Backend Developer Jobs in Herndon

Backend Developer jobs in Herndon hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $206,982/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

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Amazon

amazon.com
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 15576, 1001 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 15576, 1001 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.
Jeff Bezos · Founder & Executive Chairman · decision-maker
Scott McMillan · Executive Officer · decision-maker
Emily Austin · Executive Officer · decision-maker
Joel Wallenstrom · Executive Officer, Director · decision-maker
Careers mailbox is known
Top 25% payVerified live Visa sponsor 4 hours ago Likely open · 60%

Principal Engineer, Amazon Software Builder Experience (ASBX)

$230k – $311k per year • Equity • Lead • In office (Seattle, Arlington, Santa Clara, New York, Herndon, United States) • Bachelor's Degree • Full-Time • Principal
C#
C++
Java
AI/ML
AI Agents
DevOps
CI/CD
AWS
Apply
Top 25% payVerified live · 4 hours ago Visa sponsor 1 day ago Likely open · 63%

Software Development Engineer, AWS Security Communications

$144k – $194k per year • Equity • Middle • 3+ years exp • In office (Seattle, Herndon, United States) • Bachelor's Degree • Full-Time • Middle
Perl
C#
C++
Java
AI/ML
LLM
Machine Learning
DevOps
AWS
Apply
Top 25% payVerified live · 4 hours ago Visa sponsor 1 day ago Likely open · 63%

Software Dev Engineer, Amazon Security, ASCOT Engineering

$144k – $194k per year • Equity • Middle • 3+ years exp • In office (Herndon, United States) • Bachelor's Degree • Full-Time • Middle
Perl
C#
C++
Java
AI/ML
AI Agents
DevOps
AWS
Apply

Boeing

boeing.com
boeing.com • HQ: Arlington, United States • Aerospace Manufacturing • Combat Aircraft • Aircraft Manufacturing • 1001-5000 employees • Est. 1916 • Trust A • Hiring 726, 190 new
HQ: Arlington, United States • Aerospace Manufacturing • Combat Aircraft • Aircraft Manufacturing • 1001-5000 employees • Est. 1916 • Trust A • Hiring 726, 190 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.
No named decision-maker yet.
No careers mailbox known
Verified live · 4 hours ago 1 day ago Hiring now · 70%

Audio Visual Programmer Analyst (Experienced, Senior or Lead)

$116k – $156k per year • Lead • 10+ years exp • In office (Herndon, United States) • Relocation • Full-Time • TS/SCI • Citizenship or vetting required • Staff
Perl
Visual Basic
C#
C++
JavaScript
Python
Apply
Top 25% payVerified live · 4 hours ago 3 days ago Hiring now · 70%

Senior Software Architect

$212k – $286k per year • Staff+ • 22+ years exp • In office (Herndon, United States) • Relocation • Bachelor's Degree • Full-Time • TS/SCI • Citizenship or vetting required • Architect
C#
C++
Java
Python
DevOps
RTOS
Linux
GitLab
Jenkins
Docker
Kubernetes
CI/CD
Robotics
ROS2
+4
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Top 25% payVerified live · 4 hours ago 10 days ago Likely open · 58%

Senior Java Software Engineer – Developer

$172k – $232k per year • Senior • 17+ years exp • In office (Herndon, El Segundo, Colorado Springs, United States) • Relocation • Bachelor's Degree • Full-Time • Top Secret • Citizenship or vetting required • Senior
C++
Java
Python
TypeScript
JavaScript
Frontend
Angular
DevOps
Windows
Linux
CI/CD
Management
Agile
+2
Apply

Vantor

vantor.com
vantor.com • HQ: Westminster, United States • Space Services • Geospatial Analytics • Earth Observation • 201-500 employees • Est. 2025 • Trust B • Hiring 135, 13 new
HQ: Westminster, United States • Space Services • Geospatial Analytics • Earth Observation • 201-500 employees • Est. 2025 • Trust B • Hiring 135, 13 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.
No named decision-maker yet.
Careers mailbox is known
Top 25% payVerified live · 1 day ago 2 days ago Likely open · 63%

Principal Full Stack Software Engineer (TS/SCI with CI poly)

$200k – $270k per year • Lead • 10+ years exp • In office (Herndon, United States) • Full-Time • TS/SCI • Citizenship or vetting required • Principal
Node JS
C++
JavaScript
Python
TypeScript
Python
Django
C++
OpenGL
Databases
Cassandra
PostGIS
SQLite
MySQL
PostgreSQL
AI/ML
Hadoop
Spark
Frontend
CesiumJS
Angular
React.js
DevOps
Chef
Vagrant
Configuration Management
VirtualBox
VMWare
Windows
CI/CD
AWS
Game Dev
Unity
Management
Agile
SpaceTech
QGIS
GeoServer
+21
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Top 25% payVerified live · 1 day ago 7 days ago Likely open · 63%

Senior Software Engineer (TS/SCI)

$185k – $220k per year • Senior • 5+ years exp • In office (Herndon, United States) • Bachelor's Degree • Full-Time • TS/SCI • Citizenship or vetting required • Senior
Rust
Java
Python
Databases
ElasticSearch
DevOps
Docker
Kubernetes
CI/CD
AWS
Apply
Verified live · 1 day ago 18 days ago Likely open · 55%

Full Stack Software Engineer

$116k – $154k per year • Senior • 5+ years exp • In office (Herndon, United States) • Bachelor's Degree • Full-Time • TS/SCI • Citizenship or vetting required • Senior
TypeScript
JavaScript
Python
Frontend
Angular
React.js
DevOps
Git
OpenStack
Docker
Linux
Kubernetes
AWS
+3
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Peraton

peraton.com
peraton.com • HQ: Reston, United States • Systems Integrators • Information Security • Homeland Security • National Security • 1001-5000 employees • Est. 2017 • Trust A • Hiring 907, 154 new
HQ: Reston, United States • Systems Integrators • Information Security • Homeland Security • National Security • 1001-5000 employees • Est. 2017 • Trust A • Hiring 907, 154 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.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 hours ago 3 days ago Hiring now · 90%

Software Developer - SME

$135k – $216k per year • Staff+ • 12+ years exp • In office (Herndon, United States) • Associate's Degree • Public Trust • Principal
Java
SQL
TypeScript
JavaScript
Java
Spring Boot
Frontend
Angular
DevOps
Docker
GCP
Kubernetes
Azure
CI/CD
AWS
CloudFormation
Terraform
Cybersecurity
FedRAMP
Management
Agile
+8
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Verified live · 2 hours ago 7 days ago Hiring now · 71%

Software Engineering (Ignite Innovator Pgm), Associate- Herndon or Blacksburg, VA

≈ $96k – $195k per year (Estimated) • Junior • In office (Herndon, United States) • Bachelor's Degree
C++
Java
Python
AI/ML
Machine Learning
PyTorch
DevOps
Ansible
Docker
Management
Agile
Apply
Verified live · 2 hours ago 7 days ago Hiring now · 71%

Software Engineering, Associate - Herndon, VA

$66k – $106k per year • Junior • In office (Herndon, United States) • Bachelor's Degree • TS/SCI
Java
SQL
Python
TypeScript
JavaScript
Databases
PostgreSQL
Frontend
Angular
Management
Agile
Apply

Avalore

avalore.com
avalore.com • HQ: Arlington, United States • Systems Integrators • Engineering Services • 1001-5000 employees • Trust A • Hiring 77, 14 new
HQ: Arlington, United States • Systems Integrators • Engineering Services • 1001-5000 employees • Trust A • Hiring 77, 14 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.
No named decision-maker yet.
No careers mailbox known
Verified live · 5 hours ago 3 days ago Hiring now · 90%

Software Development Engineer

≈ $177k – $379k per year (Estimated) • In office (Herndon, United States) • Full-Time
Python
Databases
Apache Kafka
DevOps
Grafana
Apply
rgi-corp.com • HQ: Fairfax, United States • Military • National Security • Homeland Security • Trust B • Hiring 17, 2 new
HQ: Fairfax, United States • Military • National Security • Homeland Security • Trust B • Hiring 17, 2 new
RGi is a leading C5ISR innovator and geospatial expert in National Security. We deliver an Immediate Impact™ for soldiers and analysts.
No named decision-maker yet.
Careers mailbox is known
Verified live · 2 hours ago 4 days ago Likely open · 63%

Application Developer - Java

≈ $122k – $260k per year (Estimated) • In office (Herndon, United States) • Full-Time • TS/SCI
JavaScript
SQL
Python
TypeScript
Java
Java
Maven
Apache Tomcat
Databases
Oracle
ElasticSearch
MySQL
Apache Kafka
PostgreSQL
AI/ML
Hadoop
Spark
Frontend
Angular
DevOps
ZooKeeper
Kibana
Chef
Logstash
Unix
Jenkins
Rest API
Windows
Git
Docker
Linux
Kubernetes
CI/CD
Management
UML
Agile
QA
Selenium
+23
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The Swift Group

theswiftgroup.com
theswiftgroup.com • HQ: Reston, United States • Military • Government • National Security • Homeland Security • 1001-5000 employees • Trust A • Hiring 104, 1 new
HQ: Reston, United States • Military • Government • National Security • Homeland Security • 1001-5000 employees • Trust A • Hiring 104, 1 new
Headquartered in Reston, Virginia, United States, The Swift Group is a national security technology and mission support contractor specializing in advanced engineering and operational advisory for the defense and intelligence sectors. The enterprise delivers tailored technical capabilities spanning high-performance computing (HPC) research and systems architecture, custom software development, applied data science, cyber enablement, advanced energetics, and operator-led tactical training.
No named decision-maker yet.
Careers mailbox is known
Verified live · 30 min ago 4 days ago Hiring now · 90%

Java Full Stack Developer

$50k – $290k per year • In office (Herndon, United States) • Full-Time • TS/SCI
Java
TypeScript
JavaScript
Frontend
Angular
DevOps
Jenkins
Git
Linux
CI/CD
Management
Scrum
Agile
+2
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Verified live · 30 min ago 3 months ago Likely open · 51%

Software Engineer SME

$50k – $290k per year • Staff+ • 10+ years exp • In office (Herndon, United States) • Bachelor's Degree • Full-Time • TS/SCI • Staff
Java
SQL
Python
Databases
MariaDB
Trino
MySQL
PostgreSQL
AI/ML
Hadoop
Spark
DevOps
GitLab
Ansible
GitHub
Rest API
Git
Linux
AWS
+8
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Salesforce

salesforce.com
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 1423, 172 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 1423, 172 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.
Parker Harris · Co-Founder · decision-maker
Marc Benioff · Co-Founder, Chairman & Chief Executive Officer · decision-maker
Brent Hyder · Executive Officer · decision-maker
Srinivas Tallapragada · Executive Officer · decision-maker
No careers mailbox known
Top 25% payVerified live · 2 hours ago 9 days ago Likely open · 58%

GovCloud Software Engineer

$117k – $224k per year • Junior • 2+ years exp • In office (San Francisco, Herndon, Washington, United States) • PhD • Full-Time • Junior
Go
Java
Python
AI/ML
Agentforce
AI Agents
DevOps
Terraform
Docker
Kubernetes
Management
Agile
+1
Apply
Top 25% payVerified live · 2 hours ago 22 days ago Fading · 44%

GovCloud Distributed Systems Software Engineer

$173k – $260k per year • Senior • 5+ years exp • In office (Washington, Denver, Herndon, San Francisco, United States) • PhD • Full-Time • Senior
Ruby
Go
Java
Python
Databases
PostgreSQL
AI/ML
Windsurf
Agentforce
Cursor
Prompt Engineering
OpenAI
Claude
AI Agents
OpenAI Codex
Claude Code
Copilot
DevOps
ZooKeeper
Spinnaker
Terraform
Docker
GCP
Kubernetes
Azure
AWS
Management
Agile
+16
Apply
Verified live · 2 hours ago 1 month ago Fading · 27%

Software Engineer- GovCloud

$117k – $177k per year • Middle • 3+ years exp • In office (Washington, Denver, Herndon, San Francisco, United States) • PhD • Full-Time • Middle
Ruby
Go
Java
Python
Databases
PostgreSQL
AI/ML
Windsurf
Agentforce
Cursor
Prompt Engineering
OpenAI
Claude
AI Agents
OpenAI Codex
Claude Code
Copilot
DevOps
ZooKeeper
Spinnaker
Terraform
Docker
GCP
Kubernetes
Azure
AWS
Management
Agile
+16
Apply

Accenture Federal Services

accenturefederal.com
accenturefederal.com • HQ: Arlington, United States • IT Consulting & Digital Transformation • Digital Government • 5000+ employees • Trust B • Hiring 555, 58 new
HQ: Arlington, United States • IT Consulting & Digital Transformation • Digital Government • 5000+ employees • Trust B • Hiring 555, 58 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.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 hours ago 10 days ago Likely open · 62%

Software Architect

≈ $192k – $356k per year (Estimated) • Staff+ • 5+ years exp • Hybrid (Herndon, United States) • Bachelor's Degree • Top Secret • Architect
Java
SQL
Python
Databases
Amazon Redshift
Amazon Aurora
PostgreSQL
AI/ML
Model Context Protocol
DevOps
Terraform
Rest API
Docker
GCP
Kubernetes
Azure
AWS
Analytics
ETL/ELT
+7
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Verified live · 2 hours ago 1 month ago Fading · 42%

Software Development Engineer

≈ $165k – $304k per year (Estimated) • Senior • 8+ years exp • In office (Herndon, United States) • TS/SCI • Staff
Python
Databases
Apache Kafka
DevOps
Grafana
Apply

GRVTY

grvty.com
grvty.com • HQ: Tysons, United States • Intelligence • National Security • 1001-5000 employees • Est. 2025 • Trust B • Hiring 144, 14 new
HQ: Tysons, United States • Intelligence • National Security • 1001-5000 employees • Est. 2025 • Trust B • Hiring 144, 14 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.
No named decision-maker yet.
Careers mailbox is known
Top 25% payVerified live · 5 hours ago Visa sponsor 11 days ago Likely open · 63%

Mid/Sr Software Developer

$118k – $226k per year • Senior • 5+ years exp • In office (Aurora, Chantilly, Herndon, United States) • Bachelor's Degree • TS/SCI • Senior
C++
Java
Python
Kotlin
Java
Lombok
Gradle
Kotlin
Mockito
Databases
ActiveMQ
Apache Kafka
DevOps
Rest API
CI/CD
AWS
Helm
Git
Linux
Kubernetes
Analytics
Apache NiFi
QA
Swagger
+10
Apply
Top 25% payVerified live · 5 hours ago Visa sponsor 1 month ago Fading · 27%

Software Development Engineer

$150k – $250k per year • In office (Herndon, United States) • TS/SCI
Python
Databases
Apache Kafka
DevOps
Grafana
Apply

Inabia

inabia.com
inabia.com • HQ: Bellevue, United States • Analytics & BI Consulting • IT Consulting & Digital Transformation • IT Staffing & Staff Augmentation • 201-500 employees • Est. 2006 • Staffing · EOR • Trust A • Hiring 95, 19 new
HQ: Bellevue, United States • Analytics & BI Consulting • IT Consulting & Digital Transformation • IT Staffing & Staff Augmentation • 201-500 employees • Est. 2006 • Staffing · EOR • Trust A • Hiring 95, 19 new
Inabia is an American technology consulting and staffing company, trading as Inabia Software & Consulting, that supplies software engineers, data specialists and analysts to enterprise and public sector clients. Its work covers custom application development, data engineering and analytics, cloud infrastructure, security engineering such as Splunk and SIEM, and applied artificial intelligence, delivered as consulting engagements and as placements of specialists into client teams. The company is headquartered in Bellevue, Washington, United States.
No named decision-maker yet.
Careers mailbox is known
Verified live · 4 hours ago 15 days ago Fading · 29%

Lead Software Engineer - Inabia Software & Consulting Inc.

≈ $134k – $268k per year (Estimated) • Lead • 13+ years exp • In office (Herndon, United States) • Relocation • Bachelor's Degree • Secret • Staff
C++
Java
Java
Spring Boot
DevOps
Jenkins
Rest API
Docker
Linux
Kubernetes
CI/CD
AWS
Management
Agile
+3
Apply

BDR Solutions

bdrsolutionsllc.com
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.
No named decision-maker yet.
Careers mailbox is known
Verified live · 1 hour ago 15 days ago Hiring now · 90%

Sr Backend Developer

≈ $120k – $208k per year (Estimated) • Senior • 7+ years exp • Herndon • Remote (United States, EST hours) • Bachelor's Degree • Full-Time • Public Trust • Senior
AppDynamics
GitHub Actions
Jenkins
Rest API
Git
Kubernetes
CI/CD
AWS
Cybersecurity
SonarQube
NIST 800-53
FedRAMP
Sonatype Nexus IQ
Management
Scrum
Agile
QA
Selenium
+7
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AttainX

attainx.com
attainx.com • HQ: Herndon, United States • Digital Government • Custom Software Development • IT Consulting & Digital Transformation • Systems Integrators • 1001-5000 employees • Est. 2008 • Hiring 40, 1 new
HQ: Herndon, United States • Digital Government • Custom Software Development • IT Consulting & Digital Transformation • Systems Integrators • 1001-5000 employees • Est. 2008 • Hiring 40, 1 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.
No named decision-maker yet.
Careers mailbox is known
Verified live · 27 min ago 16 days ago Fading · 33%

Web Software Developer II

$72k – $80k per year • Middle • 2+ years exp • Herndon • Remote (United States, ET hours, 9am - 3pm) • Bachelor's Degree • Full-Time • Public Trust • Middle
JavaScript
Management
Agile
Apply
Verified live · 27 min ago 19 days ago Fading · 30%

Applications Architect - Level V

$188k – $197k per year • Staff+ • 7+ years exp • Herndon • Remote (United States, ET hours, 8am - 5pm) • Bachelor's Degree • Full-Time • Public Trust • Architect
Rest API
Azure
AWS
Apply
Verified live · 27 min ago 19 days ago Fading · 25%

Software Engineer II

$101k – $105k per year • Middle • 3+ years exp • Hybrid (Herndon, United States, 8am - 4pm) • Bachelor's Degree • Full-Time • Public Trust • Middle
AWS
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L3Harris Technologies

l3harris.com
l3harris.com • HQ: Melbourne, United States • C4ISR • Military Satellites • Electronic Warfare • Military Communication • Defense Manufacturing • 5000+ employees • Est. 2019 • Trust A • Hiring 1363, 195 new
HQ: Melbourne, United States • C4ISR • Military Satellites • Electronic Warfare • Military Communication • Defense Manufacturing • 5000+ employees • Est. 2019 • Trust A • Hiring 1363, 195 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.
No named decision-maker yet.
No careers mailbox known
Top 25% payVerified live · 3 hours ago Visa sponsor 16 days ago Likely open · 55%

Lead, Application Developer - Full Stack Developer

$128k – $237k per year • Lead • 13+ years exp • Herndon • Remote (United States) • Staff
TypeScript
JavaScript
Python
Frontend
Angular
React.js
DevOps
CI/CD
Analytics
ETL/ELT
Management
Agile
Apply
Top 25% payVerified live · 3 hours ago Visa sponsor 1 month ago Long shot · 17%

Lead, Software Engineer

$117k – $218k per year • Lead • 13+ years exp • In office (Herndon, United States) • Secret • Staff
C++
Java
Java
Spring Boot
DevOps
Jenkins
Rest API
Docker
Linux
Kubernetes
CI/CD
AWS
Management
Agile
+3
Apply
Top 25% payVerified live · 3 hours ago Visa sponsor 1 month ago Long shot · 16%

RUST Software Developer - Multiple Levels (Minimum $10K Sign-on Bonus)

$97k – $180k per year • Senior • 8+ years exp • In office (Herndon, United States) • Secret • Staff
Rust
C++
Python
DevOps
Linux
Management
UML
Scrum
SpaceTech
DO-178C
Cameo Systems Modeler
Apply

Parsons

parsons.com
parsons.com • HQ: Chantilly, United States • Civil & Structural Engineering • C4ISR • Engineering Services • Homeland Security • 5000+ employees • Est. 1944 • NYSE: PSN • Trust B • Hiring 940, 157 new
HQ: Chantilly, United States • Civil & Structural Engineering • C4ISR • Engineering Services • Homeland Security • 5000+ employees • Est. 1944 • NYSE: PSN • Trust B • Hiring 940, 157 new
Parsons Corporation is a technology-driven defense, intelligence, and critical infrastructure engineering enterprise. The company focuses on delivering advanced cybersecurity, missile defense and space ground systems, geospatial intelligence, environmental remediation, and complex civil infrastructure engineering for transportation, aviation, bridges, and water systems.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 hours ago 16 days ago Long shot · 18%

Software Engineer, Senior

≈ $142k – $261k per year (Estimated) • Senior • 8+ years exp • Hybrid (Herndon, United States) • Bachelor's Degree • Full-Time • TS/SCI • Senior
TypeScript
JavaScript
Python
Python
FastAPI
Django
Databases
PostgreSQL
Frontend
React.js
D3.js
DevOps
Git
Docker
Linux
CI/CD
Kubernetes
Analytics
Plotly
Management
Agile
+7
Apply
Verified live · 2 hours ago 16 days ago Long shot · 16%

Software Engineer, Principal

≈ $150k – $300k per year (Estimated) • Lead • 10+ years exp • Hybrid (Herndon, United States) • Bachelor's Degree • Full-Time • TS/SCI • Principal
TypeScript
JavaScript
Python
Python
FastAPI
Django
Databases
PostgreSQL
AI/ML
Knowledge Graph
Machine Learning
AI Agents
Frontend
React.js
D3.js
DevOps
Git
Docker
Linux
CI/CD
Kubernetes
Analytics
Plotly
Management
Agile
+10
Apply
Verified live · 2 hours ago 16 days ago Long shot · 16%

Full Stack Software Engineer - TS/SCI

≈ $143k – $262k per year (Estimated) • Senior • 8+ years exp • Hybrid (Herndon, United States) • Bachelor's Degree • Full-Time • TS/SCI • Staff
JavaScript
SQL
Python
Python
Flask
FastAPI
Django
Databases
NATS
RabbitMQ
Apache Kafka
Frontend
GraphQL
DevOps
GitLab CI
Ansible
Jenkins
Terraform
Git
Docker
GCP
Kubernetes
Azure
CI/CD
AWS
WebSockets
Prometheus
Grafana
Management
Agile
+17
Apply
gdit.com • HQ: Falls Church, United States • National Security • Digital Government • IT Consulting & Digital Transformation • Systems Integrators • 5000+ employees • Est. 2006 • Trust A • Hiring 1725, 46 new
HQ: Falls Church, United States • National Security • Digital Government • IT Consulting & Digital Transformation • Systems Integrators • 5000+ employees • Est. 2006 • Trust A • Hiring 1725, 46 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.
Amy Gilliland · President · decision-maker
Careers mailbox is known
Top 25% payVerified live · 1 day ago Visa sponsor 17 days ago Fading · 26%

Full-Stack Software Developer, TS/SCI with Polygraph

$106k – $144k per year • Junior • 1+ year exp • In office (Herndon, United States) • Full-Time • TS/SCI • Junior
Java
TypeScript
JavaScript
Frontend
Angular
DevOps
Jenkins
Linux
CI/CD
AWS
Puppet
SOAP
Terraform
Rest API
Management
Scrum
Agile
+6
Apply
Verified live · 1 day ago Visa sponsor 2 months ago Long shot · 13%

Cloud Software Engineer - TS/SCI w/ Poly

$159k – $215k per year • Staff+ • 10+ years exp • In office (Herndon, United States, 9am - 3pm) • Bachelor's Degree • Full-Time • TS/SCI • Staff
Ruby
C++
Java
Python
DevOps
CloudFormation
AWS Lambda
Amazon EC2
Amazon ECS
Platform Engineering
Amazon S3
Ansible
Jenkins
GitHub
Rest API
Windows
Docker
Linux
CI/CD
AWS
Management
Scrum
Agile
+13
Apply

HarmonyTech

harmonytech.com
harmonytech.com • HQ: Fairfax, United States • Systems Integrators • IT Consulting & Digital Transformation • 51-200 employees • Hiring 5
HQ: Fairfax, United States • Systems Integrators • IT Consulting & Digital Transformation • 51-200 employees • Hiring 5
HarmonyTech is an information technology company that delivers IT solutions for mission-driven clients, with expertise in enterprise content management and business process management products such as OpenText. Its job ads cover system architects, integration architects, web developers, database architects and program managers. The company is based in Fairfax, Virginia, United States.
No named decision-maker yet.
Careers mailbox is known
Verified live · 1 hour ago 21 days ago Fading · 33%

Junior Software Developer (.NET) - HarmonyTech

≈ $92k – $186k per year (Estimated) • Junior • In office (Herndon, United States) • Bachelor's Degree • Public Trust • Junior
C#
JavaScript
SQL
C#
.NET
DevOps
Windows
CI/CD
Management
Scrum
Agile
Apply

Markon Solutions

markonsolutions.com
markonsolutions.com • HQ: Falls Church, United States • Facilities Management • IT Consulting & Digital Transformation • Intelligence • 1001-5000 employees • Est. 2007 • Hiring 148, 4 new
HQ: Falls Church, United States • Facilities Management • IT Consulting & Digital Transformation • Intelligence • 1001-5000 employees • Est. 2007 • Hiring 148, 4 new
Markon Solutions is a government services contractor headquartered in Falls Church, Virginia, supporting the intelligence community, defense agencies and federal civilian customers with cyber, digital transformation, engineering and facilities management work. A repeated Washington Post Top Workplace, it staffs programs at Fort Meade, Annapolis Junction, Chantilly, McLean and Herndon, and supports naval nuclear work in West Mifflin and Niskayuna. Hiring covers software developers, systems and network engineers, data scientists, target analysts, civil, structural and electrical engineers, facility managers, space auditors and accountants.
No named decision-maker yet.
No careers mailbox known
Top 25% payVerified live · 1 hour ago 21 days ago Fading · 44%

Expert Applications Developer

$170k – $195k per year • Senior • 10+ years exp • In office (Herndon, United States) • TS/SCI • Senior
Node JS
TypeScript
Java
SQL
Python
JavaScript
Java
Hibernate
Databases
MySQL
PostgreSQL
Frontend
Angular
DevOps
GitLab
Jenkins
GitHub
Rest API
AWS
Management
Agile
+8
Apply
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.
Jeffrey MacLauchlan · Chief Financial Officer · decision-maker
John Mengucci · President & Chief Executive Officer · decision-maker
Herbert Karr · Co-Founder · founder
No careers mailbox known
Verified live · 1 day ago 23 days ago Likely open · 60%

Senior Software Architect

$113k – $238k per year • Staff+ • 7+ years exp • In office (Herndon, United States) • Bachelor's Degree • Full-Time • Nationals only • Architect
C++
Python
C++
Conan
DevOps
GitLab
Docker
Linux
CI/CD
Management
UML
Apply
Likely inactiveReposted ×5 3 months ago Long shot · 7%

Web Application Developer with Polygraph

$121k – $266k per year • Staff+ • 10+ years exp • In office (Herndon, United States) • Bachelor's Degree • TS/SCI • Staff
Node JS
C#
TypeScript
JavaScript
SQL
C#
ASP.NET Core
Databases
Oracle
Frontend
Material UI
Angular Material
Angular
React.js
DevOps
Rest API
CI/CD
Management
Confluence
+6
Apply

Bcore

bcore.com
bcore.com • McLean • Springfield • Saint Louis • Reston • Herndon • Intelligence • IT Consulting & Digital Transformation • 201-500 employees • Hiring 53, 2 new
McLean • Springfield • Saint Louis • Reston • Herndon • Intelligence • IT Consulting & Digital Transformation • 201-500 employees • Hiring 53, 2 new
Bcore is an American defense and intelligence contractor delivering enterprise IT, cloud, DevSecOps, systems engineering, software development and intelligence analysis to national security customers. Organised into Insight Solutions, Labs and Mission Services divisions, it staffs programs in Northern Virginia, including Herndon, Chantilly, McLean and Springfield, and in Saint Louis, Missouri, where many roles require TS/SCI clearance. Openings include ServiceNow, cloud, HPC and DevSecOps engineers, systems administrators, cyber security systems engineers, software and Python developers, UI and UX designers, technical writers and project managers.
No named decision-maker yet.
No careers mailbox known
Top 25% payVerified live · 4 hours ago 29 days ago Fading · 30%

Software Engineer

$175k – $195k per year • Senior • 5+ years exp • In office (Herndon, United States) • Bachelor's Degree • TS/SCI • Senior
Python
Databases
PostgreSQL
DevOps
Amazon EC2
VLAN
Ansible
Jenkins
Rest API
Linux
CI/CD
AWS
Management
Scrum
Agile
+4
Apply
Verified live · 4 hours ago 29 days ago Fading · 34%

Cloud Developer / Software Engineer

$175k – $195k per year • Staff+ • 11+ years exp • In office (Herndon, United States) • Bachelor's Degree • TS/SCI • Principal
PowerShell
Node JS
C#
TypeScript
Java
SQL
Python
JavaScript
C#
.NET
Databases
Oracle
MS SQL
Frontend
React.js
DevOps
Ansible
Jenkins
GitHub
Windows
Linux
GCP
Azure
AWS
Management
Jira
+13
Apply
Verified live · 4 hours ago 29 days ago Fading · 34%

NextGen Platform Software Engineer

$170k – $195k per year • Staff+ • 11+ years exp • In office (Herndon, United States) • Bachelor's Degree • TS/SCI • Principal
Node JS
TypeScript
SQL
Python
C#
JavaScript
Python
Django
C#
.NET
Databases
Oracle
Frontend
React.js
DevOps
Ansible
Jenkins
GitHub
Windows
Docker
Linux
GCP
Kubernetes
Azure
AWS
Management
Jira
+13
Apply
Machines can read this selection · checked 09:24 UTC
Backend Developer Jobs in Herndon
Frequently asked questions
How many Backend Developer jobs in Herndon are available on Alion?
There are currently 68 active listings from 23 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in Herndon pay?
The average salary is around $206,982 per year based on the current listings.
Are remote options available for Backend Developer jobs in Herndon?
Yes, many of these roles offer remote or hybrid work, and you can filter listings by remote, relocation and visa sponsorship.
How do I apply for Backend Developer jobs in Herndon?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.