Network security Jobs in District of Columbia

241 - 260 of 1,058 Jobs

Cloud/DevOps Engineer.Job Title - Cloud/DevOps Engineer.

NightwingCompany Name - Nightwing

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Remote or Sterling, Virginia, USA

Full-time

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th

Cybersecurity EngineerJob Title - Cybersecurity Engineer

Cymertek CorporationCompany Name - Cymertek Corporation

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Tysons, Virginia, USA

Full-time

Cybersecurity Engineer LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a skilled and passionate Cybersecurity Engineer to join our team and play a pivotal role in protecting our organization's critical systems and data. This position offers the opportunity to design, implement, and maintain robust security measures while collaborating with a talented team to address evolving cyber threats. The ideal cand

SIEM EngineerJob Title - SIEM Engineer

Cymertek CorporationCompany Name - Cymertek Corporation

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Reston, Virginia, USA

Full-time

SIEM Engineer LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a skilled and proactive SIEM Engineer to join our cybersecurity team and play a critical role in safeguarding our systems and data. In this role, you will design, implement, and manage Security Information and Event Management (SIEM) solutions, ensuring real-time monitoring, threat detection, and effective incident response. Collaborating with

Firewall Security EngineerJob Title - Firewall Security Engineer

HL Solutions LLCCompany Name - HL Solutions LLC

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Remote

Contract, Third Party

Firewall Security Engineer Required Qualifications Bachelor s degree in Computer Science, Cybersecurity, or related field (or equivalent experience)7+ years of experience in network security, firewall management, or related rolesStrong experience with Palo Alto Firewalls, Panorama, and IDS/IPSExperience managing Infoblox IPAMIn-depth understanding of:Threat analysis and responseSystem security vulnerabilitiesAuthentication and security protocolsNetwork protocols (e.g., TCP/IP, UDP, IPSEC, HTTP)H

Network System AdministratorJob Title - Network System Administrator

Cymertek CorporationCompany Name - Cymertek Corporation

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Reston, Virginia, USA

Full-time

Network System Administrator 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 dedicated and detail-oriented Network Systems Administrator to join our team and oversee the design, implementation, and maintenance of our network and system infrastructure. In this role, you will ensure the reliability, security, and efficiency of both network operations and system performance. Collaborating with a team

AWS Full Stack DeveloperJob Title - AWS Full Stack Developer

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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McLean, Virginia, USA

Full-time

Job Number: R0218953 AWS Full Stack Developer The Opportunity: As a full stack developer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you're looking for the chance to not just develop sof tware, but to create a system that will make a difference, we need you on our team. We're looking for an experienced developer like you with the skills needed to develop sof tware and systems from vision to production-ready. This role is more than just coding.

Cyber Network Forensic Analyst IIIJob Title - Cyber Network Forensic Analyst III

NightwingCompany Name - Nightwing

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Sterling, Virginia, USA

Full-time

CNO Software Developer with C and PythonJob Title - CNO Software Developer with C and Python

Cymertek CorporationCompany Name - Cymertek Corporation

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Reston, Virginia, USA

Full-time

CNO Software Developer with C and Python 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 talented CNO (Computer Network Operations) Software Developer with expertise in C and Python to join our team. In this role, you will develop and maintain software solutions that support critical network operations, ensuring the performance, security, and efficiency of our systems. The ideal candidate will have

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

System Security EngineerJob Title - System Security Engineer

Cymertek CorporationCompany Name - Cymertek Corporation

•

Tysons, Virginia, USA

Full-time

System Security Engineer LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly motivated and detail-oriented System Security Engineer to design, implement, and maintain security measures that protect our critical systems and data. In this role, you will work closely with cross-functional teams to identify vulnerabilities, develop robust security solutions, and ensure compliance with industry standards

Cross-Domain Software DeveloperJob Title - Cross-Domain Software Developer

Cymertek CorporationCompany Name - Cymertek Corporation

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Reston, Virginia, USA

Full-time

Cross-Domain Software Developer LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a talented and innovative Cross-Domain Software Developer to design, implement, and maintain secure solutions for transferring data across varied security domains. In this role, you will work on cutting-edge technologies to develop software that ensures seamless and secure communication between systems with differing classifi

Engineering Apprentice - Systems EngineeringJob Title - Engineering Apprentice - Systems Engineering

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Manassas, Virginia, USA

Full-time

Standard Job Description For use only with approval from corporate compensation or RMS Compensation. An employee in the engineering apprenticeship program will perform a variety of duties in the sustainment of existing products to include: assisting with engineering documentation, technical data maintenance and modification, training material maintenance, and mechanical, electrical maintenance to include grooming, upgrade, and modification of program products and test platforms. This employee w

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

Senior Firewall EngineerJob Title - Senior Firewall Engineer

SAICCompany Name - SAIC

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Quantico, Virginia, USA

Full-time

Job ID: 2507101 Location: QUANTICO, VA, US Date Posted: 2025-07-02 Category: Information Technology Subcategory: Network Engineer Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: Top Secret Clearance Level Must Be Able to Obtain: TS/SCI Potential for Remote Work: No Description Introduction: Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capa

Cyber Network Forensic Analyst IIJob Title - Cyber Network Forensic Analyst II

NightwingCompany Name - Nightwing

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Sterling, Virginia, USA

Full-time

Cybersecurity AnalystJob Title - Cybersecurity Analyst

Cymertek CorporationCompany Name - Cymertek Corporation

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Reston, Virginia, USA

Full-time

Cybersecurity Analyst 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 Cybersecurity Analyst to join our team and help safeguard our systems and data from potential threats. In this role, you will monitor and analyze security events, identify vulnerabilities, and implement measures to protect against cyberattacks. You will work closely with teams across the organization to

Network ArchitectJob Title - Network Architect

Aduril IndustriesCompany Name - Aduril Industries

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Washington, District of Columbia, USA

Full-time

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c

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

iOS Vulnerability Engineer (Software)Job Title - iOS Vulnerability Engineer (Software)

Cymertek CorporationCompany Name - Cymertek Corporation

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Chantilly, Virginia, USA

Full-time

iOS Vulnerability Engineer (Software) 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 highly skilled and innovative iOS Vulnerability Engineer (Software) to join our team and help identify, analyze, and mitigate security vulnerabilities in iOS systems and applications. In this role, you will focus on uncovering potential threats, developing secure solutions, and ensuring the integrity of iOS pla

Datacenter/Fiber Optics/OTDR Specialist (ONSITE)(3 Openings)Job Title - Datacenter/Fiber Optics/OTDR Specialist (ONSITE)(3 Openings)

NetSource, Inc.Company Name - NetSource, Inc.

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Sterling, Virginia, USA

Contract

Please submit your resume only if you have OTDR/Fiber Optics Experience. All other resumes will be rejected. Expert level of OTDR. Client needs someone who can grab an OTDR, plug it in, pinpoint the issue, and fix it not someone who just lists it as a buzzword. There will be a test in the interview for OTDR tracing. Please note that this is a 1-year long term contract position. Key locations in VA: IADSterling Overview The Datacenter Fiber Specialist will be responsible for ensuring the integr