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# Senior System Administrator

- **Company:** ASEC Inc
- **Location:** Fallon, NV, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Domain Controllers, Software Applications, User Authentication, CompTIA Security+, Cyber Security, Linux, Domain Name System (DNS), Windows Servers, Windows PowerShell, Red Hat Enterprise Linux, Software Engineering, Information Technology, Vcenter, Operating System Security, Vulnerability Analysis, Vmware
- **Published:** August 1, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9069446/senior-system-administrator

## About the Role

What You'll Bring:

 * CompTIA Security + is required. Master's degree in Information Technology, Cybersecurity, Computer Science, or related area of study, desired. The following certifications are highly desired: CCNP, CISSP, CASP+, etc. Please upload copies of any relevant IT certifications you hold.
 * Candidate must hold at least one of the following certifications: Microsoft Certified Solutions Associate - Windows Server 2016 (or later), Red Hat Certified System Administrator, or VMware Certified Professional.
 * 7 years of related system administration experience is preferred.
 * Strong working knowledge of vCenter/VMware is required.
 * Proficiency with Windows operating systems is required; experience with Linux is a plus.
 * Experience managing DoD Host Based Security Systems (HBSS) is preferred.
 * Demonstrated experience managing Domain Name System (DNS) performance and reliability.
 * Proven experience implementing and maintaining local and group policies.
 * Hands-on experience with Microsoft Active Directory (AD) domain controller servers for managing authentication, authorization, and network resources.
 * Knowledge of log aggregation and analysis across multiple sources.
 * Familiarity with Windows PowerShell is preferred.

Equally Important:

 * Ability to build positive, collaborative relationships across teams and with external partners.
 * Effective communicator with strong verbal and written skills.
 * Proactive, self-directed work style with the ability to operate independently.
 * Analytical thinker with proven problem-solving capabilities.
 * Highly organized, with the ability to balance competing priorities in a fast-paced environment.

## Description

* Plan, test, and implement system upgrades to ensure optimal performance and reliability.
 * Support RMF and ATO activities, including vulnerability scanning (ACAS, Evaluate STIG) and development of accreditation artifacts.
 * Integrate new software applications within complex, mission-critical environments.
 * Apply and maintain operating system security configurations in alignment with DISA STIG requirements.
 * Identify and resolve system flaws, implementing technical controls to strengthen cybersecurity.
 * Conduct vulnerability scans and assessments to safeguard systems from potential threats.
 * Troubleshoot and resolve software issues within integrated environments to maintain seamless operations.
 * Ensure compliance with DoD RMF, FISMA, NIST 800-53, and DoD SRG requirements.

This description outlines the general nature and scope of the role. Additional duties may be assigned as necessary.


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