Jobs in the United States

25+ jobs

Save this search

Added just now
LD
AI Software Systems Engineer II
Leonardo DRS, Inc.
Goleta, CA
- $91,907 to $119,480 USD / year
Leonardo DRS Land Systems is seeking a full time AI Software Systems Engineer II. This position is based out of our Goleta, CA facility and will have the option to work an in person or…
Added 7 mins ago
Flight Dynamics Engineer II
Rocket Lab Corporation
Long Beach, CA
As a Flight Dynamics Engineer II based out of Rocket Lab's headquarters in Long Beach, CA, you will perform tracking, navigation, maneuver, trajectory planning, and collision avoidance…
Added 18 mins ago
Software Engineer II - Equities Structured Products Technology
Bank of America, National Association
NY
Strong technical background with hands‑on experience in modern front‑office systems (e.g., Java, Python, C#, distributed systems, real‑time platforms)
Added 22 mins ago
Senior Technical Program Manager II - AI
Axon
WA
Hands-on Technical Depth: Background as a former ML researcher, engineer, or engineering manager. Ability to write Python scripts to evaluate, benchmark, or triage ML model performance.
Added 29 mins ago
Systems Engineer II
Scientific Research Corporation
North Charleston, SC
C++, Python, or other object-oriented programming language
Added 32 mins ago
Structural Response M&S Engineer
CFD Research Corporation
Huntsville, AL
Structural Response M&S Engineer (Huntsville, AL)
Added 51 mins ago
Information Systems Security Engineer (ISSE) Linux/RHEL
CACI
Sterling, VA · Sterling
Job Title: Information Systems Security Engineer (ISSE) Linux/RHEL
Added 51 mins ago
RA
Staff Platform Integration Engineer
Rivian and Volkswagen Group Technologies
Palo Alto, CA · Irvine, CA
- $186,000 to $255,750 USD / year
As a test-focused Platform Integration Engineer on the Connectivity and Infotainment software team at Rivian and Volkswagen Group Technologies, you will own the end-to-end BSP test and…
Added 54 mins ago
Software Engineer
Luna Innovations
Chino, CA
We are seeking a Software Engineer II, with flexibility to hire at the Senior level for the right candidate, to join the software development team for our photonics instrumentation. Final…
Added 57 mins ago
C
Software QA Engineer II (Full Time) - United States
Cisco
Richardson, TX
- Full-time
As a QA / Automation Engineer, you will contribute to validating Cisco’s wireless platforms by writing test plans, developing automation, and analyzing system behavior. You will gain…
Added 1 hour ago
Information Systems Security Engineer (ISSE) Linux/RHEL
CACI, INC.-FEDERAL
Sterling, VA
Job Title: Information Systems Security Engineer (ISSE) Linux/RHEL
Added 1 hour ago
Systems Engineer
Radiance Technologies, Inc.
Beavercreek, OH
We are seeking a highly qualified Systems Engineer to join a mission-focused team that designs, engineers, and sustains applications, services, microservices, Platform as a Service (PaaS),…
Added 1 hour ago
Machine Learning Engineer
ADT
Boca Raton, FL · Irving, TX
As an ML Engineer II on the AI, Automation & Data team, you will independently design, deploy, operate, and continuously improve production machine learning, generative AI, and…
Added 1 hour ago
Test Engineer III | Launch and Test Operations (Ground Software)
Blue Origin Personnel, LLC
Space Coast, FL
We are seeking a hands-on, detail-oriented Launch & Test Engineer to join our OLS Test Operations team within the Launch Site Execution (LSE) branch of the Launch Operations Division at…
Added 1 hour ago
Fluid/Pump Test Engineer II - Lunar Permanence
Blue Origin Personnel, LLC
United States
…and working in space to benefit Earth. As the Fluid/Pump Test Engineer, you will support test design and test execution for fluids components across our Lunar Lander product…
Added 1 hour ago
Senior DevOps Engineer – Cloud Infrastructure & Core Services
DAn Solutions
Washington, DC
DAn Solutions is seeking a Senior DevOps Engineer to design, automate, deploy, and maintain secure cloud infrastructure supporting mission applications and enterprise services.
Added 1 hour ago
Cloud Engineer II- AWS
Honeywell
Pittsford, NY · Atlanta, GA · Framingham, MA
Do you enjoy working from the customer perspective and diving deep on issues? As a system development engineer, you will be responsible for the overall health of our AWS cloud-based managed…
Added 2 hours ago
Health Care Analytics and Insights Engineer II
Deloitte
Rosslyn, VA
As an Analytics and Insights Engineer II on the Deloitte AI & Engineering team, you will be responsible for:
Added 2 hours ago
A
Nuclear Instrumentation & Controls Engineer
Antares
Los Angeles, CA
- $125,000 to $210,000 USD / year
Antares is seeking a Nuclear Instrumentation & Controls Engineer to support the development, integration, testing, and qualification of nuclear measurement systems and reactor…
Added 3 hours ago
Software Engineer II
Reflexive Concepts
Hanover, MD
Reflexive Concepts is seeking a skilled Software Engineer II to join our growing team!
Added 3 hours ago
DevOps Engineer
Lockheed Martin
Hanover, MD · MD · Elkridge
Operating Systems & Administration: Linux system administration (RHEL / CentOS, etc.); scripting with Python / Bash.
Added 4 hours ago
Sr. Backend Software Engineer (Infrastructure ML Ops)
Philo
San Francisco, CA · Brooklyn, NY · Cambridge, MA
SENIOR BACKEND SOFTWARE ENGINEER (INFRASTRUCTURE MLOPS)
Added 4 hours ago
Software Engineer II - AI/ML
JPMC page
Plano, TX
As a Software Engineer at JPMorganChase within the Consumer & Community Banking-Home Lending Servicing group, you are an integral part of an agile team that works to enhance, build, and…
Added 4 hours ago
SD
1788 - Application Systems Integration Engineer II
Sigma Defense
San Diego, CA
- $75,000 to $115,000 USD / year
Sigma Defense is seeking an Application Systems Integration Engineer II to join our team in San Diego, CA. The Integration Engineer (IE) is responsible for providing detailed integration…
Added 4 hours ago
Entry-Level Systems Engineer
Black River Systems Co., Inc
Lakeville, MN
…headquartered in Utica, NY, is looking for an Entry Level Systems Engineer to help us design and analyze state-of- the-art radar and electro-optical sensor systems. The candidate should…

CACI

Information Systems Security Engineer (ISSE) Linux/RHEL

Sterling, VA, United States
Sterling, United States

$86,600 - $181,800 · Full-time

Apply About employer

Applications open in a new tab.

Job details

Pay: $86,600 - $181,800
Job type: Full-time
Apply by: Apr 27, 2027
Experience: Minimum 2 years of hands-on Linux administration experience, preferably with RHEL 8/9
Posting language: English
Posted: Oct 29, 2026

Original job description

Job Title: Information Systems Security Engineer (ISSE) Linux/RHEL

Job Category: Security

Time Type: Full time

Minimum Clearance Required to Start: TS/SCI

Employee Type: Regular

Percentage of Travel Required: Up to 25%

Type of Travel: Continental US

The Opportunity:

We are seeking a highly motivated, Linux-focused Information Systems Security Engineer (ISSE) to support the security, accreditation, and continuous monitoring of mission-critical systems operating within classified environments. The ideal candidate combines cybersecurity engineering expertise with hands-on Red Hat Enterprise Linux (RHEL) administration skills. This position requires an individual comfortable working directly with Linux systems to implement security controls, troubleshoot configurations, remediate vulnerabilities, and support Risk Management Framework (RMF) compliance. Working alongside systems engineers, software developers, and cybersecurity professionals, you will help design, implement, and maintain secure solutions supporting critical national security missions. This position requires onsite support 100% of the time in Sterling, VA. Domestic and international travel opportunities may be available.

Responsibilities:

Perform hands-on security engineering, configuration, troubleshooting, and hardening of Red Hat Enterprise Linux (RHEL) systems Implement, validate, and maintain DISA STIG compliance, including executing SCAP scans, analyzing findings, and remediating security vulnerabilities Troubleshoot Linux security configurations involving SELinux, SSH, permissions, authentication, system services, and networking Lead and support Assessment and Authorization (A&A) activities to achieve and maintain Authorization to Operate (ATO) under the Risk Management Framework (RMF) Develop and maintain security documentation, including System Security Plans (SSPs), Security Assessment Reports (SARs), Security Control Traceability Matrices (SCTMs), and Plans of Action and Milestones (POA&Ms) Conduct security assessments and continuous monitoring activities aligned with ICD 503, NIST 800-53, CNSSI, and applicable DoD requirements Collaborate with systems, network, software, and DevOps engineers to integrate security requirements throughout the System Development Life Cycle (SDLC) Evaluate system architectures, infrastructure changes, and software configurations to identify security risks and recommend mitigations Develop Bash or Python scripts to automate security compliance, vulnerability assessments, and routine administrative tasks.

Qualifications:

Required:

Required 5+ years of combined experience in cybersecurity engineering, information assurance, Linux systems administration, or related technical disciplines Minimum 2 years of hands-on Linux administration experience, preferably with RHEL 8/9 Practical Linux command-line proficiency, including filesystem management, permissions, user administration, package management (DNF/YUM), systemd services, log analysis, SSH, and basic network troubleshooting Experience implementing Linux DISA STIGs, executing SCAP scans, and performing vulnerability remediation Working knowledge of Linux security technologies, including SELinux, firewalld, authentication, and access controls Experience with Bash scripting and/or Python for system administration or security automation Strong understanding of RMF, ICD 503, NIST 800-53, and the ATO lifecycle DoD 8570/8140 IAT Level II certification (Security+ CE, CySA+, SSCP, or equivalent applicable certification) Bachelor's degree in a technical discipline or equivalent relevant experience Active Top Secret clearance with SCI eligibility.

Desired:

Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) certification. Experience supporting RHEL systems in classified, disconnected, or air-gapped environments. Familiarity with Puppet, Ansible, Red Hat Satellite, or Red Hat Identity Management (IdM/FreeIPA). Experience with ACAS, Nessus, SCAP Compliance Checker, or similar vulnerability assessment tools Experience with Git, GitLab, DevSecOps, and automated compliance solutions Experience supporting Cross Domain Solutions (CDS) or other highly secure mission systems Advanced cybersecurity certifications such as CISSP or CASP+

What You Can Expect:

A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.

Pay Range:

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The proposed salary range for this position is:

$86,600 - $181,800

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

Apply About employer

Report this job