Lead Security Engineer Jobs in District of Columbia

401 - 420 of 577 Jobs

System Engineer - Physical Security SystemsJob Title - System Engineer - Physical Security Systems

Brookfield GlobalCompany Name - Brookfield Global

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Arlington, Virginia, USA

Full-time

Global Security Systems Integrator within the DoD space are hiring full time due to growth. Excellent compensation, benefits and work/life balance. Working in a professional and collaborative culture the firm offers stability and long term growth. Essential responsibilities and activities include but are not limited to: Design and Installation of existing systems, installation of new systems, and proactive initiatives Performing device programming and configuration changes requested by the clien

Information System Security Officer 2Job Title - Information System Security Officer 2

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

ORANGE you glad that you chose RealmOne? RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch security professionals. Join us on this journey as we execute t

Information System Security Officer 3Job Title - Information System Security Officer 3

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

Information Systems Security Manager (ISSM)Job Title - Information Systems Security Manager (ISSM)

Cymertek CorporationCompany Name - Cymertek Corporation

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Chantilly, Virginia, USA

Full-time

Information Systems Security Manager (ISSM) LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a dedicated and results-driven Information Systems Security Manager (ISSM) to lead and oversee the security management of our information systems. In this pivotal role, you will be responsible for ensuring the confidentiality, integrity, and availability of organizational systems while maintaining complianc

Information System Security OfficerJob Title - Information System Security Officer

Cymertek CorporationCompany Name - Cymertek Corporation

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Reston, Virginia, USA

Full-time

Information System Security Officer LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a dedicated and detail-oriented Information System Security Officer (ISSO) to join our cybersecurity team. In this role, you will be responsible for maintaining the security posture of information systems, ensuring compliance with security policies, and managing risk through the implementation of robust security measures.

Associate Industrial Security RepresentativeJob Title - Associate Industrial Security Representative

LeidosCompany Name - Leidos

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Gaithersburg, Maryland, USA

Full-time

Description The Digital Modernization Sector at Leidos is seeking an Associate Industrial Security Representative to join our security team in Gaithersburg, MD. The position operates under the guidance of the Leidos DECO/Global Solutions Management Operations (GSMO) Security Manager in the application of Leidos security standards and practices to existing US government facilities identified by the contract. Primary Responsibilities: Supporting, implementing, and providing guidance to customers

IT Security SpecialistJob Title - IT Security Specialist

Cymertek CorporationCompany Name - Cymertek Corporation

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Chantilly, Virginia, USA

Full-time

IT Security Specialist LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a detail-oriented and dedicated IT Security Specialist to join our team and safeguard our organization's digital assets. In this role, you will be responsible for identifying and mitigating security risks, implementing best practices, and ensuring the integrity and confidentiality of sensitive information. The ideal candidate w

Information System Security Manager 2Job Title - Information System Security Manager 2

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

Information System Security Manager 3Job Title - Information System Security Manager 3

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

Security AnalystJob Title - Security Analyst

SAICCompany Name - SAIC

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Arlington, Virginia, USA

Full-time

Job ID: 2507505 Location: ARLINGTON, VA, US Date Posted: 2025-07-14 Category: Security Subcategory: Security 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 seeking a Security Analyst with an active TS/SCI clearance to provide general administrative support to the Office of the Under Secretary of Defense for Research and Engineering (OUSD(R&E)). This position

Information Systems Security OfficerJob Title - Information Systems Security Officer

Base-2 Solutions, LLCCompany Name - Base-2 Solutions, LLC

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Fort Meade, Maryland, USA

Full-time

Job Description: Base-2 Solutions is seeking a dedicated and detail-oriented Information Systems Security Officer (ISSO) to join our team. Our ISSOs are responsible for ensuring the security posture of mission-critical systems by supporting compliance efforts, managing risk, and enforcing security policies. We're looking for individuals who excel at navigating complex cybersecurity environments, maintaining meticulous documentation, and fostering collaboration between technical teams and govern

Network Security AnalystJob Title - Network Security Analyst

Cymertek CorporationCompany Name - Cymertek Corporation

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Reston, Virginia, USA

Full-time

Network Security Analyst LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a detail-oriented and proactive Network Security Analyst to join our cybersecurity team. In this role, you will monitor, analyze, and protect the organization's network infrastructure against potential threats and vulnerabilities. You will be responsible for identifying security risks, responding to incidents, and implementing m

IT Security AnalystJob Title - IT Security Analyst

Decisionpoint CorporationCompany Name - Decisionpoint Corporation

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Joint Base Andrews, Maryland, USA

Full-time

Overview DecisionPoint Corporation is seeking an IT Security Analyst to join our US Air Force team supporting the defense of USAF infrastructure (AFIN) at the base level. This position is onsite at JB Andrews. Duties & Responsibilities The contractor shall provide Functional Mission Analysis-Cyber assistance to identify weapon system's critical information technology architecture and supporting infrastructure that aids in the warfighting mission. Contractor shall perform Information Security Ana

Information Systems Security Officer - Clearance RequiredJob Title - Information Systems Security Officer - Clearance Required

Lockheed MartinCompany Name - Lockheed Martin

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Fort Meade, Maryland, USA

Full-time

Job ID: 687607BR Date posted: Aug. 04, 2025 Description:What We're Doing: Lockheed Martin, Rotary Mission Systems Cyber & Intelligence invites you to step up to one of today's most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you'll protect the networks that our citizens and the world depend upon each minute: Financial assets. Healthcare information. Critical infrastructure. Hazardous materials. The unin

Chief Information Security Officer - SeniorJob Title - Chief Information Security Officer - Senior

Parsons Services CompanyCompany Name - Parsons Services Company

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Centreville, Virginia, USA

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: Parsons is looking for an amazingly talented Chief Information Security Officer to j

Information Systems Security Officer (ISSO)Job Title - Information Systems Security Officer (ISSO)

Cymertek CorporationCompany Name - Cymertek Corporation

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Chantilly, Virginia, USA

Full-time

Information Systems Security Officer (ISSO) LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a detail-oriented and proactive Information Systems Security Officer (ISSO) to support and maintain the security of our information systems. In this role, you will be responsible for ensuring systems operate in compliance with established security policies, procedures, and regulations. You will work closely wit

Information System Security OfficerJob Title - Information System Security Officer

Cymertek CorporationCompany Name - Cymertek Corporation

•

Chantilly, Virginia, USA

Full-time

Information System Security Officer LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a dedicated and detail-oriented Information System Security Officer (ISSO) to join our cybersecurity team. In this role, you will be responsible for maintaining the security posture of information systems, ensuring compliance with security policies, and managing risk through the implementation of robust security measur

Security MonitorJob Title - Security Monitor

LeidosCompany Name - Leidos

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Chantilly, Virginia, USA

Full-time

Description Job Description We are seeking a highly organized and detail-oriented Security Monitor who is responsible for supporting physical security operations by conducting monitoring and escort duties in secured environments. This position plays a critical role in ensuring that access to cleared areas is controlled and that maintenance, inspection, and other support personnel are properly escorted in accordance with established security protocols. The Security Monitor may also assist with e

Security Administrator IJob Title - Security Administrator I

INSPYR SolutionsCompany Name - INSPYR Solutions

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Fairfax, Virginia, USA

Contract

Title: Security Administrator Location: Springfield, VA Onsite Monday-Friday 8am-4pm Duration: One year with potential for extension or conversion Work Requirements: , Holders, or Authorized to Work in the U.S. Compensation: $18/hrThis position is considered an entry-level position. Ideal candidate would be recent college grad or someone who has little to no experience with front office security. This is considered an administrative position and does not require the candidate to actively partic

Information System Security Officer (ISSO)Job Title - Information System Security Officer (ISSO)

Accenture LLPCompany Name - Accenture LLP

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Fort Meade, Maryland, USA

Full-time

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations. Join Accenture Federal Services, a technology company and part of global Accenture, to do work that matters in a collaborative