1,262 Results for

Cyber Security Jobs in Greenbelt, MD

Jobs

New!

Germantown, MD4 days ago

$130,000–$150,000 Per Year

GIAC Certified Intrusion Analyst (GCIA), GIAC Certified Incident Handler (GCIH), Certified Information System Security Professional or Associate (CISSP or Associate), ISC2 Certified Information Security Manager (CISM), Certified Information Systems Auditor (CISA), Project Management Professional (PMP), Certified Associate in Project Management (CAPM). A Cybersecurity Lead will develop project management plans such as Work Breakdown Structure, mentor and guide team members on the preparation of technical deliverables and resolve project issues, prepares progress/status reports on technical deliverables, and monitor contractual requirements bringing in help from outside the project as needed to mitigate risks.

Laurel, MD11 days ago

$100,000–$245,000

We have custom facilities tailored to specific classes of systems including vehicles, telecommunications/network infrastructure, and industrial systems as well as general reverse engineering labs. Our team specializes in software and hardware reverse engineering, vulnerability research, and developing proof-of-concept offensive cyber capabilities with a focus on embedded systems.

Laurel, MD11 days ago

$105,000–$290,000

We have custom facilities tailored to specific classes of systems including foreign materiel, telecommunications/network infrastructure, and industrial systems as well as general reverse engineering labs. The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges.

Odenton, MD8 days ago

$154,050–$278,475

Bachelor's degree in a relevant technical discipline and 15 years of overall related experience in military operational planning, with a proven track record of success in a joint, multi-domain environment or Master’s degree with 10 years of prior relevant experience. Compose and disseminate orders and directives (OPORDs, FRAGORDs, etc.) that address complex policy and doctrinal issues, such as dual chains of command, and direct maneuver and effects across National, Joint, and internal operational environments.

New!

Laurel, MD4 days ago

$100,000–$245,000

Experience with (1) Static Analysis tools such as Coverity and Klockwork, (2) Dynamic Analysis tools such as Valgrind, libFuzzer, and Java Pathfinder, (3) Symbolic Execution Engines such as KLEE and angr, (4) Model Checkers such as TLA+ and SPIN, (5) SMT Solvers such as Z3, CVC5 and MathSAT (6) other Automated Theorem Provers such as ACL-2 and GnatProve, (7) Interactive Theorem Provers such as Lean and Rocq, and any other formal methods tools. Experience with formal methods tools and techniques, such as language safety properties, symbolic execution, abstract interpretation, model checking, automated and interactive theorem proving, programming language analysis and design, type theory, static source code analysis, and formal logic.

New!

Chantilly, VA1 day ago

Experience with any of the following tools: Grafana, Prometheus, influxdb, Postgres, CDK (Cloud Development Kit), Cloud formation, Ansible, GIT (Global Information Tracker), Active Directory, Networking, GRE (Global Accelerator Resolvers & Endpoints), EKS (Elastic Kubernetes Service), RDS (Relational Database Service), Lambda, IAM (Identity and Access Management). Tool familiarity: Grafana, Prometheus, influx DB, Postgres, CDK (Cloud Development Kit), Cloud formation, Ansible, GIT (Global Information Tracker), Active Directory, Networking, GRE (Global Accelerator Resolvers & Endpoints), EKS (Elastic Kubernetes Service), RDS (Relational Database Service), Lambda, IAM (Identity and Access Management).

New!

Herndon, VA1 day ago

With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. L3Harris Technologies is an agile global aerospace and defense technology innovator, delivering end-to-end solutions that meet customers’ mission-critical needs.

New!

Chantilly, VA1 day ago

$161,500–$300,500 Per Year

Enterprise Integration: Engineer and integrate cutting-edge capabilities, seamlessly merging legacy and emerging technologies to deliver robust mission solutions across complex government and DoD environments. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

New!

Springfield, VA1 day ago

The ideal candidate demonstrates strong leadership, technical depth in threat-informed engineering, and the ability to integrate Mission Protection requirements into operational planning, system architecture, and lifecycle activities. The selected candidate will apply operational security (OPSEC), counterintelligence, cyber defense, and threat analysis principles to protect critical systems and ensure the survivability and resilience of U.S. assets in contested and degraded environments.

New!

Chantilly, VA1 day ago

The ideal candidate will have experience with systems modeling in tools like Cameo, microservice architecture and its application in software systems, and the ability to work collaboratively with cross-functional teams to deliver scalable and secure cloud solutions. Graduate Degree and a minimum of 4 years of prior related experience in Computer Science, Information Technology, Systems Engineering, Software Engineering or a related field.

New!

Chantilly, VA1 day ago

$135,000–$250,500 Per Year

This team is at the forefront of satellite command and control systems, leveraging web technologies, distributed computing, sophisticated cloud technologies, frameworks, and cutting-edge capabilities. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

New!

Herndon, VAToday

$184,000–$341,000 Per Year

Key responsibilities include developing trusted relationships with internal and external customers, ensuring exceptional execution of development and production programs, and partnering closely with Business Development and Capture teams to shape new opportunities and define competitive, winning solutions. The leader will manage and expand our Autonomous Capabilities portfolio, including Torpedo Tube Launch and Recovery (TTLR) programs, and our Electrical & Propulsion System Integration (EPSI) programs such as T-AGOS, the Ship-to-Shore Connector, IVER 4-900, and related efforts.

New!

Herndon, VA1 day ago

$135,000–$250,500 Per Year

In addition to technical contributions, this position supports the day‑to‑day activities of the Software Engineering Group by providing technical guidance, assigning tasks, participating in complex engineering efforts, reviewing and approving formal documentation, and estimating labor, tools, and other resources to meet budget and schedule commitments. Ability to independently contribute to software requirements development, software testing and integration, and the creation of both application‑level and embedded C/C++ code on Windows-based and Linux‑based systems, including GUI and system‑control development.

New!

Herndon, VA1 day ago

$92,500–$171,500 Per Year

With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. The candidate will need to work independently to resolve a wide range of engineering problems, requiring collaboration with all required disciplines (mechanical, optical, electrical, software, etc.).

New!

Herndon, VA1 day ago

$97,000–$207,500 Per Year

In addition to technical contributions, this position supports the day‑to‑day activities of the Software Engineering Group by providing technical guidance, assigning tasks, participating in complex engineering efforts, reviewing and approving formal documentation, and estimating labor, tools, and other resources to meet budget and schedule commitments. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

New!

Springfield, VA1 day ago

The successful candidate will support a high performing team of Government and Contractor professionals by testing software releases to ensure they function correctly, documenting failed test cases, and documenting any changes or updates needed to existing procedures. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

New!

Herndon, VA1 day ago

The successful ACE will engage with customer, engineering, operations, and management personnel to define and document the customer’s mission needs, CONOPS and requirements; perform trade studies; engage L3Harris Subject Matter Experts (SMEs) to architect an affordable solution carrying acceptable risk; and provide technical leadership to capture and proposal efforts. The role requires demonstrated leadership across multiple disciplines, with significant expertise in model-based design and operations for large scale networks integrating multiple technologies (terrestrial, radio, satellite) and system life-cycle sustainment.

McLean, VA10 days ago

Architect and deliver end‑to‑end AI/ML solutions on Google Cloud using Vertex AI (Workbench, Pipelines, Training, Model Registry, Online/Batch Prediction, Feature Store, Model Monitoring) and Gemini/LLM services—optimized for performance, cost, and maintainability. Proven experience architecting robust data ingestion, processing, and transformation workflows using Dataflow, Data Fusion, Dataproc, BigQuery, and Looker and integrating these platforms with Vertex AI for model training, deployment, and inference.

Washington, DC8 days ago

$131,300–$237,350

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. Serve as a People Leader for personnel supporting the Firewall Task Area:Serve as the focal point for all firewall tasks, operations, projects, and assessments.

Laurel, MD11 days ago

$100,000–$245,000

The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.

Laurel, MD11 days ago

$125,000–$290,000

This individual will be instrumental in strengthening the Branch’s technical excellence, advancing strategic core competencies, and mentoring high-performing staff to develop and deliver innovative, mission-relevant capabilities aligned with AMDS strategic intent. The successful candidate will be a highly respected member of the DOW community with demonstrated technical depth, systems engineering rigor, and the ability to lead complex, high-impact engineering efforts.

Alexandria, VA10 days ago

Full-time
Employee

You will utilize Splunk and the Machine Learning Toolkit (MLTK) to provide predictive analytics and automated incident response, ensuring the high availability of mission-essential infrastructure. Key Responsibilities: Architect and maintain Splunk AIOps solutions across unclassified and classified enclaves to provide real-time situational awareness.

Arnold, MD8 days ago

Remote

This role is ideal for a cybersecurity professional with experience in modern cyber risk management and securing enterprise systems, particularly within a shared Electronic Health Records (EHR) environment between the Department of Defense (DoD) and the Department of Veterans Affairs (VA). Utilize hands-on experience with cybersecurity tools, network topologies, intrusion detection systems, PKI, and secured networks to assess and mitigate risks.

New!

Germantown, MD5 days ago

$100,000–$150,000 Per Year

6 – 8 years+ experience designing, developing, testing, and maintaining custom Jira solutions, software development, particularly with Java, JavaScript, Relational databases (SQL and SQL Managed Instance). Senior Applications Developer, highly proficient in leading and independently maintaining, developing, testing and delivering high quality, enterprise-wide solutions.

Alexandria, VA8 days ago

$131,300–$237,350

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. Through the J6 Penetration Handling, Incident, System Health (PHISH) support services task order on the GSM-O contract, we provide IT products, services and solutions to the Pentagon and other DoD offices and agencies for them to meet mission and business requirements.

Washington, D.C.8 days ago

$80,000–$128,000 Per Year

The ideal candidate will serve as a senior escalation point for complex security incidents, lead advanced threat‑hunting operations, and drive the maturation of detection capabilities across the Microsoft security ecosystem. • Minimum 3 years of experience implementing and managing Microsoft Defender solutions (Defender for Endpoint, Defender for Identity, Defender for Office 365, and/or Defender for Cloud).

New!

Vienna, VAToday

Ability to provide technical assistance and support over the phone; good phone skills, professional demeanor, and previous customer service experience strongly desired. Proficient with Microsoft Office Applications, and experience working in a home office setting, as well as the ability to train end users on frequently asked technical issues.

New!

Vienna, VAToday

New!

Vienna, VAToday

Mclean, VA30+ days ago

Full-time

Support all Cybersecurity SME functions required by CPSS and APM General Support System, including coordination with OIT IAD to ensure compliance with all TSA and DHS guidance. Hive Group, a HUBZone-certified SDVOSB and multiple award-winning organization, delivers innovative solutions to address complex, mission critical program challenges for the federal government.

New!

Washington D.C.5 days ago

$120,000–$150,000 Per Year

Astrion has worked extensively Program Executive Office Integrated Warfare Systems Engineering Support Services (PEO IWS ESS) Cyber Contract where it has earned a reputation for on-time delivery of high-quality cyber support tailored to the needs of its clients. Astrion has an exciting opportunity for a Senior-Level Cybersecurity Engineer located at the Program Executive Office of Integrated Warfare Systems Contract in Washington Navy Yard, Washington, DC.

Baltimore, MD30+ days ago

This position serves as a subject matter expert on all aspects of cyber security engineering and centralized cyber security service development participates in cross functional teams as a cyber security engineer. Roles and Responsibilities: Serve as a core contributor on multi-disciplinary project teams to improve the State cybersecurity services/solutions and respective implementation, including requirements development.

Chantilly, Virginia13 days ago

$146,000–$234,000 Per Year

Experience engineering Cyber Security solutions using Cloud Based Technology such as: Service Orientated Architecture (SOA), On-demand self-service, Broad network access, Resource pooling, Rapid elasticity, Measured Service, Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). Qualifications: Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan.

Bethesda, MD30+ days ago

Full-time

Design, configure, implement, troubleshoot, and maintain all security platforms and their associated software, such as firewalls (Security Groups), intrusion detection/intrusion prevention, anti-virus/malware (HBSS), cryptography systems (Vormetric), SIEM (Splunk), and MDM. The Cyber Security Engineer must display an excellent understanding of technology and utilization of Firewalls (Security Groups), VPNs, Data Loss Prevention (DPS), IDS/IPS, Web-Proxy, Security tools, and Security Audits.

Herndon, VA30+ days ago

Basic knowledge of or hands on experience with: • Performing Cybersecurity activities in support of software and system requirements, design, development, testing, and sustainment. Must have DoD 8570/8140 approved certification such as CompTIA Security+, ISC2 CISSP, or equivalent.

Chantilly, VA30+ days ago

Conduct hands-on forensic reviews of devices, including laptops and mobile devices, using open source or commercial forensic tools such as EnCase, FTK, X-Ways, Magnet IEF, or BlackLight. Handle and image various types of evidence from Solid State Drives (SSD), Hard Disk Drives (HDD), Thumb Drives, Volatile Memory, or Compact Disks.

Washington, DC30+ days ago

As a mission-driven healthcare organization, Howard University Hospital relies on secure, resilient, and high-performing technology systems to support patient care, clinical operations, and enterprise services. Working across on-premises, hybrid, and cloud environments, the Senior Cybersecurity Engineer helps ensure the hospital’s technology environment remains secure, compliant, and resilient against emerging threats.

Chantilly, VA25 days ago

The Principal Cyber Security Engineer will leverage their strong technical background and knowledge to support the Sponsor’s system accreditation efforts, to include creating Body of Evidence (BOE) documentation, responding to/implementing/documenting required controls, and completing required tasks/actions. + Deploying solutions to proactively mitigate cyber threats to customer networks while collaborating with cross-functional teams to ensure security and performance requirements.

Herndon, VA30+ days ago

You will collaborate with analysts, stakeholders, and internal teams to ensure comprehensive cyber defense and deliver high-quality solutions that meet client needs and exceed security objectives. Altus Consulting is seeking a skilled Cyber Security Engineer to analyze, design, and implement security solutions across various client environments.

New!

Herndon, VA4 days ago

$175,000–$260,000

Investigate and analyze all data sources, to include Internet, Sponsor Community reporting, security events, firewall logs, forensic hard-drive images, and other data sources to identify malware, misuse, unauthorized activity or other cyber security related concerns and report this immediately to the Sponsor. Leading Path is an award-winning Information Technology and Management Consulting firm focused on providing solutions in process, technology, and operations to our government and Fortune 500 clients.

Washington, Washington, DC30+ days ago

$115,000–$195,000 Per Year

Comprising over 125 personnel, the Integrated Warfare Systems Group (IWSG) delivers expertise in program and project management, acquisition and contracting, systems and digital engineering, software development, test and evaluation, sustainment and life cycle management, cybersecurity, international/Foreign Military Sales, strategic communications, and IT services. These capabilities support more than 100 Above Water Sensor, Undersea, and Combat System programs and projects within the Navy’s Program Executive Office for Integrated Warfare Systems (PEO IWS), as well as clients in PEO Ships, the Naval Surface Warfare Center, Dahlgren Division (NSWCDD), and the Office of Naval Research (ONR).#FC #Dice.

Alexandria, VA30+ days ago

If you are an individual with a disability, or have known limitations related to pregnancy, childbirth, or related medical conditions, and would like to request a reasonable accommodation for any part of the employment process, please contact us at job-assist@akima.com or 571-353-7053 (information about job applications status is not available at this contact information). At Tuvli, the work you do every day makes a difference in the lives of our 15,000 Iñupiat shareholders, a group of Alaska natives from one of the most remote and harshest environments in the United States.

Washington, Washington, DC30+ days ago

Develop automation scripts for security monitoring and incident response tasks using tools like Terraform, Ansible, or cloud-native automation tools and implement and maintain security tools and technologies that enhance the overall security posture such as Prisma Cloud CSPM (Cloud Security Posture Management) platform. Experience in assisting responses to external audits, penetration tests, vulnerability assessments, recommending and coordinating application fixes, patch management, risk assessments, and implementing security procedures in the event of a security breach.

Fairfax, VA30+ days ago

$85,000–$125,000

Work experience and knowledge in; network monitoring, and intrusion detection using host-based and network-based intrusion detection systems (IDS) and log management applications; testing, installing, patching, and upgrading computer hardware and operating systems (Windows, and UNIX). Senior Positions require a minimum of 6 years’ experience and Intermediate Positions require a minimum 4 years of experience, in Information System Security, Cyber Security, Computer Forensics, or Insider Threat.

Chantilly, VA25 days ago

The Senior Splunk Cyber Security Engineer will leverage their strong technical background and knowledge to support the Sponsor’s system accreditation efforts, to include creating Body of Evidence (BOE) documentation, responding to, implementing, and documenting required controls, and completing required tasks and actions. + Deploying and managing all supported and unsupported Splunk Add-ons required for specific data sources and performing integrations via API.

New!

Springfield, VAToday

You'll work closely with other system engineers, administrators, and program teams to ensure systems are built, assessed, and operated in compliance with DoD and NIST requirements. From managing RMF and ATO packages to driving vulnerability remediation and system hardening, this role is central to maintaining secure, mission-ready systems throughout their lifecycle.

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Cyber Security Jobs in Greenbelt, MD

Jobs

Cyber Security LeadDunhill Professional Search

Reverse Engineer / Cyber Capability EngineerJohns Hopkins Applied Physics Laboratory (APL)

Senior Reverse Engineer / Cyber Capability EngineerJohns Hopkins Applied Physics Laboratory (APL)

Cyber Operations Planning SMELeidos

Formal Verification and Software Assurance EngineerJohns Hopkins Applied Physics Laboratory (APL)

Specialist, Software Engineering (Service Reliability Engineer)L3Harris Technologies

Specialist, Software Engineer (Embedded Software)L3Harris Technologies

Scientist, Software EngineerL3Harris Technologies

Lead, Systems Engineer - Mission ProtectionL3Harris Technologies

Specialist, Systems EngineerL3Harris Technologies

Lead, Software EngineerL3Harris Technologies

Director, Program ManagementL3Harris Technologies

Lead Software EngineerL3Harris Technologies

Specialist, EO/IR Systems Engineer (Top Secret Clearance)L3Harris Technologies

Software Engineering - Various LevelsL3Harris Technologies

Senior Specialist, Systems Engineer - User Acceptance TesterL3Harris Technologies

Senior Scientist, Systems Engineer (Melbourne, FL & Herndon, VA)L3Harris Technologies

Senior Google AI EngineerCredence

Lead Firewall EngineerLeidos

Reverse Engineer for RF SystemsJohns Hopkins Applied Physics Laboratory (APL)

A4 Non-Kinetic Warfare Branch Chief EngineerJohns Hopkins Applied Physics Laboratory (APL)

Splunk ArchitectCompany Confidential

Joint Cybersecurity AnalystAxelon Services Corporation

Applications DeveloperDunhill Professional Search

SOC Technical LeadLeidos

Tier 2/3 Cyber Security Analyst / Microsoft Sentinel/Microsoft DefenderPeraton

Jr Cyber Security EngineerChenega Corporation

Senior Cyber Security EngineerChenega Corporation

Mid Cyber Security EngineerChenega Corporation

Cyber Security AnalystHive Group LLC

Senior Cyber Security EngineerAstrion

Cyber Security Engineer-Baltimore, MD (Hybrid)Georgia Tek Systems

Expert Level Cyber Security EngineerPeraton

Cyber Security EngineerHoplite Solutions LLC

Cyber Security EngineerCinteot

Senior Cyber Security AnalystCore One

Senior Cyber Security EngineerHoward University Hospital

Principal Cyber Security EngineerManTech

Cyber Security EngineerAltus Consulting Corp

Bid Role - Cyber Security Engineer (starts in 8-10 weeks) - TS/SCI w/ PolyLeading Path Consulting

Cyber Security Analyst/EngineerSystems Planning and Analysis

Cyber Security Analyst - SECRET Clearance RequiredAkima

Cyber Security Engineer SMEAbacus Technology

Incident Response and Cyber Security OPSSecured Cyber

Senior Splunk Cyber Security EngineerManTech

Cyber Security EngineerNelson Intelligence Solutions

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