11,379 Results for

Senior Security Jobs in Gaithersburg, MD

Jobs

Sr. Security Researcher (Remote) CrowdStrike Inc

Remote

$85,000–$120,000 / year

That said, we are also open to applications by experienced and talented malware analysts or reverse engineers without significant knowledge in this field who are willing to rapidly expand their skills to meet the following requirements: What You'll Do: Technical Analysis: Implement tracking systems that inform cross-team adversary tracking efforts based on observed exploitation behavior. This highly technical position serves an important role in conducting analysis, increasing our coverage of the global threat landscape, contributing to the continuous tracking of criminal and state-sponsored adversary groups, and ultimately developing finished intelligence products.

30+ days ago

Senior Executive Recruiter Anduril Industries Inc

Washington, DC

$166,000–$220,000 / year

You will partner directly with Anduril''s leadership team to run full-cycle searches, build a proprietary network of senior cleared defense talent, and represent Anduril credibly to candidates at the general officer, senior acquisition, and executive industry levels. Growth is one of the highest-leverage functions we recruit for, given its role in identifying, shaping, and capturing multi-year, multi-billion-dollar Programs of Record across DoD, the Intelligence Community, and allied services.

30+ days ago

Senior Cyber Security Engineer ManTech

Chantilly, VA

In this role, you will support mission-critical cybersecurity operations by designing, deploying, and maintaining secure, resilient data collection and monitoring solutions that enable informed decision-making across the enterprise. + Occasionally moves about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers via email, phone, or virtual communication, which may involve delivering presentations.

30+ days ago

Personnel Security Analyst / Adjudicator – Senior w/ TS/SCI with FSP VMD Corp

McLean, VA

Personnel Security Analyst / Adjudicator – Senior The Senior Security Analyst is a subject matter expert who independently applies ICD 704 and EO 12968 to the most complex cases involving significant derogatory information. Minimum Requirement: Education/Experience: Bachelor’s degree (in a related study) + 5 years of relevant experience OR High School Diploma/GED + 7 years of relevant experience.

4 days ago

Security Officer Unarmed Patrol Security Clearance Allied Universal

Chantilly, VA

As an Unarmed Security Officer supporting a dynamic technology, media, and telecommunications location, you will monitor and patrol assigned areas, maintain a visible presence to help deter incidents, and respond to security-related concerns. What You'll Do: Provide customer service to employees, visitors, contractors, and/or vendors at a technology, media, and telecommunications location by carrying out security-related procedures, site-specific policies, and emergency response activities when appropriate.

2 days ago

Senior Security Program Protection Specialist (TS/SCI Cleared) Assured Consulting Solutions

Springfield, VA

The Research and Technology Protection (RTP) team develops and provides subject matter expertise in providing day-to-day security classification guidance and assessments of classified and controlled unclassified information GEOINT campaigns and program tools development within the NGA Research Offices and Divisions. Apply Business Intelligence (BI) and social network analysis to illuminate threats, vulnerabilities, and opportunities for exploitation within traditional and nontraditional supply chains, networks of individuals, financial and non-financial business activities, technology trends, academic partnerships and research collaborations.

7 days ago

Senior Research Scientist Cyber Network Security Peraton Inc

College Park, MD

$176,000–$282,000 / year

Within this role you will work in a dynamic R&D environment, collaborate directly with government leadership and technical stakeholders, and help shape next-generation research efforts in cyber network defense, secure networking, experimentation platforms, and emerging network technologies. Minimum of 12+ years of experience with a Bachelor's degree, 10+ years of experience with a Master's degree, or 8+ years of experience with a PhD in Computer Science, Computer Engineering, Electrical Engineering, Cybersecurity, or a related technical field.

29 days ago

Senior Director, Business Development - National Security (TS/SCI Clearance) Rocket Lab USA

Chantilly, VA

$213,000–$320,000 / year

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), Rocket Lab Employees must be a U.S. citizen, lawful U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce, as applicable. Rocket Lab’s Business Development team is responsible for connecting customers across government and commercial sectors with our industry leading mission solutions spanning launch and space systems.

30 days ago

Senior Engineer Alpha Omega Integration

Washington, District of Columbia

$140,000–$200,000 / year

Bachelor of Art/Bachelor of Science degree plus ten (10) years of relevant experience OR Master of Art/Master of Science degree plus five (5) years of relevant experience OR an expert-level technical certification (e.g., Microsoft Power Platform Solution Architect Expert) plus eight (8) years of relevant experience in lieu of a degree. In this role you will serve as the lead technical authority for all Power Platform development (Power Apps, Power Automate, Power BI, and Copilot Studio) supporting the U.S. Coast Guard Accessions Service Center, and as the main subject matter expert for enterprise architecture design, governance, quality, and protection issues.

30+ days ago

Sr. Security Engineer - GRC Fintech & Financial Services Twitter

Washington, DC

$152,000–$258,000 / year

The ideal candidate brings hands-on fintech compliance experience (PCI DSS, NYDFS, FFIEC), fluency in data privacy frameworks (GDPR, CCPA), and GRC engineering skills: Compliance-as-Code, continuous evidence collection, and deep partnership with engineering so controls are designed into the platform rather than bolted on after the fact. Design, implement, and validate technical controls relevant to fintech environments (cardholder data environment scoping and segmentation, access control, logging, encryption, change management, vulnerability management) - not just document them.

9 days ago

Senior Application Security Engineer MBL TECHNOLOGIES, INC.

Washington, DC

3+ years of experience using the design and implementation of enterprise-wide security controls to secure applications, systems, network, or infrastructure services. 3+ years of experience with supporting Static Application Security Testing (SAST), Dynamic Application Security Testing (DAST), and IDE Plug-in environments using Burp Suite.

30+ days ago

Sr. Director, National Security Operations (5626) MetroStar Systems

Reston, VA

$184,000–$270,000 / year

This role requires a strategic thinker with a proven track record of leading large teams, driving operational excellence, and implementing scalable processes that support growth. Cross-Functional Collaboration: Collaborate with leaders across MetroStar to support initiatives aligned to MetroStar's strategy map including support for organic and new business growth opportunities.

30+ days ago

Senior Cloud Security Architect PlanIT Group

Reston, VA

Remote

Quick Apply

AI-Native Security Strategy: Architect specialized security frameworks for AI/ML pipelines, focusing on data privacy for training sets, model integrity, and securing LLM-integrated applications against emerging attack vectors. • Threat Modeling & Resilience: Conduct deep-dive threat modeling for complex cloud-native systems, simulating advanced persistent threats (APTs) and "blast radius" scenarios to strengthen system resilience.

30+ days ago

Sr Cloud Security Engineer PlanIT Group

Falls Church, VA

Quick Apply

Experience: 8+ years in a technical Cybersecurity Engineering role, with at least 4 years focused on large-scale cloud or hybrid environments, and a portfolio of projects where AI or Machine Learning was directly applied to solve security or operational scaling problems. • API-First Automation: Deep expertise in building "glue code" that connects disparate COTS and custom applications via secure, automated APIs to streamline cross-functional business activities.

30+ days ago

Senior Analyst, Proposal And Capture (Maritime) ANDURIL INDUSTRIES

Washington, DC

You will learn to craft compelling material to inform our customers' market research and acquisition strategies, write technical narratives on cutting edge capabilities, build and implement pricing strategies, and collaborate with internal and external stakeholders to close deals. You will support the development and delivery of major proposals, partnering with stakeholders across Anduril's business lines and functional teams, including growth/business development, legal, finance, engineering, program management and executive teams to win new business.

7 days ago

Sr. Solutions Director - Intelligence & Homeland Security GD Information Technology

Herndon, Virginia

As a trusted systems integrator for more than 50 years, General Dynamics Information Technology provides information technology (IT), systems engineering, professional services and simulation and training to customers in the defense, federal civilian government, health, homeland security, intelligence, state and local government and commercial sectors. Candidate will analyze RFI and RFP requirements and develop responsive solutions including staffing and other costs, review solutions developed by others, present solutions to internal and external clients, develop and explain use-cases and will work closely with capture and proposal teams.

3 days ago

Sr. Security Engineer - GRC Frameworks & AI Governance Twitter

Washington, DC

$152,000–$258,000 / year

The ideal candidate combines deep fluency across modern security and AI frameworks with GRC engineering skills: you translate control requirements into technical implementations, partner with engineers to bake compliance into architecture and CI/CD, and replace point-in-time checklist work with continuous, engineered assurance. RESPONSIBILITIES: Own and execute security compliance implementation and audits across core frameworks including SOC 2, NIST CSF, NIST SP 800-53, ISO 27001, ISO 42001, and the EU AI Act, including control design, mapping, gap assessment, evidence collection, and remediation tracking.

14 days ago

Security Guard - Part Time Unarmed Patrol License Readiness Allied Universal

Leesburg, VA

As an Unarmed Patrol Officer at a dynamic technology and media location, you will monitor and patrol assigned areas, maintain a visible presence to help deter security-related incidents, and deliver exceptional customer service. What You'll Do: Provide customer service to employees, visitors, contractors, and/or vendors at a technology and media location by carrying out security-related procedures, site-specific policies, and emergency response activities as appropriate.

9 days ago

Associate Senior AI Solutions Officer The World Bank Group

Washington, DC

Job #: req38700 Organization: World Bank Sector: Information Technology Grade: GG Term Duration: Open-Ended Staff (OPEN-OP) Recruitment Type: Local Recruitment Location: Washington, DC,United States Required Language(s): English Preferred Language(s): Closing Date: 10/30/2026 (MM/DD/YYYY) at 11:59pm UTC. VPU Context: The Information and Technology Solutions (ITS) Vice Presidential Unit (VPU) enables the World Bank Group to achieve its mission of ending extreme poverty and boost shared prosperity on a livable planet by delivering transformative information and technologies to its staff working in over 150+ locations.

12 days ago

Unarmed Security Officer - National Harbor - Oxon Hill, MD CLG & Associates LLC

National Harbor, MD

Part time
Quick Apply

As a rapidly expanding multi-state operator with over 80 employees-and growing-we are committed to excellence, innovation, and client satisfaction. Security Officer (UNARMED) Duties and Responsibilities are:Monitor and Authorize Entrance and Departure of Employees, Visitors, and other Persons.

16 days ago

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Senior Security Jobs in Gaithersburg, MD

Sr. Security Researcher (Remote) CrowdStrike Inc

Senior Executive Recruiter Anduril Industries Inc

Senior Cyber Security Engineer ManTech

Personnel Security Analyst / Adjudicator – Senior w/ TS/SCI with FSP VMD Corp

Security Officer Unarmed Patrol Security Clearance Allied Universal

Senior Security Program Protection Specialist (TS/SCI Cleared) Assured Consulting Solutions

Senior Research Scientist Cyber Network Security Peraton Inc

Senior Director, Business Development - National Security (TS/SCI Clearance) Rocket Lab USA

Senior Engineer Alpha Omega Integration

Sr. Security Engineer - GRC Fintech & Financial Services Twitter

Senior Application Security Engineer MBL TECHNOLOGIES, INC.

Sr. Director, National Security Operations (5626) MetroStar Systems

Senior Cloud Security Architect PlanIT Group

Sr Cloud Security Engineer PlanIT Group

Senior Analyst, Proposal And Capture (Maritime) ANDURIL INDUSTRIES

Sr. Solutions Director - Intelligence & Homeland Security GD Information Technology

Sr. Security Engineer - GRC Frameworks & AI Governance Twitter

Security Guard - Part Time Unarmed Patrol License Readiness Allied Universal

Associate Senior AI Solutions Officer The World Bank Group

Unarmed Security Officer - National Harbor - Oxon Hill, MD CLG & Associates LLC

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