IT - Security Jobs in Herndon, VA

R-00188409Description Job Description The Digital Sector at Leidos currently has an opening for a Senior Information Security Engineer to support the Department of Veterans Affairs’ Office of I...

About Agile DefenseAt Agile Defense we know that action defines the outcome and new challenges require new solutions. That’s why we always look to the future and embrace change with an unmovable spiri...

UltraViolet Cyber is a leading platform-enabled unified security operations company providing a comprehensive suite of security operations solutions. Founded and operated by security practitioners wit...

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purp...

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the bou...

SUVI Global Services is seeking a Jr. Information Assurance Specialist to support mission-critical federal programs and highly visible contracts. This role supports the effort to ensure a secure comp...

As a Sr. Cybersecurity Engineer II, you'll design and develop technical architecture components enabling application teams to integrate with zero trust authentication and authorization services. You w...

Sr. Cybersecurity Engineer III Location: DC Metro Area (Hybrid – 1–2 days/week onsite) Work Sites: Washington, DC | Herndon, VA | Tysons, VA | Reston, VA Note: While candidates are encouraged to be o...

Title: Information Systems Security Engineer Location: Herndon, VA *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense, in partnership with our milita...

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Conduct penetration testing and ethical hacking to assess and exploit vulnerabil...

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Conduct penetration testing and ethical hacking to assess and exploit vulnerabil...

Job Number: R0244911Information System Security Controls AssessorThe Opportunity: Cyber threats are everywhere, and the constantly evolving nature of these threats can make understanding them seem ov...

*****MUST HAVE AN ACTIVE TS/SCI WITH CI POLY CLEARANCE******Software Engineer IIIPrincipal Cyber Software Engineer (Front End/UI-Focused)Experienced front-end software engineer to develop services usi...

The selected candidate will integrate a variety of software components in a secure container architecture working with cross functional teams to debug critical issues. Candidate will also support the ...

As a Sr. Cybersecurity Engineer II, you'll design and develop technical architecture components enabling application teams to integrate with zero trust authentication and authorization services. You w...

We are looking for an experienced penetration tester to conduct penetration testing and ethical hacking, to target, assess, and exploit risk and vulnerabilities of information systems. This position i...

Job Number: R0244563Information Systems Security Manager The Opportunity: Design, implement, and manage policies and procedures to ensure database and sof tware security. Apply advanced consult ing sk...

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what's happening now and shape what's coming next. Vantor is a place for problem solvers, ch...

The application window is expected to close on: 08/28/2026 Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received . The successful applic...

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the bou...