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5,169 junior developer jobs at 1,373 companies in Washington, DC

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Junior Developer
Fort Meade, Maryland, United States
OnsiteFull Time
Oneida Professional Services
Oneida Professional Services: Tribally owned professional-services and staffing provider delivering training, research, engineering, and administrative support to government clients.
Experience developing enterprise software, proficiency with Microsoft .NET, relational database design, SDLC knowledge, web application development, security principles, Section 508 accessibility, and technical documentation.
Microsoft .NET, Microsoft SQL Server, C#, ASP.NET, MVC, .NET Core, Blazor, DevSecOps, CI/CD
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1mo
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Junior Engineer 0
Annapolis Junction, Maryland, United States
$96k-$134k/yr OnsiteFull Time
RealmOne
RealmOne: Advanced technology services for national security and defense missions.
1+ YOEMinimum 1 year engineering experience or BS in Engineering/Computer Science/Math; active Security Clearance with appropriate polygraph; ability to support 12-hour rotating shifts.
Confluence
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3mo
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Junior Developer
Rosslyn, Virginia, United States
$139k/yr OnsiteFull Time
ActioNet
ActioNet: Woman-owned IT solutions and managed services provider.
0+ YOEBachelor's in CS/IT, 0–3 years software development experience, knowledge of Python/Java/C#, familiarity with Agile/Scrum/SAFe, Secret clearance, strong communication and problem-solving; cloud and DevOps certifications preferred.
Python, Java, C#, Agile, Scrum, SAFe, GitHub, Docker, AWS, Microsoft Azure
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Junior Developer
Arlington, Virginia, United States
$75k-$157k/yr RemoteFull Time
NTT DATA
NTT DATATokyo Stock Exchange: 9613: Global digital business and IT services provider.
3+ YOERequires 3 years of Python experience, 2 years of software development, and 1 year each with RESTful APIs, Git/GitHub, databases, and Linux. Must obtain or maintain Public Trust clearance.
Python, RESTful APIs, Git, Public Trust Clearance, Java, JavaScript, Node.js, OpenAPI, PostgreSQL, MySQL, MongoDB, DynamoDB, Linux, React, GitHub, AWS, GitHub Actions, GitLab CI, Jenkins, Docker, HTML, CSS
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Junior Software Developer
Chantilly, Virginia, United States
$85k-$114k/yr OnsiteFull Time
ECS Group of Companies
ECS Group of Companies: Professional engineering firm specializing in geotechnical and environmental services.
0+ YOEBachelor's degree in computer science or related field, or equivalent experience; 0-5 years with degree or 2-5 years without degree as developer using Microsoft technology stack; certifications in Microsoft Development, Agile, and SQL Server preferred.
Microsoft SQL Server, Microsoft technology stack
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Junior Field Engineer
Baltimore, Maryland, United States
$89k-$98k/yr FieldFull Time
AEVEX Aerospace
AEVEX AerospaceNYSE: AVEX: U.S. defense technology delivering autonomous unmanned systems, mission software, ISR, and electronic-warfare solutions to national-security customers.
1+ YOEBachelor's degree in engineering technology, electrical, mechanical, mechatronics or related field; 1+ years engineering support experience; ability to obtain Secret DoD clearance; U.S. citizenship; ability to deploy overseas 90-120 days at a time.
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Junior Software Developer
Vienna or Chantilly
$135k-$165k/yr HybridFull Time
Bridge Core
Bridge Core: Private national-security technology serving U.S. defense and intelligence agencies with engineering, analytics, cloud, and mission services.
0+ YOE0-2+ years full-stack development experience; Bachelor's degree in relevant discipline (experience may substitute); understanding of databases, APIs, agile environment; TS/SCI with Poly clearance required.
Python, Groovy, JavaScript, TypeScript, React, Java, Node, PostgreSQL, MySQL, DynamoDB, CrafterCMS, AWS
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3mo
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Junior Application Developer
Denver or Springfield or St. Louis or Sterling
$53k-$106k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provider of specialized IT and mission-critical government services.
0+ YOEBachelor's degree in computer science, software engineering, or related discipline; 0–3 years of software development experience; Java or Python experience; TS/SCI clearance with polygraph; web, database, and Agile knowledge.
Java, Python, Git, CI/CD, ArcGIS, GeoServer, OpenLayers, Cesium, Esri ArcGIS Pro, Esri ArcGIS Enterprise
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Junior Java Developer
Reston, Virginia, United States
$93k-$102k/yr HybridFull Time
TechSur Solutions
TechSur Solutions: Privately held federal IT consulting firm delivering AI-native modernization and digital services to U.S. government agencies.
2+ YOE2+ years open-source web development; Java, SQL, GoLang; databases Oracle, MySQL, PostgreSQL, AWS Aurora, NoSQL; frameworks Spring Boot, Hibernate; test frameworks; tools; web technologies; Bachelor's in computer science or related field.
Java, SQL, GoLang, Oracle, MySQL, PostgreSQL, AWS Aurora, NoSQL, Cassandra, DynamoDB, Spring Boot, Hibernate, Spring DAO, Junit, Mockito, Playwright, Eclipse, Visual Studio, Jprofiler, Insomnia, Postman, Git, Github, JSON, AJAX, XML, XSLT, HTTP, JavaScript, Typescript, HTML5, CSS3, React, Angular, Cucumber, Selenium, Jenkins
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Junior Fullstack Developer
Washington, District of Columbia, United States
HybridFull Time
Fusion Technology
Fusion Technology: HUBZone IT contractor providing software, cybersecurity, cloud, biometric, and systems-engineering services to U.S. government agencies.
2+ YOEActive Top Secret clearance; Bachelor's degree with 2 years related experience; 2+ years developing in Java or similar; ability to design, develop, and test software systems.
Java
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Junior Software Engineer
Washington, District of Columbia, United States
$45k-$55k/yr HybridFull Time
Koniag Government Services
Koniag Government Services: Federal government contractor providing enterprise, professional, and operational solutions.
Bachelor's degree in a relevant field, Python experience, familiarity with machine learning, LLMs, vector databases, automated testing, and software development; TS/SCI/Yankee White clearance required.
Python, PyTorch, TensorFlow, Scikit-learn, LangChain, Hugging Face, Celery, Temporal, Docker, Kubernetes, Git, AWS SageMaker, Bedrock, LLMs, RAG
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Junior Software Engineer
Annapolis Junction, Maryland, United States
$70k-$190k/yr OnsiteFull Time
Belay Technologies
Belay Technologies: Private SDVOSB providing IT and engineering services to the Department of Defense and commercial clients.
3+ YOETS/SCI clearance with polygraph; 3 years experience or B.S. in technical discipline plus 4 additional years; full stack development with AI workflows; JavaScript and Python; experience with corporate services in high side environment.
JavaScript, Python, Linux
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Junior Developer
McLean, Virginia, United States
$97k-$165k/yr OnsiteFull Time
BAE Systems
BAE SystemsLSE: BA.: Global defense, aerospace, and security technology.
4+ YOEBachelor's degree in engineering, computer science, or related field, or equivalent experience; cybersecurity and automation experience; AI/R&D experience; ability to obtain and maintain security clearance.
Python, JavaScript, TypeScript, Rust, Java, C++, Docker, Kubernetes, Terraform, Ansible, ServiceNow, Salesforce, Splunk, Microsoft Azure, CI/CD, DevSecOps, Large Language Models (LLMs), MCP
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2mo
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Junior Automation Developer (UiPath)
Alexandria, Virginia, United States
$70k-$126k/yr RemoteFull Time
Leidos
LeidosNew York Stock Exchange: LDOS: Public defense and technology contractor serving government and commercial customers with digital, health, infrastructure, and engineering solutions.
2+ YOEBachelor's degree or equivalent experience, 2+ years of RPA and UiPath development, programming and SQL knowledge, API integration experience, and required cloud or UiPath certification.
UiPath, UiPath Studio, UiPath Orchestrator, REFramework, Ansible, AWS console, Elastic, AWS, Azure, Jira, Confluence, Git, Bitbucket, .NET, VB.NET, C#, SQL, REST, SOAP, Automation Cloud, AI Center, Action Center, Test Suite, CI/CD
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2mo
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Junior Database Developer
Reston, Virginia, United States
$80k-$95k/yr HybridFull Time
Inadev
Inadev: Private technology services firm delivering digital, cloud, data, AI, and engineering solutions for government and commercial clients.
3+ YOERequires 3+ years of database development, strong SQL and data modeling, AWS relational or NoSQL database experience, performance tuning, data security, U.S. citizenship, and ability to obtain government clearance.
SQL, AWS, Aurora, Amazon RDS, DynamoDB, Amazon S3, Redshift
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Junior Software Developer
King George, Virginia, United States
$75k-$110k/yr HybridFull Time
SimVentions
SimVentions: Employee-owned defense contractor developing engineering and technology solutions for U.S. military and government customers.
2+ YOE2+ years software development experience; experience with front-end and back-end languages; ability to obtain Secret clearance; US citizenship; Bachelor's degree or 5+ years experience in lieu of degree.
JavaScript, React, Java, Python, C#, C, C++, .NET, NodeJS
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3mo
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Software Engineer, Junior
Springfield, Virginia, United States
$53k-$108k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Global firm providing management, technology, and engineering consulting services.
3+ YOE3+ years software development experience (Java or JavaScript) using Agile methods; experience with full-stack development, automated testing, and working with cloud-deployed applications; Top Secret clearance required.
Java, JavaScript, Red Hat, Windows Server, Oracle, JMeter, Jenkins, Swagger, Nexus, Apigee, GitHub, GitLab, Bash, Curl, XML, JSON, SQL, Amazon Web Services (AWS)
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Junior Web Developer
Dahlgren, Virginia, United States
$60k-$80k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Global provider of engineering, technical, and mission-critical services.
3+ YOE3+ years web development experience with PHP, JavaScript, CSS3, HTML5, T-SQL/MS SQL Server, IIS; active Secret clearance with SSBI or ability to obtain interim; DoD 8570 IAT Level 2 and IT Level 1 certified or ability to obtain.
PHP, JavaScript, CSS3, HTML5, T-SQL, MS SQL Server, IIS
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