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8 infrastructure systems engineer jobs found

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SAIC
Mar 11, 2026
Information System Security Engineer
SAIC VA
Description SAIC is seeking an Information System Security Engineer (ISSE) to provide information security support. This position is in McLean, VA and requires an active TS/SCI clearance with Polygraph . This Customer's office is the force of choice for the development of global infrastructure and delivery of solutions that drive influence operations. If you have specialized skills in information security and tech ops, this is the role for you. Job responsibilities include, but are not limited to: Support the Lifecycle Assessment and Authorization (A&A) process. Develop a Systems Security Plan (SSP). Assist and maintain a formal Information Security Program that includes recommendations on continuous improvement of the processes and architectures. Maintain and make accessible documentation of all operational and business process activities in the form of Standard Operating Procedures (SOPs). Monitor and track projects in the A&A queue....
SAIC
Mar 11, 2026
Systems Security Engineer
SAIC MD
Description SAIC is seeking a highly motivated Systems Security Engineer. The successful candidate will provide support to the Cybersecurity Integrity Center in the Department of State Bureau of Diplomatic Technology (DT). Duties are in the Washington, D.C. metropolitan area (30% in downtown D.C; 70% in Beltsville, MD). Supports cybersecurity monitoring, threat analysis, incident response, and infrastructure remediation within and across all the State Department's information technology (IT) infrastructure. Coordinates and collaborates with other State Department bureaus as well as other organizations within the Federal Government, and commercial partners. Description of Duties: The Systems Security Engineer collaborates with Department and external cyber stakeholders on cybersecurity technologies with experience in Microsoft products and security systems, network topology and protocols, enterprise server & desktop operating systems, and applications, in support of over...
SAIC
Mar 11, 2026
Senior Security Engineer
SAIC DC
Description We are seeking a skilled Security Engineer with extensive experience in vulnerability remediation at the operating system (OS) level to join our IT team on-site in Washington, D.C. The ideal candidate will be responsible for ensuring the security and integrity of our cloud infrastructure by identifying, assessing, and mitigating vulnerabilities. This role requires a deep understanding of cloud services, operating system vulnerabilities, and best practices for securing cloud environments that are hosting a variety for MS Windows, and Linux (Red hat, Ubuntu, Amazon) operating systems. Key Responsibilities: Identify and remediate vulnerabilities in cloud infrastructure, with a specific focus on OS-level threats across multiple cloud platforms, including compliance with STIG and CIS benchmarks. Collaborate with the cybersecurity team to conduct regular security assessments, vulnerability scans, and penetration tests to identify potential weaknesses....
SAIC
Mar 11, 2026
Senior Firewall Engineer
SAIC VA
Description SAIC is seeking a Senior Firewall Engineer to support DCSA for an ONSITE position out of Quantico, VA. (All qualified candidates must possess a TS/SCI and a Sec+) Introduction Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities of the Defense Counterintelligence and Security Agency (DCSA). The Air Force and Combatant Commands Business Group of SAIC is seeking a Senior Firewall Engineer to support a transformational infrastructure program for DCSA. SAIC is proud to be supporting DCSA in safeguarding our nation's information. DCSA is the designated oversight authority on the accreditation of classified facilities, information systems, and the insider threat program. This involves security oversight of more than 10,000 companies and approximately 13,000 facilities involved in classified work throughout the DoD and 31 Federal agencies....
SAIC
Mar 11, 2026
Security Engineer
SAIC DC
Description We are seeking a skilled Security Engineer with extensive experience in vulnerability remediation at the operating system (OS) level to join our IT team on-site in Washington, D.C. The ideal candidate will be responsible for ensuring the security and integrity of our cloud infrastructure by identifying, assessing, and mitigating vulnerabilities. This role requires a deep understanding of cloud services, operating system vulnerabilities, and best practices for securing cloud environments that are hosting a variety for MS Windows, and Linux (Red hat, Ubuntu, Amazon) operating systems. Key Responsibilities: Identify and remediate vulnerabilities in cloud infrastructure, with a specific focus on OS-level threats across multiple cloud platforms, including compliance with STIG and CIS benchmarks. Collaborate with the cybersecurity team to conduct regular security assessments, vulnerability scans, and penetration tests to identify potential weaknesses....
General Dynamics Mission Systems, Inc
Feb 24, 2026
Space Force - Linux Administrator with AWS Skills
General Dynamics Mission Systems, Inc Scottsdale, AZ, USA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience. Agile experience preferred.     CLEARANCE REQUIREMENTS: : [Department of Defense Secret security clearance is preferred 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 performed within our facilities, U.S. citizenship is required. Responsibilities for this Position   The Linux Administrator provides infrastructure support for ServiceNow MID servers, application nodes, RDS instances, and supporting systems within a self-hosted network enclave. This role combines Linux system administration with cloud infrastructure expertise to...
Lockheed Martin
Jan 28, 2026
Information System Security Manager (TS/SCI & Expat to Guam Required)
Lockheed Martin King of Prussia, PA, USA
Description: *** PLEASE NOTE THIS POSITION REQUIRES THE CANDIDATE TO EXPATRIATE FULL TIME TO GUAM FOR 6-12 MONTHS WITH POSSIBILITY OF EXTENSION*** IN ADDITION, THE SELECTED CANDIDATE WILL BE REQUIRED TO ATTEND TRAINING IN KING OF PRUSSIA, PA UPON ONBOARDING. Who We Are: Lockheed Martin is a pioneer in cyber security—partnering, innovating, and building cutting edge solutions. Our talented employees tackle the world’s toughest engineering challenges every day, leveraging their unique skills and experiences to design and deliver breakthrough technology. We empower our people to think big, perform with excellence, and create extraordinary products. If you have the passion and courage to dream boldly, join our culture and help build a better tomorrow. We provide the resources, inspiration, and focus you need to succeed. The Work: Lockheed Martin’s Rotary & Mission Systems (RMS) division is seeking an experienced Information System Security Manager (ISSM) to protect mission...
Lockheed Martin
Jan 28, 2026
Information System Security Officer (TS/SCI & Expat to Guam Required)
Lockheed Martin King of Prussia, PA, USA
Description: *** PLEASE NOTE THIS POSITION REQUIRES THE CANDIDATE TO EXPATRIATE FULL TIME TO GUAM FOR 6-12 MONTHS WITH POSSIBILITY OF EXTENSION*** IN ADDITION, THE SELECTED CANDIDATE WILL BE REQUIRED TO ATTEND TRAINING IN KING OF PRUSSIA, PA UPON ONBOARDING. Who We Are: Lockheed Martin is a pioneer in cyber security—partnering, innovating, and building cutting edge solutions. Our talented employees tackle the world’s toughest engineering challenges every day, leveraging their unique skills and experiences to design and deliver breakthrough technology. We empower our people to think big, perform with excellence, and create extraordinary products. If you have the passion and courage to dream boldly, join our culture and help build a better tomorrow. We provide the resources, inspiration, and focus you need to succeed. The Work: Lockheed Martin’s Rotary & Mission Systems (RMS) division is seeking an experienced Information System Security Officer (ISSO) to protect mission...
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