Senior Network Security Engineer Jobs in District of Columbia

21 - 40 of 693 Jobs

Network Security Engineer (NAC) - North Central (Remote in the U.S.)Job Title - Network Security Engineer (NAC) - North Central (Remote in the U.S.)

GuidePoint SecurityCompany Name - GuidePoint Security

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Remote

Full-time

GuidePoint Security provides trusted cybersecurity expertise, solutions and services that help organizations make better decisions and minimize risk. By taking a three-tiered, holistic approach for evaluating security posture and ecosystems, GuidePoint enables some of the nation's top organizations, such as Fortune 500 companies and U.S. government agencies, to identify threats, optimize resources and integrate best-fit solutions that mitigate risk. We are looking for a Network Security Enginee

Senior Cybersecurity Engineer - Network Security (US Federal)Job Title - Senior Cybersecurity Engineer - Network Security (US Federal)

Workday, Inc.Company Name - Workday, Inc.

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McLean, Virginia, USA

Full-time

Your work days are brighter here. At Workday, it all began with a conversation over breakfast. When our founders met at a sunny California diner, they came up with an idea to revolutionize the enterprise software market. And when we began to rise, one thing that really set us apart was our culture. A culture which was driven by our value of putting our people first. And ever since, the happiness, development, and contribution of every Workmate is central to who we are. Our Workmates believe a h

Network Security Engineer - W2 Tax TermsJob Title - Network Security Engineer - W2 Tax Terms

Nivid InfoTech Inc.Company Name - Nivid InfoTech Inc.

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Remote

Contract

Network Security Engineer Duration : 24 Months Remote Work Responsibilities : Network Security Engineering Specialist At least 5 years of network/security engineering design and implementation experience.Palo Alto s PCNSE certification or equivalent experience and knowledge of Security, Routing and SwitchingCCNP certification or equivalent experience and knowledge of Security, Routing and SwitchingExperience in ITIL and ITSM.Advanced knowledge and/or experience in one or more of the following:N

Network Security Engineer 1 (Hybrid - Seattle, WA)Job Title - Network Security Engineer 1 (Hybrid - Seattle, WA)

NordstromCompany Name - Nordstrom

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Remote or Seattle, Washington, USA

Full-time

Job Description As a Network Security Engineer 1, you will be responsible for supporting the design, implementation, and maintenance of network security infrastructure, while also assisting in the integration and management of loss prevention technologies such as cameras, NVRs (Network Video Recorders), and related systems. You will collaborate with team members to ensure the reliability, performance, and security of systems that protect critical assets. The ideal candidate is an eager learner

Network Security Engineer (WAF) - North Central (Remote in the U.S.)Job Title - Network Security Engineer (WAF) - North Central (Remote in the U.S.)

GuidePoint SecurityCompany Name - GuidePoint Security

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Remote

Full-time

Senior Software Developer Onsite Fort Meade, MD Active Security ClearanceJob Title - Senior Software Developer Onsite Fort Meade, MD Active Security Clearance

SmoothStackCompany Name - SmoothStack

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Fort Meade, Maryland, USA

Full-time

Interviewing/Hiring NOW Senior Software Developer with experience in multiple development languages and platforms Onsite Fort Meade, MD Active Security Clearance Required!

Senior Network Architect/SME in Enterprise Facilities Security and Industrial Control Systems NetworksJob Title - Senior Network Architect/SME in Enterprise Facilities Security and Industrial Control Systems Networks

GovCIOCompany Name - GovCIO

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Bethesda, Maryland, USA

Full-time

Overview GovCIO is currently hiring for a Senior Network Architect/SME in Enterprise Level Facilities Security and Industrial Control Systems and Networks for our NIH-CIT proposal. This position is located in Bethesda, MD and is a remote/hybrid position. Responsibilities The SME role's responsibilities include: Coordinate with the Section Manager to evaluate, design, and test architecture designs and services from the roadmap backlog Lead the transition of user accepted designs and services

Security Engineer - SeniorJob Title - Security Engineer - Senior

Electronic Consulting Services, Inc (ECS Federal)Company Name - Electronic Consulting Services, Inc (ECS Federal)

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Washington, District of Columbia, USA

Full-time

Job Description ECS is seeking a Security Engineer - Senior to work in our Washington, DC office. Please Note: This position is contingent upon additional funding. ECS Federal is a leading information security and information technology company in Washington, DC. We are looking to hire a Senior Security Engineer to support a full range of cyber security services on a long-term contract in Washington DC. The position is full time/permanent and will support a US Government civilian agency. The

Sr. Security EngineerJob Title - Sr. Security Engineer

Navigant ConsultingCompany Name - Navigant Consulting

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Washington, District of Columbia, USA

Full-time

Job Family: Systems Engineering Travel Required: None Clearance Required: Active Top Secret (TS) What You Will Do: Provides the expertise to conduct systems analysis, certification and accreditation, integration of secure products, security test and evaluation, and development of complex information systems to meet information system security requirements. A broad knowledge of the technical information systems security discipline is required. The candidate will be responsible for updating sy

Sr. Network EngineerJob Title - Sr. Network Engineer

Navigant ConsultingCompany Name - Navigant Consulting

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Washington, District of Columbia, USA

Full-time

Job Family: Systems Engineering Travel Required: None Clearance Required: Active Top Secret (TS) What You Will Do: Support a federal government client's network and system security and engineering efforts. You will be responsible for guiding the implementation of program standards and the development and deployment of targeted solutions. Responsibilities of this role are as follows, to include but not limited to: Developing and maintaining the network architecture;Collaborating with other e

Senior Security OfficerJob Title - Senior Security Officer

ManTechCompany Name - ManTech

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Washington, District of Columbia, USA

Full-time

MANTECH seeks a motivated, career and customer-oriented Senior Security Officer (SSO), to join our team based in Washington, DC. As a Senior Security Officer (SSO), this position plays a critical role in supporting the SCIF facilities and industrial security (FSO) and personnel security (PERSEC) program for our customer. Responsibilities include but are not limited to: Serve as the primary SCIF access approver during normal operations (5 days/week) to include providing INDOC and special sec

Senior Security OfficerJob Title - Senior Security Officer

ManTechCompany Name - ManTech

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Washington, District of Columbia, USA

Full-time

Senior Security Engineer (Splunk Content Developer/ES Searchhead Admin)Job Title - Senior Security Engineer (Splunk Content Developer/ES Searchhead Admin)

Navy Federal Credit UnionCompany Name - Navy Federal Credit Union

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Vienna, Virginia, USA

Full-time

Overview We are looking for a Splunk Content Developer/ES Search head Admin that can come in and take ownership of day-to-day Operations with minimal spin-up time. The successful candidate will be a member of a high performing team of certified Splunk Enterprise and Splunk ES administrators. You will partner with additional teams within Navy Federal Credit Union to protect the Navy Federal brand, data, and IT assets from cyber-based threats in support of our Cybersecurity Operations Center (CSOC

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Alexandria, Virginia, USA

Full-time

Leidos is seeking a Security Engineer to support the execution of strategic, operational, and organizational PPSM objectives. This position can be based out of any of our three locations - Alexandria, VA, Fort Meade, MD, or Chambersburg, PA. The position is primarily on-site, but partial telework may be available at the discretion of our customer and program management. Responsibilities: Ensure compliance with DoD-approved standards, architectures, and guidelines (e.g., DISN) and conduct qualit

Network Security AnalystJob Title - Network Security Analyst

Cymertek CorporationCompany Name - Cymertek Corporation

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Tysons, Virginia, USA

Full-time

Network Security Analyst LOCATION Tysons, VA 22182 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

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Alexandria, Virginia, USA

Full-time

Description Leidos is seeking a Security Engineer to support the execution of strategic, operational, and organizational PPSM objectives. This position can be based out of any of our three locations - Alexandria, VA, Fort Meade, MD, or Chambersburg, PA. The position is primarily on-site, but partial telework may be available at the discretion of our customer and program management. Responsibilities: Ensure compliance with DoD-approved standards, architectures, and guidelines (e.g., DISN) and c

Senior Information System Security EngineerJob Title - Senior Information System Security Engineer

Electronic Consulting Services, Inc (ECS Federal)Company Name - Electronic Consulting Services, Inc (ECS Federal)

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Washington, District of Columbia, USA

Full-time

Job Description ECS is seeking a Senior Information System Security Engineer to work in our Washington, DC office. An Information Systems Security Engineer (ISSE) is responsible for designing, implementing, and maintaining security measures to protect an organization's information systems and data assets from cybersecurity threats and vulnerabilities. Work closely with IT teams, management, and other stakeholders to ensure the confidentiality, integrity, and availability of sensitive informati

Senior Information System Security Officer - Top Secret with SCI REQUIRED - On Site OnlyJob Title - Senior Information System Security Officer - Top Secret with SCI REQUIRED - On Site Only

Akima, LLCCompany Name - Akima, LLC

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Alexandria, Virginia, USA

Full-time

ADM is looking for a Principal Information Assurance Subject Matter Expert - RMF Admin to work in Alexandria, VA. To join our team of outstanding professionals, apply today! Responsibilities Collaborate with security architects and engineers to design, implement, and maintain secure system architectures.Conduct risk assessments and provide guidance on security control selection and implementation based on NIST guidelines.Work with stakeholders to integrate security engineering best practices i

Senior Network Operations AdministratorJob Title - Senior Network Operations Administrator

LeidosCompany Name - Leidos

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Lorton, Virginia, USA

Full-time

The Multi Domain Solutions Division at Leidos is looking for a Senior Network Operations Administrator to support a fast-paced program with the Air Force Life Cycle Management Center. This role involves supporting the delivery of comprehensive IT and support services to ensure mission success while adhering to DoD standards and regulations. The Senior Network Operations Administrator will ensure accounts for the enterprise solution are created and managed across multiple classification levels. P

Lead Security EngineerJob Title - Lead Security Engineer

SAICCompany Name - SAIC

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Washington, District of Columbia, USA

Full-time

Job ID: 2506810 Location: WASHINGTON, DC, US Date Posted: 2025-06-25 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: No Description SAIC seeks a Lead Security Engineer to assist the Department of Transportation's Cybersecurity mission by supporting the implementation of IPv6 networking capabilities by joining a dedicated team of cyb