Senior Systems Administrator

Reflexive Concepts is seeking a skilled Senior Systems Administrator to join our team! In this role, you will be a collaborative member of a small and mostly autonomous team directly supporting secure enclave development networks. In this role you will: Conduct functional and connectivity testing to ensure continuing operability. Develop and document systems administration standard operating procedures. Maintain baseline system security according to organizational policies. Manage accounts, network rights, and access to systems and equipment. Plan, execute, and verify data redundancy and system recovery procedures. Install, update, and troubleshoot systems and servers. Comply with organization systems administration standard operating procedures. Implement and enforce local network usage policies and procedures. Manage system and server resources including performance, capacity, availability, serviceability, and recoverability. Monitor and maintain system and server configurations. Perform repairs on faulty system and server hardware. Troubleshoot hardware/software interface and interoperability problems. Required Qualifications: Education and experience (one of the following): Bachelor's degree in a technical discipline + 15 years' experience as a System Administrator High school diploma + 20 years' experience as a System Administrator Experience with Windows Server Administration, Active Directory, and Group Policy Familiarity with Linux Server Administration VMware/ESXi VMware vCenter Networking Switching and Router Management VMware Virtual Networking Storage Management (NetApp) Hardware and Operating System troubleshooting System hardening Security Compliance Scanning (Nessus, ACAS) Understanding of project design within the scope of security (RMF) requirements Active TS/SCI security clearance with current Full-Scope Polygraph Active DoD IAT Level II certification (e.g., CCNA-Security, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP) Ability to demonstrate cyber/IT related experience with attention to detail, customer service, oral and written communication, and problem solving Reflexive Concepts