IT Security Engineer jobs in Washington, DC

Remote or Kirkland, Washington

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Today

Senior IT Security Engineer (Cloud & Network) Our client is seeking a senior IT Security Engineer to protect its cloud and network environments and to lead how the organization adopts AI safely. This role goes beyond using AI-powered security tools. You'll build the guardrails, governance, and controls that balance the business's growing use of AI against the risks it introduces. As a senior individual contributor on a small team, you'll have real ownership and a direct impact on how the organiz

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Full-time

USD140,000 - USD160,000

IT Security Engineer, Space

Chantilly, Virginia

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5d ago

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c

Full-time

USD 146,000.00 - 194,000.00 per year

IT Senior Security Engineer

Bethesda, Maryland

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Today

Senior Security Engineer Location: Bethesda, MD (Requires Onsite 3-5 days per week as needs change) Employment Type: Full-time The National Library of Medicine (NLM) is seeking an IT Senior Security Engineer to join our Security Compliance team. In this role, you will work closely with the NLM Information Systems Security Office and play a critical part in safeguarding NLM's IT infrastructure. The Senior Security Engineer plays a hands-on role in a multi-disciplined security team, focusing on

Full-time

IT Security Engineer II

Remote

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Today

Exemption Status: United States of America (Exempt) $110,982 - $155,376 - $199,769 "Pay scale information is not necessarily reflective of actual compensation that may be earned, nor a promise of any specific pay for any selected candidate or employee, which is always dependent on actual experience, education, qualifications, and other factors. A full review of our comprehensive pay and benefits will be discussed at the offer stage with the selected candidate." This position is not eligible f

Full-time

USD 110,982.00 - 155,376.00 per year

IT Vulnerability Management Lead / Senior Security Analyst

Bethesda, Maryland

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Today

IT Vulnerability Management Lead / Senior Security Analyst Location: Bethesda, MD (Onsite 3-5 days per week) Employment Type: Full-time The National Library of Medicine (NLM) is seeking an IT Security Compliance Lead / Senior Security Analyst to join our security compliance team. In this role, you will work closely with the NLM Information Systems Security Officer (ISSO) and play a critical part in safeguarding NLM's IT infrastructure. You will be part of a broader IT program that provides end

Full-time

IT Security Vulnerability Specialist (0036)

Suitland-Silver Hill, Maryland

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26d ago

Associate / IT Security Vulnerability Specialist (0036) OCT Consulting is a management and technology consulting firm that supports Federal Government clients. We provide consulting services in the areas of Data Analytics, Change Management, Program and Project Management, Acquisition/Procurement, and Information Technology. OCT is currently looking for an Associate to join our growing Cybersecurity practice. This position will primarily support a federal client as an IT Security Vulnerability

Full-time

USD 110,000.00 - 130,000.00 per year

IT Security Specialist - Mid - SecCM Specialist

Arlington, Virginia

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Today

Job Family: IT Cyber Security Travel Required: Up to 10% Clearance Required: Active Top Secret (TS) What You Will Do: Guidehouse is looking for an experienced professional with experience in building, managing, and controlling the secure configurations of information systems for federal organizations. Your duties will include managing and controlling secure configurations of over 200 information systems for a federal client with a critical and high-profile mission in accordance with NIST 800-

Full-time

USD 98,000.00 - 163,000.00 per year

IT Security Specialist

Alexandria, Virginia

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Today

IT Security Specialist Company Overview: KMS Solutions, LLC is a technical management / solutions company that specializes in engineering, analysis, and cyber security. Founded in 2005, KMS is a certified small business with nearly two decades of experience supporting the Department of Defense as well as many other departments and programs critical to our Nation's security and well-being. KMS is a three-time winner of the USA Today Top Workplaces recognizing quality workplace cultures across t

Full-time

USD 110,000.00 - 140,000.00 per year

IT Security Manager

Washington, District of Columbia

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Today

Amida Technology Solutions is a DC-based technology company focused on data interoperability, integrity, governance, and security. We create solutions that collect, reconcile, transform, and standardize data for business intelligence, advanced analytics, decision support, and user transactions. We specialize in taking data from inception to impact. Our team is composed of creative, forward-looking thinkers who are passionate about using cutting-edge technology to improve lives and generate a pos

Full-time

IT Security Auditor - Consultant

Chantilly, Virginia

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Today

Job Family: Technology Consulting Travel Required: Up to 10% Clearance Required: Active Top Secret SCI with Polygraph What You Will Do: The IT Security Auditor will lead stakeholder engagement and technical delivery for efforts supporting federal agencies with IT controls assessments and program evaluations. This is an ideal role for someone with an information security and assurance or IT audit background who is looking to utilize their skills to work with the federal government to analyze

Full-time

Information Systems Security Engineer

Reston, Virginia

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Today

Job ID: 2617337 Location: Reston, VA, US Date Posted: 2026-09-28 Category: Cyber Subcategory: Cyber Engineer Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: TS.SCI Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_ON_SITE Description SAIC is seeking a highly motivated, detail-oriented, and experienced Information Systems Security Engineer (ISSM) to join our lead systems integrator team in Reston, Virginia. The ISSE

Full-time

USD 160,001.00 - 200,000.00 per year

Information Security Engineer

McLean, Virginia

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Today

Here at Appian, our values of Intensity and Excellence define who we are. We set high standards and live up to them, ensuring that everything we do is done with care and quality. We approach every challenge with ambition and commitment, holding ourselves and each other accountable to achieve the best results. When you join Appian, you'll be part of a passionate team dedicated to accomplishing hard things, together. Information Security Engineer I Are you ready to build the security systems tha

Full-time

USD 75,000.00 - 175,000.00 per year

Information Systems Security Engineer

Sterling, Virginia

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Today

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

Full-time

USD 99,000.00 - 206,000.00 per year

Information Systems Security Engineer

Lorton, Virginia

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Today

Overview Systems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues. With over 50 years of business expertise and consistent growth, we are known for continuous innovation for our government customers, in both the US and abroad. Our exceptionally talented team is highly collaborative in spirit and practice, producing Results that Matter. Come work with the best! We offer opportunity, unique challenges, and clear-sighted commitment to

Full-time

USD 180,000.00 per year

Information System Security Engineer

Annapolis, Maryland

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Today

Unisity, LLC is a Service-Disabled Veteran Owned Small Business providing expert services in the Information Technology fields. We pride ourselves on delivering what is promised, as some would say we "just do". We are highly-qualified, self-driven professionals who work towards a common goal as a team, leading when appropriate and following when needed. ISSE The selected candidate will have numerous responsibilities from day to day drawn from a wide array of activities. The strongest candidates

Full-time

Information Systems Security Engineer

Fort Meade, Maryland

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Today

Description Markon is seeking an experienced Information Systems Security Engineer (ISSE) to support the Fort Meade customer by providing cybersecurity engineering expertise for mission-critical systems supporting the Cyber Threat Intelligence (CTI) mission. This role evaluates system and cloud architectures, develops security requirements and technical documentation, supports authorization activities, and identifies and mitigates vulnerabilities across classified and unclassified environments.

Full-time

USD 215,000.00 - 225,000.00 per year

Information Systems Security Engineer

Fort Meade, Maryland

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Today

MANTECH seeks a motivated, career and customer-oriented Information Systems Security Engineer (ISSE) to join our team in the Fort Meade, Maryland area. Responsibilities include, but are not limited to: Participate as a primary security engineering representative on integrated teams for the design, development, implementation, evaluation, and integration of secure networking, computing, and enclave environments.Design, develop, implement, and evaluate Information Assurance (IA) architectures, sy

Full-time

Security Engineer

Herndon, Virginia

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Today

Our Partner is looking for a Security Engineer to join a project. Responsibilities Monitor systems for abnormal activity Analyze alerts, distinguish threats from false positives, categorize incidents by risk Lead incident response: containment, eradication, recovery, post-incident analysis, documenting steps Optimize detection capabilities: refine alert thresholds, tune SIEM rules, integrate new data sources, reduce false positives Compile weekly/monthly reports on incident trends, threat activi

Full-time

Information Systems Security Engineer

Annapolis, Maryland

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Today

Prodigy One, LLC. is a systems and software engineering services firm providing more than 45 years of service to state and federal customers. By combining unparalleled experience and capabilities, our company provides big data, cloud development, and enterprise management solutions. We are focused on product usability and end user presentation to help our customers make the best decisions possible. Given our length of service in the industry, Prodigy One knows the importance of a competitive sal

Full-time

USD 124,000.00 - 185,000.00 per year

Information Systems Security Engineer

Annapolis, Maryland

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Today

Description PLEX Solutions, A Part of Markon, is looking for an Information System Security Engineer (ISSE) to support a position in Annapolis Junction, MD. The Information Systems Security Engineer (ISSE) serves as the on-site technical lead responsible for deploying, maintaining, and supporting a customer's TECTIX instance while supporting the security engineering and authorization workload the platform is built to accelerate. TECTIX is an AI/ML-enabled Risk Management Framework (RMF) automat

Full-time

USD 185,000.00 - 225,000.00 per year

IT Security Engineer jobs in Washington, DC, USA