Apogee Research, LLC · 19 hours ago
Senior Systems Administrator (Top Secret)
Arlington, VA
Full-time
Onsite
Mid, Senior Level
4+ years expApogee Research, LLC is a company that brings cutting-edge research into practice for the DoD community. They are seeking a skilled Systems Administrator to provide operational and technical support for enterprise and standalone information systems, ensuring the availability, integrity, and security of their environments in compliance with DoD regulations.
ComputerSecuritySoftware
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Configure, maintain, and administer a blended Windows/Linux infrastructure environment, including:
System deployment - Hardware assembly, OS installation and configuration, permissions configuration, and security hardening
System maintenance – User management, installation, configuration, and update of software, patches, and firmware
System optimization - Monitor system performance and health to identify opportunities for performance improvement, implement system tuning
Automation - Scripting routine tasks using BASH, Python, and PowerShell
Linux systems administration including identifying and troubleshooting issues with permissions and user rights, networking, performance and responsiveness, and system functionality problems resulting from security hardening
Coordinate with project engineering teams to understand their project needs, gather requirements, and customize provided services to meet those needs
Provide support and administration of security and management systems (switches, firewalls, domain controllers, virtualization stack) in accordance with candidate’s expertise
In-person, voice, and chat support to users for laptop configuration, network settings, hardware peripherals, and standard end user applications
Configure, manage, and maintain auditing tools used in the classified spaces. (Kibana or Splunk experience preferred)
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 for classified networks (WAN, ISOL, LAN)
Support vulnerability scanning and remediation using approved tools (i.e, Nessus)
Deploy and maintain log aggregators (i.e., Kibana)
Coordinate and collaborate with the ISSO, ISSM, Contract Program Security Officer (CPSO)/Facility Security Officer (FSO), and IT teams to implement and enforce system security controls through incident reporting and investigation, system and process documentation, and establishment and maintenance of configuration management baselines
Participate in recurring assessment activities (Incident Management Drills, Security Configuration Board Meetings, Change Control Board meetings)
Support cyber awareness training by providing technical input on system usage and security best practices
Qualification
Required
Bachelor's Degree and 4+ years as a Systems Administrator or IT specialist (additional experience is considered in lieu of degree)
Full-Time, In-Person
Hands-on system administration experience, including command line/shell activity, with Windows Server (2019/2025, Windows 10/11, Red Hat, and other Linux distributions in enterprise or DoD environments
Expertise 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: CGRC, CND, CompTIA Security+, CompTIA CYSA+, SecurityX / CASP+, CCNP Security, CCSP, Cloud+, FITSP-O, GFACT, GICSP, GSEC, Network+, and SSCP
Self-starter, highly motivated, able to multi-task and meet tight deadlines. A strong candidate must have the ability to work well under pressure and deal with changing priorities
Must have excellent work habits, including a willingness to work the hours necessary to get the job done
Excellent communication skills (oral and written), ability to work in team environment, and must work well with others
Effective problem solving and a proven ability to cope with conflict, stress and crisis situations
This job requires final TOP SECRET security clearance. We will only accept candidates that currently have a final TOP SECRET security clearance
All applicants must be a US CITIZEN
Preferred
Proficiency in managing Windows Server, Active Directory, Group Policies, and Red Hat system security configurations (e.g., SELinux, FAPolicyD, firewall rules)
Experience configuring systems to comply with DoD STIGs, NIST SP 800-53 requirements
Experience with desktop virtualization programs (e.g., Oracle's VirualBox), Adobe, and Office365 tools and programs
Preference for experience in Research & Development and US military environments supporting complex COTS and GOTS integration
Familiarity with scripting (e.g., PowerShell, Ansible, Java, Python, Bash) to automate system administration tasks
Knowledge of vulnerability and compliance scanning tools (e.g., Nessus, OpenSCAP, SCC) and configuration management tools
Understanding of network protocols, firewalls, and secure file transfer methods
Working knowledge of NIST SP 800-53, RMF JSIG, and DOD/DCSA security policies and manuals
Benefits
Health, dental, vision, life, and disability insurance
FSAs
Paid vacation
Sick leave
Paid holidays
Paid garage parking
A contribution towards a transit account
Company
Apogee Research, LLC
We blend agility with rigor to develop new technologies and transition them for operational use, with a focus on the rapid deployment and adaptation of robust, heterogeneous, distributed systems to improve National Security.
11-50 employees
Funding
Current Stage
Early StageLeadership Team
Jessica Lee
CTO
Scott Silverberg, CPA
Chief Financial Officer
Company data provided by crunchbase