Network Security Jobs in District of Columbia

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121 - 140 of 1,063 Jobs

Cyber Security Engineer, Mid-Sr.

Govcio LLC

•

Fairfax, Virginia, USA

Full-time

Overview: GovCIO is seeking an experienced Cyber Security Engineer to lead and enhance our organization's corporate cybersecurity program. This role is pivotal in safeguarding our digital assets, ensuring compliance with industry standards, driving the adoption of cutting-edge security practices and providing technical and process guidance to delivery organizations. This position will be located in Fairfax, VA and will be an onsite or fully remote position within the United States. Responsibil
Posted 37 days ago | Updated 7 hours ago

Principal Cyber Network Engineer

ManTech

•

Chantilly, Virginia, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Principal Cyber Network Engineer to join our team in Chantilly, Virginia. As a Principal Cyber Network Engineer, you will be responsible for expanding network modeling of various vendor network devices, such as routers, switches, load balancers and firewalls as well as virtual network devices and cloud environments. Research various network devices' features affecting "access" and create a proposal for modeling such as features in RedSeal.
Posted 7 hours ago

Principal Cyber Network Engineer

ManTech

•

Chantilly, Virginia, USA

Full-time

MANTECH seeks a motivated, career and customer-oriented Principal Cyber Network Engineer to join our team in Chantilly, Virginia. As a Principal Cyber Network Engineer, you will be responsible for expanding network modeling of various vendor network devices, such as routers, switches, load balancers and firewalls as well as virtual network devices and cloud environments. Research various network devices' features affecting "access" and create a proposal for modeling such as features in RedSeal.
Posted 7 hours ago

Cyber Security Engineer, Mid-Sr.

GovCIO

•

Fairfax, Virginia, USA

Full-time

Overview GovCIO is seeking an experienced Cyber Security Engineer to lead and enhance our organization's corporate cybersecurity program. This role is pivotal in safeguarding our digital assets, ensuring compliance with industry standards, driving the adoption of cutting-edge security practices and providing technical and process guidance to delivery organizations. This position will be located in Fairfax, VA and will be an onsite or fully remote position within the United States. Responsibili
Posted 37 days ago | Updated 4 hours ago

Cyber Security Analyst SME - TS/SCI w/ Polygraph

General Dynamics

•

Bethesda, Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Cyber Security Job Qualifications: Skills: Documentations, Microsoft Azure, NIST, Risk Management Framework Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Seize your opportunity to make a personal impact as a Cyber Security Analy
Posted 7 hours ago

Principal Cyber Network Engineer

ManTech

•

Chantilly, Virginia, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Principal Cyber Network Engineer to join our team in Chantilly, Virginia. As a Principal Cyber Network Engineer, you will be responsible for expanding network modeling of various vendor network devices, such as routers, switches, load balancers and firewalls as well as virtual network devices and cloud environments. Research various network devices' features affecting "access" and create a proposal for modeling such as features in RedSeal.
Posted 3 days ago | Updated 6 hours ago

Principal Cyber Network Engineer

ManTech

•

Chantilly, Virginia, USA

Full-time

MANTECH seeks a motivated, career and customer-oriented Principal Cyber Network Engineer to join our team in Chantilly, Virginia. As a Principal Cyber Network Engineer, you will be responsible for expanding network modeling of various vendor network devices, such as routers, switches, load balancers and firewalls as well as virtual network devices and cloud environments. Research various network devices' features affecting "access" and create a proposal for modeling such as features in RedSeal.
Posted 3 days ago | Updated 6 hours ago

Cyber Security Analyst SME - TS/SCI w/ Polygraph

General Dynamics Information Technology

•

Bethesda, Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Cyber Security Job Qualifications: Skills: Documentations, Microsoft Azure, NIST, Risk Management Framework Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Seize your opportunity to make a personal impact as a Cyber Security Analy
Posted 2 days ago | Updated 5 hours ago

Business Process Engineer - TS/SCI with Poly

Jacobs

•

Columbia, Maryland, USA

Full-time

We are seeking a Business Process Engineer for a prime contract that is based out of our Columbia, MD office. Responsibilities: Assist in defining and documenting a capability delivery roadmap that defines the functionality details and sequence from the Initial Operating Capability (IOC) to Final Operating Capability (FOC) sequenceAssist in defining and documenting configuration requirements, business rules, functional and system requirementsLeverage industry best practices to plan, organize, a
Posted 44 days ago | Updated 7 hours ago

System Vulnerability Analyst 4

Realm One

•

Annapolis, Maryland, USA

Full-time

Are you VIGILANT about your career? RealmOne definitely is! 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 jou
Posted 38 days ago | Updated 7 hours ago

Lead Security Engineer

Apex Systems

•

Washington, District of Columbia, USA

Full-time

Job#: 2077304 Job Description: Apex Systems is seeking a Lead Security Engineer to support the Department of Transportation in Washington DC. If interested, email your resume. Position: Lead Security Engineer Location: 1200 New Jersey Ave SE Washington DC USA 20590 3x onsite, 2x remote Hours: Regular business hours Compensation: $120k-$128k Job Type: Contract to hire Clearance: Must obtain DOT public trust clearance The Lead Security Engineer will assist the Department of Transportation's Cybers
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Posted 45 days ago | Updated 8 hours ago

Network Engineer

Leidos

•

Lorton, Virginia, USA

Full-time

The Multi Domain Solutions Division at Leidos is looking for a Network Engineer to support a fast-paced program with the Air Force Life Cycle Management Center, managing multiple workstations and network hardware across multiple customer sites and the cloud. We are seeking a skilled Network Engineer to deploy, monitor, and maintain network systems that meet Department of Defense (DoD) specifications. In this role, you will implement secure network architectures, monitor and operate customer netw
Posted 27 days ago | Updated 7 hours ago

Cyber Security Engineer - Hybrid Work Opportunity

General Dynamics

•

Remote or Arlington, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Cyber Engineering Job Qualifications: Skills: Cyber Defense, Cybersecurity, Information Assurance, Information Technology Security, Network Security Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: We are GDIT. The people supporting some of the most complex go
Posted 54 days ago | Updated 7 hours ago

Virtual Desktop Engineering Lead

Leidos

•

Remote or Odenton, Maryland, USA

Full-time

Leidos is seeking an experienced Virtual Desktop Engineering Lead to join our Defense Enclave Services (DES) team in Fort Meade, MD, who will support an extensive digital modernization program critical to Defense Information Systems Agency (DISA) and Department of Defense (DoD) Fourth Estate Agencies (DAFAs). The Virtual Desktop Engineering Lead will lead a team of engineers to design, implement, and deploy Azure Virtual Desktop (AVD) solutions to meet DISA and DAFAs needs as part of DODNet mode
Posted 2 days ago | Updated 7 hours ago

Cloud Security Engineer

Cornerstone Defense

•

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
Posted 38 days ago | Updated 7 hours ago

Network Engineer

Leidos

•

Chantilly, Virginia, USA

Full-time

Description We are seeking a highly skilled Network Engineer to design, configure, and maintain network systems that support critical SAP landscapes. The ideal candidate will play a key role in ensuring optimal network performance and availability for SAP applications, collaborating with cross-functional IT teams to support business operations, security compliance, and disaster recovery initiatives. Primary Responsibilities: Design, configure, and maintain network infrastructure supporting SAP
Posted 57 days ago | Updated 1 day ago

System Vulnerability Analyst 3

Realm One

•

Annapolis, Maryland, USA

Full-time

Are you VIGILANT about your career? RealmOne definitely is! 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 jou
Posted 38 days ago | Updated 7 hours ago

Senior Systems Engineer

SAIC

•

Washington, District of Columbia, USA

Full-time

Job ID: 2506843 Location: WASHINGTON, DC, US Date Posted: 2025-06-18 Category: Information Technology Subcategory: IT Systems 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 SAIC is seeking a Senior Systems Engineer to support a critical U.S. government agency in the National Capital Region. This SME-level role is ideal for an experienced systems engi
Posted 45 days ago | Updated 5 hours ago

Systems Monitoring Analyst

General Dynamics

•

Germantown, Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret Public Trust/Other Required: None Job Family: Database Analysis/Design Job Qualifications: Skills: Communication, Data Analysis, Design, Documentations, System Monitors Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: IT Operations Systems Monitoring Analyst Transform technology into opportunity as an IT Sy
Posted 7 days ago | Updated 7 hours ago

Continuous Monitoring Engineer (ConMon)

Leidos

•

Odenton, Maryland, USA

Full-time

Description Leidos is seeking multiple ConMon Engineers to be responsible for overseeing and monitoring all authorized IT systems (re-authorization and new systems) throughout their lifecycle for security posture impact. These positions can be based out of any of our three locations - Alexandria, VA, Fort Meade, MD, or Chambersburg, PA. These positions are primarily on-site, but some partial telework may be available at the discretion of our customer and program management. Some travel may be re
Posted 24 days ago | Updated 21 hours ago