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Senior Security Jobs in Linthicum, MD

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

fort meade, MD

$131,800–$290,000 / year

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. The Opportunity: Join CACI as a Systems Engineer with an Information Systems Security Officer (ISSO) focus, where you will play a key role in ensuring the security, integrity, and reliability of mission‑critical systems.

30+ days ago

Senior Systems Engineer / Information Systems Security Officer (Isso) CACI International Inc.

Fort Meade, MD

$131,800–$290,000 / year

30+ days ago

Senior Information Systems Security Manager (ISSM) KBR Inc

Washington, DC

$160,000–$200,000 / year

The ideal candidate brings deep technical expertise in operating and maintaining information technology systems in a government facility at security levels ranging from Unclassified up to and including Top Secret with Special Compartmented Information (SCI) and Special Access Program (SAP) accesses required. Key Responsibilities: Serves as the primary interface with government NCR IT support organizations and the PAE to install and operate NIPRNet, SIPRNet and AFSCI voice, video, and computing capabilities within the PAE's Pentagon office while assisting with other offices throughout the NCR.

30 days ago

Senior Security Technology Program Manager SOMERSET STAFFING

Washington, DC

Quick Apply

Working closely with vendors, systems integrators, and internal stakeholders, you will be responsible for overseeing schedules, budgets, risk management, and technical integration to deliver scalable, reliable security solutions across critical infrastructure. In this high-visibility role, you will drive critical security modernization projects including onboard train video deployments and Security Operations Center (SOC) integrations by bridging the gap between operational security needs and technical execution.

20 days ago

Sr. Security Governance Engineer, Secure Build & Change Salesforce Inc

Mclean, VA

$148,500–$223,900 / year

In select cities within the San Francisco and New York City metropolitan area, the base salary range for this role is $178,900 - $246,000 annually. Collaboration: Work with Security Engineering, Product Security, Cloud Security, IAM, Compliance, Risk, Audit, Legal, and business teams.

2 days ago

Senior Security Engineer Leidos Holdings Inc

Bethesda, MD

$107,900–$195,050 / year

Coordinate vulnerability remediation across Windows, Linux, network, desktop support and other engineering teams and provide hands-on support for complex or high-priority issues as needed. 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 Security Operations Analyst Terrestris Global Solutions

Washington, DC

The Senior Security Operations Analyst monitors, detects, and responds to cybersecurity threats to protect the National Indian Gaming Commission's systems, networks, and sensitive data. We are seeking a Senior Security Operations Analyst to provide on-demand Cybersecurity and IT services to support the National Indian Gaming Commission (NIGC) mission at the NIGC Headquarters in Washington, D.C. I've never heard of Terrestris.

30+ days ago

Senior Information System Security Officer Quantum Sky

Washington, Washington, DC

$120,000–$130,000 / year
Full time

Network, network protocols, routers, and switches and how they interact with automated vulnerability assessment tools, open-source vulnerability assessment tools, and techniques used for evaluating security controls on Windows, Linux, and Unix operating systems, networking devices, databases, and web servers. OMB A-123 circular; OMB A-130 circular; FIPS 140, 199, 200, 201; NIST SP 800-18, 37 Revision 1, 39, 53 Revision 3 and 4, 53A Revision 1, 60 Volumes 1 and 2, 800-64 Revision 2, 137, 144, 147; CNSS 1253 and risk management methodologies.

7 days ago

Senior Information Systems Security Officer (ISSO) Quantum Sky

Washington, Washington, DC

$135,000–$150,000 / year
Full time

Strong written and verbal communication skills with experience developing technical documentation, presenting complex security and privacy concepts to technical and non-technical audiences, and building trusted relationships with Contracting Officer Representatives (CORs), government leadership, and cross-functional stakeholders. Develop, maintain, and present security authorization packages and supporting documentation in accordance with client requirements and NIST SP 800-53, including SSPPs, RARs, SAPs, SARs, POA&Ms, contingency and incident response plans, SOPs, configuration management plans, STIG deviations, and related artifacts.

11 days ago

Program Security Officer (Pso) - Senior CONTACT GOVERNMENT SERVICES

Washington, DC

$66,000–$133,000 / year

For the past seven years, we've been growing our government-contracting portfolio, and along the way, we've created valuable partnerships by demonstrating a commitment to honesty, professionalism, and quality work. Here at CGS we value honesty through hard work and self-awareness, professionalism in all we do, and to deliver the best quality to our consumers mending those relations for years to come.

30+ days ago

Senior Information Systems Security Officer (Isso) The MITRE Corporation

Mclean, VA

$129,200–$161,500 / year

Basic Qualifications: Typically requires a minimum of 5 years of related experience with a Bachelor's degree; or 3 years and a Master's degree; or a PhD with relevant experience who can immediately contribute at this job step; or equivalent combination of related education and work experience. With objectivity and integrity at our core, we lead federally funded research and development centers for U.S. government agencies - collaborating with industry and academia to deliver integrated, high-impact solutions that advance our nation's health, security, and prosperity.

30+ days ago

Senior Information System Security Officer Zantech

Washington, DC

Zantech is looking for a talented Senior Information System Security Officer to be responsible for the most complex systems and serves as the Cybersecurity Division's primary point of contact for an upcoming Onsite role supporting FEMA based out of their Headquarters in Washington, DC. The Sr ISSO will be critical to program success, leading the information security Compliance Branch and working across all active call orders supporting systems identified for security authorization services.

30+ days ago

Senior Information Systems Security Officer (ISSO) Mitre Corp

McLean, VA

$129,200–$161,500 / year

30+ days ago

Senior Information Systems Security Officer (ISSO) Dynamic Solutions Technology LLC

Linthicum Heights, MD

Full time
Quick Apply

Working knowledge of enterprise cybersecurity technologies and platforms, including CSAM, Splunk, ServiceNow, Tenable/Nessus or Qualys, Microsoft Defender, Microsoft Intune, BigFix, Microsoft Azure, Microsoft 365, Microsoft Entra ID, Okta, Palo Alto Panorama, and Zscaler, with specific tools subject to task-order requirements. Utilize and maintain proficiency with cybersecurity and information technology platforms, including CSAM, ServiceNow, Splunk, Tenable/Nessus, Qualys, Microsoft Defender, Microsoft Intune, BigFix, Microsoft Azure, Microsoft 365, Microsoft Entra ID, Okta, Palo Alto Panorama, and Zscaler.

30+ days ago

Senior Information Systems Security Officer (ISSO) Belay Technologies

Annapolis Junction, MD

$155,000–$195,000 / year

The program 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 Embedded Security Engineer - Digital Systems Security Mitre Corp

McLean, VA

$126,800–$158,500 / year

Basic Qualifications: Typically requires a minimum of 5 years of related experience with a bachelor's degree; or 3 years and a master's degree; or a PhD with relevant experience who can immediately contribute at this job step; or equivalent combination of related education and work experience. Experience analyzing microelectronics and hardware systems for susceptibility to implementation attacks, such as side-channel analysis, fault injection, laser voltage probing, photon emission microscopy, laser stimulation techniques, and/or microprobing and circuit edits.

21 days ago

Senior Information Systems Security Officer (QKS - 085) SageCor Solutions

Annapolis Junction, Maryland

Serving Maryland and the Greater Washington D.C. area, SageCor Solutions (SageCor) is a growing company bringing complete engineering services and true full lifecycle System Engineering services to areas requiring (or desiring) nationally-recognized expertise in high performance computing, large data analytics and cutting edge information technologies. Direct Experience: 10+ years of in-depth experience as ISSO or combination of ISSO and other security related role supporting DoD programs and contracts of similar scope, type, and complexity.

20 days ago

Information Systems Security Officer, Senior Everwatch

Annapolis Junction, Maryland

$76.93–$91.35 / hour

Compensation at EverWatch is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. Perform risk and vulnerability assessments in network, system, and application areas; leverage big data analytics and traditional security event types to identify advanced threats or indicators of compromise. .

30+ days ago

Sr Information Systems Security Officer (ISSO), Advisor TS/SCI w/poly Peraton Inc

Washington, DC

$146,000–$234,000 / year

Apply knowledge of network technologies and protocols, TCP/IP, operating systems, security protocols, system architecture and data flows, security categorization, requirements, configuration management processes, firewalls and configurations, intrusion detection and prevention systems, encryption techniques, Windows, Unix, Linux, databases, web servers, and other applications. Use eMASS to execute RMF v5 activities, document and update system status, identify and manage operational and technical security controls, assess implementation and risk, manage non-compliant and non-validated controls, manage POA&Ms from entry through closeout, produce reports, and track POA&M due dates.

30+ days ago

Information Systems Security Officer, Senior Unisity

Annapolis Junction, Maryland

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.).

7 days ago

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Senior Security Jobs in Linthicum, MD

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

Senior Systems Engineer / Information Systems Security Officer (Isso) CACI International Inc.

Senior Information Systems Security Manager (ISSM) KBR Inc

Senior Security Technology Program Manager SOMERSET STAFFING

Sr. Security Governance Engineer, Secure Build & Change Salesforce Inc

Senior Security Engineer Leidos Holdings Inc

Senior Security Operations Analyst Terrestris Global Solutions

Senior Information System Security Officer Quantum Sky

Senior Information Systems Security Officer (ISSO) Quantum Sky

Program Security Officer (Pso) - Senior CONTACT GOVERNMENT SERVICES

Senior Information Systems Security Officer (Isso) The MITRE Corporation

Senior Information System Security Officer Zantech

Senior Information Systems Security Officer (ISSO) Mitre Corp

Senior Information Systems Security Officer (ISSO) Dynamic Solutions Technology LLC

Senior Information Systems Security Officer (ISSO) Belay Technologies

Senior Embedded Security Engineer - Digital Systems Security Mitre Corp

Senior Information Systems Security Officer (QKS - 085) SageCor Solutions

Information Systems Security Officer, Senior Everwatch

Sr Information Systems Security Officer (ISSO), Advisor TS/SCI w/poly Peraton Inc

Information Systems Security Officer, Senior Unisity

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