3,515 Results for

Senior Security Jobs in Oak Hill, VA

Jobs

New!

Columbia, MD1 day ago

$150,000–$200,000

This role provides oversight and enforcement of enterprise security policies while guiding ISSO teams across secure environments. Clearance Required: Active TS/SCI with Full Scope Polygraph (Maryland Customer).

New!

Alexandria, VAToday

$135,000–$165,000

Overview: GovCIO is currently hiring for a Senior Information Systems Security Engineer to support cybersecurity, compliance, and risk management activities supporting the U.S. Coast Guard (USCG). Responsibilities: As a Senior Information Systems Security Engineer, you will serve as a senior technical contributor for the cybersecurity posture, compliance framework, and risk management initiatives.

New!

Bethesda, MDToday

$108,310–$149,027

Strategically plan, architect, design, engineer, develop, test, implement, modernize, and enhance the functional capabilities, capacity, and performance of the NIH Network and TIC Services in alignment with NIH future state architecture objectives. Overview: GovCIO is currently hiring for a Senior Network Architect/SME in Enterprise Level Facilities Security and Industrial Control Systems and Networks for our NIH-CIT proposal.

New!

Falls Church, VA3 days ago

Experience: 8+ years in a technical Cybersecurity Engineering role, with at least 4 years focused on large-scale cloud or hybrid environments, and a portfolio of projects where AI or Machine Learning was directly applied to solve security or operational scaling problems. • API-First Automation: Deep expertise in building "glue code" that connects disparate COTS and custom applications via secure, automated APIs to streamline cross-functional business activities.

New!

Washington, DC6 days ago

This practice advises sophisticated global clients—including asset managers, sovereign wealth funds, multinational companies, and major financial institutions—on the full spectrum of U.S. national security regulatory regimes. Substantial experience providing compliance advice related to economic sanctions, export controls, and outbound investment restrictions, including matters involving OFAC, EAR/BIS, ITAR/DDTC, and OGT .

New!

Arlington, VA5 days ago

Global Industrial Cyber Security Professional (GICSP), GIAC Critical Infrastructure Protection (GCIP), GIAC Response and Industrial Defense (GRID), (ISC)2 Certified Information Systems Security Professional (CISSP), Certified Operational Technology Cybersecurity Professional (TÜV) or similar cyber security certifications preferred. As part of our strategic plan, we aim to assist members in meeting workforce challenges-including attracting and retaining a diverse, equitable, and inclusive workplace culture-through offering educational programs, developing resources, and serving as a platform for the public power community to exchange ideas and best practices.

New!

Columbia, MD1 day ago

$180,000–$230,000

She Recruits is representing a Full-Time Senior ISSE to support enterprise-level cybersecurity architecture and Risk Management Framework (RMF) initiatives. This role provides technical security engineering guidance across complex systems and ensures compliance with government security frameworks.

New!

Washington, DC4 days ago

Strong understanding of security concepts and technologies related to Identity and Access Management (IAM), security engineering, network security design, security operations, security architecture, general engineering processes, cloud security, data loss protection, zero trust, DevSecOps and vulnerability management. Proven ability to provide technical security consultation and advisory services with a proactive approach to identifying potential issues, raising questions, and engaging in open dialogue with team members and stakeholders to ensure security objectives are met.

New!

Alexandria, VAToday

$82,550–$149,225

Conduct ISR/CPSO duties in the following areas: Management, maintenance and accreditation preservation of Open Storage Spaces (OSS) and Sensitive Compartmented Information Facilities (SCIFs).Processing of Prime and Sub DD254s; escorting uncleared personnel/visitors; update and maintain facility checklists; conduct routine/annual inspections; maintain databases; respond to emerging security-related issues; process outgoing visit requests and validate incoming visit requests; • Conduct Personnel Security processing actions including requesting, reviewing, approving, and submitting clearances packages up to and including SCI nomination packages in accordance with customer requirements. 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.

New!

Washington, DC4 days ago

Strong understanding of security concepts and technologies related to Identity and Access Management (IAM), security engineering, network security design, security operations, security architecture, general engineering processes, cloud security, data loss protection, zero trust, DevSecOps and vulnerability management. • Proven ability to provide technical security consultation and advisory services with a proactive approach to identifying potential issues, raising questions, and engaging in open dialogue with team members and stakeholders to ensure security objectives are met.

McLean, VA9 days ago

We are looking for self-motivating employees who are proficient in and can lead all aspects of the pre-award capture lifecycle in areas of Defense and Military, to include opportunity identification, research, teaming conversations, negotiations, and proposal leadership (working closely with a proposal team). Must be experienced with leading task order capture efforts for one or more large-scale Defense and Military IDIQ contracts, to include developing overall IDIQ capture strategies, creatively and dynamically organizing efforts for maximum efficiency, and driving actions and priorities.

New!

Herndon, VA3 days ago

$125,000–$175,000 Per Year

Typical duties include writing technical reports, conducting surveys, performing calculations, overseeing, and completing power, telemetry, and telecommunications designs, conducting research and development, systems integration, testing, hands-on assembly, and PLC programming. Seeking a Sr Electrical Engineer to serve as the electrical discipline team leader for the project, directing other engineers and designers as required, provide electrical design expertise and leadership for the entire project, from initial survey through final inspection.

New!

Alexandria, VA3 days ago

You will work directly with customer stakeholders across high-visibility DoD, federal, or regulated environments to implement scalable, secure, and high-performing platforms. CALIBRE Systems inc., an employee owned mission focused solutions and digital transformation company, is looking to fill multiple slots in the Washington, DC area.

New!

Laurel, MD1 day ago

$58,700–$146,300

You will manage a portfolio of work that will include the full procurement life cycle of subcontractor services by guiding technical staff through the acquisition process, including pre-solicitation planning, review and critique of the statements of work (SOW), evaluation of contractor proposals, conducting negotiations, awarding contracts, managing contractor performance, and ultimately contract closeout. We are seeking a Senior Subcontracts Manager to help us manage all contractual matters including negotiations, resolving issues, executing agreements and overseeing subcontracts.

New!

MONTGOMRY VLG, MD4 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.

New!

Gaithersburg, MD4 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.

Arlington, VA30+ days ago

$175,000–$190,000 Per Year

Integrated Data Services (IDS) is seeking a Senior Program Manager to lead the deployment and adoption of the Comprehensive Cost and Requirements (CCaR) System across the Department of the Army to include the Army Secretariat, Army Staff, Major Commands, and Subordinate Commands. This operates at the intersection of financial management, enterprise software, and senior leader decision-making, directly enabling Army leadership to transition from static, manual processes to real-time, data-driven decision advantage.

New!

Laurel, MD1 day ago

$100,000–$245,000

Demonstrable ability to lead complex infrastructure or monitoring projects from inception through implementation, including planning, execution, and stakeholder communication; team leadership or mentoring experience strongly preferred. 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.

New!

Bethesda, MDToday

$85,000–$99,403

Proactively monitor growth trends of hosted systems such as Biowulf supercomputer and work with Network Architecture and system owners to proactively recommend resource adjustments as part of our overall Capacity Planning approach to ensure availability of required resources. Qualifications: High School with CCIE (Data Center) certification and 5 years of equivalent Data Center operational experience OR CCNP (Data Center) certification and 10 years of equivalent Data Center operational experience.

New!

Laurel, MD1 day ago

$105,000–$245,000

Collaborate with our software development teams on improving our customized tools, including designing efficient representations for large datasets, testing accurate interactions across interdependent algorithms, and automating production analysis pipelines. 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.

New!

Laurel, MD1 day ago

$105,000–$290,000

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. The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges.

New!

McLean, VA6 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.

New!

McLean, VA5 days ago

$165,000–$200,000

Our AI, cloud, cyber, and modernization solutions save agencies thousands of hours, safeguard national security, and strengthen health and humanitarian missions worldwide. Strong understanding of agentic AI including Transformers, Model Context Protocol, Agent2Agent Protocol, LangGraph, and other modern frameworks.

New!

Laurel, MD1 day ago

$100,000–$245,000

Our engineers and analysts apply a wide-range of disciplines such as sensor and data fusion, signal and image processing, operations research, applied physics, and artificial intelligence to build systems that automatically or autonomously orchestrate sensors, process data into information, and make intelligent inferences and predictions about complex threats and environments. Have domain knowledge in ISR processes, systems, platforms, and sensors used by the US military and intelligence community; Navy and Air Force kill chain concepts; targeting, C2, and mission planning processes and tools; threat systems, weapon platforms and systems, and communications networks.

New!

Washington, DC5 days ago

$145,000–$155,000 Per Year

This role is positioned at the intersection of mission execution and strategic innovation, converting classified government requirements into meaningful member engagement strategies that connect current and prospective members with valuable opportunities and ideal teaming partnerships. Working within secure environments, this individual will serve as a key conduit between government objectives and industry capabilities, driving collaboration and delivering mission-focused solutions with urgency.

New!

Manassas, VA4 days ago

$120,000–$150,000 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. Our team specializes in securing critical systems through authorization management, risk mitigation strategies, vulnerability assessment processes, and cybersecurity engineering practices designed to support evolving compliance and operational requirements.

New!

Laurel, MD1 day ago

$105,000–$290,000

The Electro Optical Seeker and Infrared Systems group (A1F) of the Air and Missile Defense Sector (AMDS) is seeking a Senior Embedded Systems & Hardware-in-the-Loop Engineer to lead the architecture and implementation of complete embedded systems, custom electronics hardware, FPGA firmware, real-time embedded software, and sophisticated HWIL test systems. 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.

Washington DC, DC18 days ago

Full-time
Employee

Web Development Skills: Proficiency in PHP, MySQL, HTML, CSS, and JavaScript; working knowledge of additional languages and frameworks (.NET, Python, Ruby, Swift, SQL Server). Modern API Frameworks: Strong experience building scalable APIs using Node.js, FastAPI (Python), Bun, or similar modern backend technologies.

Manassas, VA19 days ago

Full-time
Employee

Employment Type: Contract-to-HireJob SummaryWe are seeking an experienced Senior OT Network Architect to lead the design, implementation, and modernization of Operational Technology (OT) network infrastructure in a mission-critical industrial environment. Develop network segmentation strategies using ISA/IEC 62443 zones and conduits models.

New!

Washington, DC2 days ago

$50.88–$50.88 Per Hour

Lead enterprise anti-virus operations supporting SEC workstations and servers across the agency environment, including centralized policy administration, secure deployment, configuration, signature/DAT and engine updates, and scheduled scanning. Serve as escalation point for complex malware and endpoint security incidents, driving rapid restoration and durable corrective actions.

Washington, DC10 days ago

The Senior Communications Manager oversees public-facing content, stakeholder engagement, and digital content strategy for Refugee Resettlement and Unaccompanied Alien Children (UAC) programs. This requirement provides critical mission support across various technical, program management, and administrative functions to assist ORR in its mission to promote the health, well-being, and stability of refugees and unaccompanied children.

Washington, DC10 days ago

The Senior Grants & Monitoring Manager oversees grants administration, monitoring and evaluation, compliance, and site visit support for Refugee Resettlement and Unaccompanied Alien Children (UAC) programs. This requirement provides critical mission support across various technical, program management, and administrative functions to assist ORR in its mission to promote the health, well-being, and stability of refugees and unaccompanied children.

Washington, DC10 days ago

The Senior Training and Technical Assistance Manager oversees curriculum development, stakeholder support, and knowledge management for Refugee Resettlement and Unaccompanied Alien Children (UAC) programs. This requirement provides critical mission support across various technical, program management, and administrative functions to assist ORR in its mission to promote the health, well-being, and stability of refugees and unaccompanied children.

Washington, DC9 days ago

The Senior Data and Systems Manager oversees data validation, data analytics, help desk and systems support for Refugee Resettlement and Unaccompanied Alien Children (UAC) programs. This requirement provides critical mission support across various technical, program management, and administrative functions to assist ORR in its mission to promote the health, well-being, and stability of refugees and unaccompanied children.

New!

Laurel, MD1 day ago

$105,000–$290,000

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.

New!

Laurel, MD1 day ago

$105,000–$290,000

New!

Washington, DC4 days ago

$120,000–$160,000 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. This role will focus on building automation solutions within Windows 11 environments to improve operational efficiency, strengthen security posture, and enhance the overall end-user experience.

New!

Gainesville, VAToday

$95,000–$110,000

The Site Security Manager leads a team of site security personnel, including site managers, field training officers, and security officers, and is accountable for delivering physical security-related services at one or more assigned locations within a geographic area. The SSM reports directly to the regional security manager, works alongside other site security managers in their metro area, and manages the Security Team Manager (STM).

New!

Manassas, VAToday

$105,000–$105,000

The Campus Security Manager (CSM) leads a team of site security personnel, including site managers, field training officers, and security officers, and is accountable for delivering physical security-related services at one or more assigned locations within a geographic area. The CSM reports directly to the regional security manager, works alongside other site security managers in their metro area, and manages the Security Team Manager (STM).

New!

Manassas, VAToday

$95,000–$110,000

The Site Security Manager leads a team of site security personnel, including site managers, field training officers, and security officers, and is accountable for delivering physical security‑related services at one or more assigned locations within a geographic area. The SSM reports directly to the regional security manager, works alongside other site security managers in their metro area, and manages the Security Team Manager (STM).

New!

Fort Belvoir, VA6 days ago

INSCOM executes mission command of operational intelligence forces; conducts worldwide multi-discipline and all-source intelligence operations; delivers advanced skills training, linguist support, specialized quick reaction capabilities, and intelligence-related logistics, contracting, and communications in support of Army, Joint, and Coalition commands and the National Intelligence Community. The Senior Budget Analyst prepares, reviews, analyzes, coordinates, and maintains documentation and associated databases used in DoD resource management systems, while supporting Future Years Defense Program planning, development of transformational resource strategies, and current-year fiscal and manpower execution.

New!

Rockville, MD5 days ago

The ideal candidate will have 5+ years of relevant legal experience in an in-house legal department, law firm, or similar environment, with experience spanning some combination of board support, contract administration, legal operations, commercial contracting, and corporate paralegal work. This role provides broad-based legal support across board and committee support, routine commercial contracting, legal operations, systems management, and selected public company and intellectual property support.

New!

Laurel, MD1 day ago

$105,000–$290,000

In A5C, we develop and deploy advanced planning capabilities and solutions directly into the hands of the warfighter, empowering them to design and execute dominant defenses for maximum performance across multiple simultaneous multiple missions, multiple services, and multiple command echelon planning levels and domains. This is a unique opportunity to dive deep into both software engineering and mission planning while using your skills to design, develop, and test physics-based models for military planning tools associated with Air & Missile Defense (AMD).

New!

Laurel, MD1 day 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.

New!

Laurel, MD1 day ago

$105,000–$290,000

Evolving air and missile defense planning tools and capabilities, Developing and implementing robust software solutions to complex planning challenges, Responding to feedback from the warfighter and the analyst community, Assessing new AI and Machine Learning tools and capabilities and their applicability to military planning, and. In A5C, we develop and deliver highly capable mission planning capabilities into the hands of the warfighter so they can design defenses that enhance performance across multiple simultaneous air and missile defense missions, multiple services, and multiple command echelon planning levels.

New!

Washinfton, DC6 days ago

Perform customer T2/T3 support activities including assessment of user experience scenarios and identifying resolutions to unique user access issues for Okta integrated applications. Description: Our client is seeking a Consultant SME Senior to provide guidance to IT partners on configuration, debugging, and deployment of tools requiring Identity and Access Management (IAM) integration.

New!

Bethesda, MDToday

$149,841–$149,841

Within each of the Cisco Certifications, the following specializations are needed and listed in order of importance: Routing and Switching, Service Provider, Data Center, and Wireless OR Experience required is 8‐plus years in Network Services and a bachelor’s degree in Computer Science, Information Systems, Engineering or other related discipline. The Network Architecture Section responsibilities include: Strategically plan, architect, design, engineer, develop, test, implement, modernize, and enhance the functional capabilities, capacity, and performance of the NIH Network and TIC Services in alignment with NIH future state architecture objectives.

New!

Bethesda, MDToday

$108,310–$149,027

Strategically plan, architect, design, engineer, develop, test, implement, modernize, and enhance the functional capabilities, capacity, and performance of the NIH Network and TIC Services in alignment with NIH future state architecture objectives. Within each of the Cisco Certifications, the following specializations are needed and listed in order of importance: Routing and Switching, Service Provider, Data Center and Wireless .

New!

Bethesda, MDToday

$108,310–$149,027

Strategically plan, architect, design, engineer, develop, test, implement, modernize, and enhance the functional capabilities, capacity, and performance of the NIH Network and TIC Services in alignment with NIH future state architecture objectives. Within each of the Cisco Certifications, the following specializations are needed and listed in order of importance: Routing and Switching, Service Provider, Data Center and Wireless .

New!

Bethesda, MDToday

$108,310–$149,027

Strategically plan, architect, design, engineer, develop, test, implement, modernize, and enhance the functional capabilities, capacity, and performance of the NIH Network and TIC Services in alignment with NIH future state architecture objectives. Within each of the Cisco Certifications, the following specializations are needed and listed in order of importance: Routing and Switching, Service Provider, Data Center and Wireless .

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Senior Security Jobs in Oak Hill, VA

Senior Information Systems Security Officer - ( TS/SCI FS Poly Required) Gables Search Group

Senior Information Systems Security Engineer Govcio LLC

Senior Network Architect/SME in Enterprise Facilities Security and Industrial Control Systems Networks Govcio LLC

Sr Cloud Security Engineer PlanIT Group

National Security Senior Associate Attorney (DC) Pernini Recruiting Company

Security Program Senior Manager American Public Power Association

Senior ISSE (Information Systems Security Engineer) - (TS/SCI FS Poly Req) Gables Search Group

Sr. Cloud Security Specialist (AWS) System One

Senior Industrial Security Representative (ISR)/Contractor Program Security Officer (CPSO) Leidos

Senior Cloud Security Specialist (API) - onsite System One

Senior Capture Manager Credence

Sr Electrical PE Jobot

Senior Consultant - VMware Cloud Foundation (VCF) Design and Deploy Calibre Systems

Sr. Subcontracts Manager Johns Hopkins Applied Physics Laboratory (APL)

Senior Software Engineer (C++ / Java) Jobot

Sr. Software Engineer Jobot

Army - Senior Program Manager (Arlington, VA) Integrated Data Services

Senior Systems & Monitoring Administrator Johns Hopkins Applied Physics Laboratory (APL)

Senior Network Engineer; Datacenter Operations Govcio LLC

Senior AFSIM Analyst Johns Hopkins Applied Physics Laboratory (APL)

Senior Artificial Intelligence Researcher Johns Hopkins Applied Physics Laboratory (APL)

Senior Google AI Engineer Credence

Senior AI Technical Lead Credence

Senior Engineer / Analyst for ISRT & BMC2 Applications Johns Hopkins Applied Physics Laboratory (APL)

Senior Manager, Member Experience Sparks Group

Senior RMF Cybersecurity Engineer (Navy) Jobot

Senior Embedded Systems & Hardware-in-the-Loop Engineer Johns Hopkins Applied Physics Laboratory (APL)

Senior Drupal Architect Company Confidential

Senior OT Network Architect Census InfoTech Inc

INFO SECURITY ANALYST IV (AntiVirus Engineer-Senior) System One

Senior Communications Manager Credence

Senior Grants & Monitoring Manager Credence

Senior Training and Technical Assistance Manager Credence

Senior Data and Systems Manager Credence

Senior Search Engineer (Enterprise Search) Johns Hopkins Applied Physics Laboratory (APL)

Senior Applied Chemist Johns Hopkins Applied Physics Laboratory (APL)

Senior PowerShell Engineer (Secret Clearance) Jobot

Site Security Manager Securitas

Campus Security Manager Securitas

Site Security Manager (M) Securitas

Senior Program Analyst - INSCOM Credence

Senior Corporate Paralegal/Legal Contracts Specialist MaxCyte, Inc

Senior Software Engineer Johns Hopkins Applied Physics Laboratory (APL)

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

Senior Software Engineer/AI Practitioner Johns Hopkins Applied Physics Laboratory (APL)

SME Consultant Sr. (Okta) PlanIT Group

Subject Matter Expert Level III / Senior Network Architect Govcio LLC

Senior Network Architect/SME in Service Provider Backbone, Enterprise Level LAN/WAN, QoS and Traffic Engineering Govcio LLC

Senior Network Architect-SME LAN/WAN, and DW/DM Govcio LLC

Senior Network Architect/SME in Enterprise Level Data Center and Cloud Govcio LLC

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