Cross Domain Solution Support Linux Engineer, Senior

Booz Allen Hamilton; Monterey (CA); On-site; USD 78,000 - 176,000; Full time

Job summary

Booz Allen Hamilton is seeking a Senior Cross Domain Solution Linux Engineer to administer Red Hat Linux systems, harden security, and support cross-domain environments in a DoD context. You will work in a classified setting to maintain critical infrastructure that transfers petabytes of data for high-performance computing, with emphasis on RMF compliance and CDS operations.

The role requires TS clearance, strong Linux expertise, and experience with cross-domain solutions; Everfox HGS/TGS

Qualifications

• 3+ years of experience administering Red Hat Linux systems in a large enterprise data center.
• Experience with cybersecurity hardening and RMF requirements.
• Experience in classified environments.
• Knowledge of Apache NiFi and configuration.
• Top Secret clearance and HS diploma or GED.
• Security+ CE certification is a plus.

Responsibilities

• Maintain and harden Linux infrastructure for cross-domain solutions.
• Monitor and manage performance and security of critical IT systems.
• Ensure confidentiality, integrity, and availability of data.
• Collaborate with customers and teams to resolve issues.
• Prepare metrics and reports on system health.

Skills

Red Hat Linux

System administration

Cybersecurity hardening

RMF cybersecurity

Classified environment experience

Apache NiFi

Education

HS diploma or GED

COMPTIA Security+ CE

Top Secret clearance

Tools

Apache NiFi

Everfox High-Speed Guard

Everfox Trusted Gateway Solutions

Job description

## Cross Domain Solution Support Linux Engineer, SeniorApplylocations: Monterey, CAtime type: Full timeposted on: Posted Yesterdaytime left to apply: End Date: November 3, 2026 (30+ days left to apply)job requisition id: R0246219Cross Domain Solution Support Linux Engineer, Senior**The Opportunity:**Your combination of people skills and system administrator knowledge makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting DoW mission systems? We’re looking for a system administrator with experience managing Linux systems to help us maintain critical infrastructure used to generate and maintain environmental intelligence and data supporting fleet safety.As a system administrator on our team, you’ll help ensure the confidentiality, integrity, and availability of Navy meteorological and oceanographic data through the maintenance, cyber hardening, and configuration of critical IT systems, in particular to include cross-domain solutions (CDS). You’ll help clients overcome tough challenges through monitoring and performance management. Your knowledge will be vital as you identify problem areas and opportunities for improvement in a mission-critical network. Your communication skills will come in handy as you turn metrics into information and articulate their meaning.This is an opportunity to gain experience in managing IT infrastructure supporting the transfer of petabytes of data used for high-performance computing. We focus on growing as a team, so we’ll share techniques, work through challenges, and develop new methodologies together. Work with us and resolve daily challenges as we improve the safety and effectiveness of DoW missions.Join us. The world can’t wait.**You Have:*** 3+ years of experience administering Red Hat Linux Systems in a moderate-to-large enterprise data center setting* 3+ years of experience conducting cybersecurity hardening and system maintenance in accord with Federal or DoW RMF cybersecurity accreditation and authorization requirements* Experience supporting IT systems in a classified environment* Knowledge of Apache NiFi, its software components, and configuration* Top Secret clearance* HS diploma or GED* Systems administration certification such as COMPTIA Security+ CE**Nice If You Have:*** Experience managing and on-premise configuring cross-domain solution (CDS) hardware and software* Experience with Everfox High-Speed Guard (HGS) and Everfox Trusted Gateway Solutions (TGS) systems* TS/SCI clearance**Clearance:**Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; Top Secret clearance is required.**Compensation**At Booz Allen, we celebrate your contributions, provide you with opportunities and choices, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, work-life programs, and dependent care. Our recognition awards program acknowledges employees for exceptional performance and superior demonstration of our values. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in Booz Allen’s benefit programs. Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits. We encourage you to learn more about our total benefits by visiting the Resource page on our Careers site and reviewing Our Employee Benefits page.Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. The projected compensation range for this position is $77,600.00 to $176,000.00 (annualized USD). The estimate displayed represents the typical salary range for this position and is just one component of Booz Allen’s total compensation package for employees. This posting will close within 90 days from the Posting Date.**Identity Statement**As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during interviews and assessments. We reserve the right to take your picture to verify your identity and prevent fraud.**Candidate AI Usage Policy**AI is a part of our daily work at Booz Allen, and we are committed to the responsible and ethical use of AI tools. However, we want to ensure a fair candidate process based on **your** own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) or other tools to assist with responses during interviews (whether in-person or virtual) is prohibited **unless permission is explicitly provided**.**Work Model** Our people-first culture prioritizes the benefits of collaboration, whether it occurs in person or virtually. To support engagement and effective communication, employees working virtually are generally expected to have their cameras on during meetings.* **Remote**: If this position is listed as remote, there may still be occasions when you are required to work in person at a Booz Allen or customer facility.* **Hybrid**: If this position is listed as hybrid, you will be expected to work from a Booz Allen facility frequently, in alignment with leadership expectations and the needs of the role. You may also be required to work from or visit a customer facility.* **Onsite**: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role.