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Added 5 mins ago
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Senior Cloud Security Engineer - R01573020
Brillio
NY
- $120,000 to $130,000 USD / year
Security Enablement: Guide and educate development teams on security best practices, vulnerability remediation, and effective risk mitigation strategies.
Added 6 mins ago
Security Engineer - Product Security
Spotify
Remote, United States
…exploited, we're evolving how Spotify responds. We're looking for a Security Engineer to help transform vulnerability findings into reliable, actionable code improvements using agentic AI.…
Added 7 mins ago
Software Dev Engineer I, Security Platform
Twitch Interactive, Inc.
Seattle, WA · Irvine, CA · San Francisco, CA
This role is ideal for an engineer who learns quickly, values operational excellence, and wants to see their work directly improve Twitch's security posture.
Added 13 mins ago
Cybersecurity Reliability Engineer 3 - Vulnerability Management
CHN Choice Hotels International Services
United States
…exciting new opportunity as our Level 3 Cybersecurity Reliability Engineer – IT (Vulnerability Management) in the Information Security / Security Operations. The Information Security /…
Added 22 mins ago
Information System Security Engineer (ISSE) - Alexandria, VA
Military Spouse Jobs & VetJobs
United States
Akima Data Management (ADM) is seeking a highly skilled and mission‑driven Information System Security Engineer (ISSE) to design, engineer, and validate cybersecurity capabilities across…
Added 23 mins ago
Senior Systems & Network Infrastructure Engineer
DigitalCM LLC
Tampa, FL
DigitalCM is seeking an experienced, hands-on Senior Systems & Network Infrastructure Engineer to design, deploy, secure, maintain, and improve the infrastructure supporting our software…
Added 24 mins ago
AI/ML Automation Engineer/Developer (Jr, Mid and Sr.)
Parsons Technical Services, Inc.
MD
Bring AI-enabled automation and advanced analytics to vulnerability-campaign tooling.
Added 37 mins ago
Telecom Systems Engineer
VELCO Vermont Electric Power Company, Inc.
Rutland, VT
…supports critical utility operations. As a Telecom Systems Engineer, you will play a key role in ensuring the availability, security, and performance of the communications systems that…
Added 45 mins ago
Security Engineer – Network & Infrastructure Security
Amplity Inc
Remote, United States
We are seeking an experienced Security Engineer to join our IT Security team, with strong expertise in network security, firewall technologies, and secure infrastructure.
Added 59 mins ago
SecOps Engineer
Open Approach
Burlington, VT
You'll serve as the primary escalation point for our Security Operations Analyst. When things get complex, they will come to you. You will own the deeper investigations, lead advanced…
Added 1 hour ago
Cybersecurity Lead Engineer/Architect
GCM Grosvenor
Chicago, IL
The Cybersecurity Lead Engineer/Architect is the firm’s most senior individual contributor in security, joining a lean security operations team responsible for the continued evolution,…
Added 1 hour ago
Linux Engineer
Samsung SDS America
Plano, TX
We are seeking a Linux Infrastructure Engineer to manage, optimize, and secure enterprise Linux environments across on-premises data centers and public cloud platforms. This role focuses on…
Added 1 hour ago
Senior Infrastructure Security Engineer
Federato
Remote, United States
Improve Secure Software Development Lifecycle, make improvements to our Software Development Lifecycle to improve security: vulnerability scanning, remediation process; ensuring that…
Added 1 hour ago
Sr. Cybersecurity Systems Engineer
LEIDOS, INC.
Linthicum Heights, MD
Perform cybersecurity high assurance evaluation activities to include reviews of security evaluation documents and other high assurance artifacts/documents for devices undergoing…
Added 1 hour ago
TZ
Cloud Security Engineer - part-time (R-00250)
True Zero Technologies
Remote, United States
- Part-time
True Zero Technologies is seeking an experienced Cloud Security Engineer to support the design, implementation, monitoring, and continuous improvement of security capabilities across…
Added 1 hour ago
Senior Software Engineer, Pentest Experience
Horizon3
Remote, United States
- Experience building products or platforms in vulnerability management, exposure management, security telemetry, or related cybersecurity domains
Added 1 hour ago
Cloud Patch Engineer
NTT DATA Services
jacksonvile, FL
NTT DATA is seeking a Cloud Patch Engineer to support enterprise patch management, automation, and vulnerability remediation across Linux, Windows, and cloud environments.
Added 1 hour ago
Web Hosting Security Engineer(Hybrid)
NTT DATA Americas, Inc.
Jacksonville
We are currently seeking a Web Hosting Security Engineer(Hybrid) to join our team in Jacksonville, Florida (US-FL), United States (US).
Added 1 hour ago
Database Engineer (Oracle)
NTT DATA Americas, Inc.
Jacksonville
3+ years of experience performing database vulnerability patching, remediation, and security updates in production environments
Added 1 hour ago
DevSecOps Engineer (CI/CD & FluxCD)
Zaden Technologies, Inc.
Huntsville, AL
Zaden Technologies is seeking a DevSecOps Engineer to lead CI/CD automation and GitOps delivery within our software factory environments. This role focuses on building secure, automated…
Added 1 hour ago
W
Applications Engineer 4 – DevOps
Wyetech
Linthicum Heights, MD
- $91.22 to $123.52 USD / hour
The DevOps Engineer will facilitate infrastructure management, continuous integration, environment configuration and deployment as well as supporting the project’s compliance and security…
Added 1 hour ago
Staff Agentic Data Engineer – Data Platform
Nucleus Security
Remote, United States
Nucleus' primary mission is to create a fast, scalable platform that brings together large volumes of security data and transforms it into actionable insights, making vulnerability…
Added 1 hour ago
Senior Product Manager, AI & Query Platform
Nucleus Security
Remote, United States
Develop a deep understanding of how security teams work with vulnerability and exposure data and identify opportunities where AI and better data interaction can fundamentally improve those…
Added 1 hour ago
Information Assurance/Security Engineer Manager
Peraton
Remote, United States
Peraton is seeking an Information Assurance/Security Engineer Manager to join our team of qualified, diverse individuals. The ideal candidate will support the Department of Homeland…
Added 2 hours ago
Sr. Principal Software Engineer
Insight Global
Round Rock, TX
DevOps and security tooling experience - vulnerability scanning, remediation, security integrations

LLNL

Information Systems Security Engineer - ACTIVE SECURITY CLEARANCE REQUIRED

Livermore, CA, United States

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Job details

Pay: Pay Range $175.530 - $267,030 Annually $175,530 - $222,564 Annually for the SES.3 level $210,630 - $267,030 Annually for the SES.4 level This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting.
Posting language: English
Posted: Nov 4, 2026

Original job description

Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and promote global stability. Our mission spans four critical national security areas nuclear deterrence, threat preparedness, energy security, and multi-domain defense empowering teams to take on the toughest challenges of today and tomorrow. With a culture built on innovation and operational excellence, LLNL is a place where your expertise can make a real impact.

Job Description

We have an opening for an Information Systems Security Engineer to provide cyber and technical support for classified networks, standalone systems, security systems, security tools for vulnerability management, patch management, and auditing. You will manage complex security plans and component configurations, maintain cyber security tools, lead incident response, and lead large scale computer security projects. You will interact regularly with team members, customers, management, and sponsors to solve a variety of complex cyber problems in a timely manner. This position is in the Information Technology Solutions (ITS) Division supporting the Field Intelligence Element (FIE) within the Computing Directorate. This position requires full-time on-site presence due to the nature of the work. This position will be filled at either level based on knowledge and related experience as assessed by the hiring team. Additional job responsibilities (outlined below) will be assigned if hired at the higher level. You will

Serve in the Information Systems Security Engineer (ISSE) role as the author and owner of comprehensive cyber security document packages.
Plan, design, and evaluate complex cybersecurity solutions.
Perform computer security tasks such as vulnerability remediation, audit of computer logs, and creation of documentation on policies, procedures, test plans, and risk analyses.
Inspect information systems to verify compliance and work closely with system administrators to maintain security and accreditation status.
Collaborate with customers in the design of their computing environment and security management processes.
Research solutions and manage cyber-security related projects with a diverse scope over multiple environments.
Perform other duties as assigned.

Additional job responsibilities, at the SES.4 level

Partner with the FIE Cyber Manager to assist with collaboration and negotiation with internal and external stakeholders, including LLNL, DOE, and other agencies, to identify, prioritize, and oversee implementation of information system security solutions that meet mission requirements.
Provide security architecture guidance and oversight to ensure information systems are designed and engineered in compliance with LLNL, DOE, and external customer requirements, and that they meet programmatic risk and authorization objectives.
Establish priorities, allocate resources, manage schedules, and deliver complex cybersecurity projects within required cost and time constraints.

Qualifications

This position requires an active Department of Energy (DOE) Q-level clearance or active Top Secret clearance issued by another U.S. government agency at the time of hire.
Bachelor’s degree in Computer Science, Computer and Network Security, Engineering, Business, Information Systems, or related field.
Experience with cloud computing environments and/or artificial intelligence, including large language models (LLMs), their security considerations, implementation, and practical applications.
Advanced knowledge of cyber-related tools for auditing, compliance verification, vulnerability testing, and continuous system monitoring.
Significant experience setting priorities and solving complex problems in a fast-paced, customer-focused team environment.
Advanced knowledge of computer security principles, practices, and procedures with experience independently applying this expertise to analyze complex cybersecurity risks and develop technically sound solutions.
Ability to work in a dynamic, technical team environment with competing priorities and meet deadlines that are important to project success.
Experience approaching difficult problems with enthusiasm and creativity, and to change focus when necessary.
Advanced verbal and written communication skills necessary to collaborate multidisciplinary teams to influence technical decisions and document, present and explain complex cybersecurity risks, findings, and recommendations.

Additional qualifications at the SES.4 level

Expert-level experience providing strategic technical leadership to resolve highly complex, ambiguous cybersecurity challenges with significant organizational or programmatic impact; integrating conflicting technical, operational, and stakeholder requirements to establish innovative, risk-informed solutions, technical direction, and long-term security approaches.
Expert verbal and written communication skills, with experience providing strategic technical advice to senior management, sponsors, and multidisciplinary teams; influencing consequential cybersecurity decisions.
Subject matter expertise in interpreting and implementing DOE, DoD, and Intelligence Community security policies and requirements in classified environments to support system authorization and ongoing security compliance.

Qualifications We Desire

Professional IT/Cyber certification (e.g., CISSP, CISM, SANS Certification).

Pay Range $175.530 - $267,030 Annually $175,530 - $222,564 Annually for the SES.3 level $210,630 - $267,030 Annually for the SES.4 level This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. An employee’s position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. Additional Information

Position Information This is a Career Indefinite position, open to Lab employees and external candidates.

Why Lawrence Livermore National Laboratory?

Included in 2026 Best Places to Work by Glassdoor!
Flexible Benefits Package
401(k)
Relocation Assistance
Education Reimbursement Program
Flexible schedules (*depending on project needs)
Our values - visit https://www.llnl.gov/inclusion/our-values

Security Clearance This position requires an active Department of Energy (DOE) Q-level clearance or active Top Secret clearance issued by another U.S. government agency at time of hire. Also, you must have the ability to obtain and maintain Sensitive Compartmented Information (SCI) access. Please note that your current active Q or Top Secret clearance with DOE or another agency does not guarantee DOE SCI access approval; if you are denied access, you may be subject to reinvestigation of your existing Q or Top Secret Clearance.

Pre-Employment Drug Test External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor.

Wireless and Medical Devices Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices. If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit/Buffer Space within buildings.

How to identify fake job advertisements Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under “Find Your Job” of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond. To learn more about recruitment scams: https://www.llnl.gov/sites/www/files/2023-05/LLNL-Job-Fraud-Statement-Updated-4.26.23.pdf

Equal Employment Opportunity We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws. Reasonable Accommodation Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory. If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request.

California Privacy Notice The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.

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More about this job

Skills

Technical support
Building systems monitoring technology
Auditing
Cybersecurity
Incident response
Computer technology
Documentation
Regulatory compliance
Research
Collaboration
Negotiation
Computer science
Meet deadlines
Communication skills
Leadership
CISSP
CISM

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