8,521 Results for

Senior Security Jobs in Annandale, VA

Jobs

New!

Falls Church, VA1 day 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!

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.

New!

Washington, DC4 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!

Washington, DC3 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.

Alexandria, VA10 days ago

$230,000–$270,000 Per Year

The ideal candidate will bring deep hands-on experience designing, securing, optimizing, and troubleshooting complex network environments while also serving as a technical leader and trusted advisor to government stakeholders. The Senior Network Engineer / Security SME will provide expert-level network engineering, security architecture, and operational support across enterprise and tactical networks.

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.

Herndon, VA9 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.

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.

New!

Manassas, VA1 day 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.

West McLean, VA9 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!

Arlington, VA4 days ago

Desired: Multiple cloud platform certifications at professional level (AWS Solutions Architect Professional, Azure Solutions Architect Expert, or Google Cloud Professional Cloud Architect), Kubernetes CKA/CKAD, Docker Certified Associate, specialized security certifications. Bachelor's degree in Computer Science, Software Engineering, Information Technology, Cybersecurity, Data Science, Information Systems, or related technical field from an ABET accredited or CAE designated institution; Master's degree preferred.

New!

Alexandria, VA1 day 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.

McLean, VA7 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!

Washington, VAToday

$165,000–$170,000 Per Year
Full-time

Tasks include managing cloud system operations in development, testing, government testing, and government production environments, as well as integrating new systems into the AWS cloud infrastructure and managing the end-to-end project lifecycle. The role will be pivotal in interacting with Government stakeholders, leading system operations and integration efforts, and ensuring successful project completion on time and within scope.

New!

Washington, DC3 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 DC, DC30+ 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.

Arlington, VA10 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. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

New!

Sterling, VA1 day ago

This role is ideal for a hands-on engineer with strong PLC/HMI programming experience who enjoys field work, troubleshooting complex systems, and traveling to customer sites throughout the U.S. and occasionally internationally. Responsibilities: • Program, troubleshoot, and commission PLC- and HMI-based control systems utilizing RSLogix 500, RSLogix 5000, Studio 5000, and FactoryTalk View platforms.

New!

Washington, DC3 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.

Alexandria, VA10 days ago

$131,300–$237,350

The Digital Modernization Sector at Leidos is seeking a Sr Azure Virtual Desktop Engineer to support cloud modernization initiatives for the United States Coast Guard (USCG) at Command, Control, Communication, Computer, Cyber, and Intelligence Service Center (C5ISC) in the Alexandria, VA area. 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!

McLean, VA2 days ago

$130,000–$150,000

Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to: the individual’s skill sets, experience and training; licensure and certification requirements; office location and other geographic considerations; other business and organizational needs. Vaco by Highspring values a diverse workplace and strongly encourages women, people of color, LGBTQ+ individuals, people with disabilities, members of ethnic minorities, foreign-born residents, and veterans to apply.

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.

New!

Washington, DC3 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!

Dulles, VAToday

$33–$43.41 Per Hour

Ability to read and speak the English language sufficiently to understand traffic signs, communicate with traffic safety officials and to respond to official inquiries and directions in accordance with FMCSA enforcement guidance. Actual pay is determined by several job-related factors permitted by law and relevant to the position, including, but not limited to, experience relative to the job, tenure, market level, pay at the location for this job, performance, schedule, and work assignment.

Fort Belvoir, VA8 days ago

Facilitated multiple MDA SAPCO working groups to drive policy alignment, process improvement, and inter-directorate coordination, while maintaining program record and DOD-required office files in strict accordance with DODI 5205.11. The Contractor SAP Security Officer (CSSO) – Journeyman will support our government customer by developing, implementing, and managing comprehensive protection strategies across multi-disciplined security environments.

New!

Chantilly, VA1 day ago

$18–$20

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. The Security Officer position helps maintain a safe and secure environment for our clients by actively monitoring the premises, including patrolling a variety of locations.

New!

McLean, VA1 day ago

$21–$21

New!

McLean, VA3 days ago

You’ll work with and guide a multi-disciplinary team of analysts, data engineers, developers, and data consumers in a fast-paced, agile environment. 3+ years of experience designing, developing, operationalizing, and maintaining data applications for reporting and analytics at enterprise scale.

New!

Arlington, VAToday

$63,590–$121,530 Per Year

Auto Appraiser, within defined guidelines and framework responsible for the investigation, negotiation, evaluation and appraisal of vehicle damage claims for both repairable and total loss vehicles to ensure estimate accuracy in compliance with state laws and regulations. Works various types of claims, including ones of higher complexity, and may be assigned additional work outside normal duties as needed.

New!

Washington, DC3 days ago

We're seeking a talented Platform Engineer to help architect, deploy, and manage our AWS and on-premises platforms while supporting emerging AI capabilities, modern containerized workloads, and enterprise virtualization environments. • Manage Kubernetes fleet operations across AWS EKS, on-premises Mirantis Kubernetes Engine (MKE), and VMware vSphere with Kubernetes (VKS).

Alexandria, VA10 days ago

$170,000–$240,000 Per Year

The Senior Network Engineer, Wireless SME provides expert-level engineering, architecture, and operational support across enterprise and tactical networks, with specialized responsibility for secure, enterprise-grade wireless infrastructure. Deep expertise with enterprise wireless networking, RF design, wireless LAN controllers, access point deployments, and Wi-Fi troubleshooting.

Springfield, VA26 days ago

Produce accurate, timely, and relevant GEOINT products, including reports, database remarks, baseline descriptions, graphics, maps, infographics, and briefings. HS Diploma and 10+ years of GEOINT experience OR Associate’s degree and 8+ years of experience OR Bachelor’s degree and 6+ years of experience OR Master’s degree + 6 years of experience.

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.

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!

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.

Washington, DC10 days ago

We're seeking a talented Senior Cloud Administrator to help architect, deploy, and manage our AWS platforms while supporting emerging AI capabilities and modern containerized workloads. Join our Cloud Architecture and Administration team at the forefront of secure, innovative cloud infrastructure for one of the nation's most critical institutions.

New!

Washington, DC1 day ago

$54.02–$54.02 Per Hour

This role is responsible for administering Cisco MDS and Cisco Nexus platforms, managing SAN fabric connectivity, troubleshooting performance and availability issues, supporting storage, virtualization, backup, and disaster recovery operations, and ensuring reliable, secure network services across the enterprise. The ideal candidate will have 8+ years of SAN administration experience, strong Cisco data center networking expertise, a CCNA Data Center certification (or equivalent), and the ability to support 24/7 operations, incident response, and change management activities.

New!

Washington, DC3 days ago

Demonstrated experience ensuring the reliability, scalability, and efficiency of data center operations, including servers, storage, networking, power, and environmental resource requirements. Use enterprise data center technologies to manage and operate servers, storage, networking, and power systems supporting mission-critical environments within the federal government.

New!

Washington, DC1 day ago

Manage and maintain our hybrid Exchange environment, including on-premises Exchange Server and Exchange Online (Microsoft 365). • Implement anti-spam, anti-malware, and threat protection using Microsoft Defender for Office 365.

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 .

New!

Leesburg, VA3 days ago

$70–$90 Per Hour

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Configure and customize ServiceNow including UI policies, business rules, client scripts, flows, catalog items, and update sets.

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

New!

Alexandria, VA1 day ago

You will partner with business users to gather requirements, define and design report outputs and deliver items to Production workspaces following the tenant architecture strategy and monitoring for sustainable adoption and growth. Expert knowledge of SQL, DAX and experience working with large datasets, RLS, calculation groups, and data pipelines.

New!

Fort Belvoir, VA1 day ago

$131,300–$237,350

Cross-Functional Leadership: Lead the AIOps platform initiative by acting as the primary technical liaison to existing Network Engineering, ServiceNow, and SolarWinds administration teams to establish unified telemetry 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.

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.

Quantico, VA16 days ago

Remote

This position requires at least 8+ years’ experience supporting networking for DoD Command and Control Systems such as Multisource Correlator Tracker (MSCT), Common Aviation Command and Control System (CAC2S), Air Defense System Integrator (ADSI), or Theater Battle Management Core System (TBMCS). Arcticom, LLC provides network and systems administration, enterprise architecture and resource planning, certification and accreditation, software design, programming, maintenance of telecommunications and land mobile radio equipment and systems, help desk support and IT transformation services among other services.

Alexandria, VA9 days ago

$131,300–$237,350

The Digital Modernization Sector at Leidos is seeking a dynamic Sr Appian Platform Engineer / Architect to support cloud modernization initiatives for the United States Coast Guard (USCG) at Command, Control, Communication, Computer, Cyber, and Intelligence Service Center (C5ISC) in the Alexandria, VA area. The ideal candidate will possess deep expertise in the Appian low-code platform along with hands-on experience in other low-code/no-code technologies such as ServiceNow, Microsoft Power Platform, Pega, Salesforce, Mendix, OutSystems, or similar enterprise automation platforms.

New!

Washington, DCToday

The Data Architecture, Technology, and Analytics (DATA) section is looking for an experienced detailed oriented Data Architect/Engineer who will be responsible for expanding and optimizing our data and data pipeline architecture, as well as optimizing data flow and collection for economic policy and research teams. The ideal candidate is an experienced hands-on data modeler with working knowledge of database design and administration, data pipeline building, and data wrangling who enjoys improving existing data systems and/or building them from the ground up.

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Senior Security Jobs in Annandale, VA

Sr Cloud Security Engineer PlanIT Group

Senior Information Systems Security Officer (ISSO-3) Leidos

National Security Senior Associate Attorney (DC) Pernini Recruiting Company

Sr. Cloud Security Specialist (AWS) System One

Senior Network Engineer (CCIE) – Security System One

Senior Software Engineer (C++ / Java) Jobot

Sr Electrical PE Jobot

Sr. Software Engineer Jobot

Senior RMF Cybersecurity Engineer (Navy) Jobot

Senior PowerShell Engineer (Secret Clearance) Jobot

Senior Applications Developer Bowhead / UIC Technical Services

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

Senior Capture Manager Credence

Senior Linux (8)/Windows 2022 Team Lead, AWS Cloud (Secret Clearance Eligible, CompTIA Security+ ) Loyola Enterprises Inc.

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

Senior Drupal Architect Company Confidential

Senior Software Engineer Leidos

Senior Field Engineer Sparks Group

Senior Manager, Member Experience Sparks Group

Sr Azure Virtual Desktop Engineer Leidos

Senior Python Full Stack Engineer Vaco LLC

Senior Software Engineer (SWE-3) Leidos

SME Consultant Sr. (Okta) PlanIT Group

Sr. Vehicle Maintenance Technician/DOT/CDL FedEx

Contractor SAP Security Officer – Journeyman MANTECH

Security Officer (M) Securitas

Corporate Security Officer (FM) Securitas

Senior Data Engineer - Palantir Sparks Group

Sr. Auto Appraiser USAA

Senior Platform Engineer System One

Senior Network Engineer (CCIE) – Wireless SME System One

Senior GEOINT Analyst MANTECH

Sr. Identity and Access Management (ICAM) Engineer Leidos

Sr. Application Specialist Keller North America, Inc.

Senior Systems Architect System One

Senior Cloud Administrator System One

Senior Network Storage Engineer System One

Senior VMware & Data Center Engineer System One

Sr. Exchange Online (EXO) Administrator (Systems Engineer) System One

Senior Help Desk Engineer System One

ServiceNow Developer Senior System One

Senior Contracts Manager Leidos

Sr. Application Specialist 1Britcom

Senior Power BI Developer DCS Corporation

Senior AI Ops Engineer Leidos

Senior System Administrator III Varada Consulting

Senior System Engineer ARCTICOM LLC

Sr Appian Platform Engineer / Architect Leidos

Senior Data Architect System One

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