> Markdown version of [/jobs/ext/2208506-systems-admin-ii-windows-linux-juniper](https://www.wearedevelopers.com/jobs/ext/2208506-systems-admin-ii-windows-linux-juniper). 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). --- # Systems Admin II - Windows/Linux & Juniper - **Company:** NineFX, Inc. - **Location:** Fort Meade, MD, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Client Server Models, Ubuntu (Operating System), Cyber Security, Computer Networks, System Configuration, Dynamic Host Configuration Protocol, Linux, Domain Name System (DNS), Hyper-V, Windows Servers, Windows PowerShell, Syslog, Zabbix, Computer Networking Systems, Juniper, Information Technology, Splunk, Cisco, Fedora - **Published:** August 24, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9096044/systems-admin-ii-windowslinux-juniper ## About the Role * Active TS/SCI with Full Scope Polygraph (must already be held) * IAT Level II certification (Security+ CE, GSEC, CySA+, CCNA Security, or GICSP) * 10+ years System Administrator experience (or 5 additional years in place of degree) * Bachelor's degree in a technical discipline * Windows 11 hardware troubleshooting * Linux experience with Ubuntu and Fedora * Networking experience with Juniper * Windows Server management (DNS, DHCP, AD/GPO, RDS, Hyper V) * PowerShell scripting experience, * Experience with Cisco and Dell networking systems * Ability to perform switch code upgrades (Cisco & Juniper) * Strong Windows/Linux troubleshooting skills * Familiarity with HP Device Manager or similar RMM tools * Experience with Splunk, Zabbix, Syslog ng ## Description Seeking a Level 2 System Administrator to deliver advanced support and optimization across Windows, Linux, and enterprise network infrastructures. This role encompasses Tier 1 and Tier 2 diagnostic operations, complex system troubleshooting, infrastructure configuration and maintenance, and high level escalation management within mission critical environments. Core Responsibilities * Provide support for IT system implementation, troubleshooting, and maintenance * Manage daily configuration and operations of client/server/storage/network systems * Perform Tier 1 & Tier 2 problem identification, diagnosis, and resolution * Monitor day to day operations and resolve issues across all devices (servers, networks, mobile) * Support escalation workflows and communicate status to internal stakeholders * Configure and manage UNIX/Linux and Windows operating systems * Install and troubleshoot OS software; maintain integrity of network components * Optimize system operations; conduct system capacity planning * Provide detailed analysis and feedback for escalated tickets * Support dispatch systems and hardware issues throughout resolution ## Related Videos - [From Code to Motion: Building an Autonomous Hat-Hunting Robot with Kubernetes & ML](https://www.wearedevelopers.com/videos/1609-from-code-to-motion-building-an-autonomous-hat-hunting-robot-with-kubernetes-ml) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) ## 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) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Best Coding Boot Camps in Germany](https://www.wearedevelopers.com/magazine/237-best-coding-boot-camps-in-germany) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)