computer network security analyst Jobs in reston, va

Refine Results
681 - 700 of 3,256 Jobs

Azure Cloud & Imperva Data Security Fabric (DSF) Engineer

DMI

Arlington, Virginia, USA

Full-time

About DMI DMI is a leading provider of digital services and technology solutions, headquartered in Tysons Corner, VA. With a focus on end-to-end managed IT services, including managed mobility, cloud, cybersecurity, network operations, and application development, DMI supports public sector agencies and commercial enterprises around the globe. Recognized as a Top Workplace, DMI is committed to delivering secure, ef?cient, and cost-effective solutions that drive measurable results. Learn more at

System Administrator - Sr

AAC Inc

Rockville, Maryland, USA

Full-time

Supervise and manage the daily activities of configuration and operation of systems which may be mainframe, mini, or client/server based. Plan and monitor the optimization of system operation and resource utilization and perform systems capacity analysis and planning. Plan and monitor assistance to users in accessing and using business systems. Bachelor's degree in Computer Science, Engineering, or related field and 7 years of relevant work experience in IT customer support. Additional experienc

Senior DevOps Engineer- Autonomous Database (Join OCI-Ns2)

Oracle Corporation

Reston, Virginia, USA

Full-time

Job Description NOTE: Candidate MUST POSSESS U.S. CITIZENSHIP as this role will support Oracle's Government Customers TS/SCI w/Poly Security Clearance Required Are you interested in the exciting challenges of building and operating large-scale distributed infrastructure for the cloud? Oracle's Cloud Infrastructure (OCI) National Security Sector Group is building its next generation of Cloud IaaS/PaaS/SaaS technologies that operate at high scale in a broadly distributed multi-tenant environmen

Senior Systems Engineer

General Dynamics

Alexandria, Virginia, USA

Full-time

This is an unpaid fellowship through the Department of Defense (DoD) SkillBridge Program. The fellow selected for this role will not receive compensation or benefits from GDIT and will not be an employee, agent or contractor of GDIT but rather will remain an employee of the DoD and will receive compensation and benefits through the DoD. Type of Requisition: Regular Clearance Level Must Currently Posses: Top Secret Clearance Level Must Be Able To Obtain: Top Secret Public Trust/Other Required

Systems Administrator

Lockheed Martin Corporation

Springfield, Virginia, USA

Full-time

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutio

SAP NS2 Director - Security Engineering

SAP Americas, Inc.

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

Enterprise Architect / Systems Engineer

Leidos

Bethesda, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for an Enterprise Architect / Systems 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

Principal Network Engineer

Leidos

McLean, Virginia, USA

Full-time

Leidos has a new and exciting opportunity for a Principal 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 immediate ves

Modeling Simulation SW Engineer

SAIC

Arlington, Virginia, USA

Full-time

Job ID: 2503260 Location: ARLINGTON, VA, US Date Posted: 2025-05-05 Category: Software Subcategory: SW Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Secret Potential for Remote Work: Yes Description The Missile Defense Modeling and Simulation team at SAIC is seeking a Modeling and Simulation (M&S) software developer to support the customer in a fast-paced environment with simulation-driven assessments an

Oracle Cloud Engineer

ManTech

Herndon, Virginia, USA

Full-time

ManTech seeks a motivated, career and customer-oriented Oracle Cloud Engineer to join our team in Herndon, Virginia. The Oracle Cloud Engineer will be tasked to design, implement, and maintain cloud-based solutions on Oracle Cloud Infrastructure (OCI) supporting a high priority mission at one of our National Intelligence Customers. In this role, you will work closely with architects, DevOps, and database teams to optimize Oracle cloud environments, ensure security and scalability, and support m

Software Architecture Engineering and Cloud Computing Engineer

Aerospace Corporation

Arlington, Virginia, USA

Full-time

The Aerospace Corporation is the trusted partner to the nation's space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space- delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers. When you join our team, you'll be part of a special collection of problem solvers,

Sr Assoc, Software Engineer (Herndon, VA)

Harris Corporation

Herndon, Virginia, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie

DevOps Engineer

Cymertek Corporation

Tysons, Virginia, USA

Full-time

DevOps Engineer LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a motivated and innovative DevOps Engineer to join our team and help bridge the gap between development and operations. In this role, you will design, implement, and manage automated workflows and pipelines to enhance software delivery and system reliability. You will collaborate closely with development, QA, and IT teams to optimize per

DevOps Engineer

Cymertek Corporation

Reston, Virginia, USA

Full-time

DevOps Engineer 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 motivated and innovative DevOps Engineer to join our team and help bridge the gap between development and operations. In this role, you will design, implement, and manage automated workflows and pipelines to enhance software delivery and system reliability. You will collaborate closely with development, QA, and IT teams to optimize per

IT Specialist (TS/SCI Full Scope Polygraph Required)

TEKsystems c/o Allegis Group

Herndon, Virginia, USA

Full-time

This opportunity requires a current TS/SCI with Full Scope Polygraph prior to interviewing. Description Install and configure hardware operating systems, applications, update patches etc. Setup new user accounts/profiles and decommission exiting employees in a timely manner with SLA Process all Account Unlocks and Password Resets Respond to in-bound calls, emails, chats, and customer walk-ups same day Troubleshoot and resolve end-user hardware, operating system, network connectivity, and softwar

OCONUS Field Engineer - TS/SCI Polygraph Required

Leidos

Chantilly, Virginia, USA

Full-time

We are seeking mid to senior field engineers to join our international team in an exciting OCONUS location. The team is made-up of highly technical and motivated individuals. The engineer for this role will troubleshoot complex problems, as such, this individual must be an excellent problem solver and work well in a collaborative team environment. The ideal candidate will have prior experience as either a systems engineer or systems administrator. Prior OCONUS experience and IP networking knowle

Chief Security Officer (CSO)

Swift

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

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

SAP Americas, Inc.

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

ISSE/Security Engineer - TS/SCI with Polygraph

General Dynamics

Herndon, 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: Systems Engineering Job Qualifications: Skills: Information Systems, System Security, Systems Engineering Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Seize your opportunity to make a personal impact as an ISSE/Security Enginee

Information Security Engineer

Congressional Budget Office

Washington, District of Columbia, USA

Full-time

The Congressional Budget Office is a small nonpartisan agency that provides independent, objective economic and budget analysis to the Congress. The agency seeks a skilled and experienced information security engineer to manage an effective program to protect its information systems. The information security engineer develops and applies the tools and approach necessary to protect CBO s network and computer systems. This position involves a composite of engineering expertise with hands-on incide