ViaSat

Linux Administrator (Classified Systems) - Active Secret Clearance Required

ViaSat$121K — $191K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Cybersecurity, IT, Computer Science, or equivalent experience.
  • 6+ years of Linux administration experience, focusing on cybersecurity.
  • 4+ years in DoD or industrial security programs with expertise in RMF processes.
  • 2+ years of experience with virtualized infrastructure solutions like VMware or OpenShift.
  • Experience administering Trellix for endpoint protection.
  • Strong knowledge of core services such as Active Directory, DNS, and DHCP.
  • Active Secret Security Clearance required.

Responsibilities

  • Manage day-to-day configuration and maintenance of Linux solutions.
  • Perform system hardening and vulnerability management per DISA STIGs.
  • Conduct cybersecurity monitoring and incident response for Linux environments.
  • Develop and maintain security documentation including change control logs.
  • Conduct site self-assessments for compliance with standards.
  • Collaborate with DevOps to enhance operational efficiency and minimize risks.
  • Support the implementation of virtualized infrastructure and centralized storage.

Benefits

  • Comprehensive medical benefits and wellness programs.
  • Flexible scheduling options.
  • Opportunities for professional development and certifications.
  • Collaborative and diverse work environment.
  • Employee stock purchasing options and performance bonuses.
Full Job Description
What you'll do

We are seeking a highly skilled and motivated Linux Administrator to play a pivotal role in supporting and enhancing engineering functions within Viasat. This individual will focus on safeguarding Linux-based environments, ensuring compliance with critical security frameworks and policies, and enabling efficient operations to empower engineering teams. The role requires a balance of technical expertise, security diligence, and a proactive dedication to continuous improvement.

The day-to-day

  • Manage the day-to-day activities of configuring, maintaining, and fixing Linux-based solutions, ensuring security guidelines and compliance.
  • Perform system hardening and vulnerability management, aligning with DISA STIGs NIST 800-53, and other security standards.
  • Conduct cybersecurity monitoring, incident response, and analysis for Linux environments and classified systems.
  • Develop and maintain system security documentation, including change control logs, technical updates to Plan of Action and Milestones (POAMs), etc.
  • Complete system and account management activities such as configuration and periodic maintenance, responding to breach incidents as required.
  • Perform site self-assessments to ensure alignment with regulations, standards, and organizational directives.
  • Collaborate with DevOps teams to enhance operational efficiencies and minimize security risks.
  • Support implementation of virtualized infrastructure (e.g., VMware, Hyper-V, OpenShift) and centralized storage solutions such as NetApp.
  • Stay informed about evolving cybersecurity threats, emerging technologies, and updated RMF processes.
  • Provide technical guidance and mentorship to team members for the continuity of standard methodologies.

What you'll need

  • Bachelor's degree in Cybersecurity, Information Technology, Computer Science, or a related technical field; equivalent work experience will also be considered.
  • 6+ years of Linux administration experience (e.g., RHEL, Ubuntu), emphasizing a solid focus on cybersecurity and administration.
  • Over 4 years involved in DoD or industrial security programs, including demonstrated expertise in RMF processes.
  • 2+ years of experience in crafting, implementing, and managing virtualized infrastructure solutions such as VMware, Hyper-V, and OpenShift.
  • Administer Trellix for endpoint protection (ePO), signature updates, and alert resolution.
  • Proficient in maintaining and administering core environmental services (e.g., Active Directory/IdAM, GPOs, logging, monitoring, DNS, DHCP).
  • Experience operating and managing centralized storage platforms (e.g., NetApp) and related backup management services (e.g., Veeam).
  • Good attention to detail, skill in critical thinking and research, problem-solving abilities, and the ability to multitask in fast-paced environments.
  • Outstanding communication and writing skills that enable conveying technical details effectively to diverse collaborators.
  • Good ability to collaborate with multi-functional teams, encouraging a cohesive and productive work atmosphere.
  • You must be able to lift equipment (up to 40lbs) and work within controlled environments.
  • DoD 8140.01 Certification (e.g., CISSP, Security+).
  • Active Secret Security Clearance required.

What will help you on the job

  • Hands-on experience with container creation and deployment (e.g., Docker, LXD).
  • Familiarity with automation/orchestration tools (e.g., Ansible, Puppet) for system configuration and deployments.
  • Proficiency in security event monitoring tools like Splunk to evaluate risks and verify mitigation efforts.
  • Scripting or development skills to automate or update configurations and deployment of software, infrastructure (IaC), updates, etc.
  • Experience configuring and maintaining cross-domain solutions and secure enclaves.
  • Relevant certifications such as RHCE, RHCSA, LFCS, or equivalent.
  • Experience implementing or supporting AI-enabled automation, self-hosted large language models (LLMs), retrieval-augmented generation (RAG), or AI-assisted development platforms in enterprise or air-gapped environments.

Salary range

$121,000.00 - $191,000.00 / annually.For specific work locations within San Jose, the San Francisco Bay area and New York City metropolitan area, the base pay range for this role is $150,000.00- $225,000.00/ annually

At Viasat, we consider many factors when it comes to compensation, including the scope of the position as well as your background and experience. Base pay may vary depending on job-related knowledge, skills, and experience. Additional cash or stock incentives may be provided as part of the compensation package, in addition to a range of medical, financial, and/or other benefits, dependent on the position offered. Learn more about Viasat's comprehensive benefit offerings that are focused on your holistic health and wellness at https://careers.viasat.com/benefits.

About ViaSat

ViaSat is a global communications company that provides satellite and wireless networking technology, services, and solutions. The company was founded in 1986 and is headquartered in Carlsbad, California. ViaSat offers a range of products and services, including satellite broadband internet, in-flight Wi-Fi, and secure networking systems for government and military customers. The company has more than 6,200 employees and operates in over 50 countries. ViaSat is publicly traded on the NASDAQ stock exchange under the ticker symbol VSAT.
Learn more about ViaSat
Size
7,000 employees
Market Cap
$2.2 billion
Industry
Net Income
-$2 million
Founded
1986
5 Year Trend
+12.3%
Revenue
$2.2 billion
NASDAQ

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