Senior Cyber Defense Engineer, TS/SCI (DoD)
Jobleads-US
Leidos is seeking a Cyber Defense Infrastructure Support Engineer in Suitland, MD to build, configure, integrate, and maintain security systems protecting TS/SCI networks. You will lead engineering and administration of cybersecurity capabilities, provide Tier 3 escalation support, and evaluate emerging technologies across the enterprise.
You will implement, harden, and manage tools, collaborate across teams, and develop documentation and training to sustain secure operations.
#J-18808-Ljbffr Jobleads-US- ...Leidos is seeking a Cyber Defense Infrastructure Support Engineer to join the ONI Hopper Global Communications Center in Suitland, MD. You... ...integrate, and maintain security systems to protect TS/SCI networks, serving as a senior technical resource with Tier 3 escalation...Senior
$110k - $160k
...-Time Clearance Requirement: TS/SCI Clearance Required Position Overview... ...web application, and social engineering assessments. Use a... ...insights, novel attack chains, and defensive gaps discovered during... ...Handler (GCIH)GIAC Industrial Cyber Security Professional (GICSP)...SeniorFull timeWork at office- ...environments. The role focuses on secure design in multi-cloud contexts, governance, and modernization initiatives for DoD-aligned systems. Active TS/SCI considerations apply, with preferred certifications strongly valued. The candidate will drive integration of...Senior
$146k - $234k
...Information Systems Security Engineer - Vulnerability Remediation Team... ...support its Federal Strategic Cyber programs.Location: Washington,... ...and products.Must meet DoD 8140.03 Advanced proficiency aligned... ...- Software EngineeringActive TS/SCI security clearance is required...SeniorContract workFor contractorsShift work- General Dynamics Information Technology, Inc. seeks a Cyber All-Source Intelligence Analyst to provide on-site analytic support, collecting... ...national decision makers and Combatant Commands; requires TS/SCI with active poly, US citizenship, and 17+ years of related experience...Senior
- ...ValidaTek is seeking a Senior Network Engineer to support a DoD network architecture within a secured environment. The role covers design and architecture... ...with industry practices and technologies. An active TS/SCI clearance is required. #J-18808-Ljbffr Jobleads-USSenior
- ...Varen, an SAIC company, seeks an experienced Systems Administrator to join the IT O&M team in Suitland, MD. The role requires TS/SCI with polygraph and involves installing, configuring, securing, and maintaining server-based systems across major vendors. Responsibilities...Senior
- ...intelligence on foreign military and civilian cyber actors, their supporting infrastructure,... ...the customers’ ability to enable both defensive and offensive cyberspace operations.... ...17 years’ experience. Clearance : TS/SCI with active poly At GDIT, the mission...SeniorRemote work
- ...Federal Solutions is seeking a DevSecOps Engineer to integrate security into the full software... ...secure infrastructure in support of DoD and IC-related systems. The ideal candidate... ...in DevSecOps or cybersecurity, holds TS/SCI with CI Poly, and has experience with Terraform...Senior
- ...Leidos is seeking a Virtualization Engineer for the GSM-O II contract in Arlington, VA. The candidate will bring 10+ years of hands-on... ...virtualization, focusing on VMware ESXi, vSphere, and vSAN. A TS/SCI clearance is required, with CI/Poly readiness. This role is...SeniorContract work
- ...Leidos is seeking a hands-on Information Assurance Security Engineer (IASE) / ISSE to support a complex enterprise in Suitland... ..., with a focus on security engineering and testing in a DoD IC context. Active TS/SCI clearance preferred. #J-18808-Ljbffr Jobleads-US
- ...Task Order in Alexandria, VA. The role oversees cost, schedule, quality, and risk, interfacing with senior leaders, the COR, and contracting officer. An active TS/SCI eligibility security clearance is required and the role is onsite at the Mark Center in the Alexandria...SeniorContract work
- ...seeks a Technical Project Manager IV in Alexandria, VA to lead complex IT and communication projects within a DoD/IC environment. The role requires an active TS/SCI clearance with CI polygraph eligibility, a PMP credential, and 8+ years of relevant experience. You will...Senior
- ...Technologies is seeking a Key Personnel Senior Cyber Operations Planner to support cyberspace... ...planning and integration for a sensitive DoD/IC program. You will provide planning, synchronization... ..., MD, this on-site role requires a TS/SCI clearance and a strong #J-18808-Ljbffr...Senior
- Advanced Decision Vectors, LLC (ADV) seeks a Senior Policy Analyst - Program Support to advise... ...developments and coordinate with DoD, interagency partners, and intelligence communities... ...This on-site Washington, DC role requires TS/SCI clearance and a strong track record in...Senior
$107.9k - $195.05k
...Cyber Defense Infrastructure Support Engineer Location: Suitland, MD Clearance: Active TS/SCI Join a mission focused team supporting the Navy's cybersecurity... .... You will serve as a senior technical resource,... ...activities to meet applicable DoD security requirements and benchmarks...Local area- Dover Networks LLC in Maryland seeks an experienced SA to support IT systems under DoD programs. Applicants must already hold TS/SCI with a Full Scope Polygraph; no sponsorship available. The role covers implementation, troubleshooting and maintenance of IT infrastructure...Senior
$128.04k - $173.23k
...Currently Possess: Top Secret SCI + Polygraph Clearance Level Must... ...Skills: Analytical Thinking, Cyber Operations, National Security... ...customers’ ability to enable both defensive and offensive cyberspace... ...years’ experience. Clearance TS/SCI with active poly At GDIT,...SeniorTemporary workImmediate startRemote workWorldwideFlexible hours$148.8k - $306.5k
...Federal Services in Arlington, Virginia, is seeking a Systems Engineer to support their Client platform. Responsibilities include translating... ...of experience in systems engineering, along with an active TS/SCI security clearance. Competitive compensation range is $148,800...SeniorLocal area- ...and maintain telecom and cabling systems. You may travel up to 50% and must hold TS/SCI clearance with CI polygraph eligibility. Duties include VOIP, fiber, and TV/data network work, with DoD/IC atmosphere experience preferred. Responsibilities cover installation,...Senior
- ...Leidos is seeking an experienced Network Security Tools Engineer to join our cybersecurity team in Suitland, MD. You will administer,... ...across a mission critical environment. The role requires active TS/SCI clearance, 8+ years of relevant experience or a Master’s with 6...
- ...DATA ENGINEER SENIOR PRINCIPAL Program Overview GDIT delivers critical... ...military and civilian cyber actors, their supporting infrastructure... ...' ability to enable both defensive and offensive cyberspace... .... Clearance TS/SCI with active poly GDIT IS...Senior
$170k - $210k
...b(a)(3). Please review the job details below. This position requires an active U.S. Government Security Clearance at the TS/SCI level with CI Polygraph. Vantor has an exciting opportunity for a Backend Developer within our Intel sector advancing the national...Senior- ...Leidos is seeking a Software Engineer to test and strengthen front-end interfaces in a fast-paced, mission-focused environment. You will... ...a BS in CS or related field, 4 years of SWE experience or equivalent, and a TS/JS/HTML/CSS skillset. #J-18808-Ljbffr Jobleads-USSenior
- ...strategic planning, and systems engineering to the Federal and Commercial... ...in the Department of Defense and support agencies. At ADV,... ...Supporting U.S. and partner nations, DoD deploys specialized assets... ...Friday. Required Clearance Active TS/SCI Senior Legislative and Strategy...SeniorTemporary workFor contractorsWork at officeRemote workMonday to FridayFlexible hours
- ...strategic planning, and systems engineering to the Federal and Commercial... ...in the Department of Defense and support agencies. At ADV,... ...Supporting U.S. and partner nations, DoD deploys specialized assets... .... Required Clearance: Active TS/SCI Senior Policy Analyst – Program Support...SeniorTemporary workFor contractorsWork at officeRemote workMonday to FridayFlexible hours
- ...strategic planning, and systems engineering to the Federal and Commercial... ...in the Department of Defense and support agencies. At ADV,... ...Supporting U.S. and partner nations, DoD deploys specialized assets... ...Friday. Required Clearance Active TS/SCI Senior Budget Strategy Specialist –...SeniorTemporary workFor contractorsWork at officeImmediate startRemote workMonday to FridayFlexible hours
$120k - $145k
...Technologies is seeking a Key Personnel Senior Intelligence Analyst to... ...for a sensitive Department of Defense or Intelligence Community... ...source analysis. Coordinate with DoD and IC stakeholders to... ...This position requires an active TS/SCI clearance. Applicants must meet...SeniorContract workWork experience placementWork at officeLocal area$145k - $170k
...seeking a Key Personnel Senior Risk Mitigation... ...sensitive Department of Defense or Intelligence Community... ...planning. Coordinate with DoD and IC stakeholders to... ..., intelligence, or cyber. Experience within the... ...position requires an active TS/SCI clearance. Applicants...SeniorContract workWork experience placementWork at officeLocal area$164.38k - $207k
...Possess: Top Secret SCI + Polygraph... ...: None Job Family: Cyber and IT Risk Management... ...Cybersecurity Systems Engineer/Information Systems... ...Value Asset (HVA), TS (SCI), Secret, etc.... ...Certifications: DoD Manual 8570.01-M at... ...the U.S. government, defense and intelligence community...Temporary workFor contractorsInterim roleImmediate startRemote workWorldwideFlexible hours
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