Backend Developer jobs in Chantilly hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $207,377/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
theleadingpath.com • HQ: McLean, United States • IT Staffing & Staff Augmentation • Systems Integrators • Trust B • Hiring 16, 3 new
HQ: McLean, United States • IT Staffing & Staff Augmentation • Systems Integrators • Trust B • Hiring 16, 3 new
The Leading Path is a technology services company supporting cleared national security programs with data engineering, systems engineering, cloud and network engineering and software development. Its vacancies require top secret clearances with polygraph and include data engineers, data scientists, cleared network engineers and intelligence recruiters. The company is headquartered in McLean, Virginia, United States.
linchpinsoftware.com • HQ: Washington, United States • Custom Software Development • Hiring 7, 1 new
HQ: Washington, United States • Custom Software Development • Hiring 7, 1 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.
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, 9 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, 9 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.
textron.com • HQ: Providence, United States • Financial Services • 1001-5000 employees • Est. 1923 • Hiring 499, 499 new
HQ: Providence, United States • Financial Services • 1001-5000 employees • Est. 1923 • Hiring 499, 499 new
Textron is an American multi-industry conglomerate recognized globally for its aerospace, defense, and specialized industrial manufacturing. Headquartered in Providence, Rhode Island, the company operates iconic brands such as Bell, Cessna, Beechcraft, and Textron Systems. Through its diverse business segments, it delivers advanced military rotorcraft, business jets, uncrewed systems, and specialized utility vehicles to commercial and government customers worldwide.
l3harris.com • HQ: Melbourne, United States • C4ISR • Military Satellites • Electronic Warfare • Military Communication • Defense Manufacturing • 5000+ employees • Est. 2019 • Trust A • Hiring 1368, 196 new
HQ: Melbourne, United States • C4ISR • Military Satellites • Electronic Warfare • Military Communication • Defense Manufacturing • 5000+ employees • Est. 2019 • Trust A • Hiring 1368, 196 new
L3Harris Technologies is an American defense contractor formed in 2019 by the merger of L3 Technologies and Harris Corporation. It builds tactical radios and military communication systems, electronic warfare and intelligence, surveillance and reconnaissance equipment, space sensors and satellites, night vision devices, and uncrewed surface vessels, and owns the rocket engine maker Aerojet Rocketdyne. Its main customers are the United States Department of Defense and allied governments. The company is headquartered in Melbourne, Florida, United States.
boeing.com • HQ: Arlington, United States • Aerospace Manufacturing • Combat Aircraft • Aircraft Manufacturing • 1001-5000 employees • Est. 1916 • Trust A • Hiring 737, 188 new
HQ: Arlington, United States • Aerospace Manufacturing • Combat Aircraft • Aircraft Manufacturing • 1001-5000 employees • Est. 1916 • Trust A • Hiring 737, 188 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.
$135k – $183k per year • Lead • 13+ years exp • In office (Chantilly, United States) • Relocation • Bachelor's Degree • Full-Time • TS/SCI • Citizenship or vetting required • Staff
rocketlab.com • HQ: Long Beach, United States • Satellite Manufacturing • Launch Services • 1001-5000 employees • Est. 2006 • NASDAQ: RKLB • Trust B • Hiring 519, 28 new
HQ: Long Beach, United States • Satellite Manufacturing • Launch Services • 1001-5000 employees • Est. 2006 • NASDAQ: RKLB • Trust B • Hiring 519, 28 new
Rocket Lab USA, Inc. is a publicly traded end-to-end space company, launch services provider, and satellite systems manufacturer. Headquartered in Long Beach, California - having been originally founded in New Zealand - the enterprise operates private orbital launch sites in Māhia, New Zealand, and Wallops Island, Virginia. Its core business activities span lightweight orbital launches via its flagship Electron rocket, hypersonic testing capabilities via HASTE, and the development of its reusable medium-lift launch vehicle, Neutron.
$199k – $325k per year • Equity • Lead • 12+ years exp • In office (Chantilly, United States) • Bachelor's Degree • Nationals only • Citizenship or vetting required • Principal
$143k – $215k per year • Equity • Senior • 8+ years exp • In office (Chantilly, United States) • Bachelor's Degree • Nationals only • Citizenship or vetting required • Senior
avalore.com • HQ: Arlington, United States • Systems Integrators • Engineering Services • 1001-5000 employees • Trust A • Hiring 77, 16 new
HQ: Arlington, United States • Systems Integrators • Engineering Services • 1001-5000 employees • Trust A • Hiring 77, 16 new
Avalore is a US systems engineering and information technology services contractor that supports government programs. Its openings include systems engineers at several levels, test engineers and system administrators, with positions in Arlington, Chantilly, Tysons and Annapolis Junction. The company is headquartered in Arlington, Virginia, United States.
amentum.com • HQ: Chantilly, United States • Military Logistics • Business Process Outsourcing (BPO) • Engineering Services • 5000+ employees • Est. 2020 • Hiring 976, 113 new
HQ: Chantilly, United States • Military Logistics • Business Process Outsourcing (BPO) • Engineering Services • 5000+ employees • Est. 2020 • Hiring 976, 113 new
Amentum is a US government and critical infrastructure services contractor headquartered in Chantilly, Virginia, providing engineering, technical, mission support and operations services in defense, intelligence, space, energy and environment markets. It has about 50,000 employees in more than 70 countries, is listed on the New York Stock Exchange, and absorbed PAE in 2022 before combining with the Jacobs critical mission solutions business in 2024. Openings include aerospace, GN&C and reliability engineers, aircraft workers, database administrators, software engineers, biometric enrollment specialists and paralegals.
leidos.com • HQ: Reston, United States • C4ISR • National Security • Engineering Services • Defense Manufacturing • Systems Integrators • 5000+ employees • Est. 2013 • IT services • Trust B • Hiring 1548, 69 new
HQ: Reston, United States • C4ISR • National Security • Engineering Services • Defense Manufacturing • Systems Integrators • 5000+ employees • Est. 2013 • IT services • Trust B • Hiring 1548, 69 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.
$70k – $126k per year • Junior • 2+ years exp • In office (Tucson, Saint Louis, Chantilly, Englewood, United States) • Bachelor's Degree • Full-Time • TS/SCI • Citizenship or vetting required • Junior
boozallen.com • HQ: McLean, United States • Intelligence • Management Consulting • National Security • IT Consulting & Digital Transformation • 5000+ employees • Est. 1914 • IT services • Trust A • Hiring 1499, 96 new
HQ: McLean, United States • Intelligence • Management Consulting • National Security • IT Consulting & Digital Transformation • 5000+ employees • Est. 1914 • IT services • Trust A • Hiring 1499, 96 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.
fantomcorp.com • McLean • Tysons • Chantilly • Fort Meade • Hanover • IT Consulting & Digital Transformation • 201-500 employees • Trust B • Hiring 32, 2 new
McLean • Tysons • Chantilly • Fort Meade • Hanover • IT Consulting & Digital Transformation • 201-500 employees • Trust B • Hiring 32, 2 new
Home About Benefits Contact Us Careers Home About Benefits Contact Us Careers About the Company Fantom Corporation provides high-end information technology (IT) services to federal and commercial clients, offering a wide range of capabilities for any project need.
peraton.com • HQ: Reston, United States • Systems Integrators • Information Security • Homeland Security • National Security • 1001-5000 employees • Est. 2017 • Trust A • Hiring 924, 114 new
HQ: Reston, United States • Systems Integrators • Information Security • Homeland Security • National Security • 1001-5000 employees • Est. 2017 • Trust A • Hiring 924, 114 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.
saic.com • HQ: Reston, United States • Engineering Services • Digital Government • Systems Integrators • 5000+ employees • Est. 2013 • Trust B • Hiring 701, 47 new
HQ: Reston, United States • Engineering Services • Digital Government • Systems Integrators • 5000+ employees • Est. 2013 • Trust B • Hiring 701, 47 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.
technicacorp.com • Washington • Chantilly • Fort Belvoir • Sterling • Dulles • Information Technology • 501-1000 employees • Hiring 21, 1 new
Washington • Chantilly • Fort Belvoir • Sterling • Dulles • Information Technology • 501-1000 employees • Hiring 21, 1 new
Driving innovation with custom solutions for unique challenges.. We break down every challenge to apply the smartest possible solution – and if that solution doesn’t exist, we’ll build one.
j5consulting.co • HQ: Bowie, United States • Information Technology • IT Infrastructure & Networking Services • IT Consulting & Digital Transformation • 201-500 employees • Est. 2006 • Hiring 64
HQ: Bowie, United States • Information Technology • IT Infrastructure & Networking Services • IT Consulting & Digital Transformation • 201-500 employees • Est. 2006 • Hiring 64
Founded in 2006, J5 Consulting is an information technology and cybersecurity consulting firm headquartered in Bowie, Maryland. Drawing on extensive experience supporting federal government, defense, and commercial enterprises, the company delivers mission-critical IT modernization, enterprise architecture, and cyber defense solutions. Its core service offerings span governance, risk management, and compliance (GRC) audits aligned with NIST and CMMC frameworks, multi-cloud security engineering across AWS and Azure, vulnerability assessments, and continuous monitoring designed to safeguard sensitive assets and maintain regulatory compliance.
gdit.com • HQ: Falls Church, United States • National Security • Digital Government • IT Consulting & Digital Transformation • Systems Integrators • 5000+ employees • Est. 2006 • Trust A • Hiring 1785, 105 new
HQ: Falls Church, United States • National Security • Digital Government • IT Consulting & Digital Transformation • Systems Integrators • 5000+ employees • Est. 2006 • Trust A • Hiring 1785, 105 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.
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.
acclaimtechnical.com • HQ: Reston, United States • Recruiting & Staffing • National Security • 51-200 employees • Est. 2000 • Hiring 68, 1 new
HQ: Reston, United States • Recruiting & Staffing • National Security • 51-200 employees • Est. 2000 • Hiring 68, 1 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.
caci.com • HQ: Reston, United States • Data & Analytics • Cybersecurity • Military • National Security • IT Consulting & Digital Transformation • Intelligence • Electronic Warfare • 5000+ employees • Est. 1962 • IT services • Trust D • Hiring 1848, 77 new
HQ: Reston, United States • Data & Analytics • Cybersecurity • Military • National Security • IT Consulting & Digital Transformation • Intelligence • Electronic Warfare • 5000+ employees • Est. 1962 • IT services • Trust D • Hiring 1848, 77 new
CACI International is an American technology company founded in 1962 that works almost entirely for United States defence, intelligence and federal civilian agencies. It has moved from being a conventional IT services contractor toward supplying its own technology, with a substantial expeditionary electronic warfare and signals intelligence product line, photonics and optical communications for space, and secure network modernisation. Headquartered in Reston, Virginia, the company employs more than twenty thousand people, the majority holding security clearances, and has grown through a steady programme of acquisitions that add differentiated technology rather than headcount alone.
