201 - 220 of 675 Jobs

System Administrator (SA1) (Government)

AT&T Inc.

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

Enterprise Senior Systems Administrator

General Dynamics

Albuquerque, New Mexico, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Top Secret Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Critical Systems, Enterprise Servers, Operating Systems (OS) Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: GDIT seeks a highly motivated and experienced Enterprise Senior Systems Engineer to support the Defense Th

Cyber Systems Security Engineer Staff - Skunk Works - Level 4

Lockheed Martin Corporation

Palmdale, California, USA

Full-time

Job Description The Cyber Systems Security Engineer Staff will be responsible for leading a team of fellow engineers in the designing, assembly, integration, and maintenance of System Integration Lab (SIL), particularly focusing on network planning, hardware installation, software integration support, verification, and validation of system functionality. In addition to designing and building the SIL the applicant will be responsible for ensuring the SIL is NIST/RMF/JSIG compliant and assist in

Help Desk Technician - TS/SCI

General Dynamics Information Technology

Chantilly, Virginia, USA

Full-time

Type of Requisition: Pipeline 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: Active Directory (AD), Help Desk Support, Technical Support Certifications: Security CE + - Comptia CERT Experience: 1 + years of related experience ship Required: Yes Job Description: We are GDIT. The people supporting and securing some of

SCITLS GOC Mission Systems Support - COOP

General Dynamics Information Technology

Offutt Air Force Base, Nebraska, USA

Full-time

Type of Requisition: Pipeline Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Analysis Job Qualifications: Skills: Continuity of Operations Planning, Information Technology (IT) Solutions, IT Lifecycle ManagementCertifications: NoneExperience: 8 + years of related experienceship Required: Yes Job Description: USSTRATCOM is a Combatant Command responsible for strategic deterrence,

System Administrator Level IV

General Dynamics

Laurel, Maryland, USA

Part-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 Administration Job Qualifications: Skills: Active Directory (AD), Operating Systems (OS), OS Configuration, PC Installation Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: System Administrator Level IV Description: Manag

Red Team Offensive Tool Developer **

SimVentions, Inc - Glassdoor 4.6

Virginia Beach, Virginia, USA

Full-time

Overview: SimVentions, consistently voted one Virginia's Best Places to Work, is looking for an experienced professional to join our team! As a Red Team Offensive Tool Developer, you will be responsible for the design, development, and deployment of offensive cybersecurity tools to support Red Team and penetration testing engagements. You will work collaboratively with Blue Team and Cybersecurity professionals to enhance overall cyber posture. ** Position is contingent upon award of contract,

Red Team Offensive Tool Developer **

SimVentions, Inc - Glassdoor 4.6

Virginia Beach, Virginia, USA

Full-time

Overview: SimVentions, consistently voted one Virginia's Best Places to Work, is looking for an experienced professional to join our team! As a Red Team Offensive Tool Developer, you will be responsible for the design, development, and deployment of offensive cybersecurity tools to support Red Team and penetration testing engagements. You will work collaboratively with Blue Team and Cybersecurity professionals to enhance overall cyber posture. ** Position is contingent upon award of contract, a

System Administrator Level IV

General Dynamics Information Technology

Laurel, 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 Administration Job Qualifications: Skills: Active Directory (AD), Operating Systems (OS), OS Configuration, PC Installation Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: System Administrator Level IV Description: Manag

Senior Network Engineer (Secret Clearance)

Lockheed Martin Corporation

Colorado Springs, Colorado, USA

Full-time

Job Description What We're Doing At Lockheed Martin, our Command and Control, Battle Management and Communications (C2BMC) National Team (C2NT) is pioneering the development and integration of cutting-edge technologies to advance the Missile Defense System, safeguarding the United States and its allies. Our collaborative and agile organization operates in a fast-paced environment, driving innovation through tasks such as sensor/weapon integration, algorithm development, user interface developme

Software Engineer III

Scientific Research Corporation

Reston, Virginia, USA

Full-time

Description The Software Engineer will be a member of a small team focusing on developing services and applications in a DevSecOps based environment in support of DIA. Engineering will be performed on Joint Worldwide Intelligence Communications System (JWICS) and National Security Agency Network (NSANet) connected systems. The ideal candidate will have a history of direct involvement with successful software development, testing and sustainment. Understanding user requirements and strategizing

Windows Systems Administrator

SAIC

Adelphi, Maryland, USA

Full-time

Job ID: 2507346 Location: ADELPHI, MD, US Date Posted: 2025-07-08 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: Top Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is seeking a proven Windows Systems Administrator to join the Army Research Laboratory (ARL) Information Technology (IT) Modernization program and support the full range of Enterpris

High Compute Engineer

Leidos

Bethesda, Maryland, USA

Full-time

Description At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Employees enjoy career enrichment opportunities available through mobility and de

Software Engineer Staff

Lockheed Martin Corporation

Herndon, 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

Help Desk Technician - TS/SCI

General Dynamics

Chantilly, Virginia, USA

Full-time

Type of Requisition: Pipeline 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: Active Directory (AD), Help Desk Support, Technical Support Certifications: Security CE + - Comptia CERT Experience: 1 + years of related experience ship Required: Yes Job Description: We are GDIT. The people supporting and securing some of th

Cloud Engineer

SAIC

Scott Air Force Base, Illinois, USA

Full-time

Job ID: 2507706 Location: SCOTT AFB, IL, US Date Posted: 2025-07-17 Category: Information Technology Subcategory: Cloud Comp Engr Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is seeking a Cloud Engineer to support an IT Service Management effort for USTRANSCOM located at Scott Air Force Base (AFB) in Illinois. The USTC Managed Information Technology Services

Cyber System Security Engineer Sr

Lockheed Martin Corporation

Palmdale, California, USA

Full-time

Job Description Company Overview: At Lockheed Martin, we unite passionate individuals to drive purposeful innovation, ensuring safety and solving the world's most complex challenges. Our team comprises some of the brightest minds in the industry, making Lockheed Martin an exceptional place to work. We prioritize our employees by offering diverse career opportunities that promote development and agility. With flexible schedules, competitive pay, and comprehensive benefits, we empower our employe

Global Operations Level 2 Lead (25-287) E3 / COS-M

Apex Systems

Colorado Springs, Colorado, USA

Full-time

Job#: 2076033 Job Description: Global Operations Level 2 Lead Top Secret/SCI IAT - Level II #cleared #clearance Our teams are committed to developing and delivering innovative solutions addressing our customers most complex challenges, including cyber-resilient mission systems, within an Agile work environment. This position will be the Level II Systems Lead for HTS and act as a liaison between operations and multiple teams to include integration, dev, and fielding. This position will report t

Infoblox Engineer - TS/SCI

General Dynamics

Annapolis, Maryland, USA

Full-time

Type of Requisition: Pipeline Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Engineering Job Qualifications: Skills: Building Architecture, Systems Design, Systems Engineering, Virtualization Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: At GDIT, people are our differentiator. As a Infoblox Systems Engineer

Cyber Security Analyst / ISSO

Scientific Research Corporation

Reston, Virginia, USA

Full-time

Description The Cyber Security Analyst / ISSO will be a member of a small team focusing on developing services and applications in a DevSecOps based environment in support of DIA. Engineering will be performed on Joint Worldwide Intelligence Communications System (JWICS) and National Security Agency Network (NSANet) connected systems. As a Cyber Security Analyst/ Information Systems Security Officer (ISSO), this position is responsible for supporting the Information System Owner to complete sec