620 java software developer jobs at 139 companies in Hanover, PA

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
3w
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Java Software Engineer Level 5
Aurora or Morrisville or Linthicum
$177k-$266k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
12+ YOEActive Top-Secret/SCI clearance required; 12+ years software development experience (alternatively experience/degree combinations), 5+ years Java, RESTful APIs/microservices, Git workflows, Agile experience, strong OOP and SOLID skills.
Java, RESTful APIs, Git, GitHub, GitLab, Bitbucket, Linux, CI/CD, Docker
1mo
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Senior Java Software Engineer
Columbia or Minneapolis or Charlotte
$88k-$146k/yr HybridFull Time
Computershare
ComputershareASX: CPU: Global provider of financial administration and shareholder management services.
7+ YOE7+ years software engineering; 5+ years Java/J2EE, Spring, Spring Boot, Spring Batch, JPA; experience with Hibernate, Autosys/Control M, Git/GitHub, front-end tech (JavaScript, JSON, CSS, jQuery, Ajax, HTML 5), Selenium; Agile experience.
Java, J2EE, Spring, Spring Batch, Spring Boot, JPA, Hibernate, Autosys, Control M, JavaScript, JSON, CSS, jQuery, Ajax, HTML 5, Git, GitHub, Selenium
3w
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Java Software Engineer Level 4
Aurora or Morrisville or Linthicum Heights
$142k-$213k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
8+ YOETop Secret/SCI required; Bachelor’s degree (or equivalent experience); 5+ years Java development; experience with RESTful APIs, microservices, Git, and Agile; strong OO design and SOLID principles.
RESTful APIs, microservices, Java, Git, GitHub, GitLab, Bitbucket, Linux, CI/CD, Docker
2mo
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Senior Java Software Engineer
Fort Meade or Annapolis Junction
$200k-$230k/yr OnsiteFull Time
CTC Group
CTC Group: Provides specialized engineering and technical services to defense agencies.
14+ YOEActive TS/SCI with polygraph; STEM BS or equivalent; 4+ yrs SWE; Java/Swing, Maven, Eclipse; embedded Windows/Linux; GitLab CI/CD; hardware interfaces.
Java, Swing, Maven, Eclipse, VS Code, Spring Tools Suite, Java Fire/JFire, GitLab CI/CD, RabbitMQ, JTAG, I2C, SPI, UART, Ethernet, React, JavaScript, HTML
1mo
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Full Stack Java Software Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Tiber Technologies: Providing specialized engineering and security services for federal missions.
Strong Java development with Spring Boot, RESTful APIs, MongoDB, automated testing; US citizenship and active clearance with polygraph required; bachelor\u0002s degree in CS/Engineering; familiarity with full-stack, Kafka, Linux, and CI/CD preferred.
Java, Spring Boot, MongoDB, JavaScript, Vue.js, Kafka, Linux, CI/CD
1mo
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Senior Java Software Engineer
Columbia, Maryland, United States
$160k-$250k/yr OnsiteFull Time
Synergy ECP
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.
Java, Linux, Spring Framework, Git, Maven, Gradle
2w
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AI Software Engineer – Java
Aberdeen, Maryland, United States
$130k-$160k/yr OnsiteFull Time
Techximius: Provides specialized IT and engineering services for defense missions.
5+ YOE5+ years Java development experience, experience with Spring/Spring Boot or Jakarta EE, REST/microservices, databases, CI/CD and container technologies, familiarity with AI/ML integration, DoD Secret clearance required; Bachelor’s degree or equivalent.
Java, Spring Boot, Spring Framework, Jakarta EE, REST, SOAP, JMS, gRPC, PostgreSQL, Oracle, MySQL, MongoDB, Git, Jenkins, Maven, Gradle, Linux, Docker, Kubernetes, TensorFlow, PyTorch, OpenAI APIs, LangChain, Hugging Face, Microsoft Outlook, Microsoft Word, Microsoft PowerPoint, Microsoft Excel, Microsoft Teams
2w
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Java Developer
Annapolis Junction, Maryland, United States
$70k-$285k/yr OnsiteFull Time
Athenix Solutions Group
Athenix Solutions Group: Provides cybersecurity, systems engineering, and training for defense agencies.
Requires active TS/SCI with Polygraph, experience with Enterprise Java, microservices and SOA, database experience (MongoDB or MySQL), JMS, and knowledge of cellular communications parameters.
Java, MongoDB, MySQL, JMS
3mo
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Software Engineer, I - Java
Fort Washington, Pennsylvania, United States
$90k-$100k/yr RemoteFull Time
Office Practicum
Office Practicum: Pediatric-specific electronic health records and practice management software.
2+ YOETwo+ years in Java 17+/Spring Boot; experience with React; healthcare IT standards; AI tools Claude; remote work; bachelor's degree or equivalent.
Java, Spring Boot, React, Delphi, Python, MySQL, MongoDB, Claude, AWS, Git, Subversion, REST, FHIR, HL7, CCDA, X12, Networking
3w
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Java Developer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Set of X
Set of X: Provides specialized engineering services for U.S. national security missions.
20+ YOEStrong Java experience, containerized deployments, testing (unit/integration/e2e), experience with SpringBoot, Mongo, AWS, Kubernetes; Bachelor's degree in engineering/technical discipline or equivalent; TS/SCI clearance with polygraph required.
Java, JSON, XML, SpringBoot, Mongo, AWS Services, Kubernetes K8, Maven, ReactJS, Elastic, GraphQL, Git, Git CICD, Artifactory, JUnit, Cucumber, Wiremock, GreyBox, K6, Coder Platform, IntelliJ, VSCode, Prometheus, Grafana
1mo
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Mid Java Developer
Columbia, Maryland, United States
$80k-$128k/yr HybridFull Time
Peraton
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
1mo
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Java Software Engineer
Annapolis Junction, Maryland, United States
$147k-$249k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
Bachelor's in Computer Science (or equivalent experience). Experience with Java/JEE, Python, C/C++, SQL, XML/XHTML/HTML, web services (SOAP/WSDL/WADL), Windows/Linux, and tools like Eclipse, Jenkins, Postgres/Oracle. TS/SCI Polygraph clearance and U.S. person/citizenship required.
Java/JEE, Python, C/C++, SQL, SOAP, WSDL, WADL, XHTML, HTML, XML, XSLT, Windows, Linux, PERL, PowerShell, VBS, Eclipse, Postgres, Oracle, Jenkins, Tomcat, WebLogic, JBoss, FITNesse, Mockito, Cucumber, Unified Functional Tester (UFT), Selenium, DEVOPS, Test Driven Development (TDD), Behavior Driven Development (BDD), Acceptance Test Driven Development (ATDD), Scaled Agile Framework (SAFe)
1mo
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Software Engineer - Java, Microservices, MuleSoft & API Development (Remote)
Baltimore, Maryland, United States
$80k-$158k/yr RemoteFull Time
CareFirst BlueCross BlueShield
CareFirst BlueCross BlueShield: Provides health insurance coverage and administrative healthcare services.
5+ YOEBachelor's in IT/Computer Science (or 4 additional years experience), 5+ years software design/development, experience with Java, microservices, APIs, MuleSoft, Docker/Kubernetes, AWS/Azure, SQL/NoSQL, CI/CD, testing frameworks, and mentoring/leading teams.
Java, Spring, Spring Boot, Spring Cloud, Spring Core, Spring MVC, Spring Integration, Spring Batch, REST, SOAP, Docker, Kubernetes, Microsoft Azure, Microsoft Azure Monitor, Microsoft Azure Kubernetes Service (AKS), AWS, Oracle, Postgres, PostgreSQL, Mongodb, Cassandra, Elastic/ELK, Splunk, Kibana, Confluent, Apache Kafka, Kafka Streams, Postman, newman, MuleSoft, Dataweave, FHIR (Fast Healthcare Interoperability Resources), HL7, Cucumber, TestNG, Rest Assured, JSON, XML, Git, Bitbucket, Jira, Swagger/OpenAPI Specification, Service Mesh, OAuth, Apigee, Maven, Jenkins, SonarQube, Artifactory, UNIX, Shell
2d
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Software Engineer 2 (Hybrid) - JavaScript/React/Angular/Java/Linux
Annapolis Junction, Maryland, United States
$130k-$270k/yr HybridFull Time
Captivation Software
Captivation Software: Provides specialized software engineering for the intelligence and defense communities.
14+ YOETop Secret/SCI clearance with polygraph, Bachelor's in CS or related, ~14 years software engineering experience, expertise in Java and modern JavaScript frameworks, Section 508 familiarity, full-stack development across SDLC.
React, Vue, Angular, Java, JavaScript, Linux, Leaflet.js
1mo
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Software Developer
Belcamp, Maryland, United States
$83k-$140k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
10+ YOEBSc and 10+ years software development experience, U.S. citizenship with active Secret clearance, proficiency with Java/Python/C#/JavaScript, Linux/Windows experience, testing and documentation skills, DoD experience preferred.
Java, Python, C#, JavaScript, Linux, Windows
3mo
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Software Engineer
Aurora or Annapolis Junction
$72-$84/hr HybridFull Time
EverWatch
EverWatch: Develops software and intelligence systems for government agencies.
5+ YOE5+ years in software engineering; Java, Spring Boot, Kafka; WebSockets; microservices; SQL/NoSQL databases; OCI containers; Docker/Kubernetes; TS/SCI clearance with polygraph; Bachelor's in Software Development/Engineering
Java, Spring Boot, Kafka, WebSockets, Microservices, MySQL, PostgreSQL, MongoDB, Docker, Kubernetes, OCI containers, ReactJS, HTML, JavaScript, CI/CD, Jira, Confluence
3d
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Software Engineer
Annapolis Junction, Maryland, United States
$69k-$158k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
Experience developing software (Java, Python, Rust, Go), Linux and container expertise, cloud (AWS/Azure/GCP) experience, Top Secret clearance, bachelor’s degree required.
Java, Python, Rust, Go, Linux, Docker, Kubernetes, AWS, Azure, Google, C#, C, C++, JavaScript, React, Node.JS
1mo
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Senior Full Stack Java Software Engineer - Clearance Required
Annapolis Junction or Maryland or Texas
$151k-$266k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
20+ YOETS/SCI w/Poly clearance required. Bachelor’s in Computer Science (or equivalent) plus 20 years SWE experience (or +4 years experience in lieu). Must have Java, JavaScript, Python, CI/CD (Jenkins/GitHub/CodePipeline), Jira/Confluence, and AWS/serverless experience.
Java, JavaScript, Python, Jenkins, GitHub, CodePipeline, Jira, Confluence, AWS, API Gateway, Lambda, Secrets Manager, Parameter Store, Step Functions, DynamoDB, Aurora PostgreSQL, PostgreSQL, Angular, Vue
1mo
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Cloud Java /GUI Developer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Entegra Systems
Entegra Systems: Provides engineering and intelligence analysis for government missions.
8+ YOEBachelor's degree in computer engineering or related field; 8 years software engineering; 3+ years in SIGINT/IA/IT; TS/SCI with poly; GUI, Java, Python; cloud experience (AWS).
Java, Python, AWS, Linux, APIs, GUI development
1w
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Software Engineer
Columbia or Linthicum Heights
$180k-$200k/yr OnsiteFull Time
BEAT
BEAT: Provides IT and technical services for government and healthcare sectors.
Experience developing Java-based software, enterprise APIs, RESTful services, microservices and OOP; Linux and config management (Git,Nexus,Maven); US citizenship eligible for clearance; experience with AI coding agents preferred.
Java, Claude Code, Google's Antigravity, Gemini, NiFi, Kafka, AWS, Microsoft Azure, Linux, Git, Nexus, Maven, Elasticsearch, Postgres, Trino, Python, Flask, Vue, Docker, CICD, JIRA, Confluence, Github Enterprise