Systems Administrator

TENAX Technologies is seeking a Systems Administrator to support mission-critical Navy programs in the Washington, DC area. The selected candidate will administer, maintain, and secure enterprise infrastructure across on-premises, hybrid, and AWS cloud environments. This position supports critical systems and applications that enable Department of Defense (DoD) and Intelligence Community (IC) missions., * Administer and maintain Windows, Linux, and UNIX-based servers and enterprise systems.

• Manage AWS cloud infrastructure, services, networking, and security.
• Monitor system performance, perform troubleshooting, and resolve server, storage, network, and application issues.
• Implement security patches, system hardening, and DISA STIG compliance.
• Support system modernization, migrations, upgrades, and cloud initiatives.
• Ensure system availability, integrity, confidentiality, and compliance with cybersecurity requirements.
• Maintain technical documentation and support operational and maintenance activities.

• U.S. Citizen.
• Active Top Secret (TS) clearance with eligibility for TS/SCI.
• Current DoD 8570/8140 IAT Level II or IAT Level III certification (Security+, CySA+, SSCP, CND, GSEC, CISSP, CASP+/SecurityX, GCIH, or equivalent).
• Minimum 3 years of experience administering enterprise systems and networks.
• Experience supporting Linux (RHEL, Ubuntu, or similar) and Windows environments.
• Experience administering and supporting AWS cloud environments.
• Experience with system monitoring, patch management, configuration management, and performance tuning.
• Experience implementing DISA STIGs and cybersecurity compliance requirements.
• Strong troubleshooting skills across servers, networks, storage, and applications., * Bachelor’s degree in Computer Science, Information Technology, Systems Engineering, or related field.
• 5+ years of Systems Administration and/or Network Administration experience.
• AWS certification (Cloud Practitioner, Solutions Architect, SysOps Administrator, or equivalent).
• Linux certification (RHCSA, RHCE, Linux+, or equivalent).
• CCNP or equivalent networking certification.
• Experience supporting DoD, Navy, Intelligence Community, or Federal Government environments.
• Knowledge of virtualization, enterprise storage, backup and recovery solutions, and hybrid cloud architectures.

At TENAX Technologies, you’ll support mission-critical national security programs while working with modern technologies across cloud, cybersecurity, and enterprise infrastructure environments. You’ll collaborate with experienced professionals in a dynamic team focused on innovation, operational excellence, and mission success. We are committed to investing in our employees through professional development, technical training, and opportunities for career growth and advancement.