41 java back end developer jobs at 23 companies in Leonardtown, MD
1mo
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Senior Backend Engineer - Java
United States or Tampa or Boston or Atlanta or New York City or Columbus or Chicago or Philadelphia or Raleigh or Charlotte or Minneapolis or Dallas or Washington D.C. or Austin or Miami or Newark
$152k-$194k/yr RemoteFull Time
8+ YOE8+ years experience with Java/Spring Boot, JPA/Hibernate, relational databases; experience designing event-driven microservices, strong testing practices, AI-assisted development familiarity, BA/BS or equivalent.
Java 17, Java 21, Spring Boot 3.x, JPA/Hibernate 6, Postgres, Kafka, DynamoDB, Redis, OpenSearch, AWS, Docker, Kubernetes, Datadog, ArgoCD, TeamCity, Claude Code, Cursor, Codex, Model Context Protocol (MCP), GitHub, SonarQube
1w
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Back-End Developer
Springfield, Virginia, United States
$100k-$145k/yr OnsiteFull Time
8+ YOEBachelor's degree,8+ years back-end experience,active DoD clearance (Top Secret/SCI),expertise in server-side languages,APIs,databases,security practices for classified environments.
Python, Java, C#, Ruby, Docker, Kubernetes, Django, Spring, .NET, MongoDB, Cassandra, REST, GraphQL, AWS, Azure, GCP, Node.js, PostgreSQL, MySQL, Kafka, RabbitMQ, Redis, Memcached, Terraform, Ansible, AWS Lambda, Azure Functions
1mo
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Back End Developer
McLean or Fort Belvoir
$87k-$198k/yr OnsiteFull Time
Experience building enterprise Java applications; familiarity with Spring or Quarkus, Git and GitLab CI/CD; TS/SCI clearance required; ability to obtain Security+ within 6 months; HS diploma or GED required.
Java, Spring, Quarkus, Git, GitLab CI/CD, Docker, Kubernetes, Python, Bash, Kafka Streams, Neo4j, Kafka, Spark, Advana
2mo
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Backend Software Developer
Springfield or Vienna or St. Louis
OnsiteFull Time
2+ YOE2+ years backend development; Node.js, Python/Java; REST APIs; ArcGIS Enterprise; Docker/Kubernetes; on-site; Top Secret clearance.
Node.js, Python, Java, ArcGIS Enterprise, Docker, Kubernetes, REST APIs, PostgreSQL, PostGIS, SQL Server
1w
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Backend Engineer
Washington, District of Columbia, United States
$121k-$165k/yr OnsiteFull Time
5+ YOE5+ years building production backend systems and APIs; strong skills in backend languages; experience with databases, cloud (AWS preferred), CI/CD, testing, security, and reliability.
Python, Go, Java, TypeScript, AWS, CI/CD, NOS
2mo
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Backend Developer (TS/SCI Required)
Alexandria, Virginia, United States
$150k-$190k/yr OnsiteFull Time
10+ YOE10+ years software development; 5+ years as software architect; TS/SCI with counterintelligence polygraph; Bachelor in CS; cloud experience (AWS/Azure/Google Cloud); Python; Go/Rust/Java; knowledge of auth, caching, and distributed systems.
Python, Go, Rust, C/C++, Java, Kubernetes, LDAP, SAML, OAuth, JWT, AWS, Azure, Google Cloud
5d
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Knowledge Engineer Manager - Back-end Engineer
Seattle or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York City or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$80k-$294k/yr HybridFull Time
5+ YOEMinimum 5 years in knowledge graph hydration, ontology mapping, graph and relational databases, vector databases, Python or Java, and REST API development; bachelor's degree or equivalent experience required.
RDF, OWL, SKOS, RDFS, SPARQL, R2RML, CSVW, SHACL, GraphDB, Stardog, Neo4j, Amazon Neptune, PostgreSQL, MySQL, SQL Server, Pinecone, Weaviate, Milvus, Qdrant, Elasticsearch, OpenSearch, Python, Java, SQL, JSON, XML, CSV, REST APIs, Apache NiFi, Airflow, Docker, Kubernetes, Helm, AWS Neptune, Azure Cosmos DB, GCP, Kafka, RabbitMQ, Git, GraphQL APIs, D3.js, Cytoscape.js, Terraform
2mo
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Federal Back-End Engineer
Washington or United States
RemoteFull Time
7+ YOEBachelor's in CS or related,7+ years software engineering,expert SQL,cloud (AWS/Azure/GCP),Docker/Kubernetes,GraphQL/ETL experience,ability to obtain/maintain TS clearance.
ETL, GraphQL, Python, Java, Go, Scala, C++, TypeScript, AWS, Azure, GCP, Docker, Kubernetes, SQL, PostgreSQL, Neo4j
1w
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Senior Backend Software Engineer (USA Remote)
Washington, District of Columbia, United States
$112k-$187k/yr RemoteFull Time
5+ YOE5+ years backend development experience, strong Java (preferred) or Python/Node.js skills, AWS Lambda/API Gateway/DynamoDB experience, serverless and microservices knowledge, Git and CI/CD (github actions), mentoring ability.
AWS Lambda, API Gateway, DynamoDB, Java, Python, Node.js, Git, github actions
2mo
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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
2+ YOEActive US citizenship with TS/SCI, bachelor\u0002s degree in STEM, 2+ years backend experience, Python/Node.js/Java, ArcGIS Enterprise integration, containerization (Docker/Kubernetes), API and geoprocessing experience.
Python, Node.js, Java, ArcGIS Enterprise, Docker, Kubernetes, PostgreSQL/PostGIS, SQL Server, Azure, AWS, GCP
3w
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Senior Software Engineer, Backend FinPlatform
New York City or San Francisco or Salt Lake City or Los Angeles or Seattle or Austin or Washington or Philadelphia or San Diego or Chicago or Atlanta or Australia or Canada or South America
$146k-$215k/yr RemoteFull Time
6+ YOE6+ years software engineering experience, 4+ years with Java, experience with backend systems, APIs, data pipelines, AWS, and distributed teams.
Java, Spring, Gradle, JUnit, JVM, AWS, EKS, Aurora RDS, Elasticache, DynamoDB, GitHub Actions, git, DataDog, Snowflake, CDK, Terraform
3w
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Staff Software Engineer (Backend) - Billing Platform *HYBRID*
Palo Alto or Falls Church or Frisco or Washington or Baltimore or Dallas or Bethesda or Fort Worth
$110k-$230k/yr HybridFull Time
8+ YOE8+ years software development experience with large-scale systems; proficiency in Java/Kotlin/Golang, SQL/NoSQL, Kafka, Spark, Airflow, cloud and DevOps practices; strong communication and system design skills.
Java, Kotlin, Golang, SQL, NoSQL, Kafka, Spark, Airflow
2mo
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Software Engineer II - Backend/Platform Agentic AI
Arlington, Virginia, United States
$106k-$169k/yr OnsiteFull Time
Strong Java and Spring Boot backend experience, production AI/LLM integration, microservices and REST API design, CI/CD and observability, cloud (AWS or Azure), testing discipline, and production operations experience.
Java, Spring Boot, Python, LangGraph, LangChain, Databricks, Snowflake, OpenAI, Anthropic, Azure OpenAI, Kubernetes, Docker, AWS, Azure, REST APIs, CI/CD, RAG
1mo
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Software Development Engineer II – Back-End (Mission-Focused | ArcGIS)
Redlands or St. Louis or Washington or Vienna
$97k-$162k/yr OnsiteFull Time
2+ YOE2+ years backend engineering experience with Python, JavaScript/Node, or Java; REST API and service architecture experience; ArcGIS Enterprise integration; containerization (Docker/Kubernetes); active Top Secret security clearance (SCI eligible); Bachelor's in STEM.
Node.js, Python, Java, ArcGIS Enterprise, ArcGIS Enterprise SDKs, Docker, Kubernetes, Azure, AWS, GCP, PostgreSQL, PostGIS, SQL Server
2mo
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Software/Web Developer
Springfield, Virginia, United States
OnsiteContract
3+ YOEBachelor's degree or equivalent, 3+ years software/web development experience, proficiency with JavaScript/TypeScript/Python/Java/C#/PHP, front-end frameworks (React/Angular/Vue), back-end APIs and databases, strong communication and problem-solving.
JavaScript, TypeScript, Python, Java, C#, PHP, React, Angular, Vue, RESTful APIs, SQL, NoSQL, AWS, Azure, Google Cloud, CI/CD, Docker, Kubernetes
3w
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Full Stack Developer (Cleared)
Washington, District of Columbia, United States
OnsiteContract
3+ YOEBachelor's or equivalent, 3+ years full stack development, front-end (React/Angular/Vue), back-end and REST API experience, JS/TypeScript/Java/Python/C#, database experience, strong debugging and communication skills.
React, Angular, Vue, Node.js, Java, Python, .NET, MySQL, PostgreSQL, MongoDB, AWS, Azure, Google Cloud Platform, Jenkins, GitHub Actions, GitLab CI, Docker, Kubernetes
1mo
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Software Developer
Dahlgren, Virginia, United States
$69k-$158k/yr HybridFull Time
2+ YOE2+ years software development experience, ability to design and implement full-stack solutions, experience with back-end and front-end languages, ability to obtain Secret clearance, bachelor’s degree or 5+ years of software engineering experience in lieu of degree.
Java, Python, C#, C/C++, .NET, JavaScript, React, NodeJS
1mo
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Software Engineer- Application Development
San Diego or Washington
$95k-$166k/yr RemoteFull Time
1+ YOE1+ year application development experience; proficiency with front-end and back-end web technologies, cloud platforms, containers, CI/CD, Git; US citizenship and eligibility for Secret clearance required.
HTML, CSS, JavaScript, Node.js, Angular, React, Java, Python, AWS, Azure, Google Cloud, Docker, Kubernetes, Git, CI/CD
2mo
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Software Engineer - Mid
Washington, District of Columbia, United States
OnsiteFull Time
4+ YOE4+ years hands-on software development; TS/SCI clearance with ability to obtain CI Polygraph; front-end and back-end proficiency; API design; cloud and DevOps experience.
React, Angular, Vue, Python, JavaScript/Node.js, Java, Go, REST, GraphQL, Microservices, Cloud platforms, Git, CI/CD
1mo
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Sr. Full Stack Engineer
Washington, District of Columbia, United States
$91k-$185k/yr HybridFull Time
5+ YOE5+ years full stack development experience with advanced React and TypeScript, Java back-end skills, API design (REST, OAuth, JWT, OpenAPI/Swagger), microservices and async architectures; US citizenship and Secret clearance required.
React, Java, Redux, Hooks, Context API, TypeScript, RESTful API, OAuth, JWT, OpenAPI/Swagger, Python, FastAPI, Ruby on Rails, AWS
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