> Markdown version of [/jobs/ext/1791674-system-administrator-ts-sci-poly](https://www.wearedevelopers.com/jobs/ext/1791674-system-administrator-ts-sci-poly). 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 TS/SCI Poly - **Company:** Leidos, Inc. - **Location:** Alexandria, VA, United States - **Salary:** $92,300.0 - $166,850.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Agile Methodology, Complex Networks, Linux, Distributed Systems, Integrated Development Environments, Local Area Networks, Network Security, Network Connections, Public Key Infrastructure, Software Architecture, Scaled Agile Framework, Software Configuration Management, Software Engineering, Network Switches, Network Routers, Computer Networking Systems, Information Technology, Vulnerability Analysis, Vmware - **Published:** July 15, 2026 - **Apply:** https://dejobs.org/x/x/D4EF70EDEA3B4002938AE55264EEF8D1/job/ ## About the Role * BS degree in Computer Science, Information Technology, or a related technical field and at least 4 years of relevant experience. Additional experience may be substituted for a degree. * Must have experience working on an IT/software program that utilizes complex equipment/systems (ex. Network Switches, Routers, LANs, & cabling, Windows/Linux operating systems, VMware, etc.). * Must have experience with Data Center design and configuration (e.g., rack and stack, power, placement, etc.). * Must have experience or familiarity with IT system optimization, monitoring, and/or other technical set-up and troubleshooting. * Must have experience providing information for and documenting technical processes. * Must have direct, hands-on experience helping users in an IT or similar customer service capacity. * Must be capable of responding very quickly to customer inquiries in a clear, concise manner, to include providing detailed and comprehensive status reports and follow-ups. * Must be committed to adopting and adhering to best practices including compliance with maintenance windows and change control procedures. * Must possess strong analytic abilities and must be meticulous and careful in their work. * Must be an independent thinker capable of working proficiently independently as well as within a team. * Must be able to respond to system administration, operations, and maintenance problems while off duty, on an as-needed on-call basis. * Must be able to travel up to 10% of the time if required. * Must report to work in the Annapolis Junction, MD office at least once per month. * Clearance Required: Must have TS/SCI with Polygraph. Preferred Qualifications: * Experience or familiarity with security standards, software architectures, and/or Network security technologies (Multiple Domain, PKI, SSP, Vulnerability Assessment, etc.). * Experience supporting a software configuration management and development environment. * Experience working in an Agile Development Environment or on an Agile Team. ## Description We have an exciting opportunity for a Systems Administrator to support our MD customer's mission in Alexandria, VA! You will join a high performing agile team using the Scaled Agile Framework (SAFe) methodology to support a highly complex and fast-paced program. The selected candidate will be responsible for performing daily system administration and O&M support activities in support of a complex network environment with geographically distributed systems. The position entails the daily sustainment of existing computing and network systems at various locations, with a primary focus on the set-up and maintenance of a company site in Alexandria., The selected individual will be responsible for monitoring infrastructure systems, applications, and processes, and for ensuring that all issues are identified, tracked, and resolved in a timely manner. She/he will provide support for various infrastructure systems and will respond to hardware and software incidents impacting local users. She/he will work with and take direction from senior System Administrators, at times working with them remotely from other locations., * Handling IT Help Desk calls and emails, ensuring all interactions are handled timely and in a professional manner. * Utilizing enterprise monitoring solutions to identify alarms that have been triggered against the environments. * Working with more senior technicians in identifying, troubleshooting, and correcting hardware and software issues including network connectivity. * Providing technical assistance to companion work groups in support of overlapping projects and maintaining good inter-departmental relations. * Communicating with users and publishing status of any system outages, as needed. * Proactively contacting customers when infrastructure processes are significantly delayed or may impact their ability to complete a business function on time. * Executing the process for managing information assurance vulnerability alerts (IAVAs) and system security scanning for equipment suites in accordance with the System Security Plans for these systems to identify and remediate IAVAs rapidly and accurately. * Initiating IAVA responses and system security scans, completing remediation, and extending IAVA patches and security updates on various IT and network systems. * Participating in the creation and ongoing maintenance of documentation to ensure clear, concise, and accurate information is readily available to assist with incident resolution. * Undertaking project work and providing support for implementing IT enhancements. ## Related Videos - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Modern Web Development with Nuxt3](https://www.wearedevelopers.com/videos/294-modern-web-development-with-nuxt3) - [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 - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [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) - [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) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know)