senior security engineer jobs in washington

Arlington, Virginia

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Today

We are seeking a skilled and dedicated Vulnerability Management Administrator to manage and maintain our vulnerability management program using the Nucleus Security platform. The ideal candidate will be responsible for the day-to-day operation of the platform, ensuring all assets are scanned, vulnerabilities are identified and prioritized, and remediation efforts are tracked and reported to stakeholders. This role is critical in helping the organization maintain a strong security posture and com

Full-time

USD 107,900.00 - 195,050.00 per year

Network Security Engineer

Arlington, Virginia

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Today

About DMI DMI is a leading provider of digital services and technology solutions, headquartered in Tysons Corner, VA. With a focus on end-to-end managed IT services, including managed mobility, cloud, cybersecurity, network operations, and application development, DMI supports public sector agencies and commercial enterprises around the globe. Recognized as a Top Workplace, DMI is committed to delivering secure, ef?cient, and cost-effective solutions that drive measurable results. Learn more at

Full-time

Sepio Security Engineer

Arlington, Virginia

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Today

We are seeking a highly skilled and motivated Sepio Engineer to join our cybersecurity team. In this pivotal role, you will be responsible for designing, implementing, and maintaining security measures, with a specific focus on leveraging the Sepio platform for asset visibility and rogue device mitigation. You will play a key part in safeguarding our organization's physical and digital assets from evolving cyber threats by ensuring comprehensive device visibility and policy enforcement. Primary

Full-time

USD 107,900.00 - 195,050.00 per year

Cybersecurity - Senior Information System Security Manager (ISSM)

Herndon, Virginia

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Today

Cybersecurity - Senior Information System Security Manager (ISSM) Company: The Boeing Company Boeing Classified Cybersecurity is currently seeking a Cybersecurity - Information System Security Manager (ISSM) to join the team in either Herndon, VA. The ISSM will rely on a Cybersecurity and Information Assurance (IA) background to be a technical leader and support Enterprise activities and Boeing customers throughout multiple classified computing domains. The ISSM is responsible for maintaining

Full-time

USD 160,650.00 - 217,350.00 per year

System Security Engineer

Bethesda, Maryland

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Today

Job Family: IT Cyber Security Travel Required: Up to 25% Clearance Required: Ability to Obtain Public Trust What You Will Do: . Process Improvement Develop a framework to streamline the SA&A process.Strategies should include reducing meetings, automating tasks, leveraging existing information, and conceptualizing dashboards for further automation. 2. SA&A Schedule Create a timetable for all SA&A activities, specifying deadlines for annual assessments, contingency plan tests, incident respons

Full-time

USD 98,000.00 - 163,000.00 per year

Lead Data Loss Prevention (DLP) Security Engineer

Arlington, Virginia

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Today

Lead Data Loss Prevention (DLP) 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

Full-time

Security Engineer

Washington, District of Columbia

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Today

Job ID: 2511682 Location: WASHINGTON, DC, US Date Posted: 2025-12-18 Category: Cyber Subcategory: Cyber Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: Yes Description We are seeking a skilled Security Engineer with extensive experience in vulnerability remediation at the operating system (OS) level to join our IT team on-site in Washington, D.C. The ideal candidate

Full-time

USD 160,001.00 - 200,000.00 per year

Splunk Security Engineer

Suitland-Silver Hill, Maryland

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Today

Are you ready to turn your skills into real-world impact? Join Leidos as a Splunk Security Engineer in Suitland, MD and be at the forefront of mission-critical cybersecurity. From defending networks to building scalable automation, your work will shape the response and resilience of national operations. This posting is for an opportunity ranging in years of experience. Level of opportunity, including compensation, will be matched to a candidate's experience. What You'll Do As a core member of

Full-time

USD 107,900.00 - 195,050.00 per year

Information Systems Security Engineer

Alexandria, Virginia

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Today

Overview GovCIO is currently hiring an Information Systems Security Engineer for a program with the US Coast Guard. This position will be located in Alexandria, VA area and will be a hybrid remote position. This position focuses on maintaining compliance, ensuring operational security posture, and coordinating security documentation and activities across multiple stakeholders. The ideal candidate is detail-oriented, familiar with federal cybersecurity frameworks, and able to communicate effecti

Full-time

USD 108,310.00 - 150,000.00 per year

Network Security Engineer

Arlington, Virginia

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Today

Job Title: Network Security Engineer Location: Hybrid - Arlington, Virginia End Client: FDIC Type: Contract To Hire Compensation: $70/HR - only W-2 Contractor Work Model: Hybrid Public Trust Responsibilities: The Network Security Engineer role requires extensive Palo Alto Panorama, Firewalls, and Global Protect experience, along with extensive networking experience. Palo Alto Prisma Access and Zero Trust Network Access knowledge and experience are highly desired. A Network Security Engine

Easy Apply

Full-time

USD 70.00 per hour

Network Security Engineer

Washington, District of Columbia

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10d ago

Required Skills & Experience:7+ years of experience in network security engineering or similar role. Strong hands-on experience with Palo Alto firewalls and enterprise security stack. Expert-level experience with Cisco ISE (NAC, TACACS+, RADIUS, profiling, posture assessment). Solid understanding of AWS and/or Azure networking and security controls. Deep knowledge of network protocols (TCP/IP, BGP, OSPF, DNS, DHCP, VPNs, SSL/TLS). Experience with Zero Trust network architecture. Strong backgroun

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Contract

Security Infrastructure Engineer

Alexandria, Virginia

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Today

As a Security Engineer on our team, you will operate and maintain network security infrastructure utilized by a team of cybersecurity analysts in support of 24x7x365 mission-critical operations. This position allows hybrid telework about 40% of the time. The other 60% must be on-site. Primary Responsibilities: Work with government counterparts, contractors, and internal team members to deploy and manage policies, rules, and signature sets on cybersecurity capabilitiesManage high-priority tasks

Full-time

USD 107,900.00 - 195,050.00 per year

Security Engineer, MFA and Web Access Management

Bethesda, Maryland

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Today

Job Description JOB SUMMARY Leads the Identity & Access Management (IAM) function in Global Information Security organization through subject matter expertise (L3) on Multi-factor authentication (MFA), Web Access Management (WAM) technologies. Functions as the Security Engineer in the team providing engineering support for MFA and SSO service offerings, daily operations, and continuous improvements. Hands-on MFA implementation experience with PingOne SaaS products (DaVinci, Protect, Verify, Dir

Full-time

USD 84,900.00 - 148,600.00 per year

Edge Security Engineer

Arlington, Virginia

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Today

Edge 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 information and

Full-time

Information Systems Security Engineer (ISSE)

Laurel, Maryland

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Today

Leidos has a new and exciting opportunity for a Senior Information Systems Security Engineer (ISSE) in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% compan

Full-time

USD 154,050.00 - 278,475.00 per year

Senior Information Systems Security Officer (ISSO)

Ashburn, Virginia

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Today

Akima Global Technology (AGT) is looking for a Senior Information System Security Officer to work in Ashburn, Virginia. To join our team of outstanding professionals, apply today! Responsibilities Plans, develops, and analyzes security measures to protect critical information from counter-threats and possible attacks.Protects sensitive information by ensuring required software is functioning and being used correctly. Research new methods to improve digital security and eliminate vulnerabilities

Full-time

Information Systems Security Engineer

Herndon, Virginia

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Today

Job Number: R0229312 Information Systems Security Engineer The Opportunity: Are you looking for an opportunity to share your experience in network security, network scanning, and cloud security architecture to support our country's most important dynamic missions? As a systems security and network security engineer, you can identify the key security needs of a network, assess vulnerabilities, and recommend the best solution and security strategy. We need your experience to lead the development a

Full-time

USD 77,600.00 - 176,000.00 per year

Senior Infrastructure Security Engineer - DGX Cloud

Remote or Santa Clara, California

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Today

NVIDIA is looking for a Sr Infrastructure Security Engineer who will design and implement security best practices for on-premise and cloud access, keeping in mind boundaries that securely enable NVIDIA business verticals such as Graphics Drivers to Autonomous Vehicles and Artificial Intelligence to Deep Learning frameworks for internal and external consumption. This includes the use of deploying and maintaining various aspects of infrastructure security including, but not limited to, stateful fi

Full-time

USD 168,000.00 per year

Cleared Principal Security Reverse Engineer

Arlington, Virginia

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Today

If you're looking for the impact, this is the role for you. An early stage, founder-led boutique cybersecurity firm focused on CNO development and offensive cyber is looking for a Principal Reverse Engineer / Vulnerability Researcher. You will not be 1 of a 500-person program; you will work directly with the co-founders, shape tooling and tradecraft, and see the real-world impact of what you build on mission. This role is RE-heavy, Windows-heavy, and hands-on. You will be the person digging into

Easy Apply

Full-time

USD 200,000.00 - 300,000.00 per year

Senior Data Security Consultant

Arlington, Virginia

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Today

Job Family: Cyber Consulting Travel Required: None Clearance Required: Active Secret The Senior Data Security Lead supports the development of the data protection strategy for the agency's systems, applications, and networks, and acts as the lead Subject Matter Expert (SME) for all data Pillar activities. This position is responsible for supporting the implementation and maintenance of robust security controls to ensure the confidentiality, integrity, and availability of mission-critical data

Full-time

USD 130,000.00 - 216,000.00 per year

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senior security engineer jobs in Washington, DC, USA