Java Developer Jobs in Crofton, MD, US

Save

Mark Applied

Hide

Full Stack Developer / Java Developer

Rockville, Maryland, United States

$92k-$125k/yr HybridFull Time

LCG: Technology consulting and IT services for federal government agencies.

3+ YOE3+ years Java/J2EE, Angular/TypeScript, REST/SOAP, Oracle PL/SQL, Docker, HTML5/jQuery, Spring/Spring Boot, CI, Agile.

Java, J2EE, Angular, TypeScript, REST, SOAP, Oracle PL/SQL, Docker, Spring, Spring Boot, HTML, jQuery, CSS

1mo

Save

Mark Applied

Hide

1mo

Java Software Engineer

Annapolis Junction, Maryland, United States

$147k-$249k/yr OnsiteFull Time

BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.

10+ YOEBachelor's in CS or related; experience with Java, Python, C/C++, SQL; UI development; Windows/Linux; strong software development principles; TS/SCI clearance.

Java, Python, C/C++, SQL, XML, HTML, XSLT, Jenkins, Eclipse, PostgreSQL, Oracle, PERL, PowerShell

Save

Mark Applied

Hide

Software Engineer (Java/Springboot)

Mount Laurel or Reston or Philadelphia

$115k-$172k/yr HybridFull Time

ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.

5+ YOEProficiency in Java and Spring Boot; 5-7+ years of software engineering; front-end skills; REST/microservices; databases; CI/CD; offshore coordination.

Java, Spring Boot, Angular, JavaScript, HTML, CSS, jQuery, Spring Framework, Spring Integration, Apache Camel, MSSQL, MySQL, Oracle, MongoDB, JUnit, TestNG, REST, Microservices, RabbitMQ, Kafka, GoCD, Jenkins, Concourse, Flowable, JBPM, Activiti, Python

Save

Mark Applied

Hide

Senior‑Level Full‑Stack Developer (Python, Java)

Annapolis Junction, Maryland, United States

$155k-$175k/yr OnsiteFull Time

IDS International: Global training, logistics, and security for government agencies.

8+ YOESenior-level full-stack developer with Python and Java; TS/SCI with polygraph; Jupyter experience; 8 years of relevant experience; Bachelor's degree or equivalent.

Python, Java, Jupyter

Save

Mark Applied

Hide

Junior Full Stack Software Engineer (JAVA)

Annapolis Junction, Maryland, United States

OnsiteFull Time

Interclypse: Provides software engineering and cybersecurity solutions for government agencies.

0+ YOE0-4 years software development exp with Java or JavaScript; exposure to MongoDB/SQL; Bachelor's in CS/CE/IS; REST APIs; agile environment.

React, Java, Spring Boot, C#, .NET, MongoDB, SQL, RESTful APIs

1mo

Save

Mark Applied

Hide

1mo

SME Full Stack Developer - Java/Python , Clearance Required

Ashburn, Virginia, United States

HybridFull Time

SourceFly: We provide IT services and workforce solutions to government clients.

5+ YOE5+ years’ full-stack development with Java/Python; security clearance (Secret); government/military domain experience.

Java, Python, Spring Boot, Docker, Kubernetes, REST, React, Angular, Vue.js, Jenkins, Gitlab CI, Harness, gRPC, RabbitMQ, Kafka, AWS, PostgreSQL, Oracle, Elasticsearch, Solr, Hadoop, Spark

Save

Mark Applied

Hide

Software Engineer 3 - Java/GPU

Annapolis Junction, Maryland, United States

$130k-$270k/yr OnsiteFull Time

Captivation Software: Provides specialized software engineering for the intelligence and defense communities.

20+ YOESenior software engineer with Java experience; TS/SCI with polygraph; 20 years SWE; BS in CS; 4 years substitute for degree.

Java, GPU programming, GPU-accelerated applications

Save

Mark Applied

Hide

Backend Java Engineer - Clearance Required

Herndon or Chantilly

OnsiteFull Time

BTI360: Develops software and AI solutions for national security customers.

Backend Java experience, Spring or Spring Boot, CI/CD, AWS CodeBuild/Jenkins/GitHub Actions, REST APIs, containerization, and data platform integration.

Java, Spring, Spring Boot, CI/CD, AWS, CodeBuild, Jenkins, GitLab CI, GitHub Actions, REST, HTTP, DevSecOps, Terraform, OpenSearch / Elasticsearch / Solr, Kubernetes, Docker

3mo

Save

Mark Applied

Hide

3mo

Software Engineer, Senior (Appian + Java)

McLean, Virginia, United States

$129k-$193k/yr OnsiteFull Time

Freddie MacOTCQB: FMCC: Provides liquidity and stability to the US mortgage market.

5+ YOE5-7 years IT experience; 3+ years Appian BPM; 3+ years Java; Angular; Kubernetes; cloud; Appian Lead cert; Bachelor's in CS/IT; advanced studies preferred.

Appian, Java, Angular, Kubernetes, Cloud, Databases, Security APIs

Save

Mark Applied

Hide

Senior Software Developer (Java/J2EE/Application Modernization)

Rockville, Maryland, United States

$70-$80/hr HybridContract

CTIS: Provides health informatics and IT solutions for clinical research.

5+ YOE5+ years migration of Java/J2EE to AWS; strong Java/J2EE, AWS architecture, containerization, IaC, CI/CD; collaboration and communication skills.

Java, J2EE, Spring, Hibernate, JSF, AWS, Docker, Kubernetes, CloudFormation, Terraform, Terraform, S3, RDS, EC2, ECS, EKS, API Gateway, Lambda

Save

Mark Applied

Hide

Senior Full Stack Developer (Java)

Washington or Virginia

OnsiteFull Time

Unissant: Delivers data analytics and cybersecurity services to government agencies.

10+ YOE10+ years enterprise app development/integration; Bachelor's in CS/IT/Engineering; Collibra experience; strong communication; on-site in DC metro.

Java, Spring Boot, Quarkus, React, Angular, Vue.js, Collibra, Edge Server, Kafka, NiFi, AWS Glue, RabbitMQ, OAuth, SAML, LDAP, Jenkins, GitHub Actions, AWS CodePipeline, Camunda

1mo

Save

Mark Applied

Hide

1mo

Java Technical Lead - Remote

Minneapolis or Washington

$92k-$164k/yr RemoteFull Time

UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-driven healthcare services.

10+ YOE4+ Mgmt10+ years software engineering; Java and Spring Boot; API/microservices; CI/CD; cloud deployment; leadership; strong communication.

Java, Spring Boot, APIs, Microservices, CI/CD, Cloud, Grafana, Prometheus, Dynatrace

1mo

Save

Mark Applied

Hide

1mo

Java Technical Lead - Remote

Minneapolis or Washington

$92k-$164k/yr HybridFull Time

UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.

10+ YOE3+ MgmtSenior Java/Spring Boot lead with 10+ years of software engineering, API/microservice focus, CI/CD, cloud deployment, and strong leadership.

Java, Spring Boot, APIs, Microservices, CI/CD, Cloud platforms, Grafana, Prometheus, Dynatrace

Save

Mark Applied

Hide

Lead Software Engineer (Java)

McLean, Virginia, United States

$197k-$225k/yr OnsiteFull Time

Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.

4+ YOEBachelor's degree; 4+ years software engineering; 1+ year cloud experience; preferred master's; 7+ years in relevant languages; 3+ years cloud; 4+ years open source frameworks; 1+ year people management; 2+ years Agile.

Java, JavaScript, TypeScript, Python, Go, SQL, HTML/CSS, Docker, Kubernetes, AWS, Open Source RDBMS, NoSQL

1mo

Save

Mark Applied

Hide

1mo

Software Engineer (Mid) – Java, MBSE & Modeling Tool Integration

Arlington, Virginia, United States

$105k-$140k/yr HybridFull Time

G2 Ops: Provides digital engineering and cybersecurity solutions for defense organizations.

5+ YOEMid-level Java software engineer with MBSE and modeling tool integration experience; should design, implement, and debug in a complex engineering domain.

Java, JSON, REST, HTTP, SysML, MBSE, Cameo Systems Modeler

1mo

Save

Mark Applied

Hide

1mo

Software Engineer - Java, Python, node.js, JavaScript, HTML (2026-0065)

Reston, Virginia, United States

OnsiteFull Time

Acclaim Technical Services: Provides language and intelligence services to U.S. federal agencies.

2+ YOEBachelor's degree in engineering or related field; 2+ years software engineering experience; proficiency in Java, Python, Node.js, JavaScript, HTML.

Java, Python, Node.js, JavaScript, HTML

Save

Mark Applied

Hide

Senior Software Engineer (React+Java+SQL Server) - (Remote - US)

Reston or United States

$99k-$168k/yr RemoteFull Time

ICFNASDAQ: ICFI: Provides strategic consulting and technology services to global organizations.

8+ YOE8+ years full-stack software engineering; Java REST APIs; React frontend; SQL Server/PostgreSQL; Agile/Scrum; US citizenship or permanent residency; must reside in the United States.

React, Java, SQL Server, PostgreSQL, Spring, Hibernate, REST APIs, JPA, Angular

2mo

Save

Mark Applied

Hide

2mo

Software Developer

Chantilly, Virginia, United States

OnsiteFull Time

J5 Consulting: Providing specialized cybersecurity and IT consulting for federal agencies.

Experienced software developer with CI, AWS, Java and React, Agile, testing, and modern web architectures.

AWS, Java, React, CI/CD, Automated Testing, APIs, SOPs

Save

Mark Applied

Hide

Software Developer

Alexandria, Virginia, United States

$75k-$102k/yr OnsiteFull Time

Space Ground System Solutions: Provides engineering services for satellite ground systems and space missions.

0+ YOE0-5 years software development experience; Linux, React/JavaScript, Java; BS in CS/Engineering.

React, JavaScript, Java, Linux, Go, Python, C/C++, Kubernetes, Docker, Podman, Shell scripting, Git, Jira, REST, JSON, RHEL, NodeJS

Save

Mark Applied

Hide

ETL Developer

Chantilly, Virginia, United States

OnsiteFull Time

ManTech: Provides technology solutions for defense and intelligence agencies.

7+ YOEExperience in data engineering and software development; strong Java, SQL, ETL in Big Data; TS/SCI with Poly required.

Java, JDK, J2EE, EJB, JDBC, Spring, RESTful APIs, Linux, Hadoop, Hbase, MapReduce, Elasticsearch, NiFi, Kafka, Zookeeper, SQL

Save

Mark Applied

Hide

Software Developer

Chantilly, Virginia, United States

OnsiteFull Time

Bespoke Technologies: Provides technical engineering and data solutions for national security.

5+ YOEExperienced software developer with on-site position in Chantilly, VA; poly clearance required; strong cloud, Python/Java, and AWS skills.

Java, Python, Elasticsearch/OpenSearch, AWS, Docker, Linux, SQL, S3, Lambda, SQS, SNS, IAM, DynamoDB, CDK, CloudFormation, Terraform

1mo

Save

Mark Applied

Hide

1mo

Mid Level Developer

Rosslyn, Virginia, United States

OnsiteFull Time

ActioNet: Provides IT modernization and cybersecurity services for government agencies.

3+ YOE3–7 years software development; Bachelor's in CS/IT; Python/Java/C#; Agile/Scrum/SAFe; RESTful APIs; databases; security standards.

Python, Java, C#, REST, APIs, SQL, NoSQL, Agile, Scrum, SAFe, Cloud

1mo

Save

Mark Applied

Hide

1mo

Senior Developer

Rosslyn, Virginia, United States

OnsiteFull Time

ActioNet: Provides IT modernization and cybersecurity services to government agencies.

7+ YOELead design and development of software; 7–12 years in software development; proficient in Python, Java, or C#; Agile, Scrum, and SAFe; strong leadership and API integration; cloud and big data experience preferred.

Python, Java, C#, Agile, Scrum, SAFe, Cloud, Big Data, API development, Microservices

Save

Mark Applied

Hide

Back-End Developer

McLean, Virginia, United States

$87k-$198k/yr OnsiteFull Time

Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.

5+ YOE5+ years software development; Java; Docker; TS/SCI clearance; Bachelor's degree.

Java, Docker, Kubernetes, Kotlin, Python

1mo

Save

Mark Applied

Hide

1mo

Software Developer

Fort Meade, Maryland, United States

$69k-$158k/yr OnsiteFull Time

Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients

3+ YOE3+ years software engineering; Linux; Java/JavaScript; full stack development; agile methods; TS/SCI with polygraph; BS in Computer Science

Java, JavaScript, MongoDB, Spring, OSGi, Perl, Python, Lua, NGINX

Save

Mark Applied

Hide

Senior Software Developer

Fort Belvoir, Virginia, United States

OnsiteFull Time

Applied Research Associates: Provides scientific research and engineering solutions for complex problems.

6+ YOESenior software developer with 6-10 years of experience in software development; strong Java, Python, web tech, cloud, containers; Agile leadership; TS/SCI upgrade path.

HTML, CSS, JavaScript, Angular, Python, Java, Golang, Vue, React, AWS, Azure, GCE, Docker, Kubernetes, Helm, CI/CD, SQL, NoSQL, Postgres, MySQL, Redis, MongoDB

1mo

Save

Mark Applied

Hide

1mo

Application Developer Senior Software Engineer

Fort Meade, Maryland, United States

$165k-$215k/yr OnsiteFull Time

Peak 10 Incorporated: Cyber and enterprise system solutions provider for the DoD.

6+ YOESix+ years software development; strong background in C#/.NET or Java; web development with REST, ASP.NET, JQuery, JavaScript; Agile experience; OO design; XML/JSON; NoSQL; code reviews; team collaboration.

C#, .NET, Java, REST, ASP.NET, JQuery, JavaScript, CSS, XML, JSON, NoSQL, SQL, Windows, Unix/Linux, Dialogic CTI

Save

Mark Applied

Hide

Full Stack Developer

Chantilly, Virginia, United States

HybridFull Time

AnaVation: Providing technical engineering and cybersecurity solutions for federal agencies.

4+ YOEBachelor’s in CS/Engineering; 4+ years software development; Java, JavaScript, Python, SQL; Java Spring; PostgreSQL; CI/CD; pass High-Risk Public Trust background.

Java, Spring, JavaScript, TypeScript, Python, SQL, PostgreSQL, GitLab, GitHub, AWS, Nutanix

2mo

Save

Mark Applied

Hide

2mo

Appian Developer

Silver Spring, Maryland, United States

$75k-$95k/yr OnsiteFull Time

DRT Strategies: Provides digital transformation and IT solutions for federal agencies.

3+ YOE3+ years Appian development; Java, Appian BPM, SQL, APIs, web services, integrations, Appian plugins, Appian SAIL; agile; government experience preferred.

Appian, Java, SQL, Web Services, APIs, Appian Plugins, Appian SAIL

Save

Mark Applied

Hide

Backend Developer

Tysons or Manassas

OnsiteFull Time

SWIFT: Provides secure messaging services for global financial transactions.

2+ YOEBackend Developer with 2-3 years, Java/Spring Boot, Cassandra DataStax, Git, Linux, Maven; build scalable backend services; experience in financial services is a plus.

Java, Spring Boot, Cassandra DataStax, Git, Linux, Maven

1mo

Save

Mark Applied

Hide

1mo

Software Developer 3 (SWD3)

Annapolis Junction, Maryland, United States

OnsiteFull Time

RealmOne: Provides cybersecurity and intelligence services for national security missions.

15+ YOESenior software developer with Java, Linux/UNIX, and full lifecycle software development; experience with AWS, Spring, and middleware; DoD 8570 IAT Level II certification.

Java, AWS, Angular, Hibernate, PostgreSQL, Docker, Podman, JHipster, XML/XSD, C++, Python, Perl, Ruby on Rails, Django, Spring Framework, Eclipse, JBuilder

1mo

Save

Mark Applied

Hide

1mo

Software Developer 3 (SWD3)

Annapolis Junction, Maryland, United States

OnsiteFull Time

RealmOne: Provides advanced technology services for national security agencies.

15+ YOESenior software developer with Java, AWS, and modern tech stack; strong self-starter with 15+ years in software development; DoD 8570 IAT II required.

Java, Spring, AWS, Angular, Hibernate, PostgreSQL, Docker, Podman, JHipster, XML, XSD, C++, Python, Perl, Ruby on Rails, Django, SpringFramework

18h

Save

Mark Applied

Hide

18h

Senior Systems Engineer (Full-Stack Developer)

Arlington, Virginia, United States

RemoteFull Time

Syms Strategic Group: Provides IT and professional services to federal government agencies.

8+ YOESenior full-stack developer with backend focus in Java/NodeJS; Angular UI experience; 8+ years of software development; US citizenship and public trust clearance requirements.

Java, NodeJS, Angular, REST APIs, AWS, Git, Docker, CI/CD, TypeScript, XML, JSON, HIPAA

Save

Mark Applied

Hide

Android Developer

Ashburn, Virginia, United States

$120k-$155k/yr OnsiteFull Time

Technology Advancement Group: Developing assured positioning, navigation, and timing solutions for defense.

Proven Android development experience with Kotlin/Java; strong Android SDK knowledge; hardware communication protocols (Serial, I2C, SPI); strong debugging; independent worker; good communicator.

Kotlin, Java, Android SDK, NDK, Git, Serial, I2C, SPI

1mo

Save

Mark Applied

Hide

1mo

Software Engineer

Warrenton or Denver or Fort Meade

OnsiteFull Time

Altamira TechnologiesNYSE: PSN: Provides data analytics and engineering for national security missions.

Strong Java skills; full-stack development; experience with Java, JavaScript/TypeScript, Python, Angular, ELK stack; BS in CS/CE/EE; TS/SCI with poly; CI/CD experience.

Java, JavaScript, TypeScript, Angular, React, Elasticsearch, Python, REST, Docker, Kubernetes, Helm, Redis, NoSQL, SQL, Android

1mo

Save

Mark Applied

Hide

1mo

Back End Developer/Engineer (MBI Clearance)

Columbia, Maryland, United States

$120k-$140k/yr HybridMultiple Commitments Available

iCallidus: Provides information technology and cybersecurity services to federal agencies.

7+ YOE7+ years back-end development; proficient in Java, Python, .NET, Node.js; REST/microservices; databases; cloud platforms; secure coding; MB I clearance preferred.

Java, Python, NET, Node.js, PostgreSQL, MySQL, MongoDB, SQL Server, REST, Microservices, AWS, Azure, GCP, OWASP

1mo

Save

Mark Applied

Hide

1mo

Full Stack Developer

Chantilly, Virginia, United States

$110k-$140k/yr OnsiteFull Time

Synergy ECP: Provides cybersecurity and systems engineering for defense agencies.

8+ YOEContractor to provide development and O&M support for a production Java app with Postgres backend in AWS; TS/SCI clearance; US citizenship; 8+ years experience; strong Java/JavaScript, Angular, Spring Boot.

Java, JavaScript, Angular, Spring Boot, Spring Data JPA, Tomcat, JBoss, PostgreSQL, AWS

2mo

Save

Mark Applied

Hide

2mo

Full Stack Developer (Java, Spring, MongoDB, Elasticsearch) - Top Secret/SCI/FSP Required - Onsite

Annapolis Junction, Maryland, United States

OnsiteFull Time

Booker DiMaio: Software engineering and IT modernization for government agencies.

Top Secret/SCI clearance required; onsite in Annapolis Junction, MD; Java 8+; Elasticsearch; MongoDB; Oracle; Spring Boot; Angular; RESTful services; Solr; strong interfaces between applications.

Java, Elasticsearch, MongoDB, Oracle, Spring Boot, Angular, RESTful web services, Solr

1mo

Save

Mark Applied

Hide

1mo

Appian Developer

Reston, Virginia, United States

OnsiteFull Time

DAn Solutions: Provides IT systems integration, cybersecurity, and cloud engineering services.

4+ YOEOn-site Appian Developer with TS/SCI w/ CI poly; 4+ years experience or Bachelor’s in a related field; HTML, CSS, JavaScript, Node.js, Java, Angular, ReactJS, Express.js, NestJS, TypeORM, Docker.

HTML, CSS, JavaScript, Node.js, Java, Angular, ReactJS, Express.js, NestJS, TypeORM, Docker