Senior Systems Administrator

The National Security Sector at Leidos is seeking a Senior System Administrator to join a dynamic team based in Tysons Corner, VA. This exciting opportunity allows you to apply your expertise in system administration and software programming while supporting a small team responsible for managing a wide range of mission-critical systems.

Key Details:

• Work hours fall within the core shift range of 0600–1600

• On-call duty is required one weekend every six weeks

• Candidates must successfully complete a medical clearance process prior to starting work.

Primary Responsibilities include:

• Management of medium-to-large-scale government data warehouses or digital archive management

• Interface control document (ICD) implementation and maintenance of government systems interconnects

• Ensure Security compliance requirements

• Provide on-site tiered help desk support to user base

• Will work onsite in a SCIF with operational pager/cell phone duty rotation

• Contribute technical insights to guide the system's cloud hosting strategy

• Develop monitoring dashboards to alert on software operational status

• Metrics, performance reporting, system health and status of medium to large scale storage and processing systems

• Storage maintenance and capacity planning

• HW/SW troubleshooting

• Microsoft WSH programming

• LINUS shell programming

• Script programming

• Audit log management and administration

• Provide expert support in the administration and maintenance of the Enterprise Linux infrastructure

• Provide support in information security system requirements and design applicable to Linux hosts

• Manage Linux systems using Puppet or other config management tools; handle patches and mitigate IAVA vulnerabilities

• Improve system operations and functionality, monitoring, and optimization of the hardware platform. 

• Implement STIG guidance to support ATO sustainment efforts 

• Troubleshoot and resolve network, automation pipelines, and infrastructure issues

• Cloud VPC, Compute Services, Storage Management, Monitor and Observability, Identity and Access management

• Experience in Database Administration and system monitoring, including Linux command-based troubleshooting

• Provide technical input, assist in the maintenance of system administration, security policy/procedure documentation

• Manage and troubleshoot Configuration Management tools, covering Linux and Database Administration tasks such as configuration and upgrades

• Document system configuration, external service dependencies, optimal settings (Authentication/Authorization/Accounting (AAA), resource allocation), and standard procedures (startup/shutdown, backup, upgrade)

Required Clearance: Active and in-scope TS/SCI with polygraph required for consideration. US citizenship is required.

Minimum Education, Skills, and Experience:

• Requires a bachelor’s degree and 8+ years of experience OR master’s degree and 6+ years of experience.   Additional related experience and certifications may be considered in lieu of degree.   

• 5+ years of technical experience in maintaining automated system platforms for the intelligence community. 

• Demonstrated success with Linux, database system administration, and scripting 

• Experience operating , maintaining HW, SW, Cloud Components, LANs, WANs, SAN, and NAS.

• Open source and custom application deployments and maintenance experience to include ATO and patching for cyber compliance 

• Communicate effectively with customers and team in written and oral forums. 

• Be familiar with the complexity of issues and be able to estimate the level of effort times and be able to provide appropriate documentation and upkeep log files.

• Degree or equivalent demonstrated experience in a technical field. 

• Experience with or understanding of authentication and authorization A&A fundamentals 

• Software: Apache Webserver, PostGres SQL/PostGIS, OMAR, OSSIM, RedHat LINUS, FreeIPA,  Microsoft Windows Server, Microsoft Office, Microsoft Internet Information Service, OGC Web Services (WMS, WFS, WCS), Google Earth Client, Geospatial products

• Hardware: Network Attached Storage (NAS) deployment and maintenance; Firewall, switch and router installation, deployment and maintenance; server

Additional Skills desired: