Security Specialist Jobs in Washington, DC

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IT Service Management Specialist

Electronic Consulting Services, Inc (ECS Federal)

Arlington, Virginia, USA

Full-time

Job Description ECS is seeking a ServiceNow ITSM (IT Service Management) Specialist to work remotely . The ideal resource will be responsible for: Maintaining the health, performance, and reliability of the ServiceNow platform. Configure and customize ServiceNow applications, including workflows, forms, business rules, and reporting capabilities to meet operational requirements. Manage user roles, permissions, and access control in alignment with security policies and organizational standards. P

Senior Mechanical Engineering Specialist

Booz Allen Hamilton

McLean, Virginia, USA

Full-time

Job Number: R0220872 Mechanical Engineering Specialist, Senior Key Role: Provide engineering review, coordination, and oversight for operations, maintenance, repair, and construction work. Oversee and coordinate activities with trade shops, including prioritizing work, reviewing ongoing projects, inspecting installed equipment, and overseeing and coordinating work orders, service orders, and projects. Plan, c ond uct, and direct projects or major phases of significant projects and coordinate the

SAP Developer

Credence Management Solutions

McLean, Virginia, USA

Full-time

Overview At Credence, we support our clients' mission-critical needs, powered by technology. We provide cutting-edge solutions, including AI/ML, enterprise modernization, and advanced intelligence capabilities, to the largest defense and health federal organizations. Through partnership and trust, we increase mission success for war-fighters and secure our nation for a better future. We are privately held, are repeatedly recognized as a top place to work, and have been on the Inc. 5000 Fastest G

Senior Specialist, Systems Engineering - Space Intelligence Analyst

Harris Corporation

Springfield, 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

SD-WAN Network Engineer

SAIC

Beltsville, Maryland, USA

Full-time

Job ID: Location: BELTSVILLE, MD, US Date Posted: 2025-07-07 Category: Information Technology Subcategory: Network Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Top Secret Potential for Remote Work: Yes Description This is an opening for an SD-WAN Senior Network Engineer to support the Department of State's (DoS) Diplomatic Technology Operations Division. This program provides transparent, interconnected

F-35 Help Desk Specialist | Secret clearance

General Dynamics

Arlington, 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: Help Desk Job Qualifications: Skills: BMC Remedy Ticketing System, Help Desk Support, IT Help Desk Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Transform technology into opportunity as a Help Desk Specialist with GDIT. A career in enterprise IT means connecting and e

SD-WAN Network Engineer

SAIC

Springfield, Virginia, USA

Full-time

Job ID: 2507077 Location: SPRINGFIELD, VA, US Date Posted: 2025-07-07 Category: Information Technology Subcategory: Network Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Top Secret Potential for Remote Work: Yes Description This is an opening for an SD-WAN Senior Network Engineer to support the Department of State's (DoS) Diplomatic Technology Operations Division. This program provides transparent, inter

Database Administrator

Cymertek Corporation

Reston, Virginia, USA

Full-time

Database Administrator LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY Are you passionate about managing and optimizing data systems to ensure seamless performance and reliability? We are seeking a dedicated Database Administrator to join our team and play a key role in maintaining and enhancing our database environments. In this position, you'll oversee critical data operations, implement security measures, and suppor

Senior Specialist, Systems Engineering (User Acceptance Tester)

Harris Corporation

Springfield, 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

Software Assurance Cybersecurity Specialist (Zero Trust/AI)

GovCIO

Washington, District of Columbia, USA

Full-time

Overview GovCIO is looking for a Software Assurance Cybersecurity Specialist (Zero Trust/AI) with a TS/SCI clearance in Washington, DC. This is is a hybrid schedule, 2-3 days onsite weekly. Responsibilities Function as the Supply Chain Risk Management (SCRM) point of contact Develop SCRM implementation roadmaps with built-in Zero Trust and Enterprise Audit related actions included Conduct software source code reviews using automated tools and manual processes and provide recommended changes

Advanced Manufacturing Technical Specialist

Guidehouse

McLean, Virginia, USA

Full-time

Job Family: Technology Consulting Travel Required: Up to 25% Clearance Required: Active Secret What You Will Do: Join a high-performing management consulting team supporting important Department of Defense (DoD) customers across the globe. The Advanced Manufacturing Technical Specialist position is for an Associate Director that will join other advisory consultants and subject matter experts for Guidehouse Advanced Manufacturing capabilities, which includes research, development, and pilot de

Advanced Manufacturing Technical Specialist

Guidehouse

McLean, Virginia, USA

Full-time

Job Family: Technology Consulting Travel Required: Up to 25% Clearance Required: Active Secret What You Will Do: Join a high-performing management consulting team supporting important Department of Defense (DoD) customers across the globe. The Advanced Manufacturing Technical Specialist position is for an Associate Director that will join other advisory consultants and subject matter experts for Guidehouse Advanced Manufacturing capabilities, which includes research, development, and pilot de

System Administrator

Cymertek Corporation

Tysons, Virginia, USA

Full-time

System Administrator LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a proactive and detail-oriented System Administrator to join our team and help maintain the stability, security, and performance of our IT infrastructure. In this role, you will be responsible for managing servers, networks, and other critical systems, ensuring that they run efficiently and securely. You will also handle system updates,

Network System Administrator

Cymertek Corporation

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

Database Administrator

Cymertek Corporation

Chantilly, Virginia, USA

Full-time

Database Administrator LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY Are you passionate about managing and optimizing data systems to ensure seamless performance and reliability? We are seeking a dedicated Database Administrator to join our team and play a key role in maintaining and enhancing our database environments. In this position, you'll oversee critical data operations, implement security measures, and sup

Archer System Administrator and Data Management Specialist - NNSA RMF

Accenture LLP

Washington, District of Columbia, 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

IT Support Specialist (TS/SCI w Poly)

General Dynamics

Annapolis, 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: Help Desk Job Qualifications: Skills: Computer Hardware, Information Technology (IT), Remote Access, Remote Support, Troubleshooting Certifications: None Experience: 0 + years of related experience ship Required: Yes Job Description: Help Desk Technician Transform technology into o

Cross Domain Specialist

Booz Allen Hamilton

Columbia, Maryland, USA

Full-time

Job Number: R0213714 Cross Domain Specialist The Opportunity: Your te chn ical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the te chn ology supporting the U.S. Federal Government? We're looking for a Cross Domain Spe cia list to help us design, deploy, and maintain Cross Domain Solutions for an enterprise environment. As a Cross Domain Spe cia list on our project, you'll constantly look for ways to make the infrastructure b

Sr Specialist, Systems Engineer (Cost Engineer)

L3Harris Technologies

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

Cyber Incident Response Analyst IV

Nightwing

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