Kratos Defense and Security Solutions

Senior Security System Administrator

Kratos Defense and Security Solutions • $95K — $115K *
Orlando, FL 32828In-Person
Information Technology
Less than 5 years of experience
Today
Be an Early Applicant
Job Overview by Ladders

Qualifications

  • Current DoW Secret Security Clearance or ability to obtain one
  • BS in Information Technology, Cybersecurity, or a related field
  • 3-5 years of systems administration or cybersecurity experience, particularly in Windows and Linux environments
  • Industry Certification meeting DoDD 8140.03 IAT II requirements (e.g., Security+, CASP+)
  • Strong communication skills and ability to manage competing priorities
  • Independent problem-solving capabilities and teamwork skills

Responsibilities

  • Administer and maintain physical and virtual Windows and Linux servers
  • Implement and monitor secure configurations for operating systems and applications
  • Manage Microsoft Active Directory and authentication mechanisms
  • Support vulnerability assessments and facilitate remediation activities
  • Participate in security audits and develop security documentation
  • Automate system administration tasks using scripts or automation tools
  • Maintain awareness of emerging security threats and technologies

Benefits

  • Opportunities for professional development
  • Supportive work environment promoting teamwork
  • Exposure to advanced cybersecurity technologies
  • Participation in high-stakes security assessments
  • Chance to contribute to impactful government projects
Full Job Description
Kratos has an exciting opportunity for an onsite Security System Administrator. The Security System Administrator will work closely with cybersecurity compliance personnel to implement security controls, maintain secure configurations, identify and remediate vulnerabilities, support security assessments, and provide technical evidence demonstrating effective implementation of security requirements derived from the Risk Management Framework (RMF) and Cybersecurity Maturity Model Certification (CMMC).

Security System Administration Knowledge, Skills, and Responsibilities
  • Administer and maintain physical and virtual Windows and Linux servers and associated infrastructure.
  • Configure, secure, monitor, troubleshoot, and maintain operating systems, applications, virtualization platforms, and network devices.
  • Administer Microsoft Active Directory, Group Policy, user and computer accounts, authentication mechanisms, and access controls.
  • Manage Linux systems, including user access, services, package management, SSH, system security, logging, and security configurations.
  • Administer and maintain virtualization infrastructure, including virtual machines, hypervisors, virtual networking, and associated security controls.
  • Configure and maintain network infrastructure, including switches, VLANs, and ACLs, and other security-related network technologies.
  • Implement and maintain secure configuration baselines for operating systems, applications, network devices, and virtualization platforms.
  • Apply security patches, updates, and configuration changes in accordance with established patch management procedures.
  • Support vulnerability assessments and remediate identified vulnerabilities within established timelines.
  • Support incident response activities, including identification, containment, investigation, remediation, and recovery.
  • Implement and maintain access controls based on least privilege and separation-of-duties principles.
  • Manage privileged and administrative accounts and support periodic access reviews.
  • Support the implementation and ongoing operation of security controls required by NIST 800-53, NIST 800-171, and NN-801.
  • Assist with NN-801 assessments and provide technical evidence demonstrating implementation and effectiveness of security controls.
  • Support activities in the development and maintenance of System Security Plans (SSPs), Plans of Action and Milestones (POA&Ms), configuration documentation, network diagrams, asset inventories, and other cybersecurity documentation.
  • Maintain accurate records of system configurations and administrative actions.
  • Develop and maintain scripts and automation to improve system administration, security validation, compliance monitoring, and evidence collection.
  • Participate in security reviews, configuration audits, vulnerability assessments, penetration testing activities, and other cybersecurity assessments.
  • Troubleshoot complex problems spanning operating systems, applications, virtualization, networking, authentication, and security technologies.
  • Ensure system changes are appropriately tested, documented, authorized, and implemented.
  • Maintain awareness of emerging vulnerabilities, security threats, technologies, and applicable cybersecurity requirements.
  • Perform other duties related to the secure operation and maintenance of the enclave as assigned.


  • Current or ability to obtain a DoW Secret (or Interim Secret) Security Clearance
  • BS in Information Technology, Cybersecurity, or similar subject
  • 3-5 years of hands-on systems administration or cybersecurity experience preferred, with experience supporting Windows and Linux environments, preferably supporting a government customer
  • Industry Certification to meet DoDD 8140.03 IAT II requirements. (Security+, CASP+, etc.)
  • Ability to execute, manage, and coordinate technically complex changes on an operational IT system
  • Strong interpersonal and communication skills; ability to triage competing priorities, train users as needed on various topics, and interact positively with management and end-users
  • Independent problem-solving, self-direction
  • Works well independently and on a team

Preferred Skills/Experience
  • Experience administering systems within a CUI or otherwise regulated environment
  • Experience implementing or maintaining NIST SP 800-171 controls
  • Experience supporting NIST SP 800-171A or similar cybersecurity assessments
  • Experience with DISA STIGs and/or other system-hardening standards
  • Experience with DISA/DoW cybersecurity tools such as SCAP Compliance Checker, EvaluateSTIG, and STIG Viewer
  • Experience with VMware, Hyper-V, or other enterprise virtualization platforms
  • Experience with enterprise firewalls and managed network switches
  • Experience developing PowerShell, Bash, or Python automation

#LI-Onsite

Competitive salary based on experience and education

About Kratos Defense and Security Solutions

Kratos Defense & Security Solutions, Inc. provides mission critical products, solutions, and services in the United States. The company operates through three segments: Kratos Government Solutions, Unmanned Systems, and Public Safety & Security. The Kratos Government Solutions segment offers microwave electronic products, satellite communications, training systems, modular systems, and defense and rocket support services. The Unmanned Systems segment provides unmanned aerial, ground, and seaborne, as well as command, control, and communications systems. The Public Safety & Security segment designs, engineers, deploys, operates, integrates, maintains, and operates security and surveillance solutions for homeland security, public safety, critical infrastructure, government, and commercial customers. The company serves national security related agencies, the department of defense, intelligence agencies, and classified agencies, as well as international government agencies and domestic and international commercial customers; and critical infrastructure, power generation, power transport, nuclear energy, financial, IT, healthcare, education, transportation, and petro-chemical industries, as well as government and military customers. Kratos Defense & Security Solutions, Inc. was founded in 1994 and is headquartered in San Diego, California.
Learn more about Kratos Defense and Security Solutions
Size
3,300 employees
Market Cap
$1.1 billion
Industry
Aerospace & Defense
Net Income
$79.6 million
Founded
1994
5 Year Trend
+8.4%
Revenue
$747.6 million
NASDAQ
KTOS
* Ladders Estimates

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