2,850 Results for

Senior Security Jobs in Maryland

Jobs

New!

Annapolis Junction, MD2 days ago

$107,900–$195,050

Seeking a self-starting, motivated individual to be the Information System Security Officer supporting Computer Network Operations with maintaining compliance and strengthening the security posture of critical mission systems via the Risk Management Framework; will be responsible for 6 System Security Plans (SSPs). An associate’s degree or 18 semesters hours of military coursework/training in a computer-related field plus 10-years of relevant experience or high school diploma/GED plus 12-years of relevant experience may be considered.

MONTGOMRY VLG, MD9 days ago

$165,000–$185,000 Per Year

With deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. This role is ideal for a seasoned engineer who enjoys solving complex technical challenges, contributing to system architecture, and partnering closely with Systems Engineering, Development, and Test teams to deliver robust, scalable solutions.

Gaithersburg, MD9 days ago

$140,000–$165,000 Per Year

With deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. Our teams partner closely with customers to deliver innovative solutions across cloud strategy, cybersecurity, systems integration, data engineering, machine learning, AI, disaster recovery, and enterprise infrastructure initiatives.

Cockeysville, MD9 days ago

$80,000–$100,000 Per Year

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. The successful candidate will work closely with our finance team to maintain financial reports, records, and general ledgers, prepare and analyze budgets, and perform general accounting.

Patuxent River, MD17 days ago

Experience performing complex evaluations of existing procedures, processes, communication techniques, models, and/or systems related to management problems for the corporate operations for a major Legislative or Department of Defense (DoD) Echelon Command / Secretariat; past experience supporting a Navy or Marine Corps Command Element preferred. Job duties will include, but not be limited to: Ensure project procedures and controls are followed, manage manning and staffing project efforts, and lead problem resolution efforts.

Patuxent River, MD17 days ago

This individual must have direct experience supporting the corporate operations for a major Legislative or Department of Defense (DoD) Echelon Command / Secretariat; past experience supporting a Navy or Marine Corps Command Element preferred. A BS or BA degree in Business Administration , Management or other relevant technical discipline is required in addition to at least six (6+) years of professional experience in an office operation or managment support contract.

Patuxent River, MD17 days ago

knowledge sufficient to support senior Navy Leadership in facilitating sand developing command wide strategic planning and Enterprise level vision documents, administering large organization executive board meetings, and developing command-wide documentation. At least five (5) years of experience as an analyst of which at least 3 years must be specialized in a program management, technical, or business analysis discipline; and included in the five (5) years, there must be three (3) years professional experience supporting NAVAIR.

Patuxent River, MD20 days ago

This role serves as a strategic leader responsible for guiding analytical approaches, shaping project direction, and delivering high-impact solutions in support of mission-critical objectives. Senior Analyst: Bowhead is seeking a highly experienced Senior Analyst to support an upcoming effort at NAWCAD in Patuxent River, MD.

Patuxent River, MD21 days ago

At least ten (10) years of experience and a master’s degree or bachelor’s degree plus four (4) additional years of experience may be substituted for a Master’s; of the minimum required 10 years of experience, at least 3 years of experience must be in a business functional area with the U.S. Navy or other DoD program. The effort provides a wide range of technical, project management, engineering, logistics, training, and administrative support for air, ship, shore, expeditionary, and surveillance systems that directly support warfighter operations.

Patuxent River, MD21 days ago

The effort provides a wide range of technical, project management, engineering, logistics, training, and administrative support for air, ship, shore, expeditionary, and surveillance systems that directly support warfighter operations. The Senior Data Scientist leads the development and implementation of advanced techniques and analytics applications to transform raw data into actionable insights using data-oriented programming languages and visualization software.

Fort Meade, MD10 days ago

$107,900–$195,050

The software engineer will work closely with data scientists and end users to develop innovative analytic tools to further discovery and tradecraft around critical global challenges, then deliver innovative solutions focused on operationalizing data science. Mission Focus: Work directly with data scientists as well as mission analysts to solve the most demanding strategic problems; perform end-to-end software engineering to prototype, develop, integrate, test, and deploy tools and tradecraft into the customer’s corporate architecture.

Baltimore, MD30+ days ago

Temporary
Contractor
Full-time

Experience managing directory sync into Azure AD and deep knowledge of Azure AD Sync for Federation, authentication, SSO, and directory sync with Azure AD. Systems engineer – Microsoft 365 to develop solutions for e-mail and collaboration tools as well as handle day-to-day operations within the division.

Annapolis, MD18 days ago

$109,800–$134,200

Manages and leads key aspects of project management support, including coordination of shop drawings and submittals, development and processing of change orders, response to Requests for Information (RFIs), tracking of project progress and schedules, preparation and tracking of invoices, as well as financial planning, cost forecasting, and schedule management. The Senior Construction Project Manager (PM) leads project teams and plans, directs, and coordinates activities of large-scale, energy efficiency-focused commercial construction projects.

New!

Cumberland, MD1 day ago

$16.58–$16.58

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. 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.

New!

Hagerstown, MD1 day ago

$19.24–$20

New!

Bel Air, MD1 day ago

$18–$20

Columbia, MD11 days ago

Remote

$122,500–$163,166.67 Per Year

Deep expertise in at least one relevant security domain (e.g., Application Security, Vulnerability Management, Cloud Security, Container Security, Threat Intelligence, Software Supply Chain, Network Security, Cryptography), combined with broad general knowledge across security and engineering. This team serves as the critical bridge between our Research organization and Product teams, driving technology transfer and productization of cutting-edge security innovations.

Hanover, MD30+ days ago

$84,000–$107,000 Per Year

This role serves as a subject matter expert and liaison between HR, IT, and business stakeholders to ensure HR systems meet organizational needs and support strategic initiatives. By connecting global resources and local experience, Keller develops innovative, practical, and cost-effective solutions to geotechnical challenges.

New!

Bethesda, MD3 days ago

$80,000–$95,000 Per Year

System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Requirements Minimum of 5+ years of IT support experience, including at least 2 years in a supervisory or lead role .

Baltimore, MD9 days ago

$55–$65 Per Hour

Minimum of five (5) years of experience creating, configuring, and administering Jira projects, including workflows, issue types, custom fields, dashboards, permissions, and integrations with ServiceNow to support cross-platform collaboration. Support Jira development and administration activities, including workflow configuration, custom fields, issue types, dashboards, and integrations with ServiceNow to enable seamless collaboration and tracking across platforms.

New!

MS, MarylandToday

$50–$70 Per Hour

ResponsibilitiesSupport a specialized enterprise architecture team in designing, developing, and evaluating proof-of-concept (PoC) solutions that enhance enterprise architecture artifacts, automation, and business process models. Produce and deliver high-quality documentation, briefings, and analytical products using Microsoft Office applications to support the USTRANSCOM Enterprise Architecture team.

Rockville, MD12 days ago

$107,900–$195,050

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. Leidos Dig Mod Health IT division is seeking an expert-level Senior Microsoft Identity Engineer to lead complex identity management solutions for large-scale government digital transformation initiatives.

Columbia, MD11 days ago

$202,000–$269,333.33 Per Year

Process & Escalation: Define and enforce clear, compliant escalation processes, acting as the exclusive point of contact for external technical vendors to prevent unauthorized direct communication with Tenable customers or other internal teams. The role requires deep technical knowledge across Tenables product suite and a proven ability to lead intricate, cross-functional projects with a focus on both strategic product-market fit and hands-on technical execution.

Columbia, MD14 days ago

$116,350–$210,325

The selected candidate will oversee a diverse portfolio of contracts aligned to our Cyber & Analytics Business Area and must have experience providing cradle-to-grave contract administration support for FFP, CPAF, CPFF and T&M government contracts; including RFP analysis, hands-on proposal development, coordination of appropriate internal reviews, contract negotiation, and contract/task order administration and execution. Experience with Government (FAR / DFAR) contracting: Fixed Price (FP), Time & Material (T&M), Cost Plus Award Fee (CPAF), Cost Plus Fixed Fee (CPFF), Level of Effort (LOE), Indefinite Delivery / Indefinite Quantity (IDIQ) and General Service Administration (GSA) type contracts.

Hanover, MD30+ days ago

$84,000–$107,000 Per Year

Linthicum, MD14 days ago

Required Experience: Bachelor’s degree in a technical discipline and 15 years’ experience as a System Administrator, OR High school diploma and 20 years’ experience as a System Administrator. Ability to demonstrate cyber/IT related experience with attention to detail, customer service, oral and written communication, and problem solving.

New!

Severna Park, MD1 day ago

$35–$37.50 Per Hour

This role is designed for a top-tier processor who operations with a high degree of independence, consistently delivers clean files, and confidently navigates complex or time-sensitive transactions without reliance on escalation. This role also operates effectively in a rapidly evolving environment, including the continued adoption of new technologies and AI-driven tools that enhance processing efficiency, accuracy, and client experience.

Odenton, MD10 days ago

$131,300–$237,350

Portal Management & Technical Integration: Provide senior operational leadership within an agile development team, actively participating in technical interchange meetings, architectural reviews, and sprint planning to represent the voice of the end-user. Serve as a MAVEN Architecture & Mission Integration SME: Act as the primary operational authority for DISA J 3/5/7 MAVEN deployments, ensuring all developed tools and dashboards strictly align with Joint Staff mission requirements and Combatant Command battle rhythms.

Odenton, MD10 days ago

$131,300–$237,350

Gaithersburg, MD10 days ago

$107,900–$195,050

Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ mission to defend against evolving threats around the world. Leidos Intel Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ mission to defend against evolving threats around the world.

New!

Gaithersburg, MD1 day ago

Remote

$107,900–$195,050

The successful candidate will serve as both a hands-on technical contributor and Salesforce solution architect, providing leadership throughout the entire software development lifecycle—from requirements analysis and solution design to development, testing, deployment, and operational support. This role is responsible for the design, development, integration, and optimization of mission-critical Salesforce solutions supporting customer relationship management (CRM), knowledge management (KM), public-facing portals, and other enterprise business functions.

Linthicum Heights, MD10 days ago

$107,900–$195,050

Mission Focus: Collaborate closely with technical leadership to design, develop, and maintain LLM orchestration frameworks that coordinate static analyzers, retrieval-augmented generation (RAG) systems, and automated testing pipelines. 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.

Odenton, MD9 days ago

$69,550–$125,725

Assist senior CSWOs in providing technical oversight of information security services and customer support initiatives, by updating DoD shared SA and knowledge management (KM) tools, including CMDNet, websites, blogs, and wikis, chat, collaboration tools, and portals. CSWOs are principally engaged in the triage of events, cyber incident handling, network analysis and threat detection, trend analysis, metric development, vulnerability information dissemination, and the DoD Cyber Security Service Provider (CSSP) methodology.

Gaithersburg, MD11 days ago

$107,900–$195,050

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. June 8, 2026For 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.

Ellicott City, MD7 days ago

GardaWorld Security is a global champion in sophisticated and tailored security solutions, employing and training highly skilled and dedicated professionals across the globe. This policy applies to all terms and conditions of employment including, but not limited to hiring, placement, assignment, promotion, termination, layoffs, recalls, transfers, leaves of absence, compensation, and training.

Columbia, MD11 days ago

$137,500–$183,500 Per Year

As a Software Engineer, you will work across the stack , building microservices, APIs, and user interfaces , leveraging modern frameworks and cloud technologies. When you’re part of our #OneTenable team, you can expect to partner with some of the most talented and passionate people in the industry, and have the support and resources you need to do work that truly matters.

New!

Bethesda, MD2 days ago

$139,100–$251,450

Equally important is the ability to operate as a disciplined team member who reinforces the cohesion of a tight-knit unit operating under significant pressure in management of a diverse and large portfolio of enterprise capabilities. Strong analytical competence, problem-solving, communication and organizational skills Provide audience-appropriate written and verbal communications and demonstrate strong interpersonal and customer service skills.

New!

Odenton, MD2 days ago

$92,300–$166,850

Identify legacy service paths (i.e. dataflow, firewall rulesets, and ACLs) and develop strategies and designs for the to-be enterprise service capability to meet requirements while balancing security, sustainability, and maintainability. Partner with key stakeholders and technical experts to perform legacy environment discovery, assessing current capabilities, configurations, and unique requirements to develop a design and architecture leveraging approved design patterns.

New!

Gaithersburg, MD3 days ago

$220,000–$260,000

This person brings strong executive presence, earns the respect of highly technical engineering teams, and leads with both quantitative rigor and commercial instinct. The ideal candidate will own P&L, drive commercialization, and serve as the strategic voice of the customer in the life sciences research market.

Annapolis Junction, MD10 days ago

$131,300–$237,350

You will provide software process management and control throughout the coding portion of the software development process and will promote code reuse and cross-program collaboration while reducing maintenance costs by creating common functions and shared actions for developers and testers. Must have experience or familiarity with multiple Java frameworks: Spring to include Boot and Data, Java Enterprise Edition (JEE) (i.e., JPA, EJB, JTA, Servlet), Jackson, Jersey, Swing, JavaFX.

Columbia, MD11 days ago

$188,000–$250,666.67 Per Year

We are seeking a Senior Director of Federal Sales to lead a high-performing team of seasoned sales professionals across the Civilian, Department of Defense (DoD), Intelligence Community (IC), and Federal System Integrator (FSI) sectors. Ecosystem & Alliance Building: Cultivate high-impact relationships with FSIs and specialized Federal channel partners to co-design and execute winning joint-sales campaigns.

New!

Gaithersburg, MD2 days ago

$107,900–$195,050

The ISSO is responsible for meeting regulatory and non-regulatory compliance (security best practices) demands, providing leadership over security assessment activities, working across system ownership and management organizations to test security controls, policies, and procedures, providing program management support, team leadership, and participating in and coordinating the support as needed for security assessment and activities The ISSO also manages and enforces government and corporate information security policies, provides training, and educates end users and program staff about proper security practices. The ISSO conducts security and risk assessments as required using a range of security accreditation frameworks (e.g., NIST, RMF, Common Criteria, DoD, the Intelligence Community Directives (ICDs)), and works to mitigate risks by applying security controls effectively to achieve an acceptable degree of operational risk.

New!

Edgewood, MD2 days ago

$154,050–$278,475

This mission-critical effort delivers secure perimeter access control capabilities across Army Installations worldwide, including CONUS, Alaska, Hawaii, Kwajalein, Puerto Rico, and future OCONUS expansions into PACOM, USAEUR, and EMEA. The successful candidate will lead enterprise-level operations, cybersecurity compliance, logistics support, cloud-enabled sustainment, and installation modernization initiatives supporting Army and Joint force protection missions worldwide.

New!

Aberdeen Proving Ground, MD4 days ago

$120,000–$160,000

Attend and provide classified and unclassified IA and cybersecurity support at PM PNT IPT meetings, working groups, PNT forums, and technical reviews, including SSR, SRR, system functional review, PDR, CDR, PRR, FCA, and PCA events. Plan, create, review, coordinate, and maintain classified and unclassified PM PNT IA and cybersecurity acquisition documentation, including Cybersecurity Strategy, Clinger-Cohen Act documentation, SEP, TEMP, and acquisition strategy updates.

New!

Hyattsville, MD1 day ago

The ideal candidate will possess extensive experience estimating federal construction projects, including design-build and design-bid-build opportunities, and have a proven track record of developing winning proposals for agencies such as DoD, GSA, VA, USACE, NAVFAC, DHS, and other federal customers. Candidates must have experience estimating actual building construction projects including renovations, facility modernization, MEP systems, roofing, building envelope, interiors, and occupied facilities.

Suitland, MD30+ days ago

$53,937–$114,395
Full-time
Employee

Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.

Hanover, MD30+ days ago

$115,119–$196,443
Full-time
Employee

Level 4: 9 years experience with Bachelors in related field; 7 years experience with Masters in a related field or 4 years experience with a PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 13 years relevant experience. Level 3: 5 years experience with Bachelors in related field; 3 years experience with Masters in a related field or 0 years experience with a PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 6 years relevant experience.

California, MD30+ days ago

$128,989–$185,000
Full-time
Employee

9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 13 years relevant experience. As part of an on‑site team supporting NAWCAD, you will design, enhance, and maintain critical software components used across the JSE ecosystem—including NGTS, DIADS, GRID, and other constructive and virtual simulation frameworks.

California, MD30 days ago

$135,135–$200,000
Full-time
Employee

HII Mission Technologies is seeking a Senior Tactical Operations and Air/Weapons Specialist to support advanced modeling, simulation, and tactical employment activities within the Joint Simulation Environment (JSE) at NAS Patuxent River, MD. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.

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Senior Security Jobs in Maryland

Senior Information Systems Security Officer (ISSO-3) Leidos

Senior Software Engineer (C++ / Java) Jobot

Sr. Software Engineer Jobot

Senior Accountant (Hybrid) Jobot

Program Management Specialist, Project Manager, Senior Bowhead / UIC Technical Services

Program Management Specialist, Program Manager, Senior Bowhead / UIC Technical Services

Management Analyst, Senior Bowhead / UIC Technical Services

Senior Analyst Bowhead / UIC Technical Services

Senior Procurement Clerk Bowhead / UIC Technical Services

Senior Management Analyst Bowhead / UIC Technical Services

Senior Data Scientist Bowhead / UIC Technical Services

Senior Software Engineer (SWE-3) Leidos

Sr. Systems Engineer - Microsoft 365 Trigyn Technologies Inc

Senior Construction Project Manager, CES Constellation Energy

Security Officer - Truck Gate Securitas

Patrolling Security Officer Securitas

Access Control Security Officer Securitas

Senior Research Engineer, Systems Engineering Team Tenable Network Security

Sr. Application Specialist Keller North America, Inc.

Senior Help Desk Engineer System One

Senior ServiceNow Architect System One

Senior Systems Architect System One

Sr. Identity and Access Management (ICAM) Engineer Leidos

Senior Director, Ecosystem & Solution Architectures - Technical Alliances Tenable Network Security

Senior Contracts Manager Leidos

Sr. Application Specialist 1Britcom

Senior System Administrator III Varada Consulting

Senior Pre-Processor Eagle Title LLC

Senior MAVEN Architect & Operations Integrator Leidos

Senior MAVEN Architect & Mission Integrator SME Leidos

Senior Software Engineer Leidos

Senior Salesforce Developer Architect Leidos

Senior AI Engineer (SWE-3) Leidos

Cyber Security Watch Officer Leidos

Senior Software Developer Leidos

Surveillance Security Rover GardaWorld Security Services U.S.

Senior Software Engineer Tenable Network Security

Senior Portfolio Manager and Systems Integration SME Leidos

Sr. Network Engineer Leidos

Senior Director, Product Management & Strategy Gables Search Group

Sr. Software Engineer TS/SCI Polygraph Leidos

Senior Director, Federal Sales Tenable Network Security

Information System Security Officer Leidos

Sr. Program Manager Leidos

Cybersecurity Engineering (EMASS) - PNT Credence

Construction Chief Estimator/Senior Estimator Meltech Corp.

Cognizant/Alternate Cognizant Security Officer Company Confidential

Senior Cloud Engineer (Multiple Levels) - 28329 Company Confidential

Sr. Software Developer (Real-Time Simulation & Dev Lab) - 27748 Company Confidential

Sr. Tactical Operations and Air/Weapons Specialist - 27747 Company Confidential

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