System Administrator TS/SCI Poly

Job Summary Leidos is looking for a System Administrator to support our Intellectual Sector’s Cyber & Analytics Business Area (CABA) in Alexandria, VA. The role involves daily system administration and O&M support of a complex, geographically distributed network environment, with a primary focus on sustaining and maintaining the company site in Alexandria. Primary Responsibilities Handling IT Help Desk calls and emails, ensuring all interactions are handled timely and professionally. Utilizing enterprise monitoring solutions to identify and respond to alarms affecting the environment. Troubleshooting and correcting hardware, software and network connectivity issues with guidance from senior System Administrators. Providing technical assistance to partner work groups and maintaining inter‑departmental relations. Communicating with users and publishing status of system outages as needed. Proactively notifying customers about significant infrastructure delays that could impact business operations. Managing information assurance vulnerability alerts (IAVAs) and performing system security scans in accordance with System Security Plans. Initiating IAVA responses, completing remediation, and applying security updates to IT and network systems. Contributing to documentation for incident resolution and maintaining accurate records. Supporting IT enhancements and undertaking project work as required. Required Qualifications BS with 4‑8 years of experience or Masters with 2‑6 years; experience may substitute for a degree. Experience with complex IT equipment (e.g., network switches, routers, LANs, cabling, Windows/Linux, VMware). Knowledge of data center design and configuration (rack, power, placement). Familiarity with IT system optimization, monitoring and troubleshooting. Documentation of technical processes. Hands‑on IT customer service experience. Clear, concise communication and detailed status reporting. Adherence to best practices, maintenance windows and change control procedures. Strong analytic abilities and meticulous work ethic. Independent thinker capable of working alone and within a team. Availability for on‑call support during off‑hours as needed. Ability to travel up to 10% of the time. Willingness to report to the Annapolis Junction, MD office at least once per month. Clearance required: TS/SCI with Polygraph. Preferred Qualifications Experience with security standards, software architectures or network security technologies (PKI, SSP, vulnerability assessment). Support experience in a software configuration management and development environment. Experience working in an Agile environment. Pay Range Pay Range $87,100.00 – $157,450.00. The Leidos pay range for this job level is a guideline only and does not guarantee compensation. Additional factors such as responsibilities, education, experience, and market data may influence a final offer. Benefits Paid Time Off and 11 paid holidays 401(k) with 6% company match and immediate vesting Flexible schedules and discounted stock purchase plan Technical upskilling and education/training support Parental paid leave Health and wellness programs, income protection, paid leave and retirement benefits EEO Commitment All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity, veteran or military status, or any other basis prohibited by law. Leidos will also consider qualified applicants with consistent criminal histories under relevant laws. #J-18808-Ljbffr Leidos