> Markdown version of [/jobs/ext/2187434-system-administrator-senior](https://www.wearedevelopers.com/jobs/ext/2187434-system-administrator-senior). 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). --- # System Administrator, Senior - **Company:** Booz Allen Hamilton Inc. - **Location:** Laurel, MD, United States - **Experience:** Expert - **Salary:** $77,600.0 - $176,000.0 - **Contract:** Permanent contract - **Skills:** Proxmox, Amazon Web Services, Linux, Domain Name System (DNS), Python (Programming Language), Network Administration, Windows PowerShell, Red Hat Enterprise Linux, Ansible, VMware Infrastructure, Firewalls (Computer Science), Git, Puppet, Terraform - **Published:** August 22, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9095159/system-administrator-senior ## About the Role * 3+ years of experience with Red Hat Enterprise Linux or Rocky * 3+ years of experience with Proxmox * Experience with Git * Experience managing systems using Infrastructure-as-Code technologies, including Salt, Ansible, Puppet, PowerShell, Chef, or Terraform * Knowledge of Linux firewalls, Linux RPMs, networking configuration, and DNS * TS/SCI clearance with a polygraph * Bachelor's degree in a CS or IT field and 5+ years of experience with systems or network administration, or 10+ years of experience with systems or network administration in lieu of degree * Ability to obtain a DoD 8570.1 IAT Level II Compliant Certification within 60 days of start date Nice If You Have: * Experience with AWS * Experience with virtual infrastructure migrations * Experience with Python * Knowledge of bi-directional network transfer systems * DoD 8570.1 IAT Level II Compliant Certification ## Description As a technical leader, you'll identify new opportunities to modernize the network to help your customers meet their needs. Join our team and solve daily challenges as we improve enterprise cross domain services for our clients. ## Related Videos - [My journey into DevOps world - How it all started!](https://www.wearedevelopers.com/videos/545-my-journey-into-devops-world-how-it-all-started) - [Automate everything via NodeJS and Puppeteer](https://www.wearedevelopers.com/videos/322-automate-everything-via-nodejs-and-puppeteer) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Embracing the Hybrid Cloud: Unlocking Success with Ansible](https://www.wearedevelopers.com/videos/932-embracing-the-hybrid-cloud-unlocking-success-with-ansible) - [The Memory Leak That Ate Our Cluster: A Postmortem](https://www.wearedevelopers.com/videos/2057-the-memory-leak-that-ate-our-cluster-a-postmortem) ## Related Articles - [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) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [DevOps Engineer Salary [2023]](https://www.wearedevelopers.com/magazine/203-devops-engineer-salary-2023) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer)