Senior Infrastructure and Systems Administrator

About the role

This role supports the implementation, maintenance, security, and operational readiness of complex classified and unclassified research infrastructure environments. It involves hands-on infrastructure management, network configuration, virtualization, and security.

Responsibilities

• Implement, maintain, and enhance classified and unclassified research infrastructure systems
• Perform Linux and Windows server administration, including installation, configuration, patching, troubleshooting, hardening, and lifecycle support
• Install, configure, and troubleshoot IT, networking, compute, storage, and lab hardware/software
• Build and maintain OS images for Linux and Windows environments
• Configure new systems using security best practices, approved baselines, and program-specific requirements
• Support virtualization and infrastructure platforms such as VMware, Proxmox, Hyper-V, KVM, OpenStack, or similar technologies
• Support network configuration and troubleshooting, including TCP/IP, VLANs, routing, switching, DNS, DHCP, firewalls, remote access, and port activation/patching
• Integrate GOTS, COTS, and open-source tools into secure research environments
• Maintain system security posture through regular patching, anti-virus/endpoint protection updates, vulnerability remediation, and configuration management
• Support audit tasks, evidence collection, account reviews, log review, media control, and compliance activities in coordination with Security teams
• Develop and execute approved procedures for sanitizing, releasing, or disposing of system components and media
• Maintain technical documentation, system diagrams, configuration records, SOPs, and operational runbooks
• Interface with the government customer, program teams, security personnel, and subcontractors to coordinate infrastructure work and resolve issues

Qualifications

• Minimum of 6+ years of experience with a Bachelor's degree, 4+ years of experience with a Master's degree, or a PhD in Computer Science, Computer Engineering, Information Systems, Cybersecurity, or a related technical field.
• In lieu of a Bachelors, an additional 4 years of experience is required for a total of 10+ years relevant experience.
• Strong experience with Linux and Windows server system administration.
• Experience administering, securing, and troubleshooting enterprise or research infrastructure environments.
• Experience with network fundamentals, including TCP/IP, routing, switching, DNS, DHCP, VLANs, firewalls, and remote access.
• Experience with virtualization technologies such as VMware, Hyper-V, KVM, Proxmox, OpenStack, or similar platforms.
• Experience installing, configuring, troubleshooting, and maintaining IT/networking hardware and software.
• Experience applying security baselines, system hardening, patching, vulnerability remediation, and endpoint protection updates.
• Experience supporting backup, recovery, logging, audit, and system maintenance procedures.
• Ability to support physical infrastructure work, including cabling, rack/stack, power, patching, and hardware replacement.
• Ability to work as a senior contributor in a team environment involving customer, subcontractor, and internal technical personnel.
• Strong communication and documentation skills.
• US Citizenship is a requirement for this position.
• This position requires an active/current TS/SCI w/ Polygraph.