Senior/Lead System Administrator
Listed on 2026-01-15
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IT/Tech
Cybersecurity, IT Support, Systems Administrator, Network Security
Overview
Join to apply for the Senior/Lead System Administrator role at Apogee Research, LLC
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Apogee Research brings cutting-edge research into practice for the DoD community. We blend agility with rigor to develop new technologies and transition them into operational use. Founded in 2012, Apogee Research brings together cross-discipline teams to solve difficult problems across a range of technical domains. At Apogee Research we work hard, we get things done, and we do it together.
Apogee Research is seeking a skilled System Administrator to provide operational and technical support for enterprise and standalone information systems. This role is critical to maintaining the availability, integrity, and security of Apogee’s Windows, Red Hat, and virtualized environments in compliance with DoD regulations and NIST standards (SP 800-171, SP 800-53, SP 800-30). The System Administrator will configure, maintain, and troubleshoot systems, implement security controls, and support compliance efforts through system hardening, patch management, and documentation.
This position requires proficiency in systems administration, a proactive approach to problem-solving, and the ability to collaborate with security and IT teams to uphold a robust security posture in a fast-paced R&D environment.
This position can be scoped to meet the capabilities of the right candidate with competitive compensation matched to the key responsibilities of the role.
Key Responsibilities- Configure, maintain, and administer a blended Windows/Linux infrastructure environment, including system deployment, system maintenance, and system optimization.
- Automation:
Scripting routine tasks using BASH, Python, Ansible, Kickstart, and Power Shell. - Linux system administration including permissions, networking, performance, and security hardening related issues.
- Coordinate with project engineering teams to understand project needs, gather requirements, and customize services.
- Support and administer security and management systems (switches, firewalls, domain controllers, virtualization stack).
- Provide in-person, voice, and chat support to users for laptop configuration, network settings, hardware peripherals, and standard end-user applications.
- Routine audits of systems and software, including log analysis.
- Perform system backups, Assured File Transfers, and secure decommissioning of hardware in compliance with DoD policies.
- Implement and verify Security Technical Implementation Guides (STIGs) and security controls per NIST SP 800-53 and SP 800-171 for classified and CUI networks (WAN, ISOL, LAN).
- Support vulnerability scanning and remediation using approved tools (e.g., Nessus and Wazuh).
- Deploy and maintain log aggregators (e.g., Kibana and Wazuh).
- Coordinate with ISSO/ISSM, CPSO/FSO, and IT teams to implement and enforce security controls through incident reporting, documentation, and configuration baselines.
- Participate in recurring assessment activities and prepare security reporting (Risk Assessments, Continuous Monitoring Plans, System Change Requests, Security Control Traceability Matrices, Plan of Action and Milestones).
- Support cyber awareness training by providing technical input on system usage and security best practices.
- Bachelor’s Degree and 4+ years as a System Administrator or IT specialist (additional experience considered in lieu of degree).
- Full-Time, In-Person
- Hands-on system administration experience with Windows Server (2019/2022), Windows 10/11, Red Hat, and other Linux distributions in enterprise or DoD environments.
- Experience troubleshooting services and protocols such as TCP/IP, DNS, FTP, SSH, SCP, SSL, HTTP/HTTPS.
- Ability to obtain and maintain one or more of the following: CAP, CND, CompTIA Security+, and CompTIA CySA+.
- Self-starter, highly motivated, able to multi-task and meet tight deadlines; ability to work under pressure and adapt to changing priorities.
- Excellent work habits and willingness to work the hours necessary to complete the job.
- Excellent communication skills (oral and written), ability to work in a team environment, and ability to work well with others.
- Effective problem solving and ability to…
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