2461 Security Engineer jobs in Washington,DC

Software Development Engr III, Minimal Access Security Team (MAST)

Amazon.com Services LLC

Herndon, VA 20171

~ 34 min OnsiteUrgently HiringHealth InsurancePaid Time OffRetirement Benefit

5+ years of non-internship professional software development experience
5+ years of programming with at least one software programming language experience
5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
Experience as a mentor, tech lead or leading an engineering team
Bachelor's degree in computer science, engineering, analytics, mathematics, statistics, IT or equivalent, or 3+ years of distributed systems experience

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Systems Engineer– Microsoft 365 Security&Compliance / Endpoint Security Engineer (GCC)

Leidos

Bowie, MD 20721

~ 27 min OnsitePaid Time OffRetirement Benefit

Expert-level Intune engineering across Windows/macOS/iOS/iPadOS.
Advanced PowerShell for remediation, automation, and OS image manipulation.
Deep experience with Microsoft Defender (XDR, Endpoint, Cloud Apps).
Hands-on with Sentinel SIEM, Function Apps, and cross-platform telemetry pipelines.
Strong understanding of CAP architecture and identity risk enforcement.
Experience with ATO control evidence, compliance mapping, and audit support.

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Zero Trust Information Systems Security Engineer

BOOZ, ALLEN & HAMILTON

Fort Belvoir, VA 22060

RemoteEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

6+ years of experience in an ISSE, ISSO, or IT role
Experience with ICAM principles and technologies, including multi-factor authentication, privileged access management, security operations, and security architecture leveraging ICAM solutions such as SailPoint, Radiant Logic, Ping Federate, Delinea, and Okta
Experience with administration and integration of directory services, including LDAP compliant directories such as Active Directory
Experience with SAML, OAuth 2.0, and OpenID Connect ( OIDC ) integrations and troubleshooting protocol exchanges
Experience with DoD architecture, strategic planning, concept of operations, performance attributes, system architecture and design, evolving met hodologies, and statutory and regulatory requirements
Knowledge of Zero T rus t principles and frameworks such as NIST 800-207
Ability to resolve complex identity and federation issues
TS/SCI clearance
Bachelor's degree
IASAE II Certification such as CASP+, CISSP, or CSSLP Certification

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AWS Cloud Security Engineer - Cleared

RightDirection Technology Solutions

Washington, DC 20011

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2026 PhD Graduate - Autonomous Systems Design Engineer: Controls, Navigation, Sensors, and Simulation

Johns Hopkins Hospital

Laurel, MD 20707

$105,000/yr

~ 29 min OnsiteEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

Are pursuing a PhD in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Software Engineering Systems Engineering, Physics, Mathematics, or Computer Science.
Proven internship experience or possess extensive classroom project work in a subject matter in any of the following areas: guidance, inertial navigation, modern/adaptive control, classical control, optimization; electromagnetic wave propagation, RF antennas, optics, signal and image processing, radar, programming/coding; dynamics, programming/coding, algorithms, optimization; hardware testing, embedded systems, sensor testing artificial intelligence and software development.
Are skilled in or have knowledge of coding practices in Matlab/Simulink, C++, Python, or other languages
Have a curiosity and appetite for exploring and solving hard problems.
Are able to obtain an Interim Secret security clearance by your start date and can ultimately obtain a Secret level clearance. If selected, you will be subject to a government security clearance investigation and must meet the requirements for access to classified information. Eligibility requirements include U.S. citizenship.
Have a minimum 3.0 GPA on a 4.0 scale. Note: When prompted to upload attachments, please include a copy of your college transcripts (unofficial transcripts are acceptable).

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Senior Security Engineer (Government)

At&t

Chantilly, VA 20151

$98,100-$220,000/yr

~ 37 min OnsiteEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

Bachelor's degree and minimum 5 years of relevant experience in Security operations of systems supporting: Virtualization, Windows and Linux Computing solution engineering and architecture solutions
Experience with on-premise, cloud and hybrid-cloud based deployments.
US citizenship is required.
Active federal security clearance.
Top Secret/SCI with polygraph.
Required Clearance: Top Secret/SCI with polygraph. (#ts/sci) (#polygraph)
Strong written and verbal communication skills.
Demonstrated leader with team-oriented interpersonal skills; ability to effectively interface with a broad range of people and roles.

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Systems Engineer Senior I

Ultra Electronics Ocean Systems

Chantilly, VA 20151

~ 37 min OnsiteHealth InsurancePaid Time OffRetirement Benefit

Strong attention to detail and work ethic.
Knowledge of proper systems engineering discipline and rigor required for disciplined systems development.
Significant experience with Radar systems or similar signal processing systems.
Experience and knowledge of algorithms used for navigation, periscope detection, discrimination or other parts of traditional Radar signal processing.
Laboratory knowledge including setup and use of Linux-based system integration, test, and execution.
Experience planning, reviewing, and executing integration and test events for combined hardware and software systems
Ability to document and specify system and subsystem level requirements.
Experience working with a team to jointly develop a system during all phases of the development lifecycle.
Review/provide technical input and cost estimation support.
Provide systems engineering leadership to a small group of systems or mixed discipline engineers.
Willingness to travel (10%).
Candidates must be eligible to obtain the relevant security clearance required for the role, due to the nature of the programmes we deliver for our customers.
6+ years with BS Degree in Systems/EE Engineering or related discipline

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(DoD SkillBridge), Specialist, Integration & Test Engineer

L3Harris Technologies

Herndon, VA 20192

~ 34 min OnsiteBilingual Preferred

BS/BA (or equivalent) in Optical, Electrical, Computer Engineering, Computer Science, Information Technology or related field, and minimum 6 years Software or systems experience or Graduate's degree and 4 years software or systems experience
In lieu of a degree, minimum of 10 years of prior military or related experience
TS/SCI W/ Poly Clearance is required
Long periods of travel is required

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Senior Navy Mechanical Engineer - Clearance Required

Cydecor

Arlington, VA 22204

~ 12 min OnsiteEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

Bachelor's level degree in Mechanical Engineering
10+ years of relevant experience
Interim or Active Secret clearance

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Senior Information Systems Security Engineer

GovCIO LLC

Alexandria, VA 22315

$165,000/yr

Hybrid~ 23 min

High School with 9+ years (or commensurate experience)
DoD 8570 IAT Level II or higher (e.g., Security+ CE, CySA+, etc)
Experience focused on cyber-risk reduction, vulnerability mitigation, and maintaining compliance frameworks.
Demonstrated technical experience performing continuous scanning, risk analysis, and endpoint patching workflows.
Working knowledge of risk reduction governance, baseline compliance frameworks, and security automation principles.
Ability to collaborate effectively with engineers to translate technical system configurations into risk reduction strategies.
Clearance Level: Must have an active Secret clearance

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