ClearanceJobs
We are seeking a Jr Security System Administrator in the downtown Denver area. This position is on site and requires a Top‑Secret clearance or higher.
My client is an innovative aerospace company specializing in end‑to‑end customer solutions and the rapid production of spacecraft platforms. The company’s Space Segment Solution includes spacecraft production, payload integration, system integration & test, launch services, ground segment services, and mission operations, enabling customers to leverage existing technology to reach orbit rapidly and responsively.
Base pay range $75,000.00 / yr – $90,000.00 / yr
Responsibilities
Provide technical inputs as needed for ground assets in support of classified systems
Assist with the deployment and configuration of collection services and tools
Collaborate with stakeholders to integrate cyber requirements into space assets throughout production and operation phases
Continuously evaluate and maintain system baseline in compliance with accreditation requirements
Maintain system boundary security configurations, including patch management, vulnerability remediation, implementing STIGs, and other system security configurations as needed
Implement systems administration tasks associated with cybersecurity control in accordance with applicable regulatory guidance and contractual requirements
Assist with validation and remediation of network servers, routers, and switches to ensure compliance with security policy, procedures, and technical requirements
Assist with the establishment of secured host baseline (SHB) images for multiple operating systems and DISA STIGs
Perform vulnerability testing using system test tools (e.g., ACAS/Nessus, SCAP, STIGs) and remediate flaws within the directed timeframe
Perform backups and configure backup repository per system monitoring plans
Identify and develop authorization boundary diagrams, architecture diagrams, and hardware and software inventories
Ensure that hardware, software, data, and facility resources are archived, sanitized, or disposed of in a manner consistent with system security plans and requirements
Participate in the change management process, assessing system impact of proposed changes
Report all security‑related concerns and changes that may affect the system
Provide proactive system administration support
Other duties as deemed appropriate for this position
Required Qualifications
Bachelor’s Degree in Information Technology, Information Systems Security, Cybersecurity, or related field, or 5 years of directly related experience
Minimum 2 years’ experience in a systems administration position for the U.S. government or a U.S. government contractor
Security+ certification or equivalent
Currently possess a Top Secret clearance or higher
Proficient in Microsoft Windows and Linux operating systems
Experience using DISA STIGs, SRGs, and SCAP to securely configure network‑enabled devices
Experience with anti‑virus, vulnerability assessment, HIDS/NIDS, McAfee HBSS, MFA, SIEM, and centralized auditing tools (Splunk preferred)
Preferred Experience
Experience in computer hardware and software operating systems and application solutions in both stand‑alone and LAN/WAN configurations
Ability to remediate security vulnerabilities by implementing solutions on networked devices and applications through malware identification, containment, and eradication
Independently capable of identifying system vulnerabilities
Experience in conducting software due diligence with COTS and GOTS solutions
Knowledge of IT security principles and methods (firewalls, demilitarized zones, encryption)
Knowledge of PKI, multi‑factor authentication, and entitlements management
Working knowledge of virtualization technologies
Working knowledge of scripting/programming languages (PowerShell, Python, BASH)
Operational knowledge of switches/routers/firewalls
Strong communication and documentation skills
Positive, self‑motivated individual who can complete tasks independently
Seniority level Associate
Employment type Full‑time
Job function Information Technology
Industries Defense and Space Manufacturing
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My client is an innovative aerospace company specializing in end‑to‑end customer solutions and the rapid production of spacecraft platforms. The company’s Space Segment Solution includes spacecraft production, payload integration, system integration & test, launch services, ground segment services, and mission operations, enabling customers to leverage existing technology to reach orbit rapidly and responsively.
Base pay range $75,000.00 / yr – $90,000.00 / yr
Responsibilities
Provide technical inputs as needed for ground assets in support of classified systems
Assist with the deployment and configuration of collection services and tools
Collaborate with stakeholders to integrate cyber requirements into space assets throughout production and operation phases
Continuously evaluate and maintain system baseline in compliance with accreditation requirements
Maintain system boundary security configurations, including patch management, vulnerability remediation, implementing STIGs, and other system security configurations as needed
Implement systems administration tasks associated with cybersecurity control in accordance with applicable regulatory guidance and contractual requirements
Assist with validation and remediation of network servers, routers, and switches to ensure compliance with security policy, procedures, and technical requirements
Assist with the establishment of secured host baseline (SHB) images for multiple operating systems and DISA STIGs
Perform vulnerability testing using system test tools (e.g., ACAS/Nessus, SCAP, STIGs) and remediate flaws within the directed timeframe
Perform backups and configure backup repository per system monitoring plans
Identify and develop authorization boundary diagrams, architecture diagrams, and hardware and software inventories
Ensure that hardware, software, data, and facility resources are archived, sanitized, or disposed of in a manner consistent with system security plans and requirements
Participate in the change management process, assessing system impact of proposed changes
Report all security‑related concerns and changes that may affect the system
Provide proactive system administration support
Other duties as deemed appropriate for this position
Required Qualifications
Bachelor’s Degree in Information Technology, Information Systems Security, Cybersecurity, or related field, or 5 years of directly related experience
Minimum 2 years’ experience in a systems administration position for the U.S. government or a U.S. government contractor
Security+ certification or equivalent
Currently possess a Top Secret clearance or higher
Proficient in Microsoft Windows and Linux operating systems
Experience using DISA STIGs, SRGs, and SCAP to securely configure network‑enabled devices
Experience with anti‑virus, vulnerability assessment, HIDS/NIDS, McAfee HBSS, MFA, SIEM, and centralized auditing tools (Splunk preferred)
Preferred Experience
Experience in computer hardware and software operating systems and application solutions in both stand‑alone and LAN/WAN configurations
Ability to remediate security vulnerabilities by implementing solutions on networked devices and applications through malware identification, containment, and eradication
Independently capable of identifying system vulnerabilities
Experience in conducting software due diligence with COTS and GOTS solutions
Knowledge of IT security principles and methods (firewalls, demilitarized zones, encryption)
Knowledge of PKI, multi‑factor authentication, and entitlements management
Working knowledge of virtualization technologies
Working knowledge of scripting/programming languages (PowerShell, Python, BASH)
Operational knowledge of switches/routers/firewalls
Strong communication and documentation skills
Positive, self‑motivated individual who can complete tasks independently
Seniority level Associate
Employment type Full‑time
Job function Information Technology
Industries Defense and Space Manufacturing
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