Senior Network Security Engineer Jobs in District of Columbia

421 - 440 of 638 Jobs

Network Orchestration ArchitectJob Title - Network Orchestration Architect

Iridium Satellite LLCCompany Name - Iridium Satellite LLC

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Reston, Virginia, USA

Full-time

Company Overview Iridium is an award-winning and innovative satellite communications company with bragging rights to the only network that offers voice and data connectivity anywhere in the world. For over 20 years, Iridium's unique network and services have supported critical communications needs for individuals, businesses, and the evolving Internet of Things. At Iridium, we understand the importance of staying connected and the limitations of traditional communications networks. People across

Junior Cloud EngineerJob Title - Junior Cloud Engineer

LeidosCompany Name - Leidos

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Lorton, Virginia, USA

Full-time

The Multi Domain Solutions Division at Leidos is looking for a Junior Cloud Engineer to support a fast-paced program with the Air Force Life Cycle Management Center. The Junior Cloud Engineer will deploy, maintain, and scale hybrid cloud digital infrastructure for an Air Force Lifecycle Management Command (AFLCMC) customer. This position requires a fast-learning, high-performing candidate with a proven history of delivering cloud solutions to customers. The ideal candidate will have experience i

System Administrator (SA1) (Government)Job Title - System Administrator (SA1) (Government)

AT&T Inc.Company Name - AT&T Inc.

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Columbia, Maryland, USA

Full-time

Job Description: AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers' mission. MAROONMIDNIGHTS (MMN) Provide IT support and solutions developed for National Cryptologic University classified training

Cloud Security ArchitectJob Title - Cloud Security Architect

MindlanceCompany Name - Mindlance

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Washington, District of Columbia, USA

Contract, Third Party

Position Summary: Job Title: Architect Premium Sr. Security Architect Location: Washington, DC 20433 Duration: 12 Months Long Term Contract Position Summary: We are seeking a highly experienced Security Architect with strong hands-on expertise in Azure Cloud Security, AI/ML technologies, and DevSecOps practices. This role will lead enterprise-level security strategy and architecture initiatives, with a focus on cloud-native applications, infrastructure as code(IaC), and AI/ML integrations. Key

Senior Systems Engineer, IT InfrastructureJob Title - Senior Systems Engineer, IT Infrastructure

tax.comCompany Name - tax.com

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Remote or Manila, Metro Manila, Philippines

Full-time

Why Ryan? Flexible Work EnvironmentAward-Winning CultureWorld-Class Benefits and CompensationAccelerated Career PathCommunity OutreachMentorship OpportunitiesWellness-Centric Benefits The Senior Systems Engineer demonstrates superb technical competency and time management skills to deliver mission-critical infrastructure and ensure the highest levels of availability, performance, and security. Duties and Responsibilities: People: Act as a technical reference for staff on existing and upcoming

System AdministratorJob Title - System Administrator

JacobsCompany Name - Jacobs

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Severn, Maryland, USA

Full-time

Amentum is hiring a professional IT Systems Administrator that will successfully support and maintain a stable IT infrastructure for multiple SCIF and commercial environments. Providing support on telecommunications circuits, networking equipment, servers, AD enterprise, applications, and desktop support. Ensuring secure and stable operation of systems, seamless flow of information and proper functioning of endpoints throughout the organizations operations. Working as part of a team triaging of

Information Systems Security Officer - Clearance RequiredJob Title - Information Systems Security Officer - Clearance Required

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Fort Meade, Maryland, USA

Full-time

Job Description What We're Doing: Lockheed Martin, Rotary Mission Systems Cyber & Intelligence invites you to step up to one of today's most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you'll protect the networks that our citizens and the world depend upon each minute: Financial assets. Healthcare information. Critical infrastructure. Hazardous materials. The uninterrupted flow of energy that keeps moder

Principal Security ResearcherJob Title - Principal Security Researcher

Request Technology, LLCCompany Name - Request Technology, LLC

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Remote

Full-time

We are unable to sponsor as this is a permanent full-time role A prestigious company is looking for a Principal Security Researcher. This principal will reverse engineer malicious binaries to find ransomware samples. The principal must have experience with languages such as Python, Ruby, C++, Rust, and cryptographic algorithms. Responsibilities: Reverse engineer malicious or unknown binaries to find insights and intelligence in ransomware samples and threat actor toolkitsUse and develop tools

Security LeadJob Title - Security Lead

LeidosCompany Name - Leidos

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Springfield, Virginia, USA

Full-time

Description Job Description We are seeking a Security Lead is responsible for overseeing all aspects of security operations at a designated site, ensuring strict adherence to security Standard Operating Procedures (SOPs), federal regulations, and agency-specific policies. This position plays a critical role in the protection of classified and sensitive information and equipment, ensuring compliance with NRO and other federal agency requirements. The Site Security Lead acts as the primary liaiso

Information Systems Security OfficerJob Title - Information Systems Security Officer

Kratos Defense and Security Solutions, Inc.Company Name - Kratos Defense and Security Solutions, Inc.

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Glen Burnie, Maryland, USA

Full-time

Job Description The Information Systems Security Officer is responsible for the day-to-day operations and support of classified information systems at our Kratos Defense & Rocket Support Services, Glen Burnie, MD facility. This will include physical and environmental protection, personnel security, incident handling, security training and awareness. The successful candidate will be required to work in close coordination with the site's ISSM in monitoring the information system(s) in its enviro

Personnel Security SpecialistJob Title - Personnel Security Specialist

Redhorse CorporationCompany Name - Redhorse Corporation

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Arlington, Virginia, USA

Full-time

About the Organization Now is a great time to join Redhorse Corporation. We are a solution-driven company delivering data insights and technology solutions to customers with missions critical to U.S. national interests. We're looking for thoughtful, skilled professionals who thrive as trusted partners building technology-agnostic solutions and want to apply their talents supporting customers with difficult and important mission sets. About the Role Redhorse Corporation is seeking a highly ski

Junior Security Training Consultant w/TS/SCIJob Title - Junior Security Training Consultant w/TS/SCI

Judge Group, Inc.Company Name - Judge Group, Inc.

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Washington, District of Columbia, USA

Contract

Location: Washington, DC Salary: $35.00 USD Hourly - $45.00 USD Hourly Description: Title : Junior Security Training Consultant with Top Secret/SCI Location: Washington, 20016 Hybrid Contract To Hire Job Description Responsibilities: Handle daily operational tasks for the IT Security Operations Team (Account requests, entry/exit requests, file transfers, decommissioning/sanitization guidance, and provide daily guidance as needed. Support the Government in the fulfillment of all IT security

Cybersecurity Strategy, Risk, and Resilience Security Strategy Solutions ArchitectJob Title - Cybersecurity Strategy, Risk, and Resilience Security Strategy Solutions Architect

TikTokCompany Name - TikTok

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Washington, District of Columbia, USA

Full-time

Location : Washington D.C. Employment Type : Regular Job Code : A79489B Apply to this job Share this listing: Responsibilities The mission of TikTok's Global Security Organization is to build and earn trust by reducing risk and securing our businesses and products. Also known as "GSO", this team is the foundation of our efforts to keep TikTok safe, secure, and operating at scale for over 1 billion people around the world. We work to ensure that the TikTok platform is safe and secure, that

Information Systems Security OfficerJob Title - Information Systems Security Officer

Base-2 Solutions, LLCCompany Name - Base-2 Solutions, LLC

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Fort Meade, Maryland, USA

Full-time

Job Description: Base-2 Solutions is seeking a dedicated and detail-oriented Information Systems Security Officer (ISSO) to join our team. Our ISSOs are responsible for ensuring the security posture of mission-critical systems by supporting compliance efforts, managing risk, and enforcing security policies. We're looking for individuals who excel at navigating complex cybersecurity environments, maintaining meticulous documentation, and fostering collaboration between technical teams and govern

Hardware EngineerJob Title - Hardware Engineer

NightwingCompany Name - Nightwing

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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

Security Control AssessorJob Title - Security Control Assessor

Apex SystemsCompany Name - Apex Systems

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Arlington, Virginia, USA

Full-time

Job#: 2082695 Job Description: Overview We are seeking a highly experienced Security Control Assessor (SCA) to provide expert-level cybersecurity assessment, compliance, and risk management support across the DoD SAP IT enterprise. This role is critical in guiding programs through the Risk Management Framework (RMF), validating security controls, and ensuring enterprise-wide adherence to DoD cybersecurity policies. The ideal candidate will bring deep technical knowledge, strong analytical skill

Director, Infrastructure Security Engineering (Remote)Job Title - Director, Infrastructure Security Engineering (Remote)

INSPYR SolutionsCompany Name - INSPYR Solutions

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Remote

Full-time

Role: Director, Infrastructure Security Engineering Location: Remote (EST/CST) Duration: Full Time, Direct Hire Compensation: $200-240k/yr. Work Requirements: , Holders or Authorized to Work in USIf interested, please contact Margot Parsons at or call THE JOB: As a key member of our Infrastructure Security Engineering team, you will be at the forefront of our security transformation, cultivating a security-first mindset throughout our organization. Your mission is to build and lead the new team

Alternate Information System Security OfficerJob Title - Alternate Information System Security Officer

Cayuse Holdings, LLCCompany Name - Cayuse Holdings, LLC

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Arlington, Virginia, USA

Full-time

Overview The Work The Alternate Information System Security Officer (AISSO) is responsible for providing support to senior ISSOs for implementing, and enforcing information systems security policies, standards, and methodologies and assist with preparation and maintenance of documentation. Assist in the evaluation of security solutions to ensure they meet security requirements for processing classified information. Assist with the CM for information system security software, hardware, and firmwa

Information Security Professionals ISSO ISSEJob Title - Information Security Professionals ISSO ISSE

LeidosCompany Name - Leidos

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Fort Meade, Maryland, USA

Full-time

Leidos is seeking Information Security Professionals for programs 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 immediate vesting, Fle

Information Assurance/Security SpecialistJob Title - Information Assurance/Security Specialist

UVS InfotechCompany Name - UVS Infotech

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Washington, District of Columbia, USA

Full-time

Information Assurance/Security Specialist About UVS Infotech: UVS Infotech is a Laurel, Maryland-based, IT System Integrator with expertise in Emerging Technologies: Artificial Intelligence, Machine Learning, Robotic Process Automation, Blockchain, Identity & Access Management, and Identity Proofing. We help federal agencies modernize legacy systems, enhance decision-making, and improve service delivery. Our team blends technical excellence with deep domain knowledge to drive innovation in missi