We are seeking a skilled and experienced Sr. System Administrator to ensure the performance and security of our multi-user computer systems. In collaboration with network engineers, you will play a key role in maintaining smooth operations, monitoring system resources, and resolving complex issues. As a member of our team, you will contribute to the efficiency of our computing environment by configuring operating systems, performing security administration, and implementing best practices. This position requires an active Top-Secret SCI with current CI Polygraph clearance. Responsibilities:
-Monitor and manage system resources, including CPU usage, disk usage, and response times to uphold operating efficiency.
-Execute system security administration functions such as creating user profiles and accounts.
-Provide Tier 3 problem identification, diagnosis, and resolution, demonstrating the ability to anticipate and take decisive action.
-Configure operating systems and ensure applications are built on a PostgreSQL or Oracle database.
-Write scripts for monitoring system services, data mining logs, and perform SQL and PL/SQL tasks for data reports and modifications.
-Interact with users, evaluate vendor products, and make recommendations for hardware and software purchases.
-Develop and enforce policies and standards for resource allocation in computing environments.
-Collaborate on the installation of system-wide software, applications/operating systems hardening, and allocation of mass storage space. Requirements
-Bachelor's degree or 8 years of relevant experience; additional experience considered in lieu of a degree
-Minimum 5 years of experience in systems administration, including proficiency in Linux or CentOS
-Team-oriented with the ability to anticipate problems and take decisive action
-Experience maintaining applications on PostgreSQL or Oracle databases
-Proficient in writing scripts, SQL, and PL/SQL for system monitoring and data management
-Knowledge of Keytool, OpenSSL, and troubleshooting Java and Oracle applications
-Familiarity with XML
-DoD 8570 Compliant with current IAT level II baseline certification (Security CE, GICSP, SSCP, etc.)
-Experience in maintaining systems in cloud environments
-Familiarity with Firewalls and AWS Security Groups Desired Qualifications:
-Linux certification
-Current RHCSA/RHCE certification
-Microsoft MCSA certification -VMware Certified Professional
-Knowledge of SQL Servers