Cybersecurity Engineer jobs in Herndon hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $197,438/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
boeing.com • HQ: Arlington, United States • Aerospace Manufacturing • Combat Aircraft • Aircraft Manufacturing • 1001-5000 employees • Est. 1916 • Trust A • Hiring 683, 211 new
HQ: Arlington, United States • Aerospace Manufacturing • Combat Aircraft • Aircraft Manufacturing • 1001-5000 employees • Est. 1916 • Trust A • Hiring 683, 211 new
Boeing is a global aerospace manufacturer and defense contractor specializing in commercial jetliners, military aircraft, satellites, and space systems. Headquartered in Arlington, Virginia, United States, the company operates across three main business divisions: Commercial Airplanes; Defense, Space & Security; and Global Services. Through aircraft engineering, defense hardware production, and worldwide fleet support, the enterprise serves commercial airlines, armed forces, and government partners across more than 150 countries.
$140k – $190k per year • Senior • 5+ years exp • In office (Herndon, United States) • Relocation • Full-Time • TS/SCI • Citizenship or vetting required • Senior
$140k – $190k per year • Senior • 5+ years exp • In office (Herndon, United States) • Relocation • Full-Time • TS/SCI • Citizenship or vetting required • Senior
amazon.com • HQ: Seattle, United States • Robotics AI • Logistics & Warehouse Robotics • Video Production • Developer Tools • Advertising • Logistics • Streaming & OTT Platforms • Cloud Platforms (IaaS & PaaS) • Marketplaces • 1-10 employees • Est. 1994 • Trust B • Hiring 15307, 1129 new
HQ: Seattle, United States • Robotics AI • Logistics & Warehouse Robotics • Video Production • Developer Tools • Advertising • Logistics • Streaming & OTT Platforms • Cloud Platforms (IaaS & PaaS) • Marketplaces • 1-10 employees • Est. 1994 • Trust B • Hiring 15307, 1129 new
Amazon is an American technology and retail conglomerate founded by Jeff Bezos in 1994 as an online bookstore and headquartered in Seattle, Washington. It operates the world's largest online marketplace together with a global logistics network, physical grocery stores and a third-party seller platform that accounts for most units sold. Amazon Web Services, launched in 2006, is the leading public cloud provider and generates the majority of the group's operating profit, while advertising, Prime Video, Alexa devices and Kuiper satellite broadband round out the business.
peraton.com • HQ: Reston, United States • Systems Integrators • Information Security • Homeland Security • National Security • 1001-5000 employees • Est. 2017 • Trust A • Hiring 923, 117 new
HQ: Reston, United States • Systems Integrators • Information Security • Homeland Security • National Security • 1001-5000 employees • Est. 2017 • Trust A • Hiring 923, 117 new
Peraton is an American national security and technology company that provides systems engineering, IT modernisation, cyber, space and communications services to defense, intelligence, homeland security, civil and health agencies of the US government. Formed in 2017 by Veritas Capital and enlarged in 2021 through the acquisitions of the federal IT and mission support business of Northrop Grumman and of Perspecta, it employs tens of thousands of people across the United States. The company is headquartered in Reston, Virginia, United States.
boozallen.com • HQ: McLean, United States • Intelligence • Management Consulting • National Security • IT Consulting & Digital Transformation • 5000+ employees • Est. 1914 • IT services • Trust A • Hiring 1495, 160 new
HQ: McLean, United States • Intelligence • Management Consulting • National Security • IT Consulting & Digital Transformation • 5000+ employees • Est. 1914 • IT services • Trust A • Hiring 1495, 160 new
Booz Allen Hamilton is an American consulting firm founded in 1914 that has spent most of the past century working for the United States government, and today derives almost all of its revenue from federal clients. It supplies technology and mission services to defence, intelligence, civil and health agencies, covering systems engineering, cyber operations, data platforms and increasingly artificial intelligence deployed inside classified environments. Headquartered in McLean, Virginia and listed on the New York Stock Exchange, it employs tens of thousands of security-cleared staff and competes with the other large federal services contractors for multi-year programme awards.
darkwolf.io • HQ: Herndon, United States • Managed Security • Custom Software Development • DevSecOps • Information Security • 1001-5000 employees • Trust A • Hiring 63, 4 new
HQ: Herndon, United States • Managed Security • Custom Software Development • DevSecOps • Information Security • 1001-5000 employees • Trust A • Hiring 63, 4 new
Dark Wolf Solutions is a specialized technology services provider offering cybersecurity, DevSecOps, and custom software engineering solutions. The company delivers advanced digital capabilities, threat intelligence, and risk management services to defense agencies, intelligence clients, and commercial enterprises. Headquartered in Herndon, Virginia, it operates across multiple locations to support mission-critical systems and complex IT environments.
salesforce.com • HQ: San Francisco, United States • AI Agents • Team Communication & Collaboration • Marketing Automation • Customer Support & Help Desk Software • BI & Dashboard Software • Marketing & Sales AI • CRM Software • 5000+ employees • Est. 1999 • Trust B • Hiring 1448, 164 new
HQ: San Francisco, United States • AI Agents • Team Communication & Collaboration • Marketing Automation • Customer Support & Help Desk Software • BI & Dashboard Software • Marketing & Sales AI • CRM Software • 5000+ employees • Est. 1999 • Trust B • Hiring 1448, 164 new
Salesforce is an American enterprise software company founded in 1999 that pioneered delivering business applications over the internet rather than as installed software. Its Customer 360 platform brings sales, service, marketing, commerce and analytics onto shared customer data, extended by the Slack collaboration suite, the Tableau analytics business and the MuleSoft integration layer. Headquartered in San Francisco, the company has moved its product strategy toward autonomous agents through Agentforce and the Data Cloud, and it remains the largest customer relationship management vendor in the world by revenue share.
vivsoftgov.com • HQ: Falls Church, United States • 51-200 employees • Hiring 31, 7 new
HQ: Falls Church, United States • 51-200 employees • Hiring 31, 7 new
Scaling Missions in Constrained EnvironmentsVivSoft is accelerating federal efficiency with productized, mission-focused solutions that scale.At VivSoft, we know today’s challenges—budget pressures, complex compliance, and the need for mission success at speed.
vantor.com • HQ: Westminster, United States • Space Services • Geospatial Analytics • Earth Observation • 201-500 employees • Est. 2025 • Trust B • Hiring 132, 16 new
HQ: Westminster, United States • Space Services • Geospatial Analytics • Earth Observation • 201-500 employees • Est. 2025 • Trust B • Hiring 132, 16 new
Vantor is an American space intelligence company created in 2025 when Maxar Technologies split its Earth imaging business from its satellite manufacturing arm and renamed it. It operates one of the largest commercial high-resolution imaging constellations, sells satellite imagery, three-dimensional terrain data and analytics to defence, intelligence and government customers, and holds long-running United States government imagery contracts. Headquartered in Westminster, Colorado and owned by Advent International, it competes with the newer smallsat operators while retaining the archive and geospatial accuracy built up over decades.
attainx.com • HQ: Herndon, United States • Digital Government • Custom Software Development • IT Consulting & Digital Transformation • Systems Integrators • 1001-5000 employees • Est. 2008 • Hiring 41, 2 new
HQ: Herndon, United States • Digital Government • Custom Software Development • IT Consulting & Digital Transformation • Systems Integrators • 1001-5000 employees • Est. 2008 • Hiring 41, 2 new
AttainX is a women-owned small business in Herndon, Virginia, that delivers IT solutions, software products and professional services to federal and state government agencies. Supporting defense and civilian agencies since 2008, it holds CMMI Level 3 and ISO 9001 certifications and contracts with NOAA, the Department of Energy, USCIS, CISA, the Coast Guard, USDA and the Defense Intelligence Agency, covering application development, cloud migration, cybersecurity, data and service desk work. It hires software developers, system administrators, technical writers, business management analysts and executive assistants, many requiring Public Trust or TS SCI clearances.
blacksky.com • HQ: Herndon, United States • Space & Aerospace • Earth Observation • 51-200 employees • Est. 2014 • Trust A • Hiring 35, 6 new
HQ: Herndon, United States • Space & Aerospace • Earth Observation • 51-200 employees • Est. 2014 • Trust A • Hiring 35, 6 new
BlackSky operates a constellation of small imaging satellites and an analytics platform that turns imagery into automated alerts. Founded in 2014 in Virginia, it emphasises revisit rate over resolution so that changes are noticed quickly. Its computer vision detects aircraft, vessels and construction activity without analyst review.
epicor.com • HQ: Austin, United States • Manufacturing & Industrial Software • ERP & Business Management Software • 1001-5000 employees • Est. 1972 • Trust A • Hiring 59, 5 new
HQ: Austin, United States • Manufacturing & Industrial Software • ERP & Business Management Software • 1001-5000 employees • Est. 1972 • Trust A • Hiring 59, 5 new
Epicor is an enterprise software company headquartered in Austin, Texas, that develops enterprise resource planning, supply chain, point of sale and analytics software for manufacturers, distributors, retailers and service businesses. Privately owned by the investment firm Clayton, Dubilier & Rice, it serves customers in more than 150 countries and has added products through acquisitions such as the business intelligence platform Grow and Smart Software. Its global careers board recruits sales and presales solution engineers, professional services consultants, product managers, accountants and cloud operations staff in the US, Mexico, India, the UK and Australia.
grvty.com • HQ: Tysons, United States • Intelligence • National Security • 1001-5000 employees • Est. 2025 • Trust B • Hiring 143, 12 new
HQ: Tysons, United States • Intelligence • National Security • 1001-5000 employees • Est. 2025 • Trust B • Hiring 143, 12 new
GRVTY is a US national security company that delivers mission and technical expertise in space, spectrum and cyber to defence and intelligence customers. Its programs involve software development on large-scale data platforms, GEOINT collection and analysis, signals intelligence training and vulnerability research, with work performed at customer sites such as Herndon and Springfield in Virginia and Annapolis Junction in Maryland. It hires cleared software engineers, big data analysts, Android and iOS developers, UI/UX developers, test and integration engineers, GEOINT analysts and technical training instructors, most roles requiring TS/SCI clearance.
accenture.com • HQ: Dublin, Ireland • Business Process Outsourcing (BPO) • Systems Integrators • Management Consulting • IT Consulting & Digital Transformation • 5000+ employees • Est. 1989 • IT services • Trust A • Hiring 4967, 262 new
HQ: Dublin, Ireland • Business Process Outsourcing (BPO) • Systems Integrators • Management Consulting • IT Consulting & Digital Transformation • 5000+ employees • Est. 1989 • IT services • Trust A • Hiring 4967, 262 new
Accenture is a professional services company that began as the consulting arm of the accounting firm Arthur Andersen, separated as Andersen Consulting in 1989 and took its present name in 2001. It is one of the largest technology services organisations in the world, employing well over seven hundred thousand people and running strategy, consulting, technology, operations and industry work for most of the Fortune Global 500. Incorporated in Dublin and built on a delivery network concentrated in India and the Philippines, it has reoriented around cloud migration, cybersecurity and generative AI, which it now books as a distinct multi-billion dollar revenue line.
clarityinnovates.com • HQ: Columbia, United States • National Security • Homeland Security • 51-200 employees • Est. 2011 • Trust B • Hiring 48, 11 new
HQ: Columbia, United States • National Security • Homeland Security • 51-200 employees • Est. 2011 • Trust B • Hiring 48, 11 new
Clarity Innovations is a US defence and intelligence technology contractor based in Columbia, Maryland, that provides software engineering, data engineering and cyber operations capabilities to the Department of Defense, the Intelligence Community and federal agencies. It organises delivery around eight communities of practice spanning data structuring, DevSecOps and information warfare, keeps a second office in Herndon, Virginia, and is building a web and mobile application for the US Space Force. It hires senior and principal software, platform, security and UX engineers, data scientists and program managers, and runs SkillBridge internships.
bdrsolutionsllc.com • HQ: Leesburg, United States • Health Data & Interoperability • IT Consulting & Digital Transformation • Digital Government • 51-200 employees • Est. 2016 • Hiring 42, 4 new
HQ: Leesburg, United States • Health Data & Interoperability • IT Consulting & Digital Transformation • Digital Government • 51-200 employees • Est. 2016 • Hiring 42, 4 new
BDR Solutions is a service-disabled veteran-owned small business and federal government contractor based in Leesburg, Virginia, providing health IT, agile software development, infrastructure operations, data analytics, supply chain management and IT services to federal agencies. Founded in 2016 by US Navy veteran Bob Rowe and holding 8(a) and HUBZone certifications, it supports the Department of Veterans Affairs, the Defense Health Agency, the Department of Defense, Homeland Security and the Defense Intelligence Agency. It hires software, Java and full-stack developers, data engineers and analysts, database administrators, help desk staff and supply technicians for VA medical centers.
gdit.com • HQ: Falls Church, United States • Government • Military • Professional Services • National Security • Digital Government • IT Consulting & Digital Transformation • Systems Integrators • 5000+ employees • Est. 2006 • Trust A • Hiring 1821, 119 new
HQ: Falls Church, United States • Government • Military • Professional Services • National Security • Digital Government • IT Consulting & Digital Transformation • Systems Integrators • 5000+ employees • Est. 2006 • Trust A • Hiring 1821, 119 new
General Dynamics Information Technology, known as GDIT, is the technology services division of the defence contractor General Dynamics and one of the largest suppliers of IT to the United States federal government. It designs, builds and operates networks, cloud environments, cybersecurity and mission applications for defence, intelligence, homeland security and civilian agencies, work that requires a very large security-cleared workforce. The division roughly doubled in scale through the 2018 acquisition of CSRA, and has since concentrated on cloud migration, zero trust architecture and applying artificial intelligence inside accredited government environments.
mantech.com • HQ: Herndon, United States • IT Consulting & Digital Transformation • Information Security • National Security • 1001-5000 employees • Est. 1968 • Trust A • Hiring 449, 80 new
HQ: Herndon, United States • IT Consulting & Digital Transformation • Information Security • National Security • 1001-5000 employees • Est. 1968 • Trust A • Hiring 449, 80 new
ManTech is a Virginia company founded in 1968 that provides technology services to United States defence and intelligence agencies. Its work covers cybersecurity, data analytics, cloud and mission systems engineering. The company employs thousands of cleared technologists.
tesla.net • HQ: Arlington, United States • Digital Government • Engineering Services • 51-200 employees • Trust A • Hiring 30
HQ: Arlington, United States • Digital Government • Engineering Services • 51-200 employees • Trust A • Hiring 30
Tesla Laboratories is a service-disabled veteran-owned small business based in Arlington, Virginia, that provides cyber security, intelligence analysis, financial management, facilities engineering and program management support to the US Intelligence Community, the Department of Defense and other federal agencies. It places staff at customer sites in Virginia, Washington State, Florida, Michigan, Alabama, Hawaii, New Hampshire and Washington, DC. Its openings include civil, electrical, mechanical, structural and fire protection engineers, cost estimators, construction inspectors, program and project managers and cleared software engineers.
