> Markdown version of [/jobs/ext/2243252-windows-linux-system-administrator](https://www.wearedevelopers.com/jobs/ext/2243252-windows-linux-system-administrator). 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). --- # Windows/Linux System Administrator - **Company:** Zachary Piper - **Location:** Annapolis, MD, United States - **Experience:** Expert - **Salary:** $85,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, Server Applications, Avaya IP Phone 1140e, Unix, Client Server Models, Dynamic Host Configuration Protocol, Linux, Domain Name System (DNS), VMware ESX Servers, Web Servers, Internet Information Services (IIS), IPv4, IPv6, Lightweight Directory Access Protocols (LDAP), Linux Servers, Network Connections, Dell PowerEdge, Systems Integration, VMware Infrastructure, SSL Certificate Management, System Availability, Peripherals, Vcenter, Vmware - **Published:** August 26, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9118634/windowslinux-system-administrator ## About the Role * Minimum of 7 years of experience supporting telephony systems in a systems administrator or engineer role. * Experience with Windows / Linux Server environments, including installation, patching, and troubleshooting. * Experience with telephony platforms, including Avaya and call recording/workforce management applications. * Experience with VMware environments, including ESXi and vCenter, for installation, upgrades, troubleshooting, and ESXi certificate management. * Networking experience includes IPv4 / IPv6, ports/protocols, and monitoring. * Familiarity with remediation and validation of security vulnerabilities in a Windows / Linux Server environment. * Proficiency with managing and monitoring infrastructure, including telephony peripherals and server systems. * Knowledge of client/server certificate management. * Experience with Active Directory and Group Policy Administration. * Candidates must reside within a commutable distance for daily onsite work and on-call requirements. * This contract supports systems that require 24x7x365 uptime. * Candidates must be willing and able to meet recall requirements, including participation in a rotational on-call schedule., Key words: system administrator, sys admin, installing, upgrades, troubleshooting, telephony, vmware, esxi, vcenter, management, active directory, windows, linux, unix, avaya, wof, wfm, cms, iis, telecom, dns, dhcp, ldap, poweredge, dell ## Description Zachary Piper Solutions is seeking a Windows/Linux System Administrator to join a Federal Program located in Annapolis Junction, MD. The Windows/Linux System Administrator will be responsible for maintaining and troubleshooting Avaya-based enterprise voice and contact center systems, supporting Windows/Linux servers, VMware infrastructure, network connectivity, security compliance, and 24x7 operations in a cleared government environment., * Manage and support enterprise telephony systems across these programs, including hardware, software, peripherals, and call applications such as WFO/WFM, CMS, and call recording platforms. * Install, configure, operate, monitor, and maintain enterprise infrastructure, including web servers (e.g., IIS), application servers, and telecom hardware (e.g., Dell PowerEdge servers, Anaya J Series phones). * Install, configure, troubleshoot, and resolve issues related to telephony systems, Windows / Linux servers, network connectivity, and system integrations with Active Directory, DNS, DHCP, and LDAP. * Collaborate with cross-functional teams to implement telephony solutions that ensure high availability, call quality, and compliance with security and performance standards. * Apply regular and emergency patches to Windows / Linux Server environments to maintain security and compliance. * Perform system upgrades and migrations, including planning, testing, and execution. * Conduct regular system health checks and preventive maintenance. * Coordinate with security teams to address audit findings and implement appropriate remediations. Other tasks as assigned. ## Related Videos - [Crew Management System for Airlines: Plan duties for pilots & flight attendants worldwide](https://www.wearedevelopers.com/videos/1444-crew-management-system-for-airlines-plan-duties-for-pilots-flight-attendants-worldwide) - [WeAreDevelopers LIVE - Node and Package Security](https://www.wearedevelopers.com/videos/2138-wearedevelopers-live-node-and-package-security) - [IP Authentication: A Tale of Performance Pitfalls and Challenges in Prod](https://www.wearedevelopers.com/videos/1413-ip-authentication-a-tale-of-performance-pitfalls-and-challenges-in-prod) - [IoT: The road to sustainability](https://www.wearedevelopers.com/videos/557-iot-the-road-to-sustainability) - [The Vonage Trivia Voyage: Quiz Your Way to the Top!](https://www.wearedevelopers.com/videos/1077-the-vonage-trivia-voyage-quiz-your-way-to-the-top) - [The Time Paradox: Building Timezone-Safe Python/Django Applications](https://www.wearedevelopers.com/videos/1915-the-time-paradox-building-timezone-safe-python-django-applications) ## 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) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)