Senior Systems Administrator

Description

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.

• 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)

• 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

• Familiarity with common industry software tools, concepts, and systems administration
• Familiarity with Data management, Data integration, User Interface, Hardware, Databases
• Strong Linux skills and familiarity with hybrid cloud/on-prem architecture, AWS, C2S, etc.
• CI/CD development experience with Jenkins, GitLab, Ansible, Kubernetes, OpenShift, and/or Docker

• Certifications: Microsoft Certifications, Cisco Network Certifications, Linux Certifications, AWS Certifications, Geospatial certifications