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31 junior backend developer jobs at 20 companies in Frederick, MD

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
2mo
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Junior Backend Software Developer
Columbia, Maryland, United States
$115k-$160k/yr OnsiteFull Time
Visionist
Visionist: Provides software engineering and data analytics for national security.
3+ YOETop Secret/SCI clearance with polygraph; bachelor's degree; 3 years software development; Java, REST, Spring Boot; MongoDB; automated testing.
Java, Spring Boot, MongoDB, REST, Automated Testing
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1mo
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Geospatial Backend Developer – Multiple Positions at Junior/Mid/Senior Levels
Springfield or Vienna or St. Louis or Sun Prairie
OnsiteFull Time
NV5
NV5: Provides engineering, consulting, and geospatial solutions for infrastructure projects.
2+ YOEUS citizen with active/current Top Secret/SCI clearance, Bachelor's in CS/Engineering/GIS/STEM, 2+ years backend development experience using Python/Node.js/Java, ArcGIS Enterprise experience, containerization (Docker/Kubernetes), REST API design, and cloud familiarity.
Esri, ArcGIS Enterprise, ArcGIS Enterprise SDKs, Python, Node.js, Java, Docker, Kubernetes, PostgreSQL, PostGIS, Microsoft SQL Server, Azure, AWS, GCP, REST
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1mo
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Geospatial Backend Developer – Multiple Positions at Junior/Mid/Senior Levels
Springfield or Vienna or St. Louis
OnsiteFull Time
NV5
NV5: Provides engineering, testing, inspection, and infrastructure consulting services.
2+ YOERequires US citizenship and active Top Secret/SCI clearance, Bachelor’s in CS/Engineering/GIS or STEM, 2+ years backend experience, Python/Node.js/Java, ArcGIS Enterprise experience, containerization (Docker/Kubernetes), REST API design.
Esri, ArcGIS Enterprise, ArcGIS Enterprise SDKs, Python, JavaScript, Node.js, Java, REST APIs, Docker, Kubernetes, PostgreSQL, PostGIS, SQL Server, Azure, AWS, GCP
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2mo
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Mid-Level Backend Software Engineer
Gaithersburg, Maryland, United States
$87k-$157k/yr OnsiteFull Time
teKnoluxion
teKnoluxion: Providing technical engineering and cloud services to the intelligence community.
2+ YOEActive Top Secret/SCI clearance with CI poly eligibility; bachelor's or master's in computer science/software engineering; 2–8 years experience depending on degree; strong Java or Python, REST API, SQL, and Linux skills.
Java, Python, SQL, Linux, Apache Airflow, Spring Boot, Django, GitLab, Jenkins, Docker, OpenShift, AWS, Azure
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6d
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Junior Software Developer (Backend Focused)
Annapolis Junction, Maryland, United States
OnsiteFull Time
BigBear.ai
BigBear.aiNYSE: BBAI: AI-powered decision intelligence for complex mission environments.
3+ YOE3+ years software engineering with a technical Bachelor's (or 7+ years experience), strong Java and Spring Boot skills, MongoDB or similar DB experience, and automated testing experience; active TS/SCI with poly required.
Java, Spring Boot, MongoDB, Apache Kafka, Linux, Vue.js
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3mo
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Senior Software Engineer – Backend
Arlington, Virginia, United States
$120k-$206k/yr HybridFull Time
CaseGuard
CaseGuard: Provides AI-powered redaction software for video, audio, and documents.
6+ YOE6+ years backend experience with C#, ASP.NET Core, AWS, databases, and distributed systems.
C#, ASP.NET Core, Relational Databases, NoSQL, AWS, EC2, S3, Lambda, RDS, DynamoDB, SQS, SNS, EventBridge, Terraform, CloudFormation, Docker, Kubernetes
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1mo
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Software Development Engineer II- Back End
Redlands or St. Louis or Vienna
$97k-$162k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
2+ YOE2+ years backend engineering experience; professional experience with Python, Node.js/JavaScript, and Java; experience with ArcGIS Enterprise, containerization (Docker/Kubernetes), API design, and Top Secret/SCI clearance required; Bachelor's in STEM.
Python, Node.js, Java, ArcGIS Enterprise, ArcGIS Enterprise SDKs, Docker, Kubernetes, Azure, AWS, GCP, PostgreSQL, PostGIS, SQL Server
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1mo
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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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2w
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Junior Fullstack + AI Developer
Tysons, Virginia, United States
OnsiteFull Time
Cav
Cav: Continuous cyber assurance platform for high-reliability organizations.
0+ YOE0–2 years software development experience; familiarity with modern frontend frameworks, backend development (Python/Node.js/Java), REST APIs, relational/NoSQL databases; interest in AI/ML and LLMs; strong communication and problem-solving.
React, Vue, Angular, Python, Node.js, Java, PostgreSQL, MongoDB, PyTorch, TensorFlow, Hugging Face, LangChain, OpenAI APIs, Git, AWS, Azure, Google Cloud, Docker
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2d
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Software Engineer II
Tysons, Virginia, United States
$88k-$123k/yr HybridFull Time
Alarm.com
Alarm.comNasdaq: ALRM: Provides cloud-based smart home security and automation solutions.
2+ YOEBachelor's degree or equivalent experience, 2+ years professional software development, strong OOP skills (C# preferred), backend/SQL experience, familiarity with modern JS frameworks and unit testing.
C#, .NET, SQL Server, Kafka, Ember.js, Angular, React, iOS, Android
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3d
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Software Engineer III
Bethesda or Waltham
$112k-$176k/yr HybridFull Time
ZoomInfo
ZoomInfoNASDAQ: GTM: Provides B2B contact data and sales intelligence software.
2+ YOEBackground in backend development with Java and Node.js, experience with Kafka, SQL Server/MongoDB, RESTful APIs, cloud (AWS/GCP), Docker/Kubernetes/ECS, Jira and VS Code; Masters+2yrs or Bachelors+4yrs.
Java, Node.js, NestJS, Kafka, SQL Server, MongoDB, Jira, VS Code, AWS, GCP, Docker, Kubernetes, ECS
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14h
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Software Engineer, Mid
Herndon, Virginia, United States
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
2+ YOE2+ years OOP experience (Java/JEE), backend frameworks (Spring/Spring Boot), REST API development, Linux CLI, NiFi; TS/SCI clearance with polygraph required; ability to obtain DoD 8570 certification (Security+ or CISSP) within 6 months.
Java, JEE, Spring Framework, Spring Boot, REST, Linux, NiFi, MongoDB, Jira, Confluence, Git, GitLab, Apache Kafka
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2w
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Software Engineer – Full Stack (Java, AWS, Angular, AI)
Arlington, Virginia, United States
$116k-$135k/yr HybridFull Time
Publicis Groupe
Publicis GroupeEuronext Paris: PUB: Global communications, advertising, and digital transformation holding.
Experience in Java backend and Angular frontend development, AWS production deployments, microservices and REST API design, familiarity with Docker/Kubernetes, CI/CD, SQL/NoSQL databases, and AI/ML application concepts.
Java, Spring Boot, Spring Cloud, AWS, ECS, EKS, Lambda, S3, RDS, DynamoDB, Azure, Angular, HTML5, CSS3, JavaScript, TypeScript, OpenAI, Azure AI Services, LangChain, vector databases, embeddings, Docker, Kubernetes, CI/CD, Bash, MySQL, MongoDB, Cassandra, Kafka, RabbitMQ, AWS API Gateway, Istio, Terraform, CloudFormation
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2mo
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Jr Data Integration Developer
Silver Spring, Maryland, United States
$90k-$110k/yr HybridFull Time
Science and Technology Corporation
Science and Technology Corporation: Provides scientific, engineering, and technical services to government agencies.
1+ YOEBachelor's degree; 1–2 years web app and backend microservices; AWS; REST APIs; JavaScript/TypeScript; React/Angular/Vue; Docker/EKS; HTML/CSS; Git and CI/CD.
AWS, API Gateway, S3, DynamoDB, CloudFront, Lambda, Docker, EKS, React, Angular, Vue.js, HTML5, CSS3, Git, CI/CD
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6d
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Data Integration Engineer (Systems Engineer, Sr)
Chantilly, Virginia, United States
OnsiteFull Time
Redwire
RedwireNYSE: RDW: Manufactures infrastructure and hardware components for diverse space missions.
1+ YOEU.S. eligibility for DoD clearance, STEM bachelor's or equivalent, 1+ years backend/data services experience, API design (REST/GraphQL), Python/C++/Rust, PostgreSQL/Neo4j/doc DBs, CI/CD and data/security fundamentals.
REST, GraphQL, Python, C++, Rust, PostgreSQL, Neo4j, gRPC, SOAP
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2mo
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Associate Software (Full-Stack) Developer
Orlando or Washington
$90k-$115k/yr HybridFull Time
VTG
VTG: Provides engineering and digital modernization solutions for national security.
1+ YOEBachelor’s degree in Computer Science, Software Engineering, or related field; 1-5 years of relevant experience; backend in Python; frontend with React; strong Git, Docker; familiarity with Linux and Bash; DoD Secret clearance required (or ability to obtain).
Python, React, Git, Docker, Docker Compose, AWS, Linux, Bash
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3d
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Full Stack Software Engineer
Arlington or New York
$160k-$210k/yr HybridFull Time
Quartermaster AI
Quartermaster AI: Deploying AI-powered sensor networks for maritime domain awareness.
2+ YOE2+ years full-stack experience preferred. Strong React and JavaScript/TypeScript, Spring Boot backend, PostGIS, AWS (S3,Lambda,ECS/EKS), container/Kubernetes, Git, CI/CD, and real-time data handling skills.
React, JavaScript, TypeScript, Spring Boot, PostGIS, AWS, S3, Lambda, ECS/EKS, Kubernetes, Git, WebSockets, SSE, Mapbox, Leaflet, Deck.gl
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2w
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AI Engineer 1 - Platform Integration & AI/Data
Washington, District of Columbia, United States
$80k-$150k/yr OnsiteFull Time
The Nuclear Company
The Nuclear Company: Deploys standardized nuclear reactors for utility-scale energy generation.
0+ YOEBachelor's in computer science or equivalent, 0-2 years experience; strong backend fundamentals (Python/TypeScript/Go/Java), exposure to CI/CD, version control, REST APIs, and basic DevOps; AI project experience and strong communication.
Palantir Foundry, Databricks, Snowflake, Python, TypeScript, Go, Java, CI/CD, REST APIs
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3w
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EY-Parthenon - Strategy and Execution - Growth Platforms - Software Engineer - Sr Assoc/Consultant (New York, NY, US, 10001-8604)
New York or Atlanta or Boston or Chicago or Dallas or Denver or Detroit or Houston or Los Angeles or McLean or Hoboken or Philadelphia or San Francisco or Seattle
$130k-$185k/yr HybridFull Time
EY
EY: Global firm providing audit, tax, and professional consulting services.
1.5+ YOEBachelor's degree plus ~2 years related experience (or graduate degree plus ~18 months). Experience with backend/full‑stack development (Python, Java, Scala, TypeScript), cloud (AWS/GCP), containerization, IaC, LLM integration, and productionizing AI tooling; strong communication and client‑facing skills.
Python, Java, Scala, TypeScript, AWS, GCP, Microsoft Copilot
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2w
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Database Engineer – GSE (Ground Support Engineer)
Sterling, Virginia, United States
$61k-$114k/yr OnsiteFull Time
Trident Systems
Trident Systems: Develops high-performance electronics for space and defense.
0+ YOEBachelor's in a technical discipline or equivalent, 0-2 years database engineering experience, strong relational DB experience (PostgreSQL, MySQL, SQL Server), schema design, performance tuning, and backend integration skills.
PostgreSQL, MySQL, SQL Server, Python, C#, Java, JavaScript, PowerShell, ERP, PLM, MES
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