLC is seeking Systems Administrators to operate and maintain the DoD Organizational Messaging enterprise—managing secure message traffic across DoD, U.S. Government agencies, Five Eyes partners, NATO, and U.S.

installations worldwide. You will administer large-scale, geographically clustered messaging platforms such as Telos AMHS and ECGS, ensuring high availability, performing key management, and supporting cross-domain solutions from Pentagon locations.