621 sr java developer jobs at 139 companies in Hanover, PA
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Java Developer
Annapolis Junction, Maryland, United States
$120k-$240k/yrOnsiteFull Time
Set of X: Provides specialized engineering services for U.S. national security missions.
20+ YOEDesign, develop, test, deploy, and maintain Java applications with containerized deployments; strong experience with AWS, Kubernetes, CI/CD, and modern tooling. TS/SCI with poly required.
Peraton: National security and mission-critical government technology services provider.
5+ YOEActive Secret clearance and US citizenship required. 5+ years Java enterprise development (React, Spring Boot, HTML/CSS/JavaScript), 2+ years with Eclipse and Git/GITLAB; bachelor's or equivalent experience options available.
Java, Spring, Spring Boot, React, HTML, CSS, JavaScript, REST, Eclipse, Git, GITLAB, Redux, Microsoft SQL Server, Transact-SQL (T-SQL), Linux/Unix shell scripting, KornShell (ksh), Bourne Again Shell (Bash), C shell (csh), JSON Web Token (JOTS), Drools, Jakarata Persistence API (JPA), Hibernate
Amatriot Group: Provides IT consulting and mission-critical technology support services.
10+ YOE10+ years with Java, Spring Boot, Angular, and React; extensive JEE and UI development; AWS/PostgreSQL cloud deployment; microservices, REST APIs, DevOps, testing, Agile, and technical leadership. Degree plus experience or 13+ years without degree.
Java, Angular, Spring Boot, REST APIs, Twelve-Factor App, microservices, SOAP, JAX-WS, Apache Axis, Web Services Description Language (WSDL), AngularJS, JavaScript, JSP, HTML, CSS, XML, AJAX, jQuery, Jenkins, Git, Bitbucket, Jira, Nexus, Maven, SonarQube, Fortify, UrbanCode Deploy, AWS, PostgreSQL, Azure, Google Cloud, containerization, JUnit, Mockito, PowerMock, Test Driven Development (TDD), Behavior-Driven Development (BDD), Cucumber, React, JEE, JAXP, JAXB, AXIS, JERSEY, JSON, CXF, LTPA, OAuth2/JWT, Struts, Spring Framework, Spring JDBC, JPA, Hibernate, DB2, Tomcat, WebSphere, Kafka, Artificial Intelligence (AI)
ComputershareASX: CPU: Global provider of financial administration and shareholder management services.
7+ YOE7+ years software engineering experience with 5+ years Java/J2EE, Spring/Spring Boot/Spring Batch, JPA/Hibernate, Autosys/Control-M, Git, Agile, front-end basics, and test automation (Selenium).
Java, J2EE, Java Web Services, Spring, Spring Batch, Spring Boot, JPA, Hibernate, Autosys, Control M, JavaScript, JSON, CSS, JQuery, Ajax, HTML5, Git, GitHub, Selenium
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
14+ YOETS/SCI with polygraph required. Bachelor’s in Computer Science (or 4 yrs SWE experience) plus 14 years SWE experience. Must have Enterprise Java, SOA, microservices, Mongo/MySQL, Python, and Agile/DevOps experience.
NetSage: Delivering specialized cyber services to the U.S. federal government.
12+ YOETS/SCI with polygraph required; B.S. in CS or 12 years' relevant experience (or 16 years without degree); experience with Java, Spring Boot, Angular/JSX, REST/microservices; Agile experience.
Angular, JavaScript XML (JSX), Spring Boot, Java, RESTful API, Spring MVC, Spring Data, Spring Security, Java Message Service (JMS), Apache Kafka, Oracle Database, Elasticsearch, Docker, Kubernetes (K8s), Maven, Gradle, GitLab, CI/CD
Peraton: Provides advanced technology and mission support for government agencies.
5+ YOEBachelor's (5+ yrs) or associate's (7+ yrs) or HS (9+ yrs); US citizenship and active Secret clearance required; 5+ years building enterprise apps with React, HTML, CSS, JavaScript, Spring Boot; Eclipse and Git/GitLab experience.
Java, React, HTML, CSS, JavaScript, Spring Boot, Eclipse, Git, GITLAB, Redux, Microsoft SQL Server, Transact-SQL (T-SQL), KornShell (ksh), Bourne Again Shell (Bash), C shell (csh), JSON Web Token (JOTS), Drools, Jakarata Persistence API (JPA), Spring JPA, Hibernate, Linux, Unix
Senior Java Developer (Active TS/SCI with Poly Required - (SIGN-ON BONUS UP TO $30,000)
Annapolis Junction, Maryland, United States
$164k-$207k/yrOnsiteFull Time
GDITNYSE: GD: Delivers IT and mission services to government agencies.
5+ YOEActive TS/SCI with poly; Bachelor's in a technical field; 5+ years software development; 4+ years Java; microservices, Spring, Docker, Kubernetes; strong backend architecture.
Java, Kotlin, Spring Boot, Spring Cloud, Spring Data, AWS, Docker, Kubernetes, Linux, Kafka, Cassandra, DynamoDB, GitLab CI/CD, Maven, Node.js, SonarQube, IntelliJ, VSCode, ReactJS
Columbia Technology Partners: Provides IT, cybersecurity, and management consulting to government agencies.
U.S. citizenship, active security clearance with appropriate polygraph, DOD 8570 certification, and successful security background investigation and polygraph are required.
Synergy ECP: Provides cybersecurity and systems engineering for defense agencies.
8+ YOEStrong experience in Java development, Linux environments, Spring Framework, multi-threaded, distributed systems; Git, Maven, Gradle; TS/SCI clearance and U.S. citizenship.
ERP International: Provides health and technology solutions to federal government agencies.
8+ YOEExpert Java Spring Boot and React developer with 8+ years experience, Agile/DevSecOps and CI/CD experience, US citizenship and ability to obtain Secret DoD clearance, familiarity with Postgres/Redis and automated testing.
Java, Spring Boot, React, Postgres, Redis, Junit, Mockito, Cucumber, Jira, Confluence, DevSecOps, CI/CD, Docker, Kubernetes, Microsoft Teams, DoD STIG
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
5+ YOE5+ years of relevant software development experience with Java or C++, full lifecycle development, computer science fundamentals, and security clearance eligibility; U.S. citizenship required.
AmentumNYSE: AMTM: Global provider of engineering, technical, and mission support services.
14+ YOERequires 14 years of software engineering experience, a computer science bachelor's degree or equivalent experience, Enterprise Java, service-oriented and microservice architecture, databases, Python, and TS/SCI with polygraph clearance.
Senior Full Stack Java Software Engineer - Clearance Required
Annapolis Junction, Maryland, United States
$167k-$310k/yrOnsiteFull Time
Lockheed MartinNYSE: LMT: Designs and manufactures advanced aerospace, defense, and security systems.
Design, develop, document, test, and maintain secure full-spectrum cyber solutions and specialized software tools for cyber operations. Clearance is required.
ELEVI Associates: Provides cyber security and IT engineering for federal agencies.
20+ YOEActive security clearance with full-scope polygraph and 20+ years of software engineering experience. Requires Java, Python, regex, data parsing, debugging, testing, Git, Maven, Linux/shell, and VS Code.
Java, Python, Git, Maven, Linux, VS Code, Claude Code
Culper Technology: Provides software and systems engineering services for the defense and intelligence community.
20+ YOEU.S. citizen with active TS/SCI+Poly required; 20+ years software engineering experience; Bachelor’s in Computer Science (or +4 years experience); strong Java, SQL, PostgreSQL, Elasticsearch, Quarkus, PrimeFaces, and Agile experience.
Quevera: Software engineering and cloud solutions for government and defense.
12+ YOERequires TS/SCI clearance with polygraph, U.S. citizenship, 12+ years' experience, bachelor's in computer science or equivalent, extensive Java, C/C++, cryptography, and key management experience.
Must hold TS/SCI with polygraph, bachelor's in CS or equivalent experience, experienced with Java/Python/C/C++, web and database technologies, Agile and TDD practices.