Senior Systems Administrator

Reston

**Location:** Reston, VA **Security Clearance:** Active TS/SCI w/ CI Poly \[Required\] **Job Type:**Full-Time **Target Salary Range\*:** $150,000 - $180,000 \*This represents the potential salary range for this position depending on education level, years of experience and/or certifications in addition to other position specific requirements which may impact salary *** ** * ** *** **Position Overview** ===================== The System Administrator manages and supports enterprise, regional, and local server environments hosting mission-critical applications and infrastructure services. This role is responsible for server administration, database administration, system deployment, performance optimization, security compliance, incident response, backup and disaster recovery, documentation, and cross-platform support across Windows, Linux, and UNIX-based environments. *** ** * ** *** **Key Responsibilities** ======================== ### **Server Administration and Management** * Oversee and manage both virtual and physical servers for enterprise, regional, and local systems. * Install, configure, document, maintain, and support server environments hosting mission-critical applications and infrastructure services. * Provide cross-platform support for Windows, Linux, and UNIX-based server environments, with a focus on application and database performance, troubleshooting, and configurations. ### **Database Administration** * Install, configure, and maintain database systems, including Oracle and Solr. * Perform database backups, restores, and performance tuning. * Monitor database health and analyze performance metrics. * Troubleshoot database issues to ensure smooth operations. ### **System Architecture, Deployment, and Configuration** * Design, deploy, and maintain secure Windows servers in AWS C2S environments. * Install and configure operating systems, database software, and application software across physical and virtual servers. * Ensure system software is properly integrated and supports enterprise applications. ### **Performance Optimization and Resource Management** * Monitor and optimize system performance, including CPU, memory, disk usage, and response times for AWS C2S environments. * Implement proactive measures to address potential performance bottlenecks. * Troubleshoot and resolve system issues related to resource usage. ### **System Security and Compliance** * Ensure systems and databases meet security standards and comply with relevant regulations. * Implement and enforce security policies. * Conduct regular vulnerability assessments. * Manage security updates and patches for operating systems and database environments. ### **Incident, Problem, and Maintenance Management** * Provide Tier 1 and Tier 2 support for troubleshooting, diagnosing, and resolving system and database issues. * Respond to service outages, coordinate recovery efforts, and ensure timely resolution of problems. * Assist in root cause analysis and implement corrective actions to prevent future issues. * Plan and execute system downtime for scheduled maintenance, upgrades, and new releases. * Install and test patches and updates for operating systems and database applications, including Oracle and Solr. ### **Backup and Disaster Recovery** * Oversee and validate regular system and database backups. * Ensure data integrity. * Support disaster recovery plans by testing restoration procedures. ### **Collaboration, Documentation, and Knowledge Sharing** * Work with cross-functional teams and external partners to install and configure server systems. * Support system integrations with other applications. * Provide user support and consult with clients on complex technical problems. * Maintain accurate documentation of system configurations, hardware, software, and processes. * Provide clear reporting for troubleshooting, maintenance, and security audits. * Train and mentor staff on server and database management best practices. * Assist in developing training materials and ensuring operators are equipped to support the systems. *** ** * ** *** **Qualifications** ================== ### **Education** * BA/BS degree with 5+ years of relevant experience; or * Master's degree with 3+ years of relevant experience. * An additional 4 years of experience may be considered in lieu of a degree. ### **Experience** * Proven experience in system administration, specifically with database management, Windows, Linux, and UNIX environments. * Proven experience in AWS C2S, specifically with deployment, management, networking, and security of C2S instances. * Experience managing both virtual and physical servers. * Experience performing system monitoring, backup management, and performance optimization. ### **Certifications** * Must have or be able to obtain CompTIA Security+ certification. **\[Required\]**