Machine Learning Engineer jobs in Chantilly hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $199,154/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
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boozallen.com • HQ: McLean, United States • Intelligence • Management Consulting • National Security • IT Consulting & Digital Transformation • 5000+ employees • Est. 1914 • IT services • Trust A • Hiring 1533, 169 new
HQ: McLean, United States • Intelligence • Management Consulting • National Security • IT Consulting & Digital Transformation • 5000+ employees • Est. 1914 • IT services • Trust A • Hiring 1533, 169 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.
linchpinsoftware.com • HQ: Washington, United States • Custom Software Development • Hiring 5, 3 new
HQ: Washington, United States • Custom Software Development • Hiring 5, 3 new
Capabilities. Web development, specifically J2EE, is a core strength of our team as we have experience in designing, constructing, testing, and maintaining enterprise applications for major federal organizations.
avalore.ai • HQ: Arlington, United States • Data Engineering & Migration Services • Intelligence • Systems Integrators • 1001-5000 employees • Trust A • Hiring 78, 16 new
HQ: Arlington, United States • Data Engineering & Migration Services • Intelligence • Systems Integrators • 1001-5000 employees • Trust A • Hiring 78, 16 new
Avalore is a US defense and intelligence technology contractor based in Arlington, Virginia that provides data science, data engineering, software development, cloud and cybersecurity services to Department of War and intelligence community customers. Its programs include work on a War Data Platform, imagery and data exploitation, ISR analysis and machine learning support, with staff in Arlington, Chantilly, Springfield and Herndon, Virginia and Annapolis Junction, Maryland, and many positions require security clearances. It hires data scientists and exploitation specialists, data architects, software, platform and cloud engineers, cybersecurity staff and ISR staff officers.
saic.com • HQ: Reston, United States • Engineering Services • Digital Government • Systems Integrators • 5000+ employees • Est. 2013 • Trust B • Hiring 696, 115 new
HQ: Reston, United States • Engineering Services • Digital Government • Systems Integrators • 5000+ employees • Est. 2013 • Trust B • Hiring 696, 115 new
SAIC delivers technology integration and mission services to government agencies. Its work spans enterprise information technology, space systems, engineering and digital modernisation. The company is one of the largest federal services contractors.
apextk.com • Huntsville • Chantilly • Fort Belvoir • Engineering Services • Defense AI • 51-200 employees • Trust B • Hiring 22, 7 new
Huntsville • Chantilly • Fort Belvoir • Engineering Services • Defense AI • 51-200 employees • Trust B • Hiring 22, 7 new
Systems engineering and acquisition expertise for complex defense programs, with custom AI and machine learning solutions built by the practitioners who do the.
peraton.com • HQ: Reston, United States • Systems Integrators • Information Security • Homeland Security • National Security • 1001-5000 employees • Est. 2017 • Trust A • Hiring 929, 115 new
HQ: Reston, United States • Systems Integrators • Information Security • Homeland Security • National Security • 1001-5000 employees • Est. 2017 • Trust A • Hiring 929, 115 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.
leidos.com • HQ: Reston, United States • C4ISR • National Security • Engineering Services • Defense Manufacturing • Systems Integrators • 5000+ employees • Est. 2013 • IT services • Trust B • Hiring 1523, 131 new
HQ: Reston, United States • C4ISR • National Security • Engineering Services • Defense Manufacturing • Systems Integrators • 5000+ employees • Est. 2013 • IT services • Trust B • Hiring 1523, 131 new
Leidos is an American technology and engineering services company created in 2013 when Science Applications International Corporation split in two, with Leidos taking the technical services and solutions business. It is one of the largest suppliers to the United States government, working across defence programmes, intelligence systems, civil agencies including the Federal Aviation Administration, and healthcare services for the Department of Veterans Affairs. Headquartered in Reston, Virginia, the company also builds security detection products for airports and borders, and has concentrated recent investment on trusted artificial intelligence and autonomy for mission environments.
gdmissionsystems.com • HQ: Fairfax, United States • Military • Cybersecurity • C4ISR • Defense Manufacturing • National Security • 1001-5000 employees • Est. 2015 • Trust A • Hiring 532, 91 new
HQ: Fairfax, United States • Military • Cybersecurity • C4ISR • Defense Manufacturing • National Security • 1001-5000 employees • Est. 2015 • Trust A • Hiring 532, 91 new
General Dynamics Mission Systems is the business unit of defense contractor General Dynamics that builds C4ISR, secure communications, cybersecurity, electronic warfare and mission systems for land, sea, air, space and cyber operations, with headquarters in Fairfax, Virginia. Formed in 2015 by merging two General Dynamics units, it employs more than 12,000 people at sites such as Pittsfield and Dedham in Massachusetts, Scottsdale in Arizona and Manassas in Virginia. Recruiting centers on ASIC and FPGA, embedded software, electrical, mechanical and systems engineers, test staff, manufacturing technicians and interns.
$133k – $144k per year • Senior • 8+ years exp • Hybrid (Chantilly, United States) • Bachelor's Degree • Nationals only • Citizenship or vetting required • Senior
aerospace.org • HQ: El Segundo, United States • National Security • Research Institutes • 1001-5000 employees • Est. 1960 • Trust B • Hiring 428, 72 new
HQ: El Segundo, United States • National Security • Research Institutes • 1001-5000 employees • Est. 1960 • Trust B • Hiring 428, 72 new
The Aerospace Corporation is a federally funded research centre supporting national security space programmes. Its engineers provide launch verification, systems engineering and mission assurance for government satellite projects. The organisation also researches orbital debris, resilient architectures and space policy.
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 15227, 1024 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 15227, 1024 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.
accenturefederal.com • HQ: Arlington, United States • IT Consulting & Digital Transformation • Digital Government • 5000+ employees • Trust B • Hiring 573, 45 new
HQ: Arlington, United States • IT Consulting & Digital Transformation • Digital Government • 5000+ employees • Trust B • Hiring 573, 45 new
Accenture Federal Services is the US federal government business of the global professional services firm Accenture, providing technology, cloud, AI, data and cybersecurity services to defense, national security, public safety, civilian and military health agencies, headquartered in Arlington, Virginia, near Washington, DC. It operates as a wholly owned subsidiary of Accenture and employs more than 13,000 people. Its openings are mostly technical roles such as cloud services engineers, software engineering leads, solution architects, data engineers, CI/CD pipeline engineers, SharePoint specialists, system administrators, test engineers and user experience designers.
acclaimtechnical.com • HQ: Reston, United States • Recruiting & Staffing • National Security • 51-200 employees • Est. 2000 • Hiring 69, 2 new
HQ: Reston, United States • Recruiting & Staffing • National Security • 51-200 employees • Est. 2000 • Hiring 69, 2 new
Acclaim Technical Services (ATS) is an employee-owned American government contractor headquartered in Reston, Virginia, providing cyber operations, intelligence, language, network infrastructure, engineering and enterprise IT services to the defense and intelligence communities. Founded in 2000 and owned through an employee stock ownership plan, it supports a range of US federal agencies with staff concentrated around Chantilly, Annapolis Junction, McLean and Bethesda. Its openings include AI and machine learning engineers, data scientists, full stack and software developers, system integrators and administrators, infrastructure engineers and UI and UX designers.
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 1822, 95 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 1822, 95 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.
ardentprinciples.com • HQ: Chantilly, United States • IT Staffing & Staff Augmentation • AI Consulting & Integration • Data Engineering & Migration Services • Custom Software Development • 51-200 employees • Trust A • Hiring 24, 4 new
HQ: Chantilly, United States • IT Staffing & Staff Augmentation • AI Consulting & Integration • Data Engineering & Migration Services • Custom Software Development • 51-200 employees • Trust A • Hiring 24, 4 new
Ardent Principles is an American information technology services firm in the Washington DC area that offers data science, data engineering, software engineering, AI solutions, cybersecurity, staff augmentation and IT program management to its clients. It was founded by chief executive Robert McCauley, a Howard University computer science graduate with more than two decades in IT, and most of its openings are in Northern Virginia, chiefly Chantilly, McLean, Herndon and Reston. It hires software developers in Java, Spring Boot and ServiceNow, data scientists, machine learning and AI engineers, cloud, network and Linux engineers, cyber security engineers and systems architects.
sosi.com • HQ: Reston, United States • IT Infrastructure & Networking Services • Military Logistics • Translation Services • Intelligence • 1001-5000 employees • Est. 1989 • Trust C • Hiring 220, 2 new
HQ: Reston, United States • IT Infrastructure & Networking Services • Military Logistics • Translation Services • Intelligence • 1001-5000 employees • Est. 1989 • Trust C • Hiring 220, 2 new
SOS International, known as SOSi, is a privately held American government services company founded in 1989 that began by supplying linguists and interpreters to the United States military. It has since broadened into intelligence analysis, logistics and base operations support, information technology and network engineering, and cybersecurity, working for defence, intelligence and federal civilian customers both in the United States and in deployed locations. Headquartered in Reston, Virginia and still family owned, it employs several thousand people, a large share of them holding security clearances.
nokiafederal.com • HQ: Chantilly, United States • Homeland Security • National Security • Military • Mobile Networks • Telecom Infrastructure • 201-500 employees • Est. 2024 • Hiring 9
HQ: Chantilly, United States • Homeland Security • National Security • Military • Mobile Networks • Telecom Infrastructure • 201-500 employees • Est. 2024 • Hiring 9
Trusted communications for the U.S. government. Nokia Federal provides secure 5G, private wireless, and resilient networks for defense and civilian missions.
kbr.com • HQ: Houston, United States • Space Services • Military Logistics • Engineering Services • 5000+ employees • Est. 1998 • Trust B • Hiring 1464, 59 new
HQ: Houston, United States • Space Services • Military Logistics • Engineering Services • 5000+ employees • Est. 1998 • Trust B • Hiring 1464, 59 new
KBR is an engineering, science and technology company headquartered in Houston, Texas, delivering government services, defense and space mission support, process technology licensing and engineering for energy, chemicals and infrastructure projects. Listed on the New York Stock Exchange, it works across the United States, the United Kingdom, Australia and the Middle East, and in September 2025 announced the spin-off of its Mission Technology Solutions business into a separate public company. It hires process, piping, instrumentation, structural and HSE engineers, project and construction managers, logistics and commercial specialists, and finance, tax and IT staff.
mitre.org • HQ: McLean, United States • Space & Aerospace • Homeland Security • National Security • 1001-5000 employees • Est. 1958 • Hiring 281, 145 new
HQ: McLean, United States • Space & Aerospace • Homeland Security • National Security • 1001-5000 employees • Est. 1958 • Hiring 281, 145 new
MITRE is an American not for profit corporation that operates federally funded research and development centres for United States government agencies. Its artificial intelligence work spans model assurance, adversarial machine learning and the widely used ATLAS knowledge base of attacks against machine learning systems. The organisation advises defence, aviation, health and cybersecurity agencies and deliberately holds no commercial products of its own; its centres also maintain the ATT&CK framework that security teams everywhere rely on.
$174k – $218k per year • Lead • 8+ years exp • In office (Chantilly, United States) • Bachelor's Degree • Full-Time • TS/SCI • Citizenship or vetting required • Staff
rincon.com • HQ: Tucson, United States • Intelligence • Electronic Warfare • Est. 1983 • Trust B • Hiring 39, 1 new
HQ: Tucson, United States • Intelligence • Electronic Warfare • Est. 1983 • Trust B • Hiring 39, 1 new
Welcome to Rincon Research Corporation. Our core business is to design, build, test, and field high-performance DSP products and services for the U.S. Defense and Intelligence communities.
$130k – $160k per year • Equity • Senior • 5+ years exp • In office (Chantilly, United States) • Full-Time • TS/SCI • Citizenship or vetting required • Senior
darkwolf.io • HQ: Herndon, United States • Managed Security • Custom Software Development • DevSecOps • Information Security • 1001-5000 employees • Trust A • Hiring 64, 2 new
HQ: Herndon, United States • Managed Security • Custom Software Development • DevSecOps • Information Security • 1001-5000 employees • Trust A • Hiring 64, 2 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.
