Corporate Gray Online
  • Jobs
  • Companies
  • Post a Job
  • Resume Search
  • Employer Products
  • Job Seeker Products
  • Resources
  • Corporate Gray
  • Absolutely American
  • Proud American E-zine
  • Military Minute Podcast
  • Sign in
  • Sign up
  • Jobs
  • Companies
  • Post a Job
  • Resume Search
  • Employer Products
  • Job Seeker Products
  • Resources
  • Corporate Gray
  • Absolutely American
  • Proud American E-zine
  • Military Minute Podcast

161 senior security engineer jobs found

Refine Search
Current Search
Security Clearance Onsite senior security engineer
Refine by Job Categories
Information Technology  (367) Engineering  (216) Electronics  (92) Management  (49) Manufacturing  (45) Law Enforcement  (19)
Energy  (16) Program Management  (14) Marketing  (10) Science  (9) Media  (7) Executive  (6) Finance  (6) Government  (5) Automotive  (4) Facilities  (3) Legal  (3) Cybersecurity  (3)
More
Refine by State
Colorado  (21) Arizona  (18) VA  (16) Virginia  (13) Massachusetts  (11) Florida  (8)
Maryland  (8) Alabama  (6) CA  (6) New Jersey  (6) Pennsylvania  (5) California  (4) CO  (3) DC  (3) Minnesota  (3) South Carolina  (3) Connecticut  (2) District of Columbia  (2) GA  (2) MD  (2)
More
Refine by City
Scottsdale  (18) Colorado Springs  (8) Littleton  (8) Manassas  (8) Huntsville  (6) Orlando  (5)
King of Prussia  (4) Moorestown  (4) Pittsfield  (4) Bloomington  (3) Taunton  (3) Aurora  (2) Boulder  (2) Dedham  (2) Fort Worth  (2) Greenville  (2) Groton  (2) Jacksonville  (2) Lemoore  (2) Mount Laurel Township  (2)
More
Refine by Company Name
General Dynamics Mission Systems, Inc  (57) Lockheed Martin  (55) SAIC  (30) LMI  (8) ECS  (8) Odyssey Systems Consulting Group  (2)
Southeastern Computer Consultants, Inc. (SCCI)  (1)
More
Refine by Employment Type
Full time  (2)
Refine by Country
United States  (118) 214  (38) UNAVAILABLE, UNAVAILABLE  (2) 61  (1) HI-Pearl Harbor, UNAVAILABLE  (1)
SAIC
Mar 18, 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....
EC
Mar 19, 2026
Senior Cyber Security Engineer
ECS MD
ECS is seeking a Senior Cyber Security Engineer to work at our Ft. Meade, MD customer site in a full-time, onsite capacity. ECS is seeking a Senior Cyber Security Engineer to support robust Impact Level (IL) 5 and IL6 programs in an operational DoD environment that houses multiple U.S. Coalition Mission Partner Environments (MPE). The Senior Cyber Security Engineer is a high-level technical authority responsible for designing, implementing, and defending infrastructure to protect MPE's networks, systems, and data. The Senior Cyber Security Engineer will deploy security tools (firewalls, IDS/IPS), conduct vulnerability assessments, automate threat detection, manage cloud/hybrid environments, lead incident response efforts to mitigate cyber threats, and ensure systems and tools comply with strict regulatory frameworks such as RMF and STIGs. This position is a demanding, high-energy role that requires innovative ideas to building, deploying, and managing robust security...
SAIC
Mar 18, 2026
Senior Crypto Security Engineer
SAIC CA
Description JOB DESCRIPTION: SAIC is seeking a motivated and experienced Cryptography Subject Matter Expert to join our team in El Segundo, CA. SAIC is sub-contractor on the Military Satellite Communications (MILSATCOM) Systems Engineering, Integration and Test (MSEIT) contract. The MSEIT effort provides leading-edge Systems Engineering & Integration (SE&I) for the United States Space Force's (USSF) Space Systems Command (SSC). We acquire state-of-the-art Military and Commercial Satellite Communications (SATCOM) systems, providing global, secure, survivable, and protected communications for our nation's warfighters. We seek technical individuals who will thrive in a highly collaborative work environment of small teams, using the most modern tools and methodologies to tackle the challenges of integrating complex space and ground communications systems. Key Responsibilities: Provide technical expertise in the development, integration, and delivery of both space and...
Lockheed Martin
Mar 14, 2026
Embedded Systems Security Engineer, Senior - Level 3
Lockheed Martin Orlando, FL, USA
Description: You will be a Cyber Systems Security EMBEDDED Engineer in the Program Protection Organization. Our organization oversees all aspects of Anti-Tamper and embedded Cybersecurity across Missiles and Fire Control. We are chartered with providing the skills and innovative technologies to develop, design, produce and sustain secure products across our Lines of Business. What You Will Be Doing As the Cyber Systems Security Engineer you will be responsible for providing embedded System Security Engineering design and implementation in all aspects of System Security Engineering (SSE) process in development of Department of Defense (DoD) Weapon Systems. Your responsibilities will include: • Assessing and mitigating System Security threats/risks throughout the embedded Weapon System development life cycle. • Validating System Security Engineering requirements decomposition, allocation and analysis for embedded Weapon Systems. • Implementing System Security Engineering...
Lockheed Martin
Mar 24, 2026
Cyber Systems Security Engineer - Level 4
Lockheed Martin Fort Worth, TX, USA
Description: At Lockheed Martin Aeronautics, we're taking innovation to the next level. From designing the most advanced air vehicle to designing aircraft that defies gravity, our engineers live on the cutting edge of technology. Never have the opportunities for a technical career been so limitless. The System Security Engineer candidate is responsible for ensuring that cyber security requirements are properly defined, decomposed, allocated, implemented, and assessed to produce a cyber-resilient security design solution for the target platform. This includes participating in working groups, design reviews, and formal artifact reviews alongside other Subject Matter Experts (SMEs) within the overall platform; and providing security expertise to ensure that cyber security is considered early in the product development lifecycle. Applicant is expected to conduct a range of cyber risk analysis and security assessment methods; implement patches and Security Technical Implementation...
Lockheed Martin
Mar 24, 2026
DevSecOps Engineer, Staff
Lockheed Martin King of Prussia, PA, USA
Description: WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. LM SPACE: WHAT WE'RE DOING 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. THE WORK Lockheed Martin is seeking a talented DevSecOps Engineer with a Final Top Secret security clearance to work from either our King of Prussia, PA or Littleton, CO location(s). This is an MID-SR CAREER (level 4) ROLE where candidates typically require 5+ years of professional...
General Dynamics Mission Systems, Inc
Mar 24, 2026
Integrated Product Team (IPT) Lead
General Dynamics Mission Systems, Inc Manassas, VA, USA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering 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.  Must have Integrated Product Team (IPT) and product development experience with hardware.   CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is required within a reasonable period of time. 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 Seeking a  Mid-to-Senior Level Engineer with 5+ years of technical experience  to become an Integrated Product Team (IPT) Lead dedicated to the development of...
General Dynamics Mission Systems, Inc
Mar 24, 2026
Systems Engineer – Entry Level
General Dynamics Mission Systems, Inc Manassas, VA, USA
Basic Qualifications Bachelor’s degree in Systems Engineering, or a related Science, Engineering or Mathematics field. Agile experience preferred.   CLEARANCE REQUIREMENTS: : Department of Defense Secret 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 performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Key Responsibilities: Support systems engineering activities for submarine combat system products, including requirements management and documentation Collaborate with multidisciplinary teams including hardware, software, and cyber-security engineers Assist with requirements traceability, design reviews, and technical communication to development teams Participate in agile team activities and help...
General Dynamics Mission Systems, Inc
Mar 24, 2026
CWL Deputy Chief Engineer (Sr Advanced Systems Engineer)
General Dynamics Mission Systems, Inc Manassas, VA, USA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 8+ years of job-related experience, or a Master's degree plus 6 years of job-related experience. Agile experience preferred.     CLEARANCE REQUIREMENTS: : Department of Defense Secret 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 performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Duties and Responsibilities Coordinates requirements development, hardware/software design, verification, and validation activities Manages technical deliverables and coordinates technical review boards to review decisions with broad program impact Ensures...
General Dynamics Mission Systems, Inc
Mar 24, 2026
Lead Engineer - NGC Core (Sr Principal Systems Engineer)
General Dynamics Mission Systems, Inc Orlando, FL, USA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 10+ years of job-related experience, or a Master's degree plus 8 years of job-related experience. Agile experience preferred.     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 performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES:   Required 10+ years of experience in software-intensive program leadership, with demonstrated ability to lead large, multi-discipline technical teams Proven track record of delivering complex software programs on schedule...
General Dynamics Mission Systems, Inc
Mar 24, 2026
Senior Digital Hardware Designer
General Dynamics Mission Systems, Inc Scottsdale, AZ, USA
Basic Qualifications Requires a Bachelor’s degree in Electrical Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 8+ years of job-related experience, or a Master's degree plus 6 years of job-related experience.   CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance is preferred at time of hire. Candidates must be able to obtain a TS/SCI clearance within a reasonable amount of time from date 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 ROLE AND POSITION OBJECTIVES: GDMS has an immediate opening for a Senior Digital Design Engineer. This position provides an opportunity to further advance the cutting-edge...
General Dynamics Mission Systems, Inc
Mar 24, 2026
Senior Digital Design Engineer
General Dynamics Mission Systems, Inc Scottsdale, AZ, USA
Basic Qualifications Requires a Bachelor’s degree in Electrical 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.   CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance is preferred at time of hire. Candidates must be able to obtain a TS/SCI clearance within a reasonable amount of time from date 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 ROLE AND POSITION OBJECTIVES: GDMS has an immediate opening for a Senior Digital Design Engineer. This position provides an opportunity to further advance the cutting-edge...
General Dynamics Mission Systems, Inc
Mar 24, 2026
Senior Systems RF Integration and Test Engineer
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 TS/SCI security clearance is preferred at time of hire. Candidates must be able to obtain a TS/SCI clearance within a reasonable amount of time from date 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 ROLE AND POSITION OBJECTIVES: As a Systems Integration and Test Engineer for the General Dynamics Space Avionics and Payloads team, you’ll be a key...
Lockheed Martin
Mar 21, 2026
F-35 Field Support Engineer, F-35 Program-NAS Lemoore, Level 4
Lockheed Martin Lemoore, CA, USA
Description: Join the Lockheed Martin Aeronautics company as an Aircraft Field Service Engineer (FSE) on our Aeronautics Field Sustainment (AFS) team! Our team is responsible for supporting the F-35 Program at our Naval Air Station (NAS) Lemoore, California location. What You Will Be Doing As a Nose to Tail (NTT) FSE, the preferred candidate will be a subject Matter Expert (SME) in Avionics/Mission Systems (MS), APG/Vehicle Systems (VS) or Supportable Low Observable (SLO)/Structures. While also being an emerging authority in the other two disciplines that they are not a SME in. The NTT FSE will possess the skill set to accomplish advanced troubleshooting and analysis of MS, VS, or SLO. The candidate will act as part of the Lockheed Martin Aeronautics Field Sustainment (AFS) technical interface to the on-site Customer (both Operations and Maintenance) in resolving issues arising from maintenance and modification activities for all matters dealing with the F-35 aircraft. NOTE:...
Lockheed Martin
Mar 21, 2026
F-35 Aircraft Field Service Engineer-NAS Lemoore, Level 2
Lockheed Martin Lemoore, CA, USA
Description: Join the Lockheed Martin Aeronautics company as an Aircraft Field Service Engineer (FSE) on our Aeronautics Field Sustainment (AFS) team! Our team is responsible for supporting the F-35 Program at our Naval Air Station (NAS) Lemoore, California location. What You Will Be Doing As a Nose to Tail (NTT) FSE, the preferred candidate will be a subject Matter Expert (SME) in Avionics/Mission Systems (MS). It is desired the individual also be an emerging authority in APG/Vehicle Systems (VS) or Supportable Low Observable (SLO)/Structures, with the skill set to accomplish troubleshooting and analysis of MS, VS, or SLO. The candidate will act as part of the Lockheed Martin Aeronautics Field Sustainment Team's technical interface to the on-site Customer (both Operations and Maintenance) in resolving issues arising from maintenance and modification activities for all matters dealing with the F-35 aircraft. Must be a United States citizen. Must be able to obtain F-35...
Lockheed Martin
Mar 20, 2026
Lead Electrical Power Engineer (Lead MBR Eng. Staff)
Lockheed Martin Moorestown, NJ, USA
Description: What We're Doing Lockheed Martin is shaping the future of defense through cutting edge radar and missile defense technologies, and we want you to help write the next chapter. As the premier developer of active electronically scanned array (AESA) radars and integrated air and missile defense solutions for the U.S. military, our allies, and more than 45 nations worldwide, we deliver world class situational awareness, early warning, and kill assessment capabilities in the most demanding environments. Join a global team of 35 000 engineers, software developers, and cyber experts who turn complex challenges into reliable, next generation systems that keep warfighters ahead of emerging threats. Your talent will power everything from space domain awareness to ground based radar testbeds, ensuring the safety of today’s forces and the security of tomorrow’s world. The Work Successful can will: The Level 4 Power Systems Engineer is a senior technical contributor...
Lockheed Martin
Mar 20, 2026
Space Protection Tactical Operator
Lockheed Martin Aurora, CO, USA
Description: WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. LM SPACE: WHAT WE'RE DOING 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. THE WORK Lockheed Martin is seeking a highly skilled Systems Engineer with an active TS/SCI w/ Poly clearance to join our team in Aurora, CO. This position will work within the Double Eagle program, which supports a proprietary customer with operational support to 24/7 Operations. This...
EC
Mar 19, 2026
Security Engineer
ECS VA
ECS is seeking a Security Engineer to work in our Fairfax, VA office in a hybrid onsite/remote capacity. ECS is seeking a seasoned Security Engineer to support robust Impact Level (IL) 5 and IL6 programs in an operational DoD environment that houses multiple U.S. Coalition Mission Partner Environments (MPE). The Security Engineer is a critical role responsible for implementing, optimizing, and maintaining an Azure Sentinel Security Information and Event Management (SIEM) solution; ensuring optimal log ingestion into the Enterprise SIEM; and providing expertise on all security-related functions within the environment. The Security Engineer reports to the Project Manager and acts as a senior member of a multidisciplinary organization that delivers excellence in AI/ML innovation in on-premises and cloud-native environments. The Security Engineer position is a demanding, high-energy role that requires a blend of leadership, strategic, and technical acumen to drive program...
EC
Mar 19, 2026
ICAM SME / Engineer
ECS MD
ECS is seeking an Identity Credential and Access Management (ICAM) Subject Matter Expert (SME)/Engineer to work in our Ft. Meade, MD office in an onsite capacity. ECS is seeking an ICAM SME/Engineer (ICAM SME/E) to support robust Impact Level (IL) 5 and IL6 programs in an operational DoD environment that houses multiple U.S. Coalition Mission Partner Environments (MPE). The ICAM SME/E will help clients understand emerging technical solutions relative to client policies and operational requirements and apply analytical and innovative strategies to develop solutions to address client needs. The candidate will contribute to technical artifacts and thought leadership for IAM tools relating to Credential Management, Public Key Infrastructure, Alternate Credentials, Directory Services, Authentication solutions, and ICAM integrations. This position is a demanding, high-energy role that requires innovative ideas to manage identities, credentials, and access across Mission...
EC
Mar 19, 2026
Senior Engineer III
ECS GA
ECS is seeking a Senior Engineer III (Part-Time) to work in our Warner Robins, GA office. ECS is seeking a highly qualified Senior Engineer III with an active Top Secret Clearance/SCI to work part time on our project at Robins Air Force Base, GA. The selected candidate will be able to communicate effectively (written/verbal), possess strong interpersonal skills, be self-motivated, and be innovative in a fast-paced environment. Must hold and maintain a valid Top Secret Security/SCI Clearance. The candidate will be involved with product sustainment, product development, lab support, and engineering services in support of the Operational Flight Program (OFP), Test Program Set (TPS) development and support, Intelligence, Surveillance and Reconnaissance software and Mission Support (MS) business lines within the Software Maintenance Group. Candidate will assist in evaluating current systems, planning of large-scale system projects. Essential Functions and Responsibilities:...
  • Home
  • Contact
  • About Us
  • Terms & Conditions
  • Employer
  • Post a Job
  • Search Resumes
  • Sign in
  • Job Seeker
  • Find Jobs
  • Create Resume
  • Sign in
  • Facebook
  • X
  • Instagram
  • LinkedIn
© 2008-2026 Corporate Gray, powered by Absolutely American, Inc.