Network Security Engineer Jobs in Virginia

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Information Systems Security Engineer

Data Intelligence LLC.

•

Vienna, Virginia, USA

Full-time

Data Intelligence, LLC is seeking a skilled Information Systems Security Engineer (ISSE) to support a top-tier federal client engaged in national security and counterterrorism operations. This full-time position, based in Vienna, VA, plays a critical role in securing complex IT systems in a high-visibility, mission-driven environment. The selected candidate will work closely with government and contractor stakeholders to ensure compliance, manage risk, and defend against evolving cyber threats.
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Posted 15 days ago | Updated 15 days ago

Information Security Engineer

Eliassen Group

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Anywhere, US

Contract

Description: **100% Remote** We prioritize the security and integrity of our digital infrastructure. We are seeking a skilled Information Security Engineer to join our team and help us maintain a secure and compliant IT environment. As an Information Security Engineer, you will be responsible for supporting day-to-day data security operations. You will ensure the availability and integrity of our security and networking infrastructure, monitor compliance with IT security policies, and coordin
Posted 14 days ago | Updated 10 hours ago

Senior Endpoint Security Engineer

Costar Group

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Arlington, Virginia, USA

Full-time

Senior Endpoint Security Engineer Job Description Overview CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world's real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. We have been living and breathing the world of real estate inf
Posted 43 days ago | Updated 10 hours ago

Lead, Chief SATCOM Systems Engineer (Security Clearance Required)

Harris Corporation

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Dulles, Virginia, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie
Posted 40 days ago | Updated 10 hours ago

Information Systems Security Engineer (ISSE)

Nightwing

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Sterling, Virginia, USA

Full-time

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th
Posted 5 days ago | Updated 10 hours ago

Microservices engineer- API / Security

HCL America Inc.

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Remote

Full-time

We are HCLTech, one of the fastest-growing large tech companies in the world and home to 218,000 people across 60 countries, supercharging progress through industry-leading capabilities centered around Digital, Engineering and Cloud. ( ) The driving force behind that work, our people, are diverse, creative, and passionate, raising the bar for excellence on a regular basis. We, in turn, work hard to bring out the best in them as we strive to help them find their spark and become the best version
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Posted 18 days ago

Senior Security Engineer

Request Technology, LLC

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Remote

Full-time

Senior Security Engineer Salary: Open + Bonus + Stock Options Location: Remote *We are unable to provide sponsorship for this role* Qualifications Product security or endpoint-focused consulting, with hands-on testing of Windows-based agents or EDR/AV productsExperience building fuzzers or integrating existing fuzzing frameworks for native codeExperience and capability in building automated test harnesses from the ground upStrong Windows OS internals knowledge, especially user-mode hooking and W
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Posted 36 days ago | Updated 1 day ago

Sr. Security Systems Engineer, DC Security Solutions Engineering

Amazon Data Services, Inc.

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Herndon, Virginia, USA

Full-time

AWS Infrastructure Services owns the design, planning, delivery, and operation of all AWS global infrastructure. In other words, we're the people who keep the cloud running. We support all AWS data centers and all of the servers, storage, networking, power, and cooling equipment that ensure our customers have continual access to the innovation they rely on. We work on the most challenging problems, with thousands of variables impacting the supply chain - and we're looking for talented people who
Posted 48 days ago | Updated 2 hours ago

Security Engineer II (Remote)

Dexter Technologies

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Remote

Full-time

Dexter Technologies Inc., is a leading provider of Staffing and Recruiting Services. For over two decades, we have put countless professionals to work at exciting opportunities. We are proud of the fact that many of them have been promoted to more senior roles: management, senior management, and senior executive leadership positions. We are actively seeking qualified candidates for the following position for our client, who is an industry leader: Security Engineer II Location Remote Type Full T
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Posted 21 days ago | Updated 19 days ago

Lead Product Security Engineer

Johnson & Johnson

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Remote or Santa Clara, California, USA

Full-time

At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across the full spectrum of healthcare solutions today to deliver the breakthroughs of tomorrow, and profoundly impact health for humanity. Learn m
Posted 4 days ago | Updated 10 hours ago

Security Systems Engineer, Programming & Commissioning

Tesla Motors

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Remote or Sparks, Nevada, USA

Full-time

We are seeking a highly skilled Security Systems Engineer to join our team. The successful candidate will be responsible for the programming and commissioning of access control, intrusion detection and video surveillance systems. This role requires strong technical expertise, excellent communication skills, and the ability to work collaboratively with cross-functional teams. Locations: Reno, NV, OR Fremont, CA OR Austin, TX Responsibilities Support the Security Engineering's Southern region i
Posted 60+ days ago | Updated 10 hours ago

Senior Systems Security Engineer

SAIC

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Alexandria, Virginia, USA

Full-time

Job ID: 2507174 Location: ALEXANDRIA, VA, US Date Posted: 2025-07-01 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is hiring a Senior Systems Security Engineer with an active TS/SCI clearance to participate in Independent Technical Risk Assessments (ITRA) and Program Protection Plan () reviews to
Posted 7 days ago | Updated 8 hours ago

IT Security Engineer - Lead

Navigant Consulting

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Remote or Atlanta, Georgia, USA

Full-time

Job Family: IT Cyber Security Travel Required: Up to 10% Clearance Required: None What You Will Do: Our Security Engineer Lead plays a pivotal role within the Information Security Operations group that is dedicated to supporting Security Operations and Incident Management/Response processes, SIEM engineering, Threat Hunting, Automation, Cyber Architecture, and Threat Intelligence. This position is responsible for enhancing SIEM and tool monitoring, tuning, detection, and alerting across mult
Posted 60+ days ago | Updated 10 hours ago

Sr. Security Engineer (MDCA, DLP) - VIRTUAL!

Alight Solutions LLC

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Illinois, USA

Full-time

Our story At Alight, we believe a company's success starts with its people. At our core, we Champion People, help our colleagues Grow with Purpose and true to our name we encourage colleagues to "Be Alight." Our Values: Champion People - be empathetic and help create a place where everyone belongs. Grow with purpose - Be inspired by our higher calling of improving lives. Be Alight - act with integrity, be real and empower others. It's why we're so driven to connect passion with purpose. Al
Posted 11 days ago | Updated 10 hours ago

Systems Engineer Staff - System Security Engineering

Lockheed Martin Corporation

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Remote or Cope, Colorado, USA

Full-time

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutio
Posted 10 days ago | Updated 10 hours ago

Information System Security Engineer (ISSE) Senior Level(Government)

AT&T Inc.

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Chantilly, Virginia, USA

Full-time

Job Description: This position requires office presence of a minimum of 5 days per week and is only located at customer's site. No relocation is offered. AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our cus
Posted 60+ days ago | Updated 10 hours ago

A/V & Security Engineer

Leidos

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Chantilly, Virginia, USA

Full-time

Job Description We are seeking a highly organized and detail-oriented A/V Security Engineer who is responsible for the operation, configuration, and maintenance of advanced video systems used in secured environments. This role ensures high-quality video signal integrity, optimal display performance, and the reliability of video infrastructure across conferencing, streaming, and surveillance systems. The ideal candidate is technically adept, detail-oriented, and experienced in leading AV operati
Posted 30 days ago | Updated 10 hours ago

Senior Security Engineer - AppSec

Tier4 Group

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Reston, Virginia, USA

Full-time

Job Title: Sr. Application Security Engineer Location: Greater DC Area (2 days per week onsite hybrid) Job Type: Permanent/Full Time Job Description: Our banking client is seeking a highly skilled and experienced Sr. Application Security Engineer to join their team. The ideal candidate will be responsible for designing, implementing, and maintaining security protocols to protect our organization's data and systems. The role requires a deep understanding of cybersecurity threats, vulnerabilities,
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Posted 28 days ago

Senior Security/Systems Engineer - FIPS 140 Certification

Viasat, Inc.

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California, USA

Full-time

About us One team. Global challenges. Infinite opportunities. At Viasat, we're on a mission to deliver connections with the capacity to change the world. For more than 35 years, Viasat has helped shape how consumers, businesses, governments and militaries around the globe communicate. We're looking for people who think big, act fearlessly, and create an inclusive environment that drives positive impact to join our team. What you'll do This is a special opportunity to lead the systems and certi
Posted 2 days ago | Updated 10 hours ago

Information Systems Security Engineer

Nightwing

•

Sterling, Virginia, USA

Full-time

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th
Posted 31 days ago | Updated 10 hours ago