Sys Administrator

Job ID 2617874 Location Arnold, MO, US Date Posted 2026-10-19 Category Information Technology Subcategory Sys Administrator Schedule Full-Time Shift Day Job Travel No Minimum Clearance Required TS.SCI Clearance Level Must Be Able to Obtain TS/SCI with Poly Potential for Remote Work ORA_ON_SITE Description SAIC® is a premier Fortune 500® mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, civilian and intelligence markets includes secure high-end solutions in mission IT, enterprise IT, engineering services and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives. SAIC is seeking a Systems Administrator to support our customer at Arnold, MO. Requirements are to Duties may include Perform full system upgrades and repairs (Linux and Windows).Troubleshoot and repair operating system (OS) and hardware issues.Perform daily and weekly system backups and recovery while maintaining a log of system problems, errors, failures, and downtime metrics.Maintain hardware and software inventory lists and install software releases and upgrades.Evaluate and install security patches.Create and ensure operation of Active Directory and DNS.Create accounts and set up user specific access while maintaining group policies and procedures.Acquire system accreditation and ensures personnel comply with system security policies.Submit requirements within Service+ for any compute, storage, database, SharePoint, or Tableau infrastructure provisioning to be fulfilled by the UDS contractor. Qualifications Required Skills and Experience Active TS/SCI is Required to be considered for this roleAble and willing to obtain a PolygraphKnowledge of the LINUX operating systemExperience with Windows Administration, for exampleActive DirectoryExperience with hardening Windows instances per DISA STIG or equivalentPowerShell scriptingLocal Group Policy Updates/ManagementUsers and Group ManagementWindows File SharesKnowledge of Amazon Web Services (AWS) or cloud architectureAmazon EC2 (create and update Amazon Machine Images)Amazon S3 (configure bucket policies, Amazon VPC endpoints)AWS LambdaAmazon CloudWatchAmazon VPC (manage Security Groups, Subnets, etc.)AWS Identity and Access Management (IAM) Target salary range $120,001 - $160,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.