Senior Network Security Engineer Jobs in District of Columbia

41 - 60 of 656 Jobs

Senior Application Security EngineerJob Title - Senior Application Security Engineer

Software Guidance & AssistanceCompany Name - Software Guidance & Assistance

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Rockville, Maryland, USA

Contract

Software Guidance & Assistance, Inc., (SGA), is searching for a Senior Application Security Architect for a Contract assignment with one of our premier Regulatory clients in Rockville, MD. This role is hybrid (2 days/week Oniste). The Senior Application Security Architect is responsible for designing, implementing, and overseeing enterprise-wide application security architecture and standards. This role focuses on establishing security frameworks, conducting architecture reviews, developing

Senior Systems Security EngineerJob Title - Senior Systems Security Engineer

SAICCompany Name - SAIC

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Alexandria, Virginia, USA

Full-time

Job ID: 2507174 Location: ALEXANDRIA, VA, US Date Posted: 2025-07-01 Category: Engineering and Sciences Subcategory: Systems Engineer 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 hiring a Senior Systems Security Engineer with an active TS/SCI clearance to participate in Independent Technical Risk Assessments (ITRA) and Program Protection Plan () reviews to

Lead Security EngineerJob Title - Lead Security Engineer

Eliassen GroupCompany Name - Eliassen Group

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Washington, District of Columbia, USA

Contract

Description: We are looking for a Lead Security Engineer to support a F500 client in the Washington, DC metro area. Location: Washington, DC Pay Rate: $55-$65/hr. W2 This is a contract-to-hire opportunity. Applicants must be willing and able to work on a W2 basis and convert to FTE following contract duration. For our W2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance. Responsibilities: Key Techni

Cyber Systems Security Engineer SrJob Title - Cyber Systems Security Engineer Sr

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Manassas, Virginia, USA

Full-time

Job Description What We're Doing At Lockheed Martin - Rotary and Mission Systems, we're shaping the future of Undersea Warfare (USW) systems. Our mission is to develop innovative technologies that secure our nation's defense. We are integrating state-of-the-art cybersecurity solutions into mission-critical systems to ensure resilience, integrity, and continued superiority under the sea and across domains. The Work As a Cyber Systems Security Engineer Staff, you will take a leadership role in

Lead Security EngineerJob Title - Lead Security Engineer

Apex SystemsCompany Name - Apex Systems

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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

Network EngineerJob Title - Network Engineer

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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McLean, Virginia, USA

Full-time

Job Number: R0222427 Network Engineer The Opportunity: We are seeking a dedicated mid-level Network Engineer to support the design, deployment, and maintenance of enterprise and tactical networks for the Department of Defense ( DoD ) . This role is an opportunity to apply your technical expertise in wireless, SD-WAN, and cybersecurity to build secure, resilient infrastructure that directly enhances the quality of life for military personnel and their families. You'll work on meaningful projects

Network EngineerJob Title - Network Engineer

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

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McLean, Virginia, USA

Full-time

Network Engineer The Opportunity: A well-designed network is critical to move data and enable our partner nations to achieve their missions, but how can an organization make sure their network will fit their current and evolving needs? Crafting the right network, with the right equipment and software, requires a combination of technical skill and careful planning. That's why we need you, an experienced network engineer who knows how to develop the exact network our partner nations need. As a ne

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Camp Springs, Maryland, USA

Full-time

Leidos has a career opportunity for a Security Engineer to support the Air Force National Capital Region IT Services program. The AFNCR IT Services program provides support services for information systems for Headquarters Air Force (HAF), Air Force District of Washington (AFDW), Office of the Secretary of Defense (OSD), Joint Chiefs of Staff, and other Air Force activities within the AFNCR, missions to include the Pentagon, Joint Base Andrews (JBA), Joint Base Anacostia-Bolling (JBAB), and othe

Trellix Endpoint Security EngineerJob Title - Trellix Endpoint Security Engineer

LeidosCompany Name - Leidos

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Alexandria, Virginia, USA

Full-time

Leidos has a current job opportunity for an Endpoint Security Solutions (ESS) Engineer on the DISA GSM-O program in Alexandria, VA. An active Secret security clearance and solid experience in Trellix are required. This position provides support to the ESS Lead in operating and maintaining Trellix software and clients for organizations supported by the J6. Activities that this position performs include performing systems analysis, modifying / updating systems based on results of analysis, deploy

COMSEC/Network EngineerJob Title - COMSEC/Network Engineer

LeidosCompany Name - Leidos

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Laurel, Maryland, USA

Full-time

Description Leidos has a new and exciting opportunity for a COMSEC/Network Engineer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and imme

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

Sr. Cloud Security Architect (Hybrid)Job Title - Sr. Cloud Security Architect (Hybrid)

Motus Recruiting & StaffingCompany Name - Motus Recruiting & Staffing

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Sterling, Virginia, USA

Contract

Sr. Cloud Security Architect (Hybrid) Our client, a premier global media and entertainment company, is actively seeking a motivated Sr. Cloud Security Architect. The Cloud Security Architect is a technology and process focused thought-leader with an emphasis in public cloud architecture and engineering. As a lead member of the cloud security team, the Cloud Security Architect will help support the infosec functions of policy shaping, architectural reviews, compliance, and assessment while provi

Senior Security Engineer, Sailpoint Development Team Lead - IAMJob Title - Senior Security Engineer, Sailpoint Development Team Lead - IAM

Marriott InternationalCompany Name - Marriott International

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Bethesda, Maryland, USA

Full-time

Job Description JOB SUMMARY: We are seeking an experienced and motivated Sr. Engineer to lead the Sailpoint development for our dynamic IAM team. The incumbent will play a pivotal role in guiding our development team to deliver high-quality software solution and will utilize their deep understanding of SailPoint Identity IQ, IGA best practices to delivery on complex IGA projects. This position requires a combination of technical expertise, leadership skills, and project management capabilities

Application Security EngineerJob Title - Application Security Engineer

Kforce Technology StaffingCompany Name - Kforce Technology Staffing

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McLean, Virginia, USA

Contract

RESPONSIBILITIES: Kforce has a client that is seeking an Application Security Engineer in McLean, VA. REQUIREMENTS: * High School diploma or GED * 6+ years of Information Technology experience * 3+ years of experience with supporting Static Application Security Testing (SAST), Dynamic Application Security Testing (DAST), and IDE Plug-in environments using Veracode and Burp Suite * 2+ years of experience with Java, Python, .NET, or C# * 3+ years of experience using the design and implementation

Senior Manager - Information Security Incident CommandJob Title - Senior Manager - Information Security Incident Command

Marriott InternationalCompany Name - Marriott International

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Bethesda, Maryland, USA

Full-time

Job Description JOB SUMMARY The Senior Manager supports and manages Red and Red/Blue Team ("Red Team") testing as a part of the Global Information Security (GIS) PMO Incident Command team. Triages coordination and updates of issues and backlog of strategic recommendations and roadmap items based on the Red Team assessments. Collaborates across the Global Technology organization and with key business stakeholders to deliver results. EDUCATION & EXPERIENCE Required: Bachelor's degree in Comput

Network EngineerJob Title - Network Engineer

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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McLean, Virginia, USA

Full-time

Job Number: R0221772 Network Engineer The Opportunity: We are seeking a dedicated mid-level Network Engineer to support the design, deployment, and maintenance of enterprise and tactical networks for the Department of Defense ( DoD ) . This role is an opportunity to apply your technical expertise in wireless, SD-WAN, and cybersecurity to build secure, resilient infrastructure that directly enhances the quality of life for military personnel and their families. You'll work on meaningful projects

Network EngineerJob Title - Network Engineer

AAC IncCompany Name - AAC Inc

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Rockville, Maryland, USA

Full-time

Manages, coordinates, and performs many aspects of network resource planning, analysis of needs and services and participates in operation and administration of the LAN/WAN infrastructure. This individual participates in designing/engineering solutions, planning and executing new implementations and new product integrations, and recommends LAN/WAN improvements. Provides leadership to other technical staff. Plans, executes, and manages complex technical tasks and projects. Responsible for problem

Senior Information Security AnalystJob Title - Senior Information Security Analyst

DLA PiperCompany Name - DLA Piper

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Washington, District of Columbia, USA

Full-time

DLA Piper is, at its core, bold, exceptional, collaborative and supportive. Our people are the backbone, heart and soul of our firm. Wherever you are in your professional journey, DLA Piper is a place you can engage in meaningful work and grow your career. Let s see what we can achieve. Together. Summary The Senior Information Security Analyst is responsible for identifying, investigating, and addressing both internal and external threats. This position requires a deep understanding of variou

Senior Systems Engineer Onsite Fort Meade, MD Active Security ClearanceJob Title - Senior Systems Engineer Onsite Fort Meade, MD Active Security Clearance

SmoothStackCompany Name - SmoothStack

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Fort Meade, Maryland, USA

Full-time

Interviewing/Hiring NOW Senior Systems Engineer Onsite Fort Meade, MD Active Security Clearance Required! Develops Cloud-based Solutions in conjunction with managing Cyber Security for Secured Networks

Information System Security Engineer - SeniorJob Title - Information System Security Engineer - Senior

JacobsCompany Name - Jacobs

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Washington, District of Columbia, USA

Full-time

As a Top Secret Information Systems Security Engineer (ISSE) for this program, you will be working in an organization that's mission is to develop and operate the best possible software for critical national security enterprise applications. This organization leverages SCRUM and SAFE Agile software development methodology and strong Dev Ops practices. You will be responsible for the secure design, analysis, and test of information security systems and products. You will ensure technical documen