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4,021 junior developer jobs at 1,401 companies in Frederick, MD

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Junior Developer
Washington, District of Columbia, United States
HybridFull Time
Savvee
Savvee: Provides IT and program management services to federal agencies.
2+ YOEBachelor’s degree in Computer Science or related IT field; 2+ years in IT, application development, maintenance, and debugging; experience with Angular, C#, .NET, SQL, HTML, Bootstrap, CSS, JavaScript, and Less; ability to obtain Public Trust clearance; strong teamwork and communication.
Angular, C#, .NET, SQL, HTML, Bootstrap, CSS, JavaScript, Less
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2mo
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Junior Software Engineer
Columbia, Maryland, United States
$115k-$160k/yr OnsiteFull Time
Visionist
Visionist: Provides software engineering and data analytics for national security.
3+ YOE3 years software development, strong Python, production apps, AI concepts, Kafka/Elasticsearch, bachelor’s in technical field.
Python, Kafka, Elasticsearch, PydanticAI, LangGraph, DeepAgents
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1mo
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Junior Application Developer
Annapolis Junction or Columbia
$140k-$190k/yr HybridFull Time
Freedom Technology Solutions Group
Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.
3+ YOEActive TS/SCI with Polygraph; Bachelor in CS/Software Eng/IS plus 3 years of software dev; Master’s plus 1 year; 4-year substitution option; Python, Django, Docker, AWS, Java, JavaScript, ReactJS/Vue.js; Agile experience.
Python, Django, Docker, AWS, Java, JavaScript, ReactJS, Vue.js, PostgreSQL, HTML, CSS
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1mo
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Junior Software Engineer
Annapolis Junction, Maryland, United States
$70k-$190k/yr OnsiteFull Time
Belay Technologies
Belay Technologies: Provides specialized technology and engineering services to the DoD.
0+ YOEEntry-level software engineer with Python proficiency, production experience, and understanding of AI concepts and streaming data pipelines.
Python, Apache Kafka, Elasticsearch, PydanticAI, Langgraph, DeepAgents, APIs, Software development tooling
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Junior Software Engineer
Chantilly, Virginia, United States
$94k-$198k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
0+ YOEBachelor's degree in CS/Software Engineering/Information Systems; TS/SCI with Polygraph; strong software fundamentals; experience with Java, C#, Python, or JavaScript; willingness to learn enterprise platforms and PeopleSoft.
Java, C#, Python, JavaScript, PeopleSoft, Oracle, Git
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2mo
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Junior Engineer
Annapolis Junction, Maryland, United States
$48-$58/hr OnsiteFull Time
EverWatch
EverWatchNYSE: BAH: Provides advanced software and intelligence solutions for government agencies.
1+ YOE1+ year IT/helpdesk experience; level 1 restoration; capture requirements; support dev teams; coordinate outages; shift-able; liaison with leadership and government stakeholders; TS/SCI clearance with polygraph; HS diploma or GED.
Confluence, SOPs
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Junior Engineer
Washington, District of Columbia, United States
OnsiteFull Time
Engineering Services Network
Engineering Services Network: A small, veteran-owned defense contractor delivering engineering and technical services.
4+ YOEBachelor's degree in a technical field or 4 years Navy combat systems/engineering experience; active DoD SECRET clearance or ability to obtain; on-site in Washington, DC.
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1mo
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Junior Engineer
Washington, District of Columbia, United States
$60k-$170k/yr OnsiteFull Time
JRAD
JRAD: Provides technical research and defense support to federal agencies.
5+ YOEBachelor's in web design, CS, math, or engineering; TS clearance; 5 years modeling/visualization; HTML/CSS/XML; WordPress/CMS; MS Office.
HTML, CSS, XML, WordPress, CMS, Office Suite
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1mo
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Junior Developer
Annapolis Junction, Maryland, United States
$77k-$128k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
1+ YOEBachelor's in IT-related field and 1+ years software development experience. Must have active TS/SCI with polygraph. Proficiency in Python, Git, SQL, HTML/CSS/JavaScript; experience with Docker, Ansible, React, and unit testing frameworks.
Python, React.js, Docker, Ansible, Git, pytest, JavaScript, TypeScript, SQL, PostgreSQL, MySQL, SQLite, HTML5, CSS3, Docker Compose, GitLab CI, Jest, Vue.js, Angular, Node.js, AWS, Azure, GCP, Linux
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2w
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Junior Developer
Rosslyn, Virginia, United States
$139k/yr OnsiteFull Time
ActioNet
ActioNet: Provides IT modernization and cybersecurity services for government agencies.
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 Data Integration Developer
McLean, Virginia, United States
HybridFull Time
BLN24
BLN24: Delivers digital innovation and strategic communications for federal agencies.
1+ YOEBachelor's in CS/SE/IS or related field; 1–2 years backend/API integration; REST APIs; AWS; JS/TS; Docker/Kubernetes; Git/CI/CD.
REST API Development, AWS Cloud Services, JavaScript/TypeScript, React/Angular/Vue.js, Docker & Kubernetes (EKS), AWS Lambda / API Gateway, Data Transformation & Validation, CI/CD Pipelines, Git Version Control
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2mo
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Junior Structural Engineer
Rockville, Maryland, United States
$65k-$85k/yr OnsiteFull Time
Sheladia Associates
Sheladia Associates: Engineering and development consultancy for global infrastructure projects.
0+ YOEBachelor's degree in civil engineering; 0–4 years experience; AutoCAD, Civil 3D; GIS; Revit preferred; ENERCALC/STAAD-Pro advantageous; strong math and communication skills.
AutoCAD, Civil 3D, GIS, Revit, ENERCALC, STAAD-Pro, Microsoft Office
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Junior Network Engineer
Sterling, Virginia, United States
OnsiteFull Time
Secunetics
Secunetics: Optimizes and secures enterprise network infrastructures with intelligence services.
1+ YOE1+ years network administration; degree in CS/EE/CE; strong understanding of networking protocols; scripting with Python/Bash; CI/CD experience; routing tech (OSPF/BGP/EIGRP/EVPN); IT performance and security monitoring; excellent communication.
LDAP, SAML, OAuth 2.0, SSH, SFTP, SCP, SNMPv3, Netflow, SMTP, Python, Bash, CI/CD, TCP/IP, traffic analysis, TAPs, traffic brokers, OSPF, BGP, EIGRP, EVPN, SDLC, systems engineering, IT performance management, IT operations, operational monitoring, security monitoring, KPI
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1w
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Software Developer/Engineer - Junior
Fairfax, Virginia, United States
$80k-$95k/yr RemoteFull Time
ASM ResearchNYSE: ACN: Provides IT and healthcare services to government agencies.
0+ YOEBachelor's or equivalent experience; 0–3 years software development with at least one modern language; familiarity with Infrastructure-as-Code tools; must meet DoD 8140 and hold active Secret clearance; U.S. citizenship required.
Java, C#, Python, JavaScript, Terraform, Ansible, HTML, CSS
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1w
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Junior Software Developer
Washington or Maryland or Virginia
OnsiteFull Time
Akumen
Akumen: Provides technology, cybersecurity, and data services to federal agencies.
2+ YOEBachelor's or equivalent, 2+ years software development experience, proficiency with C#/.NET or Java, JavaScript frameworks (React/Angular), Microsoft Azure and Azure DevOps, RESTful APIs, and relational databases.
C#/.NET, Java, JavaScript, React, Angular, Microsoft Azure, Azure DevOps, RESTful APIs, SQL Server, PostgreSQL, ASP.NET Core, Spring Boot, Docker, Kubernetes, Terraform, Bicep, PowerShell, Python, Bash, CI/CD pipelines
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2w
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Junior Software Developer
Annapolis Junction, Maryland, United States
$55k-$106k/yr OnsiteFull Time
Nightwing
Nightwing: Provides advanced cyber and intelligence solutions for national security.
2+ YOE2+ years Python and Java development, IDA/Ghidra plugin/script experience, x86 assembly, testing with JUnit/Pytest, familiarity with LLM inference tooling (Langchain, Langchain4j), grpc, Agile experience, BS in Computer Science related field, willingness to obtain security clearance.
Python, Java, IDA, Ghidra, x86 Assembly, JUnit, Pytest, Langchain, Langchain4j, Embedding Stores, MCP Servers, gRPC
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1mo
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Junior Cloud Engineer (Hybrid)
Herndon, Virginia, United States
$80k-$95k/yr HybridFull Time
ISI Enterprises
ISI Enterprises: Cybersecurity compliance and managed services for defense contractors.
2+ YOEHands-on with Microsoft 365 and Azure; device management, client onboarding, cloud setup; basic migration concepts; strong documentation and communication; security clearance required.
Microsoft 365, Azure, Intune, SharePoint, Purview, Defender, Entra ID, PowerShell
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1mo
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Junior Software Engineer
Chantilly, Virginia, United States
$94k-$198k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
TS/SCI with Polygraph required; bachelor’s degree in CS/SE/IS or equivalent; strong software development fundamentals; experience with Java, C#, Python, or JavaScript; understanding of OOP, APIs, SQL, and Git; strong analytical and communication skills.
Java, C#, Python, JavaScript, SQL, Git, PeopleSoft, Workday, ServiceNow, Salesforce, Oracle
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2w
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Junior Software Engineer
Reston, Virginia, United States
$90k-$122k/yr HybridFull Time
Verisign
VerisignNASDAQ: VRSN: Provides internet domain name registry and DNS infrastructure services.
2+ YOE2+ years software development experience, BS in Computer Science or equivalent, proficiency in C/C++/Rust and Python, Linux, CI/CD and infrastructure automation (Terraform, Ansible, Puppet, OpenStack), strong CS fundamentals and communication skills.
Terraform, Ansible, Puppet, OpenStack, Jenkins, Groovy, GitHub, Python Behave, Cucumber, C, C++, Rust, Python, Linux, tcpdump, Docker, Kubernetes
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1mo
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Junior Systems Engineer, TS/SCI w/Poly
Fort Meade, Maryland, United States
$66k-$106k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
Clearance: Active TS/SCI with polygraph; Bachelor's degree in technical field or 4 years of relevant experience; Security+ certification; software/system development knowledge.
MS Word, PowerPoint, Visio
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