Senior Network Security Engineer Jobs in District of Columbia

501 - 520 of 665 Jobs

Industrial Security Representative (CPSO)Job Title - Industrial Security Representative (CPSO)

LeidosCompany Name - Leidos

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Alexandria, Virginia, USA

Full-time

Description The Digital Modernization Group at Leidos is seeking an Industrial Security Representative (ISR)/Contractor Program Security Officer (CPSO) supporting work for the Defense Threat Reduction Agency (DTRA) in Alexandria, VA. The position will be a part of the Leidos DoD Enterprise IT Modernization (DEIM) Security Team in the application of Leidos security standards and practices to existing US government facilities identified by the contract. The ISR/CPSO is responsible for safeguardin

Cyber Security Operations ManagerJob Title - Cyber Security Operations Manager

Viasat, Inc.Company Name - Viasat, Inc.

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Remote

Full-time

About us One team. Global challenges. Infinite opportunities. At Viasat, we're on a mission to deliver connections with the capacity to change the world. For more than 35 years, Viasat has helped shape how consumers, businesses, governments and militaries around the globe communicate. We're looking for people who think big, act fearlessly, and create an inclusive environment that drives positive impact to join our team. What you'll do Become a leader in our mission to connect the world securel

DevSecOps AWS Cloud Security Services Onsite Manassas VAJob Title - DevSecOps AWS Cloud Security Services Onsite Manassas VA

SmoothStackCompany Name - SmoothStack

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Manassas, Virginia, USA

Contract, Third Party

DevSecOps AWS Cloud Security Services Onsite Manassas VA In-Person Interview

Security AnalystJob Title - Security Analyst

SAICCompany Name - SAIC

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Arlington, Virginia, USA

Full-time

Job ID: 2507505 Location: ARLINGTON, VA, US Date Posted: 2025-07-14 Category: Security Subcategory: Security 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 seeking a Security Analyst with an active TS/SCI clearance to provide general administrative support to the Office of the Under Secretary of Defense for Research and Engineering (OUSD(R&E)). This position

Information System Security Officer 2Job Title - Information System Security Officer 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

Information System Security Officer 3Job Title - Information System Security Officer 3

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

SAP NS2 Intel Security and Governance, Risk & Compliance (GRC) Consultant- Onsite - Chantilly, VAJob Title - SAP NS2 Intel Security and Governance, Risk & Compliance (GRC) Consultant- Onsite - Chantilly, VA

SAP Americas, Inc.Company Name - SAP Americas, Inc.

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Herndon, Virginia, USA

Full-time

We help the world run better At SAP, we enable you to bring out your best. Our company culture is focused on collaboration and a shared passion to help the world run better. How? We focus every day on building the foundation for tomorrow and creating a workplace that embraces differences, values flexibility, and is aligned to our purpose-driven and future-focused work. We offer a highly collaborative, caring team environment with a strong focus on learning and development, recognition for your i

Security Analyst 2Job Title - Security Analyst 2

ManTechCompany Name - ManTech

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Chantilly, Virginia, USA

Full-time

Currently, ManTech is seeking a motivated, career and customer-oriented Security Analyst 2 to join our team in the Chantilly, VA area. Responsibilities include, but are not limited to: Fingerprinting NRO personnel and collecting and inputting biographical dataUploading and submitting fingerprints into the system of recordTaking the initiative, conducting work-arounds when needed, and making necessary decisions to ensure progress is made reach goalsUsing multiple NRO, DOD, and IC databases inclu

Security Analyst 2Job Title - Security Analyst 2

ManTechCompany Name - ManTech

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Chantilly, Virginia, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Security Analyst 2 to join our team in the Chantilly, VA area. Responsibilities include, but are not limited to: Fingerprinting NRO personnel and collecting and inputting biographical dataUploading and submitting fingerprints into the system of recordTaking the initiative, conducting work-arounds when needed, and making necessary decisions to ensure progress is made reach goalsUsing multiple NRO, DOD, and IC databases including, but not li

Information Security SpecialistJob Title - Information Security Specialist

SwiftCompany Name - Swift

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Manassas, Virginia, USA

Full-time

ABOUT US We're the world's leading provider of secure financial messaging services, headquartered in Belgium. We are the way the world moves value - across borders, through cities and overseas. No other organisation can address the scale, precision, pace and trust that this demands, and we're proud to support the global economy. We're unique too. We were established to find a better way for the global financial community to move value - a reliable, safe and secure approach that the community can

Information Security SpecialistJob Title - Information Security Specialist

SwiftCompany Name - Swift

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Manassas, Virginia, USA

Full-time

TOC Service Desk AgentJob Title - TOC Service Desk Agent

Apex SystemsCompany Name - Apex Systems

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Arlington, Virginia, USA

Full-time

Job#: 2060844 Job Description: Apex Systems is seeking multiple Service Desk Agents to join our team in Arlington, Virginia. Please see below for more details: The Technical Operations Center (TOC) Service Desk Agent provides mid-level support for an Information Technology (IT) Service Desk which receives and resolves incident and service request tickets through the ServiceNow service management software. The IT Service Desk supports a nearly 6000 user community within the Department of Homela

Information System Security Officer (Active Polygraph Required)Job Title - Information System Security Officer (Active Polygraph Required)

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Reston, Virginia, 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: Information Security Job Qualifications: Skills: Amazon Web Services (AWS), Plan of Action and Milestones (POA&M), Risk Management Framework Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Seize your opportunity to make a personal

Information System Security Officer (Active Polygraph Required)Job Title - Information System Security Officer (Active Polygraph Required)

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Reston, Virginia, USA

Full-time

Full Time Role - Information Security Architect - RemoteJob Title - Full Time Role - Information Security Architect - Remote

Empower ProfessionalsCompany Name - Empower Professionals

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Remote

Full-time

Role: Information Security Architect Location: Remote Duration: FTE Requirements: Security Architecture & DesignProficiency in Databricks, Azure (Data Lake, Synapse, Key Vault, Purview), AI/ML tools/solutions, and Snowflake.Experience in developing security architecture and controls for custom applications on Azure.Knowledge of best practices for API-based data ingestion and external data sharing.Ability to define secure network architecture, including virtual networks, private endpoints, firewa

Information System Security Officer (Active Polygraph Required)Job Title - Information System Security Officer (Active Polygraph Required)

General DynamicsCompany Name - General Dynamics

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Reston, Virginia, USA

Full-time

Security Analyst 3Job Title - Security Analyst 3

ManTechCompany Name - ManTech

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Chantilly, Virginia, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Security Analyst 3 to join our team in the Chantilly, VA area. Responsibilities include, but are not limited to: Managing day-to-day project operations, reporting back to the government leadCreating a plan and schedule to accomplish project objectives within the target timelineScheduling and managing fingerprint appointments and coordinating and assigning tasksCreating and maintaining project standard operating procedures (SOPs)Using multi

Associate Industrial Security RepresentativeJob Title - Associate Industrial Security Representative

LeidosCompany Name - Leidos

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Gaithersburg, Maryland, USA

Full-time

Description The Digital Modernization Sector at Leidos is seeking an Associate Industrial Security Representative to join our security team in Gaithersburg, MD. The position operates under the guidance of the Leidos DECO/Global Solutions Management Operations (GSMO) Security Manager in the application of Leidos security standards and practices to existing US government facilities identified by the contract. Primary Responsibilities: Supporting, implementing, and providing guidance to customers

M365 Engineer - TS/SCI w/PolyJob Title - M365 Engineer - TS/SCI w/Poly

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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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: Systems Engineering Job Qualifications: Skills: Microsoft Azure, Systems Design, Windows Azure Cloud Certifications: CompTIA Network + - Comp Tia Security + Certification Experience: 5 + years of related experience ship Required: Yes Job Description: M365 Engineer We are embarking

Information System Security Manager 2Job Title - Information System Security Manager 2

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time