> Markdown version of [/jobs/ext/1343542-windows-linux-system-administrator](https://www.wearedevelopers.com/jobs/ext/1343542-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:** Maximus, Inc. - **Location:** Annapolis Junction, MD, United States - **Experience:** Expert - **Salary:** $90,000.0 - $100,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, Server Applications, Systems Engineering, 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), PostgreSQL, Linux Servers, Microsoft SQL Server, Network Connections, Dell PowerEdge, Windows PowerShell, Shell Script, Systems Integration, Virtualization Technology, SSL Certificate Management, Scripting, System Availability, Peripherals, Vcenter, Vmware - **Published:** July 19, 2026 - **Apply:** https://www.juju.com/job/00000000ghqobs ## About the Role * Active Secret security clearance. * Due to contract requirements, only US Citizens can be considered. Candidates with dual citizenship cannot be considered. * 7+ years of relevant experience in systems administrator or systems engineering. o Experience with Windows / Linux Server environments, including installation, patching, and troubleshooting. o Experience with telephony platforms, including Avaya and call recording/workforce management applications. o Experience with VMware environments, including ESXi and vCenter, for installation, upgrades, troubleshooting, and ESXi certificate management. o Networking experience includes IPv4 / IPv6, ports/protocols, and monitoring. o Familiarity with remediation and validation of security vulnerabilities in a Windows / Linux Server environment. o Proficiency with managing and monitoring infrastructure, including telephony peripherals and server systems. o Knowledge of client/server certificate management. o 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. Preferred/Desirable Skills: * Prior DHS suitability * Scripting experience (PowerShell, Shell scripting) * Experience with virtualization technologies (VMWare) * Experience with Microsoft SQL Server and PostgreSQL databases * Demonstrated experience with Active Directory and Group Policy administration * Experience with security vulnerability remediation and validation #techjobs #clearance #veteranpa #APPCASTDTO ## Description * 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 - [IoT: The road to sustainability](https://www.wearedevelopers.com/videos/557-iot-the-road-to-sustainability) - [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) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [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) - [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) ## Related Articles - [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) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 191: Malware interviews, EU ❤️ Open Source and Skilled Agents](https://www.wearedevelopers.com/magazine/645-dev-digest-191-malware-interviews-eu-open-source-and-skilled-agents) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025)