Mission Security Administrator II

YOUR MISSION

As a Mission Security Administrator II, you will be responsible for the setup, configuration, maintenance, and day-to-day administration of national security space systems, classified ground-based Command and Control (C2) infrastructure, and engineering environments critical to our mission.

This is a hands-on operational role focused on implementing, maintaining, and administering classified systems, understanding and ensuring compliance requirements, and working face-to-face with customers daily. You will be the technical operator ensuring classified systems function reliably, remain compliant, and support mission objectives without interruption.

We are looking for candidates with practical experience broadly across the following areas:

• System administration (Windows/Linux server environments)
• User administration, identity, RBAC and software tool oversight
• Cloud platform administration (AWS/Azure)
• Patch management and configuration management
• Software and hardware asset management, configuration management and documentation
• Backup and disaster recovery operations

You will work alongside Mission Security Engineers, IT professionals and cross-functional teams to operationalize security architecture, maintain Authorization to Operate (ATO) posture, and ensure classified systems remain operational and compliant with federal security standards. You will be a trusted operator responsible for the hands-on work that keeps mission systems secure and operational.

This is an ideal role for a security-focused system administrator with strong technical operational skills who thrives in a structured compliance environment and wants to support critical national security missions. If you take pride in maintaining secure, compliant, and reliable systems that protect lives and national interests, join our team.

RESPONSIBILITIES 

• Set up, configure, and maintain classified C2 systems, engineering environments, and supporting infrastructure
• Administer and maintain Windows and Linux servers in classified environments, ensuring operational availability and security compliance
• Manage user accounts, identities, role-based access controls (RBAC), and permissions across classified systems
• Configure and maintain cloud infrastructure in AWS or Azure, including IAM, networking, compute, and storage resources
• Perform routine system administration tasks including software installations, updates, patch management, and system troubleshooting
• Maintain accurate software and hardware asset inventories, configuration baselines, and system documentation
• Execute configuration management practices to ensure systems remain in compliance with approved baselines
• Perform routine backup operations, verify backup integrity, and support disaster recovery testing
• Support RMF compliance activities including evidence collection, documentation, and remediation tracking
• Remediate findings from vulnerability assessments, security audits, and compliance scans to maintain ATO posture
• Create and maintain technical documentation including system configurations, user guides, standard operating procedures, and runbooks
• Provide technical support and direct customer engagement to resolve system issues and respond to operational needs
• Coordinate with government customers, ISSOs, ISSEs, and assessment teams during ATO and continuous monitoring activities
• Participate in on-call rotation for system administration support and mission-critical system availability

REQUIRED QUALIFICATIONS

• Active Secret clearance required (TS/SCI preferred)
• DoD 8140 IAT Level II certification (Security+, CySA+, or equivalent) required
• Hands-on experience administering Windows Server and/or Linux server environments
• Experience with user account management, identity administration, and role-based access control (RBAC)
• Familiarity with configuration management, asset management, and system documentation practices
• Working knowledge of RMF processes and DoD security compliance requirements
• Strong troubleshooting and problem-solving skills in operational IT environments
• Excellent communication skills and ability to work face-to-face with customers and stakeholders

PREFERRED QUALIFICATIONS

• Active TS/SCI clearance (or TS/SCI with polygraph)
• Experience supporting DoD or IC mission systems in classified environments
• Experience in customer-facing technical support or system administration roles
• Experience with IL-5 or IL-6 impact level cloud environments (AWS GovCloud, Azure Government)
• Experience with Active Directory, LDAP, or other identity management systems
• Familiarity with IT service management (ITSM) tools and ticketing systems
• Experience with configuration management tools (Ansible, Puppet, Chef, SCCM)
• Hands-on experience implementing DISA STIGs and security baselines
• Knowledge of NIST SP 800-53 security controls and how they apply to system administration
• Familiarity with space system operations including satellite C2 and ground infrastructure
• Experience with backup solutions (Veeam, Commvault, AWS Backup, Azure Backup)
• Additional DoD 8140 certifications (e.g., CISSP, CISM, Server+, Linux+)
• Scripting skills (PowerShell, Bash, Python) for automation and task efficiency
  

  ◦ Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or related field AND 2–4 years of experience in system administration, IT operations, or security operations

  ◦ Master's degree in Computer Science, Information Technology, Cybersecurity, or related field (no experience required)

WORK ENVIRONMENT

This role will be onsite in Denver, CO (preferred) or Long Beach, CA #LI-Onsite

• Fast-paced, mission-critical environment supporting national security space operations
• Hands-on technical role with significant customer interaction and operational responsibilities
• Daily face-to-face engagement with government customers, engineering teams, and mission stakeholders
• Requires coordination with Mission Security Engineers, IT professionals, spacecraft engineers, and government partners
• Requires participation in on-call rotation for system administration support and mission-critical system availability
• Work is performed in Sensitive Compartmented Information Facilities (SCIFs) and other classified spaces
• Occasional travel to government sites, customer facilities, or partner locations may be required
  
  
  

  WHAT WE OFFER

• Competitive salary commensurate with experience and clearance level
• Opportunity to drive security posture for cutting-edge space systems with national security impact
• Professional development support including conferences, training, and security certifications
• Collaborative culture working alongside spacecraft engineers, mission operators, and experienced security professionals
• Equity + Benefits including Health, Dental, Vision, HRA/HSA options, PTO and paid holidays, 401K, Parental Leave

 

COMPENSATION

• Colorado Base Salary: $85,000–$120,000
• California Base Salary: $90,000–$130,000 for Long Beach
• Equity + Benefits including Health, Dental, Vision, HRA/HSA options, PTO and paid holidays, 401K, Parental Leave
• Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, location, and experience.
  
  

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.