541 - 560 of 658 Jobs

Systems, Cyber Infrastructure Systems Engineer Public Trust - Palm Bay, FL

Harris Corporation

Palm Bay, Florida, 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

Systems Administrator

Aerospace Corporation

Chantilly, 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,

Mid/Senior Cyber Systems & Acquisition Analyst

SimVentions, Inc

Remote or Washington, USA

Full-time

Overview SimVentions is seeking a Cyber Systems Analyst/Engineer to support the SPEIR and LEED programs within PEO IWS 2.0 Above Water Sensors. This role provides direct support to APMs, Lead System Engineers, and Task Leads. A hybrid work environment is available, but on-site work in the DC area is required 2-3 times per week, with occasional travel (up to 10%). Travel Travel to Washington D.C. area 2-3 times per week and additional travel up to 10% of the time (1-2 times/month). Clearance

Sr. Staff Network Architect

Lockheed Martin Corporation

Littleton, Colorado, USA

Full-time

Job Description The Network Design Engineer is responsible for designing, installing, configuring, securing, hardening, troubleshooting, testing, and upgrading network infrastructure, including switches, routers, firewalls, IDS/IPS, encryptors, physical cabling, protected distribution systems (PDS), and software-defined networking (SDN). This role supports mergers and acquisitions (M&A) integration, ensuring seamless onboarding into the enterprise network while maintaining security and performa

Classified Virtualization Systems Administrator

Johns Hopkins University AppliedPhysicsLaboratory

Laurel, Maryland, USA

Full-time

Description Do you thrive in and love a fast-paced, dynamic classified environment? Do you want to be empowered to take ownership and stake in the overall engineering and operations of the IT infrastructure? Are you interested in learning new technologies and creating new IT capabilities? If so, we're looking for someone like you to apply and join our team at APL! We are ranked as one of Computerworld 's Top Places to Work in IT for 6 years running, and we are seeking a Virtualization Systems

Network Engineer

Booz Allen Hamilton

Chantilly, Virginia, USA

Full-time

Job Number: R0215900 Network Engineer The Opportunity: A well-designed network is critical to move data and enable organizations to achieve their missions, but how can an organization make sure their network will fit their current and evolving needs? Crafting the right network with the right equipment and sof tware requires a combination of te chn ical skill and careful planning. That's why we need you, an experienced network engineer who knows how to develop the exact network Booz Allen needs.

Systems Administrator Senior

General Dynamics

Hayward, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Information Technology (IT) Systems, System Administration, VMware Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Please take this opportunity to join one of GDIT's fastest long-standing growing program

Security Engineer

Leidos

Bethesda, Maryland, USA

Full-time

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 development an

Sr Principal Systems Engineer - LINUX - Active Top Secret Required

General Dynamics Information Technology

Washington, District of Columbia, USA

Full-time

Type of Requisition: Regular 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 Engineering Job Qualifications: Skills: Complex Systems, Microsoft Windows Server, Systems Engineering, Systems Management Certifications: CompTIA - Security+ CE - CompTIA Experience: 15 + years of related experience ship Required: Yes Job Description: Senior Principal Systems Engineer - Linux Design,

Cloud Architect | Active Secret clearance

General Dynamics

Falls Church, 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: Solutions Architect Job Qualifications: Skills: Cloud Platform, Cloud Solutions, DevSecOps, Public Clouds Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: Own the opportunity as a Cloud Architect and help ensure the mission is never interrupted. At GDIT, we deliver clar

HITS-U III Information Systems Security Officer (ISSO) Lead Army Research Lab (ARL)

General Dynamics

Aberdeen, Maryland, 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: Information Security Job Qualifications: Skills: Information Security, Information System Security, System Security Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: The ARL DSRC ISSO Lead will be the primary point-of-contract for the Army Research Laboratory

HITS-U III Information Systems Security Officer (ISSO) Lead U.S. Army Engineer Research and Development Center (ERDC)

General Dynamics

Vicksburg, Mississippi, 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: Information Security Job Qualifications: Skills: Information Security, Information System Security, System Security Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: The ERDC DSRC ISSO Lead will be the primary point-of-contract for the U.S. Army Engineer Rese

Linux Systems Administrator, Sr / Onsite: Huntsville, AL

Lockheed Martin Corporation

Huntsville, Alabama, USA

Full-time

Job Description Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 employees work with our partners around the world to bring the latest technology to our customers' toughest challenges. Headquartered in Bethesda, Maryland, US, Lockheed Martin has employees based in all 50 states and more than 570 facilities that span 70 countries. Lockheed Martin Enterprise Operations (EO) is actively see

Principal Systems Administrator

SAIC

Colorado Springs, Colorado, USA

Full-time

Job ID: 2504319 Location: COLORADO SPRINGS, CO, US Date Posted: 2025-06-24 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: TS/SCI Clearance Level Must Be Able to Obtain: TS/SCI with Poly Potential for Remote Work: No Description SAIC's Horizon 2 contract is seeking an energized and professional Principal Systems Administrator to support the contract's secure operating faciliti

Information Systems Security Officer - Wilmington

Textron, Inc.

Wilmington, Massachusetts, USA

Full-time

Job Summary: Provide information systems security support from a managerial and technical standpoint for DoD and Non-DoD classified systems and networks. Standing up and maintaining accreditations for classified systems and networks. Classified Systems & Networks range in complexity and size to include multi-platform computing (Linux, Windows, Solaris, VMWare), virtual environments, and mobile systems. Extensive experience with eMASS, NISPOM Chapter 8, DCSA DAAPM, DISA STIGs. Assemble and mainta

Systems Administrator

General Dynamics

San Jose, California, USA

Full-time

Basic Qualifications Bachelor's degree in a specialized area; or equivalent is required plus a minimum of 8 years of relevant experience; or Master's degree plus a minimum of 6 years of relevant experience. CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work perform

Information Security Systems Engineer

Harris Corporation

Colorado Springs, Colorado, 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

Information Systems Security Officer Senior (ISSO)

York Space Systems

Greenwood Village, Colorado, USA

Full-time

Salary: $120,000-$135,000 York Space Systems was founded to radically improve spacecraft affordability and reliability, transforming, and enabling next generation space mission operations worldwide. Today, it is one of the most innovative aerospace companies, specializing in both end-to-end customer solutions and the rapid production of spacecraft platforms. York's complete Space Segment Solution including spacecraft production, payload integration, system integration & test, launch services, g

Sr Principal Systems Engineer - LINUX - Active Top Secret Required

General Dynamics

Washington, District of Columbia, USA

Full-time

Type of Requisition: Regular 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 Engineering Job Qualifications: Skills: Complex Systems, Microsoft Windows Server, Systems Engineering, Systems Management Certifications: CompTIA - Security+ CE - CompTIA Experience: 15 + years of related experience ship Required: Yes Job Description: Senior Principal Systems Engineer - Linux Design,

HITS-U III Information Systems Security Officer (ISSO) Lead Air Force Research Lab (AFRL)

General Dynamics

Dayton, Ohio, 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: Information Security Job Qualifications: Skills: Information Security, Information System Security, System Security Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: The AFRL DSRC ISSO Lead will be the primary point-of-contract for the Air Force Research Labo