UNKNOWN

FEED

Evaluate and integrate emerging cyber security technologies for production uses such as Domain Naming Service (DNS), routing, load balancers, data flow technologies, audit capturing tools and techniques, Host-Based Intrusion Detection System (HIDS), Network Intrusion Detection System (NIDS), Anti-Virus scanning, etc. Duties and Responsibilities: Perform tasks which span across network fabrics to perform commercial cloud support, customer help desk functions, software integration and migration, integration and testing, documentation development and maintenance, security, network and system monitoring, and configuration and release management.

Reflexive Concepts

Application Engineer IV

ea_via_bold

We have immediate hire openings for a Senior Cybersecurity Engineer to join our U.S. Navy Aircraft Carrier Engineering Team within the Portfolio Acquisition Executive (PAE) Maritime organization; supporting mission-critical systems and infrastructure and combining software and hardware knowledge to innovate and optimize performance. Compliant with applicable information assurance certification requirements in accordance with DFARS 252.239-7001 and Navy Cyber Workforce (CWF) Program - CWF Model Cyberspace Enablers: o Acquisition (801) Program Manager (Basic) or (803) Product Support Manager (Basic).

ICI Services Corp

Senior Cybersecurity Engineer

linkup_via_bold

The successful candidate will be responsible for maintaining a Red Hat Enterprise Linux infrastructure that will support multiple network enclaves; providing support for monthly vulnerability and compliance scanning across all enclaves; establishing new baseline systems for approved projects and providing Tier 3 support for escalated technical issues. In FY23 Leidos was awarded the Homeland Enterprise Information Technology Secure Services and Support (HEITS) follow-on contract to support and enhance the DHS networks, Homeland Secure Data Network (HSDN) and the Classified-Local Area Network (C-LAN).

Everything we do is built on our commitment to do the right thing for our customers, our employees, and our communities. Learn more about the values and culture that are the foundations of our business.

Leidos

Linux Engineer

sourcestack_via_bold

Experience conducting structured threat hunts based on threat intelligence, adversary behaviors, MITRE ATT&CK techniques, behavioral analytics, or identified security visibility gaps, and developing or tuning detection analytics using SIEM queries, behavioral rules, correlation logic, or detection-as-code methodologies. Experience with scripting or automation using technologies such as Python, PowerShell, Bash, SQL, or similar languages, and with security frameworks and guidance such as NIST SP 800-61, MITRE ATT&CK, Cyber Kill Chain, or ISO/IEC 27035.

Booz Allen is an advanced technology company. We build commercial-grade products and solutions for America’s most critical defense, civil, and national security priorities.

Booz Allen Hamilton

Signals and Defense Engineer, Mid

Evaluate and integrate emerging cyber security technologies for production uses such as Domain Naming Service (DNS), routing, load balancers, data flow technologies, audit capturing tools and techniques, Host-Based Intrusion Detection System (HIDS), Network Intrusion Detection System (NIDS), Anti-Virus scanning, etc. •Perform tasks which span across network fabrics to perform commercial cloud support, customer help desk functions, software integration and migration, integration and testing, documentation development and maintenance, security, network and system monitoring, and configuration and release management.

FLASH Technology Group

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. Onsite : If this position is listed as onsite, work will primarily be performed full-time at a customer facility, where employees will collaborate directly with colleagues and customers as required by the role.

Post Quantum Cryptography Engineer

You will work side-by-side with FAA Second Level Engineering (SLE) Book Owners inside physical and virtual lab environments to dry-run, test, and formally validate new or modified technical procedures before they are deployed to operational Air Route Traffic Control Centers (ARTCCs). Infrastructure Evaluation: Navigate, configure, and troubleshoot Red Hat Enterprise Linux (RHEL)/Unix operating systems, enterprise Cisco networking architectures, and extensive VMware to ensure instructions accurately mirror real-world target environments.

Systems Engineer Lead

Experience designing secure log-collection and forwarding architectures using APIs, agents, syslog, event streaming, object storage, message queues, or comparable technologies. Design secure log-collection and forwarding architectures using APIs, agents, syslog, event streaming, object storage, message queues, or comparable mechanisms.

Cloud Security Engineer

September 3, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Through the J6 Penetration Handling, Incident, System Health (PHISH) support services task order on the GSM-O contract, we provide IT products, services and solutions to the Pentagon and other DoD offices and agencies for them to meet mission and business requirements.

Lead Firewall Engineer

September 14, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Coordinate vulnerability remediation across Windows, Linux, network, desktop support and other engineering teams and provide hands-on support for complex or high-priority issues as needed.

Senior Security Engineer

YEAR

Signals and Defense Engineer, Senior

You'll collaborate closely with data scientists, systems engineers, and client stakeholders to evaluate emerging AI technologies, optimize network throughput, and ensure enterprise-grade security and reliability across diverse operational environments. By balancing innovation with architectural rigor, you will solve critical integration bottlenecks, establish MLOps best practices, and scale intelligent systems that empower clients to make data-driven decisions faster and more effectively.

Booz Allen Hamilton Inc.

AI Developer And Engineer

You’ll collaborate closely with data scientists, systems engineers, and client stakeholders to evaluate emerging AI technologies, optimize network throughput, and ensure enterprise-grade security and reliability across diverse operational environments. By balancing innovation with architectural rigor, you will solve critical integration bottlenecks, establish MLOps best practices, and scale intelligent systems that empower clients to make data-driven decisions faster and more effectively.

AI Developer and Engineer

Nice If You Have: Experience conducting structured threat hunts based on threat intelligence, adversary behaviors, MITRE ATT&CK techniques, behavioral analytics, or identified security visibility gaps, and developing or tuning detection analytics using SIEM queries, behavioral rules, correlation logic, or detection-as-code methodologies. Experience with scripting or automation using technologies such as Python, PowerShell, Bash, SQL, or similar languages, and with security frameworks and guidance such as NIST SP 800-61, MITRE ATT&CK, Cyber Kill Chain, or ISO/IEC 27035.

Signals And Defense Engineer, Mid

The role additionally supports the Debian-based Linux operating system (Debian 13 "trixie" on ARM hardware) that ships embedded in certain company products, partnering with Product Engineering and R&D on OS image build, hardening, patching, and field escalations. This position manages the Linux support queue and on-call rotation, mentors junior and mid-level engineers, and partners with Security, Network, Database, Applications, and Quality teams to sustain systems available, secure, compliant, and audit-ready in a 24x7x365 environment.

Meso Scale Discovery

Principal Linux Engineer

Network infrastructure engineering services are comprised of core infrastructure, voice and video engineering, field engineering, application management and development for networks, network analytics, firewalls, network access controls and bandwidth service delivery. About BAE Systems Intelligence & Security BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services.

BAE Systems Plc

Cyber Security Systems Engineer - Expert

Signals And Defense Engineer, Senior

FULL_TIME

OTHER

Riverwoods, IL: $179,400 - $204,700 for Security Engineer 4. McLean, VA: $197,300 - $225,100 for Security Engineer 4. Plano, TX: $179,400 - $204,700 for Security Engineer 4. Candidates hired to work in other locations will be subject to the pay range associated with that location, and the actual annualized salary amount offered to any candidate at the time of hire will be reflected solely in the candidate's offer letter. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation, please contact Capital One Recruiting at 1-800-304-9102 or via email at RecruitingAccommodation@capitalone.com.

Capital One

Security Engineer 4

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For 135 years, it has contributed to the development of the country's transportation systems including the Interstate Highway System and a vast network of roads, bridges, airports, metros, and railways. Plans, coordinates, and manages on-site construction engineering daily activities and schedules and communicates with subcontractors.

Why Lane? What separates us from others? The answer is simple…over 120 years of providing the finest quality projects in the nation through honest and dedicated workmanship while providing a safe work environment for our employees and business associates. Among our peers, Lane is noted for safety, dependability, performance and quality of workmanship. That’s a tough combination to beat considering that we have been doing it longer than most! We are the kind of construction firm that gives the industry high marks for community responsibility and involvement. At Lane we recognize our responsibility to support the communities where we live and work, and to be a good neighbor. Lane provides support in the form of donations of materials and services to organizations such as the Boy Scouts of America, Community Fire Departments, Little Leagues, Recreation and Community Associations, Schools and others. Our employees know the importance of civic and community involvement and how it reflects on the integrity of the company. Our company is committed to operating and conducting business in an environmentally responsible way. This responsibility of environmental stewardship rests with every level of the company, from management to trade workers and everyone in between. We are totally committed to maintaining a clean, healthy environment while continually improving environmental performance and preventing pollution. We believe this commitment is both good business and a benefit to our employees, their families, our customers and the communities we serve. The commitment is a primary objective of management and all employees. Visit our website to learn more! <a href="http://www.laneconstruct.com/Home" target="_blank">http://www.laneconstruct.com/Home</a>

The Lane Construction Corp

Project Engineer - VSL - Manassas, VA

Working knowledge of configuring, deploying, and maintaining Enterprise Cyber Security Engineering requirements utilizing the following Trellix Products: Endpoint Security (ENS), Data Loss Prevention (DLP), Policy Auditor, File Integrity Monitor (FIM) and Application Whitelisting. 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.

CACI provides information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. A member of the Fortune 1000 Largest Companies, the Russell 2000 Index, and the S&amp;P SmallCap 600 Index, CACI provides dynamic careers for over 15,800 employees working in over 120 offices worldwide. Visit <a href="http://www.caci.com" target="_blank" itemprop="url" mns_rt="Company">www.caci.com</a>. 
 
 We strive to sustain a corporate culture based on integrity - one that's focused on treating customers ethically and making their priorities our priorities. We pride ourselves in finding and hiring people with the highest intellectual capital, and providing them with challenging opportunities and encouraging their innovation and initiative.

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Systems Engineer Lead Leidos

Cloud Security Engineer Booz Allen Hamilton

Lead Firewall Engineer Leidos

Senior Security Engineer Leidos

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AI Developer And Engineer Booz Allen Hamilton Inc.

AI Developer and Engineer Booz Allen Hamilton

Signals And Defense Engineer, Mid Booz Allen Hamilton Inc.

Principal Linux Engineer Meso Scale Discovery

Cyber Security Systems Engineer - Expert BAE Systems Plc

Signals And Defense Engineer, Senior Booz Allen Hamilton Inc.

Security Engineer 4 Capital One

Project Engineer - VSL - Manassas, VA The Lane Construction Corp

Endpoint Engineer III CACI

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