security engineer Jobs in washington, dc

21 - 40 of 750 Jobs

Senior Network Security EngineerJob Title - Senior Network Security Engineer

Costar GroupCompany Name - Costar Group

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Arlington, Virginia, USA

Full-time

Senior Network 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 infor

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Burke, Virginia, USA

Full-time

Job DescriptionDescription We are seeking a highly skilled Cyber Security Engineer supporting the NRO cyber operations group or Industrial Control Systems group at each site by working with the Information Security Offices to design, implement, and support defensive security solutions that safeguard mission-critical systems and data. The ideal candidate will have deep expertise in cyber threat research, vulnerability assessment, and secure software development practices. This role focuses on pro

IT Security EngineerJob Title - IT Security Engineer

LeidosCompany Name - Leidos

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Springfield, Virginia, USA

Full-time

Job DescriptionDescription We are seeking a Cyber Security Engineer who is responsible for developing and implementing advanced security solutions to defend critical systems, networks, and data against evolving cyber threats. This role combines technical expertise in both software and hardware to support the design and deployment of defensive cyber measures. The engineer conducts research on current and emerging cyber threats, identifies vulnerabilities, and ensures that development environments

AI Security EngineerJob Title - AI Security Engineer

Motion Recruitment Partners, LLCCompany Name - Motion Recruitment Partners, LLC

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Washington, District of Columbia, USA

Full-time

Job Title: Security Engineer - AI Red Teaming & Threat Analytics Location: Washington, DC (Hybrid - 3 Days Onsite) Type: 6-Month Contract-to-Hire Clearance: Must be eligible for Public Trust Overview: Our client is seeking a Security Engineer with a strong background in AI security, red teaming, and adversarial testing. This role focuses on securing enterprise LLM platforms such as Copilot, Azure OpenAI, and AWS Bedrock by identifying vulnerabilities, mitigating misuse, and implementing robu

Network Security EngineerJob Title - Network Security Engineer

Accenture LLPCompany Name - Accenture LLP

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Washington, District of Columbia, 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

Offensive Security EngineerJob Title - Offensive Security Engineer

Costar GroupCompany Name - Costar Group

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Arlington, Virginia, USA

Full-time

Offensive Security Engineer Job Description Offensive Security Engineer 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 wo

Information Systems Security EngineerJob Title - Information Systems Security Engineer

Data Intelligence LLC.Company Name - Data Intelligence LLC.

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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.

Network Security EngineerJob Title - Network Security Engineer

INSPYR SolutionsCompany Name - INSPYR Solutions

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Merrifield, Virginia, USA

Contract

Title: Network Security Engineers (specializing in Palo Alto) Location: Remote Duration: Initial 6 months contract plus extension Work Requirements: , Holders or Authorized to work in USJob Description Network Security Engineering services to validate existing firewall rulesets in place and approve new firewall requests for client's on-premise and cloud firewalls. The project requires that all firewall rules be reviewed and optimized, removing legacy rules, and validating business owners for exi

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Reston, Virginia, USA

Full-time

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Chantilly, Virginia, USA

Full-time

Q009 - Network Security EngineerJob Title - Q009 - Network Security Engineer

V-Soft Consulting Group, IncCompany Name - V-Soft Consulting Group, Inc

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Washington, District of Columbia, USA

Contract

Network Security Engineer / Sr Network Engineer Primary Location: Washington DC 20024 (*Hybrid 3x) V-Soft Consulting is currently hiring for an Network Security Engineer / Sr Network Engineer for our premier client in Washington DC 20024 (*Hybrid 3x) Education and Experience Need total 10+ years of networking exp. Knowledge and Skills: Experience building large scale, multi-site network architectures. 5 Years Required Experience with firewalls: Cisco Firepower (NGFW) or Cisco ASA Firewalls.

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Herndon, Virginia, USA

Full-time

Information Systems Security EngineerJob Title - Information Systems Security Engineer

BOOZ, ALLEN & HAMILTON, INC.Company Name - BOOZ, ALLEN & HAMILTON, INC.

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Fort Belvoir, Virginia, USA

Full-time

Information Systems Security Engineer The Opportunity: Are you looking for an opportunity to share your experience in system security engineering to help our country and assist our clients with critical missions? As a systems security and network security engineer, you can identify the Information System Security Engineering needed to assess vulnerabilities and recommend the best solution and security strategy. We need your experience to lead the development and implementation of security solut

Virtru Security EngineerJob Title - Virtru Security Engineer

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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Arlington, Virginia, USA

Full-time

Job Number: R0219984 Virtru Security Engineer The Opportunity: As a Virtru Security Engineer you'll play a critical role in the world of zero t rus t. You will support the cyber architecture development, implementation, and sustainment across multiple networks of different classification levels. You'll interface with stakeholders and engineering teams to delve into the details and dependencies of critical processes and users' roles within them. You'll lead security compliance initiatives and a

Cloud Security EngineerJob Title - Cloud Security Engineer

Cornerstone DefenseCompany Name - Cornerstone Defense

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Herndon, Virginia, USA

Full-time

Location: Herndon, Virginia Type: Contract Job #3713 Title: Cloud Security Engineer Location: Herndon, VA *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team i

Operations Security EngineerJob Title - Operations Security Engineer

Apex SystemsCompany Name - Apex Systems

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Joint Base Andrews, Maryland, USA

Full-time

Job#: 2076817 Job Description: Apex Systems is seeking an Operations Security Engineer to support the US Airforce at Joint Base Andrews. If interested, email your resume. #clearance Position: Operations Security Engineer Location: Fully onsite at Joint Base Andrews Hours: M-F, 8 hour shift between 6AM-6PM Compensation: $70-$75/hr Job type: Full-time, long-term contract Certification: Security+ required Primary Responsibilities As the Operations Security Engineer, you will work alongside a de

Information Systems Security EngineerJob Title - Information Systems Security Engineer

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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Fort Belvoir, Virginia, USA

Full-time

Job Number: R0221437 Information Systems Security Engineer The Opportunity: Are you looking for an opportunity to share your experience in system security engineering to help our country and assist our clients with critical missions? As a systems security and network security engineer, you can identify the Information System Security Engineering needed to assess vulnerabilities and recommend the best solution and security strategy. We need your experience to lead the development and implementat

Computer Network Defense (CND) Security EngineerJob Title - Computer Network Defense (CND) Security Engineer

LeidosCompany Name - Leidos

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Suitland-Silver Hill, Maryland, USA

Full-time

Leidos Defense is seeking a mission-driven Computer Network Defense (CND) Security Engineer to join our elite team supporting a key Department of Defense (DoD) customer. Based onsite in Suitland, MD, this role is ideal for someone who thrives in fast-paced environments, enjoys solving tough cyber challenges, and is ready to take on a pivotal role in safeguarding national security systems. As a trusted cyber defense leader, you'll work alongside some of the most driven and creative minds in the

Senior Tenable Security EngineerJob Title - Senior Tenable Security Engineer

ShorePoint, IncCompany Name - ShorePoint, Inc

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Washington, District of Columbia, USA

Full-time

Who we are: ShorePoint is a fast-growing, industry recognized and award-winning cybersecurity services firm with a focus on high-profile, high-threat, private and public-sector customers who demand experience and proven security models to protect their data. ShorePoint subscribes to a work hard, play hard mentality and celebrates individual and company successes. We are passionate about our mission and going above and beyond to deliver for our customers. We are equally passionate about an enviro

Computer Network Defense (CND) Security EngineerJob Title - Computer Network Defense (CND) Security Engineer

LeidosCompany Name - Leidos

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Hillcrest Heights, Maryland, USA

Full-time

Description Leidos Defense is seeking a mission-driven Computer Network Defense (CND) Security Engineer to join our elite team supporting a key Department of Defense (DoD) customer. Based onsite in Suitland, MD, this role is ideal for someone who thrives in fast-paced environments, enjoys solving tough cyber challenges, and is ready to take on a pivotal role in safeguarding national security systems. As a trusted cyber defense leader, you'll work alongside some of the most driven and creative m