> Markdown version of [/jobs/ext/1408216-senior-linux-administrator-top-secret-sci-clearance](https://www.wearedevelopers.com/jobs/ext/1408216-senior-linux-administrator-top-secret-sci-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 Linux Administrator (Top Secret/SCI Clearance )

- **Company:** Inflow, LLC
- **Location:** Huntsville, AL, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Bash Shell, Cyber Security, Data Centers, Extract Transform Load (ETL), Linux, Distributed Systems, General Parallel File Systems, InfiniBand, Python (Programming Language), Kernel-Based Virtual Machine, Linux System Administration, Red Hat Enterprise Linux, Ansible, SAP (Applications), Supercomputing, Virtualization Technology, Selinux, Kubernetes, Information Technology, Slurm, Nutanix, Firewall Services Module, Docker, Vmware
- **Published:** July 23, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9049643/senior-linux-administrator-top-secretsci-clearance

## About the Role

* Bachelor's degree in Computer Science, Math, Engineering, Physics, or STEM
 * Ability and willingness to obtain and maintain Special Access Program (SAP) eligibility
 * Deep-tier professional experience in Linux systems engineering (RHEL/ /Rocky preferred)
 * Active DoD 8570.01-M baseline certification (Security+ CE, SSCP, or equivalent)
 * Active DoD Top Secret Clearance with eligibility for SCI and a CI Scope Polygraph within 180 days of hire

The following is preferred:

 * Supercomputing Experience: Direct experience tuning kernel parameters and MPI libraries for large-scale distributed computing
 * Hybrid Virtualization: Expertise in VMware, Nutanix, or KVM within a heterogeneous environment that include Windows integration
 * Advanced Certification: RHCE, RHCSA, or similar

## Description

Who will I be working with? In support of Inflow's contract with the Government, you will be working alongside Government civilians and other Government contractors.

What level Clearance do I need? You must possess an active DoD Top Secret clearance, with eligibility for SCI and a CI Scope Polygraph within 180 days.

What will I be doing? Using your expertise in Linux administration, you will be providing support for critical missions, ensuring that data stays fast, fluid, and impenetrable. In addition, you will:

 * Lead the design and lifecycle management of mission-critical Linux workstations, enterprise-grade servers, and high-performance computing (HPC) clusters.
 * Treat the data center as a codebase. Develop sophisticated automation workflows using Python, Bash, and Ansible to eliminate manual toil and ensure drift-free configurations.
 * Modernize scientific workflows by deploying and managing isolated environments using Podman while working to establish a Kubernetes environment.
 * Configure and optimize high-bandwidth networking, including InfiniBand fabrics, for seamless inter-node communication.
 * Author high-fidelity playbooks and strategic architectural diagrams that serve as the blueprint for our evolving infrastructure.
 * Push the limits of the silicon. Optimize cluster scheduling and management utilizing industry-leading tools like Bright Cluster Manager and Slurm.
 * Implement "Hardened by Design" security. Fine-tune SELinux policies and advanced firewall configurations to protect sensitive data without sacrificing computational performance.
 * Master the art of data movement. Administer complex local and distributed filesystems (Lustre, GPFS/Spectrum Scale) to ensure extreme-speed access across the fabric.
 * Other duties as assigned


## Related Videos

- [Running Secure Life Science Research at Scale using Hybrid GPU HPC and Kubernetes 🧬](https://www.wearedevelopers.com/videos/100355-running-secure-life-science-research-at-scale-using-hybrid-gpu-hpc-and-kubernetes)
- [Hacking MSSQL on Cloud. All of them. How I became sysadmin on Azure, AWS, GCP and Alibaba.](https://www.wearedevelopers.com/videos/100339-hacking-mssql-on-cloud-all-of-them-how-i-became-sysadmin-on-azure-aws-gcp-and-alibaba)
- [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing)
- [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker)
- [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)
- [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics)

## 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)
- [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)
- [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers)
- [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology)
- [System change: restart as developer?](https://www.wearedevelopers.com/magazine/39-system-change-restart-as-developer)