Senior System Administrator

Leidos is seeking an experienced System Administrator to support autonomous maritime projects' hardware stacks by managing and maintaining Linux-based systems in an on-premises system integration lab (SIL) in Arlington, VA. The System Administrator will be joining an existing team which has already successfully delivered for our customers and plan to continue their reputation of excellence. The System Administrator will focus on system configuration, monitoring, troubleshooting, and ensuring the

Job ID: 2610475 Location: Arlington, VA, US Date Posted: 2026-03-20 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_ON_SITE Description SAIC is currently seeking an experienced Linux and UNIX Administrator to operate and maintain Red Hat and Oracle Linux (Release 7 and 8), and HP-UX (11.31) operating systems within

Leidos is looking to fill a Linux Server Systems Administrator position to support the National Digital Exploitation & OSINT Center (NDOC). This role requires an individual that has technical experience with administering Linux servers within a within a physical and virtual environment. This role is responsible for interacting with administrators to handle service inquiries and problems. Duties include examining customer problems and implementing appropriate corrective action to initiate a repai

Job ID: T2601926 Location: Arlington, VA, US Date Posted: 2026-03-05 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: Secret Potential for Remote Work: ORA_ON_SITE Description ? SAIC has an opening for a Linux/Cloud Engineer billet in Arlington, VA. SAIC is recognized as an IT leader in the intelligence and law enforcement spaces. This exciting opport