Network Security Jobs in Washington, DC

181 - 200 of 1,236 Jobs

Information Systems Security Officer (ISSO)Job Title - Information Systems Security Officer (ISSO)

Cymertek CorporationCompany Name - Cymertek Corporation

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Reston, Virginia, USA

Full-time

Information Systems Security Officer (ISSO) 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 **Information Systems Security Officer (ISSO)** to join our team and take ownership of ensuring the security and integrity of our information systems. In this role, you will be responsible for implementing and overseeing security policies, managing risk assessments, and ensuring com

Engineering Apprentice-IntegrationJob Title - Engineering Apprentice-Integration

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

Principal Associate, Penetration TesterJob Title - Principal Associate, Penetration Tester

Capital OneCompany Name - Capital One

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Annapolis, Maryland, USA

Full-time

Job DescriptionPrincipal Associate, Penetration Tester Capital One Offensive Security reduces cyber risk by uncovering vulnerabilities and weaknesses in the enterprise cyber environment through coordinated ethical hacking and penetration testing scenarios. This position works closely with team members to plan, coordinate, execute and report on sophisticated ethical hacking exercises, to identify cyber vulnerabilities and reduce the risk posture of enterprise systems. This role will be primarily

Network ArchitectJob Title - Network Architect

Cymertek CorporationCompany Name - Cymertek Corporation

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Tysons, Virginia, USA

Full-time

Network Architect 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 innovative Network Architect to join our team and help design and implement scalable, secure, and high-performance network infrastructures. In this role, you will work closely with other technical teams to create robust network architectures that meet the growing needs of our organization and clients. You will be responsible

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

CSOC Technical LeadJob Title - CSOC Technical Lead

Constellation Software Engineering, Corp.Company Name - Constellation Software Engineering, Corp.

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Rockville, Maryland, USA

Full-time

CSOC Technical Lead **Immediate Opportunity** **Onsite** Constellation Software Engineering (CSE) is seeking a dynamic and experienced CSOC Technical Lead to join our team. In this pivotal role, you will lead a talented group of Tier 1 and Tier 2 personnel, while also serving as the Tier 3 Subject Matter Expert (SME). This techno-functional position offers a unique blend of leadership and hands-on technical responsibilities. You will guide and mentor our CSOC team, perform digital forensics, co

Network Infrastructure EngineerJob Title - Network Infrastructure Engineer

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

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Ashburn, Virginia, USA

Full-time

A fast-growing startup at the intersection of AI and decentralization is seeking a sharp Network Infrastructure Engineer to help scale mission-critical infrastructure. This role is a unique blend of DevOps, physical infrastructure, and network architecture-perfect for someone who enjoys tackling complex infrastructure challenges at scale. They recently stood up a data center in Ashburn, VA, so while the position is mostly remote, we're looking for someone local who can be on-site when needed to

Business Process Engineer 2Job Title - Business Process Engineer 2

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

ORANGE you glad that you chose RealmOne? 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 journey as we execute t

Washington, DC - Senior Network EngineerJob Title - Washington, DC - Senior Network Engineer

UnisysCompany Name - Unisys

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Washington, District of Columbia, USA

Full-time, Contract

Hello,Senior Network Engineer Washington, DC 6 months, extensionThe Network Engineer will be responsible for the design, configuration, monitoring, and troubleshooting of our enterprise network infrastructure. This includes utilizing tools such as Nagios for network monitoring, Cisco Prime for network management, Cisco Identity Services Engine (Client) for access control, and Splunk for network logging and analysis. The ideal candidate will have a deep understanding of network technologies and s

SIEM EngineerJob Title - SIEM Engineer

Cymertek CorporationCompany Name - Cymertek Corporation

•

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

System Vulnerability AnalystJob Title - System Vulnerability Analyst

Cornerstone DefenseCompany Name - Cornerstone Defense

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Columbia, Maryland, USA

Full-time

Location: Columbia, Maryland Type: Contract Job #3489 Title: System Vulnerability Analyst Location: Columbia, MD Compensation Range: $150,-$170K *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 th

System AdministratorJob Title - System Administrator

SAICCompany Name - SAIC

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Elkridge, Maryland, USA

Full-time

Job ID: 2505510-ELKRIDGE-MD Location: ELKRIDGE, MD, US Date Posted: 2025-05-08 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI Clearance Level Must Be Able to Obtain: TS/SCI with Poly Potential for Remote Work: No Description SAIC is seeking a System Administrator to support the U.S. Army Combat Capabilities Development Command (CCDEVCOM), Engineering and Systems Integration (ESI) Director

Network EngineerJob Title - Network Engineer

LMI Government Consulting (Logistics Management InCompany Name - LMI Government Consulting (Logistics Management In

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Washington, District of Columbia, USA

Contract

Overview LMI is seeking a Network Engineer with Network Operations Center / Security Operations Center (NOC/SOC) skills and understanding to support a federal program management office (PMO) charged with planning, acquiring, and managing the deployment and operation of technology and capabilities to keep our borders safe. We are seeking energetic self-starters who are focused on practical and efficient solutions delivered by an interdisciplinary, collaborative team. These individuals will provi

Network EngineerJob Title - Network Engineer

Cymertek CorporationCompany Name - Cymertek Corporation

•

Tysons, Virginia, USA

Full-time

Network 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 proactive Network Engineer to join our team and play a key role in designing, implementing, and maintaining our network infrastructure. In this role, you will ensure the reliability, security, and scalability of our network systems, troubleshoot issues, and optimize performance to meet the needs of a dynamic and growing organi

Network EngineerJob Title - Network Engineer

Cornerstone DefenseCompany Name - Cornerstone Defense

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Herndon, Virginia, USA

Full-time

Location: Herndon, Virginia Type: Contract Job #3597 Title: Data Engineer Location: Herndon, VA *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense, in partnership with our military, intelligence, and civil government customers, supports U.S. operations worldwide through the use of many different types of intelligence, satellite, and cyber technologies. Cornerstone's Intelligence Sector provides solutions to the United States Government for informatio

Senior Network AdministratorJob Title - Senior Network Administrator

General DynamicsCompany Name - General Dynamics

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Falls Church, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: Network Administration Job Qualifications: Skills: Information Technology (IT), Network Infrastructures, Network Security, Troubleshooting, Virtual Routing Forwarding (VRF) Certifications: CCNA - Cisco, CCNP - Cisco, Security+ CE - CompTIA Experience: 10 + years of related experience ship Required: Yes Job Description: Se

Enterprise Network ArchitectJob Title - Enterprise Network Architect

LeidosCompany Name - Leidos

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Lorton, Virginia, USA

Full-time

The Multi Domain Solutions Division at Leidos is looking for an experienced Enterprise Network Architect to support a fast-paced program with the Air Force Life Cycle Management Center. The ideal candidate will possess extensive experience in network engineering, a strong understanding of DoD IT requirements, and proven leadership skills. The Enterprise Network Architect will plan and execute the deployment of managed services. workstations, and networks, ensuring compliance with DoD policies an

Senior AWS Security Engineer- RemoteJob Title - Senior AWS Security Engineer- Remote

ICFCompany Name - ICF

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Remote or Reston, Virginia, USA

Full-time

*We are open to supporting 100% remote work anywhere within the continental US* ICF's Digital Modernization Division is a rapidly growing, entrepreneurial, technology department. Our team is a leading provider of Digital Transformation services for Federal agencies. Our services focus on enabling agency mission and business transformation using industry-leading low-code platforms, mobile applications, robotics process automation and data analytics platforms. We are partnered with some of the wo

Network AdministratorJob Title - Network Administrator

PeratonCompany Name - Peraton

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Linthicum Heights, Maryland, USA

Full-time

Responsibilities Design, implement, and maintain a robust and scalable network infrastructure encompassing LAN/WAN technologies, routing protocols, firewalls, load balancers, and network security tools.Proactively monitor network performance, uptime, and capacity, identifying and resolving performance bottlenecks and ensuring optimal network health.Lead troubleshooting efforts for complex network issues, conducting root cause analysis and implementing permanent solutions.Develop and maintain co

Senior Systems AdministratorJob Title - Senior Systems 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 Systems 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 Systems Administrator will ensure accounts for the enterprise solution are created and managed across multiple classification levels. Primary Responsibiliti