11,267 Results for

Senior Security Jobs in New Carrollton, MD

Jobs

Sr. Delivery Consultant, National Security (NatSec) Professional Services (ProServe), WWPS ProServe Amazon.com Inc

Herndon, VA

As an experienced technology professional, you will be responsible for: Designing and implementing complex, scalable, and secure AWS solutions tailored to customer. The Amazon Web Services Professional Services (ProServe) team is seeking a skilled Delivery Consultant. to join our team at AWS.

30+ days ago

Senior Technology & Security Consultant AECOM

Washington, District of Columbia

$155,000–$165,000
Full time

We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options , well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan.

9 days ago

Senior DevSecOps Engineer Leidos

Alexandria, Virginia

September 23, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Our Digital Modernization sector is at the forefront of next-generation technology, architecting cutting-edge solutions in cyber defense, logistics optimization, security operations, and decision intelligence.

30+ days ago

Naval Architect, Senior THOR Solutions, LLC

Washington, DC

$130,000–$150,000 / year

Founded in 2009, THOR Solutions, LLC (THOR) is a rapidly growing Center for Veteran’s Excellence (CVE) verified Service-Disabled Veteran-Owned Small Business (SDVOSB) providing mission critical support across the Department of Defense, Department of Homeland Security, federal civilian agencies and commercial maritime industry, worldwide. THOR provides innovative and tailored expertise in multidisciplinary engineering, project and program management, business and financial management, technical support, integrated logistics support, training support, fleet support, corporate operations support, assessments and studies.

21 days ago

Naval Architect (General), Senior THOR Solutions, LLC

Baltimore, MD

Full time

30+ days ago

Senior R&D Financial Analyst Noblis Inc

Washington, DC

$86,800–$135,625 / year

Within S&T, HSARPA executes Research, Development, Test and Evaluation (RDT&E) to transition solution approaches, technologies, and knowledge products in support of DHS Component customers including U.S. Coast Guard (USCG), Transportation Security Administration (TSA), Customs and Border Protection (CBP), U.S. Secret Service, the Federal Emergency Management Agency (FEMA), Immigration and Customs Enforcement (ICE), the Cybersecurity and Infrastructure Security Agency (CISA), Federal, State, Local Tribal and Territorial (FSLTT) first responders, and the larger Homeland Security Enterprise (HSE). Serve as the primary HSARPA Financial and Budget Team point of contact for an HSARPA technical division providing relevant updates regarding the status of funding, guidance related to execution of funds, and assistance completing budget and finance related taskers including Resource Allocation Planning (RAP), Spend Plan development, and Congressional and Office of Management and Budget Justifications (CJ and OMBJ respectively).

30+ days ago

Senior Linux Systems Admin (UiPath) Leidos

Alexandria, VA

$116,350–$210,325 / year

The Digital Modernization Sector at Leidos is seeking a dynamic Sr Linux Systems Administrator to support cloud modernization initiatives for the United States Coast Guard (USCG) at Command, Control, Communication, Computer, Cyber, and Intelligence Service Center (C5ISC) in the Alexandria, VA area. July 21, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

13 days ago

Senior Cloud Engineer Leidos

Alexandria, Virginia

Candidate must, at a minimum, have one of these certifications: MCSE (Server), Certified AWS SysAdmin, AWS Certified Cloud Practitioner, AWS Certified Developer, AWS Certified Solutions Architect, AWS Certified DevOps Engineer, AWS Certified Advanced Networking, AWS Certified Security, Azure Developer Associate, Azure Solutions Architect. July 17, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

30+ days ago

Security Officer Part Time Driving Patrol Allied Universal

Fairfax, VA

Conduct regular and random unarmed patrols of utility facilities, buildings, access points, parking areas, and perimeter areas to help identify unusual conditions and help deter unauthorized activity. This primarily driving role involves conducting routine vehicle and foot patrols, monitoring assigned areas, helping to deter security-related incidents, and providing professional customer service.

9 days ago

Security Officer Part Time Unarmed Patrol Security Clearance Readiness Allied Universal

Arlington, VA

As a Patrol Unarmed Officer at a leading aerospace and defense location, you will monitor and patrol assigned areas, maintain a visible presence to help deter security-related incidents, and deliver exceptional customer service and communication. Complete required activity reports, document observations and incidents accurately, and communicate relevant security-related information to Allied Universal leadership and designated client contacts.

28 days ago

Security Officer Part Time Patrol Service Allied Universal

Arlington, VA

As an Unarmed Patrol Officer at a dynamic aerospace and defense location, you will monitor and patrol assigned areas, maintain a visible presence to help deter security-related incidents, and provide exceptional customer service and communication. Conduct regular and random unarmed patrols of facilities, access points, restricted areas, parking areas, and perimeter locations to help identify unusual activity and support site requirements.

14 days ago

Security Officer Part Time Security Clearance Patrol Observation Allied Universal

Arlington, VA

Conduct regular and random unarmed patrols throughout the facility, including business areas, entrances, parking areas, and perimeter locations, to help identify and report unusual conditions. As an Unarmed Patrol Officer with Allied Universal, you will monitor and patrol assigned areas, maintain a visible presence to help deter incidents, and support a secure environment.

14 days ago

Senior Staff Product Security Engineer, AI Security & Security Assurance Medallia Inc

McLean, VA

$184,000–$245,000 / year

This individual will serve as the technical leader for AI Security and Security Assurance, partnering with Product, Engineering, Architecture, Data Science, and Security teams to ensure security is embedded into the design, development, and deployment of modern AI-enabled capabilities. Medallia considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, candidate's work location, education/training, key skills, internal peer equity, external market data, as well as, market and business considerations when making compensation decisions.

30+ days ago

Campus Security Officer Securitas Security Services USA Inc

Columbia, MD

Job Requirements of the Security Officer/Security Guard include but are not limited to: Security Officers/Security Guards observes and reports activities and incidents at an assigned client site, providing for the security and safety of client property and personnel. Frequent sitting, standing and walking, which may be required for long periods of time, and may involve climbing stairs and walking up inclines and on uneven terrain.

30+ days ago

Front Desk Security Officer Securitas Security Services USA Inc

Vienna, VA

Job Requirements of the Security Officer/Security Guard include but are not limited to: Security Officers/Security Guards observes and reports activities and incidents at an assigned client site, providing for the security and safety of client property and personnel. Accordingly, if reasonable accommodation is required to fully participate in the job application or interview process, to perform the essential functions of the position, and/or to receive all other benefits and privileges of employment, please contact PrivacyRequests@securitasinc.com.

3 days ago

Security Officer - Logistics Securitas Security Services USA Inc

Rockville, MD

Job Requirements of the Security Officer/Security Guard include but are not limited to: Security Officers/Security Guards observes and reports activities and incidents at an assigned client site, providing for the security and safety of client property and personnel. Accordingly, if reasonable accommodation is required to fully participate in the job application or interview process, to perform the essential functions of the position, and/or to receive all other benefits and privileges of employment, please contact PrivacyRequests@securitasinc.com.

3 days ago

Federal Financial Management Senior Consultant Guidehouse

Arlington, VA

$98,000–$163,000 / year

Incoming Senior Consultants will work with Chief Financial Officer (CFO) organizations to help them address their most pressing challenges in internal control, financial reporting, and process optimization. Compensation decisions depend on a wide range of factors, including but not limited to skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs.

16 days ago

Senior Operations Facilitation Manager Guidehouse

Tysons Corner, Virginia

The Senior Operations Facilitation Manager for Regional and State, Local, Tribal, and Territorial Partnerships will serve as a strategic advisor and coordination lead across regional partners, state, local, tribal, and territorial organizations, government cybersecurity stakeholders, technical teams, and other operational partners. The successful candidate will combine consulting, facilitation, and stakeholder-engagement skills with substantive experience in cyber threat intelligence, security operations center processes, cyber incident response, and intergovernmental cyber defense collaboration.

21 days ago

Sr. Contracts Specialist Guidehouse

Bethesda, Maryland

$85,000–$141,000 / year

Compensation decisions depend on a wide range of factors, including but not limited to skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs. Leverage expertise in negotiation, handle multiple priorities effectively, work with a wide variety of technical and project management staff, and apply knowledge of risk assessments and federal procurement topics.

30+ days ago

Sr. Corporate Support – Governance 2025-CAL-102 ICES

Chantilly, Virginia

Bachelor’s degree in a related field such as: Public Policy / Public Administration, Business Administration, Organizational Management, Political Science / Government, Information Systems or related technical discipline (if governance is IT-aligned). Duties: Draft, edit, and publish policies, strategy documents, procedures, and governance requirements supporting Directorate, Office, and CIO operations in accordance with agency governance protocols.

30+ days ago

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Senior Security Jobs in New Carrollton, MD

Sr. Delivery Consultant, National Security (NatSec) Professional Services (ProServe), WWPS ProServe Amazon.com Inc

Senior Technology & Security Consultant AECOM

Senior DevSecOps Engineer Leidos

Naval Architect, Senior THOR Solutions, LLC

Naval Architect (General), Senior THOR Solutions, LLC

Senior R&D Financial Analyst Noblis Inc

Senior Linux Systems Admin (UiPath) Leidos

Senior Cloud Engineer Leidos

Security Officer Part Time Driving Patrol Allied Universal

Security Officer Part Time Unarmed Patrol Security Clearance Readiness Allied Universal

Security Officer Part Time Patrol Service Allied Universal

Security Officer Part Time Security Clearance Patrol Observation Allied Universal

Senior Staff Product Security Engineer, AI Security & Security Assurance Medallia Inc

Campus Security Officer Securitas Security Services USA Inc

Front Desk Security Officer Securitas Security Services USA Inc

Security Officer - Logistics Securitas Security Services USA Inc

Federal Financial Management Senior Consultant Guidehouse

Senior Operations Facilitation Manager Guidehouse

Sr. Contracts Specialist Guidehouse

Sr. Corporate Support – Governance 2025-CAL-102 ICES

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