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System Administrator Cyber Security

Washington,DC

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611 System Administrator Cyber Security jobs in Washington,DC

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

Leidos

Washington, DC 20037

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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25B Information Technology Specialist

U.S. Army

Washington, DC 20011

OnsiteUrgently HiringEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

  • 10 weeks of Basic Training
  • 20 weeks of Advanced Individual Training
  • U.S. Citizen
  • 17 to 34 Years Old
  • High School Diploma or GED
  • Meet Tattoo Guidelines
  • No Major Law Violations
  • No Medical Concerns
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New, Posted 1 day ago
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Systems Engineer– Microsoft 365 Security&Compliance / Endpoint Security Engineer (GCC)

Leidos

Washington Navy Yard, DC 20376

~ 4 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.
SmartExplore AI is experimental.
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HR & Office Administrator

Commercial Express Hvac Llc

Sterling, VA 20166

~ 35 min OnsiteHealth InsurancePaid Time OffRetirement Benefit

  • 4+ years of experience in HR, payroll, office administration, or related business operations.
  • Experience with HRIS and payroll systems.
  • Strong attention to detail and commitment to accuracy.
  • Experience with timesheet administration and HR compliance processes.
  • Knowledge of I-9, E-Verify, and background screening requirements.
  • Proficiency in Microsoft Office (Word, Excel, Outlook, PowerPoint).
  • Strong organizational, communication, and problem-solving skills.
  • Ability to manage sensitive and confidential information with professionalism and discretion.
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New, Posted 15 hours ago
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Zero Trust Information Systems Security Engineer

BOOZ, ALLEN & HAMILTON

Fort Belvoir, VA 22060

~ 27 min OnsiteEducation 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
  • Bachelor's degree
  • IASAE II Certification such as CASP+, CISSP, or CSSLP Certification
  • Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information ; TS/SCI clearance is required.
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Senior Linux Engineer

SimVentions, Inc - Glassdoor 4.6

La Plata, MD 20646

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Cyber Operations Capabilities Developer (TS/SCI with CI Poly)

Vantor

Annapolis Junction, MD 20701

$92,000-$195,000/yr
~ 32 min OnsiteHealth InsurancePaid Time OffRetirement Benefit

  • TS/SCI with CI Poly
  • Active TS/SCI clearance
  • Bachelors degree is technical discipline
  • Minimum of 5 years experience
  • Strong, recent experience with: C (systems-level programming)
  • Strong, recent experience with: Python (tooling, scripting, automation)
  • Proficiency with Git and modern development practices
  • Cross-compilation for diverse targets
  • Reverse engineering (e.g., GDB, IDA Pro, Ghidra)
  • Vulnerability research or exploit development
  • Development of modular implants or payload frameworks
  • Process injection or similar low-level techniques
  • Command and Control (C2) systems (e.g., Mythic, Cobalt Strike, Vermilion Strike)
  • Network stack programming (sockets, protocols, TCP/IP)
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25B Information Technology Specialist

U.S. Army

Baltimore, MD 21215

OnsiteUrgently HiringEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

  • 10 weeks of Basic Training
  • 20 weeks of Advanced Individual Training
  • U.S. Citizen
  • 17 to 34 Years Old
  • High School Diploma or GED
  • Meet Tattoo Guidelines
  • No Major Law Violations
  • No Medical Concerns
SmartExplore AI is experimental.
View now
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Information Systems Technician

U.S. Navy

Alexandria, VA 22304

New, Posted 9 hours ago
Life Safety & Security Officer

Planned Parenthood of Metropolitan Washington, DC

Washington, DC 20416

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