Description Leidos is seeking a Senior System Administrator to maintain a large enterprise IT contract for the DOD. The System Administrator will support operations across multiple enclaves, classifications, and time zones. The System Administrator provides systems and software Operations and Maintenance (O&M) support in a large multi-enclave enterprise environment for the customer's custom DoDIIS Identity Attribute Service (DIAS) system based on Linux. This individual will work in a team environment to ensure mission needs are met and ensure functionality of capabilities of customers. This role requires an individual that is technical, customer oriented and familiar with utilizing Linux, Oracle, SQL, and Radiant Logic tools and software in addition to IT Service Management software such as Service Now or Remedy. This colleague should be detail oriented to capture customer inquiries appropriately. Role requires excellent oral and written communication skills to communicate effectively with customers and leadership and properly document problems and resolutions. This role is responsible for interacting with customers to handle service inquiries and problems in a Tier 2 role. Duties include examining complex customer problems and suggesting and implementing appropriate corrective action to initiate a repair, troubleshoot authentication and access issues, troubleshoot LDAP sync errors and communication to internal and external authentication services. This role evaluates recurring problems and initiates solutions for preventing recurrence. Individuals in this role may be required to remotely log into customers' endpoint (desktops and/or servers) in order to troubleshoot and perform technical software configuration, rebooting, and other remedial actions.

Primary Tasks:

Interact with customers to handle service inquiries and problems. Oversee implementation, troubleshooting and maintenance efforts for DIAS systems such as Oracle OID, OVD, and OIF, Apache, TomCat, and Radiant Logic. Rapidly distinguish isolated user problems from enterprise-wide application/system problems. Manage databases, web servers, and LDAP services Create and manage accounts within the system to allow users to properly authenticate with external services.• Utilize SQL Developer Studio, Apache Directory Studio, and Radiant Logic to manage database/LDAP entries. Coordinate with customers and stakeholders to collect data, conduct analysis, develop, and implement solutions associated with incident tickets and requirements. Troubleshoot complex issues and determine fix actions, document change requirements, and implement changes to production systems. Oversee knowledge management for the team to include coordinating training opportunities, training junior staff on new capabilities, and seeking alternative training methods if structured training courses are unavailable. Develop and maintain Standard Operating Procedures (SOPs) for internal team use and update Knowledge Articles (KAs) for use by customers and helpdesk personnel. Establish comprehensive availability and capacity management solutions using lessons learned. Manage major projects to include deployment of new servers, upgrades of OS and software, Linux server certificate replacements, and routine patch management. Provide follow-up reports (technical findings, feedback, resolution steps taken, After Action Reports (AARs)) for root cause analysis, engineering technical assessment and process improvement initiatives. Support customer requirements in a 24/7/365 mission environment via after-hours emergency support, planning and scheduling downtime, and routine maintenance scheduling. Provide mentoring and training to 24/7/365 IT Operations Center (ITOC) personnel. Develop and update Standard Operating Procedures (SOPs) and monitoring documentation for 24/7/365 ITOC personnel. Basic Qualifications Extensive experience with Tier 2 system administration and/or Tier 3 engineering of Linux based servers/systems. Strong experience with Scripting/Automation using Microsoft PowerShell, Linux shell scripts, or other scripting languages Experience managing Oracle databases Experience with Radiant Logic Experience managing Web Logic Experience with TomCat and Apache web services Extensive experience interacting with customers to handle service inquiries and problems Strong experience troubleshooting issues in a growing environment Strong experience with log reviews, incident analysis, and identification of issue trends Experience with server patch management methodologies Ability to manage time appropriately, triage incidents, and respond accordingly to issues impacting mission critical customers and services Experience implementing system patches and upgrades with minimal downtime to customers. Strong oral and written communications skills Track record of working effectively within a team, and support to peers toward improved processes and results Experience with IT Service Management solutions such as Service Now or Remedy Candidate must, at a minimum, meet DoDM 8140.03 (previously DoD 8570) - IT System Admin Intermediate certification requirements (Cloud+, GICSP, SSCP, Security+ CE, GSEC, or higher) Preferred Qualifications Linux Administration Certification (i.e. Linux+, LFCS, or RHCSA) Education Bachelor's degree with 8 years of relevant experience, Master's degree with 6 years, Associate's with 10 years of related experience or High School Diploma with 12 years of related experience can be used in lieu of Bachelor's degree. Security Clearance Due to the nature of the government contracts we support, US Citizenship is required. TS/SCI with specific Polygraph required for position OR TS/SCI and willingness to obtain and maintain a polygraph.

ISEO Original Posting:

April 28, 2025 For U.S.

Positions:

While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $89,700.00 - $162,150.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.