We are seeking a Senior Cloud Systems Administrator in Herndon, VA to support the SITE III DO contract within our National Programs Business Intelligence Systems & Applications Operating Unit. This role supports mission-critical applications and services for a key directorate within the U.S. Intelligence Community.
This is a hands-on technical role requiring strong Linux systems administration, practical AWS cloud administration, security hardening, troubleshooting, and application sustainment experience. The selected candidate will help ensure reliable operation, performance, security, and availability of systems that support intelligence collection, dissemination, and mission operations.
This position is best suited for a senior administrator who has supported secure, classified, mission-focused environments and is comfortable working across Linux, AWS, security compliance, and operational application support.
Responsibilities
The Cloud Systems Administrator will be responsible for the following:
- Administer, maintain, and troubleshoot multi-user Linux systems supporting mission-critical applications.
- Support Linux environments including CentOS, Red Hat Enterprise Linux, and/or Oracle Linux.
- Provision, maintain, monitor, and support servers within an AWS environment.
- Use AWS console access to manage cloud-based infrastructure, including compute, storage, backups, snapshots, monitoring, and recovery activities.
- Perform system backups, snapshots, disaster recovery activities, and performance tuning.
- Install, configure, patch, and upgrade operating systems, applications, and supporting tools.
- Apply security configurations, perform STIG hardening, and remediate identified vulnerabilities.
- Review audit logs, troubleshoot system issues, and support root cause analysis.
- Support Tier 1 troubleshooting and Tier 2 problem resolution for operational systems.
- Work closely with network engineers, software developers, security teams, and application stakeholders to maintain system availability and performance.
- Manage system resources to optimize CPU, disk, storage, and overall system responsiveness.
- Administer user accounts, profiles, permissions, service accounts, and security settings.
- Support security audits, testing events, vulnerability scans, and compliance activities.
- Create and maintain technical documentation, including SOPs, system administration guides, user guides, and operational procedures.
- Evaluate system performance, identify improvement opportunities, and recommend hardware, software, or process enhancements.
- Support mission-critical applications that may require occasional after-hours or weekend availability.
- Work full time in a SCIF environment with flexible hours and availability during core business hours.