> Markdown version of [/jobs/ext/2283217-senior-systems-administrator-100-onsite-mckinney-texas-must-have-active-secret-clearance](https://www.wearedevelopers.com/jobs/ext/2283217-senior-systems-administrator-100-onsite-mckinney-texas-must-have-active-secret-clearance). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Systems Administrator, 100% onsite, McKinney, Texas, must have active secret clearance - **Company:** RTX - **Location:** McKinney, TX, United States - **Experience:** Expert - **Salary:** $68,900.0 - $131,100.0 - **Contract:** Permanent contract - **Skills:** Active Directory, Application Programming Interfaces (APIs), Backup Devices, Bash Shell, Cyber Security, Dynamic Host Configuration Protocol, Linux, RAID, Domain Name System (DNS), VMware ESX Servers, Hardware Design, System Center Configuration Manager, Windows Servers, NetApp Applications, Windows Domain, Data ONTAP (Server Appliance), Windows PowerShell, Red Hat Enterprise Linux, Ansible, Skype for Business, Microsoft SharePoint, VMware VSphere, Scripting, Data Storage Technologies, High Performance Computing, Virtual Computing, Information Technology, Vcenter, Tenable Nessus, National Industrial Security Program Operating Manual (NISPOM), Splunk, Wsus, Vmware - **Published:** August 28, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3367880865&tx=KJ1919FFG&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role Active and transferable U.S. government issued security clearance is required prior to start date.?, * Typically requires bachelor's and minimum of 2 years of prior relevant experience. * Must have an active and transferable Secret U.S. government issued security clearance is required prior to start date. Must be able to get access to the program after start. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. * Must have Window or Linux experience * Experience in one of the following: Linux/RHEL administration, Active Directory and Windows Domain administration, MECM, VMware, and recovery enterprise suites. Qualifications We Prefer : * Strong leadership, teamwork, communication (written and oral), collaboration, and organizational skills. * Experience with using Information Technology project lifecycle management processes. * An active DoD Top Secret * Experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF * In-depth working experience in Windows Server. * Experience with NetApp ONTAP or other data storage, NAS, and SAN technologies and solutions. * Experience using VMWare vCenter, vSphere, and ESX and/or other virtual computing methods. * Experience supporting engineers in software, simulations, and hardware development. * Experience with Microsoft WSUS, MECM, SharePoint, Skype and/or Exchange * Experience with Tenable Nessus, Splunk, and/or Ivanti Security Controls. * High Performance Computing (HPC) experience in a Linux environment * Scripting Experience in APIs, PowerShell, Bash, and/or Ansible. ## Description * Senior System Administrator, in infrastructure Workplace Services, collaborates with a team to support fast-paced, critical programs with classified information system capabilities. Success in this role means you can develop, implement and maintain secure, cost-efficient environments across various classified programs. Program teams rely on your collaboration and guidance to define computing requirements and create end-to-end solutions to solve complex IT infrastructure problems. * Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment. * Understanding and knowledge of Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods. * Working as a team member in a fast-paced technological environment. Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS). * Understanding of data RAID, data backup uses and technologies. Install and configure software applications requested by end users. * Work with Cybersecurity professionals to maintain security requirements. * Provide documentation and training on advanced IT processes and procedures and other tasks as assigned. * Systems are operational 24x7 and occasionally require work effort beyond standard work hours. * Travel is required to other US Domestic locations as business needs dictate. Frequency at 5%. * 100% onsite position ## Related Videos - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [The Developer Workstation Blind Spot: Why Your Security Stack Can't See What Matters Most](https://www.wearedevelopers.com/videos/100254-the-developer-workstation-blind-spot-why-your-security-stack-can-t-see-what-matters-most) - [Checkmate: 5 Real Incidents That Can End a Software Company](https://www.wearedevelopers.com/videos/100126-checkmate-5-real-incidents-that-can-end-a-software-company) - [Discover the open source trio you didn’t expect: .NET and PostgreSQL on Linux](https://www.wearedevelopers.com/videos/2042-discover-the-open-source-trio-you-didn-t-expect-net-and-postgresql-on-linux) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Top 6 Hackathons for Developers in 2023](https://www.wearedevelopers.com/magazine/263-top-6-hackathons-for-developers-in-2023) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing)