4,167 Results for

Senior Security Jobs in Maryland

Jobs

Senior Software Developer DCS Corporation

Patuxent River, MD

$90,220–$145,000 / year

This software developer analyzes, designs and develops computer software required to support hardware or technical service products. Experience developing Microsoft Windows software applications using C#, C++, and client applications using one or more of the following: NET framework Windows Forms and.

30+ days ago

Senior Family Law Paralegal Blattner Family Law Group

Towson, MD

$75,000–$95,000 / year
Quick Apply

Draft, review, and edit legal documents, including pleadings, contracts, subpoenas, complaints, interrogatories, discovery requests, legal briefs, affidavits, and correspondence under the supervision of a lawyer. Assist attorneys in preparing for trials, hearings, and depositions by organizing exhibits, coordinating witnesses, filing motions, and conducting research on legal articles.

2 days ago

Senior Software Developer Leidos

Gaithersburg, MD

$140,000–$165,000 / year

This work aligns with the FAA’s broader initiative to modernize legacy flight service capabilities, replacing aging infrastructure with scalable, cloud-based platforms designed to improve safety and operational efficiency—particularly in remote and high-dependency aviation environments. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com .

4 days ago

Sr. Software Developer Leidos

Gaithersburg, MD

$87,100–$157,450 / year

If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com . July 13, 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

Senior Scrum Master - Remote Available Leidos

Gaithersburg, MD

Remote

$107,900–$195,050 / year

If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com . The role works closely with Product Owners, engineers, program leadership, and other Scrum Masters to ensure alignment across teams and successful execution of program objectives.

1 day ago

Senior Security Specialist Armada Ltd

Patuxent River, MD

Full time
Quick Apply

Ideal applicants have hands-on experience in roles such as Facility Security Officer (FSO), Special Security Officer (SSO), Certified SCIF Security Officer (CSSO), Site Security Representative (SSR), or Government SAPF Security Officer (GSSO).Minimum EducationHigh School Diploma or GED required. The Senior SS shall monitor and control access to facility(s) and restricted areas under their responsibility by checking personnel passes, Common Access Cards (CAC) and validating security clearances utilizing DISS or other security database systems and visit requests.

30+ days ago

Senior Information Systems Security Officer (Sr. ISSO) - TS/SCI with Poly required Emtak

Annapolis Junction, Maryland

DoD 8570/8140 compliance with IAM Level II or IAT Level III , such as CISSP/Associate, CASP+/SecurityX, or another applicable DoD-approved certification. The ideal candidate will have a strong background in RMF, security documentation, authorization activities, continuous monitoring, and security compliance , along with the ability to work independently with technical teams and government stakeholders.

30+ days ago

Senior Information Systems Security Officer ISSOInformation Systems Security Manager ISSM CALIBRE Systems Inc

Aberdeen, MD

Senior Information Systems Security Officer ISSOInformation Systems Security Manager ISSM - CALIBRE Systems Inc.

30+ days ago

Senior Security Engineer-Network Security Assessment & Post-Quantum Cryptography (PQC) - Hybrid ATD Technology LLC

Suitland, MD

$180,000–$230,000
Quick Apply

Analyze cryptographic implementations key-exchange, digital-signature, and cipher-suite selections; certificate and PKI dependencies; key management and HSM integration; and FIPS 140-2/140-3 validated modules to identify components that rely on quantum-vulnerable public-key algorithms (RSA, Diffie-Hellman, ECDH, ECDSA). Assess the impact of PQC requirements on network implementations, including larger keys and signatures affecting packet size, fragmentation, MTU, and handshake latency; hardware, ASIC, and crypto-accelerator constraints; hybrid key-establishment options; and certificate-chain and protocol interoperability.

3 days ago

Offshore Sr. GRC Analyst / Sr. ISSO (Information System Security Officer) Consultant | CMMC IBSS Corporation

Silver Spring, MD

Remote

Quick Apply

The ideal candidate must be capable of independently developing and maintaining System Security Plans (SSPs), identifying documentation and evidence deficiencies, and coordinating directly with stakeholders to request corrected or additional artifacts as needed. If you require reasonable accommodation in completing this application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please direct your inquiries to the Talent Acquisition department at Recruiting@ibsscorp.com.

30+ days ago

Senior Systems Engineer / Information Systems Security Officer (ISSO) CACI

Fort Meade, Maryland

$131,800–$290,000 / year

Job Title: Senior Systems Engineer / Information Systems Security Officer (ISSO)Job Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: NoneType of Travel: None* * * The Opportunity: Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.

30+ days ago

Sr Information Systems Security Officer ELEVI Associates

Annapolis Junction, MD

Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Experience with implementing and maintaining system security documentation, including SSPs, SAPs, POA&Ms, and security assessment artifacts, coordinating closely with ISSMs, ISSEs, system owners, and authorizing officials.

9 days ago

Sr. Information Systems Security Officer Science Applications International Corp

Suitland, MD

$160,001–$200,000 / year

Review all hardware and software changes proposed and/or being implemented for appropriate security operation, providing configuration management support as it relates to the security configuration of the system, updating documentation and hardware and software inventory lists. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services.

30 days ago

Senior Information System Security Officer Leidos Holdings Inc

Annapolis Junction, MD

$131,300–$237,350 / year

The selected candidate will act as an ISSO for a large software development program which includes software maintenance and development, IT support (Network/Workstation/Server), systems integration and life cycle support, enterprise application development, network engineering, and information systems security (ISS). Provide support for Information Assurance Vulnerability Alerts (IAVAs) management (initiating IAVA responses and system security scans, completing remediation, extending IAVA patches and security updates to designated sites, etc.).

30+ days ago

Senior Information System Security Officer(ISSO) Leidos Holdings Inc

Annapolis Junction, MD

$131,300–$237,350 / year

30+ days ago

Sr. Information System Security Officer Prosync

Annapolis Junction, MD

Quick Apply

ProSync Technology Group, LLC (ProSync) is an award-winning, SDVOSB Defense Contracting company with a strong military heritage and a record of excellence in supporting the Department of Defense and the Intelligence Community. Must have ten (10) or more years of in-depth experience as ISSO or combination of ISSO and other security related role supporting IC or DoD programs and contracts of similar scope, type, and complexity.

24 days ago

Senior Security Support-WP-AFB Serco Group plc

Andrews AFB, MD

These are focused on reducing developmental risk and associated cost and schedule growth, ultimately ensuring AT architectures are developed, supporting protection of US warfighters against loss of life caused by technological exploitation of US weapons systems. Actual base salary will be determined by a variety of factors, including but not limited to, the scope of the role, relevant experience, job-related knowledge, education and training, key skills, and geographic market considerations.

14 days ago

Sr. Security Officer (Day Shift) Churchill Downs Inc.

Berlin, MD

Ocean Downs has been delivering exceptional entertainment experiences in Maryland's Eastern Shore region, combining horse racing, casino gaming, live events, and dining-all in a community-focused setting that celebrates the spirit of Eastern Shore hospitality. Understand and follow procedures for: key management, alarm protocol, lost and found, found money, unattended children and pets policy, visitor badge control, radio inventory, and armored car arrival.

30+ days ago

Sr. Security Officer (Swing Shift) Churchill Downs Inc.

Berlin, MD

30+ days ago

Senior Security Engineer Financial Industry Regulatory Authority Inc

Rockville, MD

FINRA employees are required to disclose to FINRA all brokerage accounts that they maintain, and those in which they control trading or have a financial interest (including any trust account of which they are a trustee or beneficiary and all accounts of a spouse, domestic partner or minor child who lives with the employee) and to authorize their broker-dealers to provide FINRA with duplicate statements for all of those accounts. Additional insurance includes basic life, accidental death and dismemberment, supplemental life, spouse/domestic partner and dependent life, and spouse/domestic partner and dependent accidental death and dismemberment, short- and long-term disability, long-term care, business travel accident, disability and legal.

30+ days ago

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Senior Security Jobs in Maryland

Senior Software Developer DCS Corporation

Senior Family Law Paralegal Blattner Family Law Group

Senior Software Developer Leidos

Sr. Software Developer Leidos

Senior Scrum Master - Remote Available Leidos

Senior Security Specialist Armada Ltd

Senior Information Systems Security Officer (Sr. ISSO) - TS/SCI with Poly required Emtak

Senior Information Systems Security Officer ISSOInformation Systems Security Manager ISSM CALIBRE Systems Inc

Senior Security Engineer-Network Security Assessment & Post-Quantum Cryptography (PQC) - Hybrid ATD Technology LLC

Offshore Sr. GRC Analyst / Sr. ISSO (Information System Security Officer) Consultant | CMMC IBSS Corporation

Senior Systems Engineer / Information Systems Security Officer (ISSO) CACI

Sr Information Systems Security Officer ELEVI Associates

Sr. Information Systems Security Officer Science Applications International Corp

Senior Information System Security Officer Leidos Holdings Inc

Senior Information System Security Officer(ISSO) Leidos Holdings Inc

Sr. Information System Security Officer Prosync

Senior Security Support-WP-AFB Serco Group plc

Sr. Security Officer (Day Shift) Churchill Downs Inc.

Sr. Security Officer (Swing Shift) Churchill Downs Inc.

Senior Security Engineer Financial Industry Regulatory Authority Inc

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