> Markdown version of [/jobs/ext/1928330-mid-sr-system-administrator](https://www.wearedevelopers.com/jobs/ext/1928330-mid-sr-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). --- # Mid/Sr. System Administrator - **Company:** Leidos, Inc. - **Location:** Annapolis Junction, MD, United States - **Experience:** Experienced - **Salary:** $92,300.0 - $166,850.0 - **Contract:** Permanent contract - **Skills:** Active Directory, Agile Methodology, Application Performance Management, Systems Engineering, Complex Networks, Cyber Security, Information Systems, Distributed Systems, Integrated Development Environments, Microsoft SQL Server, Windows Servers, Network Architecture, Public Key Infrastructure, PowerCLI, Windows PowerShell, Red Hat Enterprise Linux, Ansible, Server Virtualization, Software Configuration Management, Software Engineering, Software Vulnerability Management, Scripting, Information Technology, SolarWinds (Software), Nessus, Puppet, Splunk, Vmware - **Published:** August 5, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9076176/midsr-system-administrator ## About the Role * Bachelor's Degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or a related technical field and at least 8 years of relevant experience. Additional experience may be substituted for a degree. * Must have experience as a systems administrator providing direct support to end users and technical staff (developers, testers, engineers, etc.). * Must be proficient with Windows Server 2019 and Active Directory. * Must have experience with software/hardware deployment, patches, operating systems, and basic system backup and restore functions. * Must have experience with/be familiar with SALT, Ansible, Splunk, Puppet, SolarWinds, Nessus. * Must have experience with and/or have knowledge of Red Hat and VMWare. * Must have a solid understanding of advanced security protocols and standards. * Must have experience with both Client and Server virtualization environments. * Must have experience with installation, configuration, troubleshooting, and reimaging hardware. * Must have a solid understanding of information security principles and practices. * Must be able to lift up to 50 lbs. * Must be able to support occasional day or short duration travel. * Clearance Required: Must have TS/SCI with Polygraph. Preferred Qualifications * Proficiency with SQL Server. * SALT and Python scripting experience. * Experience supporting a software configuration management and development environment. * Experience working in an Agile Development Environment or on an Agile Team. * Knowledge of PKI systems which use HSMs to validate key and NTP for synchronization. * Knowledge of PowerShell and PowerCLI. * Experience in documenting and providing information for security accreditation and certification. ## Description The selected individual will provide system administration support for a large, complex network environment with geographically distributed systems. The role supports system engineering requests by delivering solutions that meet operational needs, and by upgrading, sustaining, and maintaining existing capabilities. The candidate must be comfortable working in a fast-paced environment that includes multiple air-gapped systems, each with its own domain and supporting infrastructure. The position also requires maintaining a complex IT environment involving multiple users, as well as associated storage and network infrastructure. This role requires an energetic, focused, and driven individual who can adapt quickly to changing priorities. The candidate must demonstrate strong system administration and troubleshooting skills and work effectively with the team to execute a variety of network-centric system administration tasks. Responsibilities Include The selected individual will be responsible for installing applications, administrating systems and processes, and ensuring issues are identified and resolved in a timely manner. She/he will be responsible for ensuring server and desktop configurations are optimized and running continuously and efficiently. The selected individual will also perform security management and application performance optimization functions. Additional responsibilities may include: * Administration/sustainment of a system that provides a web-based application for storing, sharing, and distributing information. * Creating and maintaining complex server enclaves, including analyzing system scanning reports, patching, cert renewals, vulnerability management assessments, and active directory configurations. * Identifying and correcting hardware and software issues. * Responding to system administration, operations, and maintenance problems, and developing re-work solutions. * Creating and maintaining documentation of complex server/network environments to ensure that clear, concise and accurate information is readily available for incident resolution. * Communicating with users and external support personnel regarding system outages and upgrades, and conferring with upper management regarding recommended resolution options. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Automate everything via NodeJS and Puppeteer](https://www.wearedevelopers.com/videos/322-automate-everything-via-nodejs-and-puppeteer) - [Our journey with Spring Boot in a microservice architecture](https://www.wearedevelopers.com/videos/511-our-journey-with-spring-boot-in-a-microservice-architecture) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [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) - [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 - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [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) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)