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Java Developer Jobs in Mount Joy, PA, US
77 java developer jobs from 44 companies hiring in Mount Joy, PA, US.
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Embedded Java Display Engineer (New Holland, PA, US)
New Holland, Pennsylvania, United States
$84k-$113k/yr OnsiteFull Time
3+ YOEBachelor's in CS/EE or similar; 3+ years Java and embedded software experience.
Java, Android Studio, Embedded Software, CAN, UDS, SAE J1939
2w
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Software Engineer, I - Java
Fort Washington, Pennsylvania, United States
$90k-$100k/yr RemoteFull Time
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
2mo
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Software Developer
Aberdeen Proving Ground, Maryland, United States
$108k-$228k/yr OnsiteFull Time
3+ YOE3-5 years of software development experience; Java; Spring Framework; relational databases; CI/build tools; version control; Bachelor’s in CS/Engineering; ability to obtain Secret clearance.
Java, Spring Framework, Spring Boot, Spring MVC, Spring Data, Relational Databases, CI Tools, Version Control, Docker, Kubernetes, Cloud Platforms, GWT, JSF, Vaadin, Wicket, GWT, AWS, Azure, Google Cloud
2w
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AI Agentic Software Engineer
West Chester, Pennsylvania, United States
HybridFull Time
2+ YOE2+ years full-stack development; .NET or Java; React; REST APIs; AI exposure.
React.js, .NET, Java, REST APIs, GitHub Copilot
1w
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Application Engineer - IV
Malvern, Pennsylvania, United States
OnsiteFull Time
8+ YOEEight years of related experience with strong development skills; in-office five days; proficiency in AWS, Python, Java; troubleshooting and production support.
AWS, Python, Java, MS Office programming tools
3w
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Lead Software Engineer
Newark, Delaware, United States
OnsiteFull Time
5+ YOE5+ years Java development; SpringBoot; SDLC; CI/CD; cloud experience; financial services domain knowledge.
Java, SpringBoot, CI/CD, Cloud, AWS (Lambda, Data Analytics)
3w
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Journeyman Software Developer
Aberdeen, Maryland, United States
$104k-$181k/yr OnsiteFull Time
4+ YOEBachelor's in CS/Engineering with 4 years experience or 6 years related software development experience; US citizenship; SECRET clearance; proficiency in Python, C++, Java, C#; CI/CD; DoD/C-UAS experience preferred.
Python, C++, Java, C#, CI/CD, containerization, microservices, cloud
1w
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Senior Software Applications Developer
West Chester or United States or North America
RemoteFull Time
4+ YOEBachelor’s degree in Computer Science; 4+ years software development; experience with Java, Python, C#; CI/CD tools like Jenkins, GitLab, TeamCity; software design, testing, and automation.
Java, Python, C#, CI/CD, Version Control, Bug Tracking, Automation Frameworks
2mo
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Senior Software Developer (Secret Clearance Required)
Aberdeen, Maryland, United States
HybridFull Time
3+ YOEDoD security clearance, 3-5+ years in software development, strong Android/Java/C/C++, DevOps tools, Linux, APIs, Docker, Kubernetes, cloud, Agile.
Git, Gitlab, Jira, Nexus, Artifactory, Gradle, Bash, Python, Docker, Kubernetes, Linux, Android, Java, JavaScript, C, C++, C#, APIs, NVIDIA CUDA, ElasticSearch, Kibana
3w
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Software Engineer II/III
Hunt Valley, Maryland, United States
$88k-$167k/yr OnsiteFull Time
2+ YOEBachelor’s or Master’s in CS/CE with 2+ years experience; C/C++ or Java; shell scripting; Unix-based development; OOAD/OOD; Jira/Git/Mercurial familiarity; travel up to 20%; eligible for Secret clearance.
C++, Java, Shell Scripting, Unix, Jira, Git, Mercurial, OOA/OOD, REST API, CSS, JavaScript, TypeScript, SQL, NoSQL
3w
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Principal Software Engineer
Columbus or Chadds Ford or Plano or Draper or New York or Wilmington
$184k-$492k/yr HybridFull Time
15+ YOE15+ years in software development across full stack, frontend and backend; BS in CS or related field; strong Agile/DevOps focus; experience with Java, JavaScript, AWS, Azure, React, Angular, Flutter; leadership experience.
Agile Methodology, DevOps, Java, JavaScript, Microsoft Azure Functions, Microsoft Azure SQL, Full Stack Development, Amazon Web Services (AWS), React.js, Angular, Flutter
1mo
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Data Developer Intern
Exton, Pennsylvania, United States
$52k-$78k/yr HybridInternship
Pursuing a Master’s in CS/Software Eng; strong Java or Python; SQL; cloud basics; Agile; data/ETL interest.
Java, Python, SQL, AWS, Azure, GCP
1w
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Software Engineer
Alexandria or Edgewood
HybridFull Time
5+ YOESecret clearance preferred; proficient in Java, JavaScript, SQL; BS in CS or software engineering; 5–7 years coding experience; strong communication and teamwork.
Java, JavaScript, SQL
1mo
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Senior Software Engineer - Developer Services
Owings Mills, Maryland, United States
$121k-$206k/yr HybridFull Time
5+ YOESenior software engineer with 5+ years experience, strong Java or Python, AWS (IAM, Lambda, ECS/Fargate, S3, DynamoDB), microservices, REST APIs, Terraform, Docker, CI/CD, and identity systems (OAuth2/OIDC/JWT, ADFS).
Python, Java, AWS, Terraform, Docker, JSON, YAML, OAuth2, OIDC, JWT, ADFS
2mo
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Software Developer (55390)
Aberdeen, Maryland, United States
$100k-$110k/yr OnsiteFull Time
10+ YOEBachelor's degree and 10+ years in software development; DoD experience preferred; US citizen with active secret clearance.
Java, Python, C#, JavaScript
2w
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Senior Software Developer
Richmond or Baltimore or Nashville or Mechanicsburg or Raleigh
$105k-$145k/yr HybridFull Time
5+ YOESenior software developer with 5+ years of experience in full-stack design and geospatial applications.
SQL, C#, Java, Python, HTML, CSS, JavaScript, ASP.Net Core, Angular, React, Vue.js, Esri software
3w
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Lead Software Engineer
Newark, Delaware, United States
OnsiteFull Time
5+ YOE5+ years of Java software engineering experience; strong in SpringBoot, AWS, CI/CD; SDLC proficient; cloud-native experience.
Java, SpringBoot, AWS, CI/CD
1mo
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Senior Developer (Newtown Square, PA, US, 19073)
Newtown Square, Pennsylvania, United States
$153k-$196k/yr OnsiteFull Time
4+ YOEBachelor's or Master’s in CS/Data Science with 4–6 years of related experience; strong Java/Python, frontend, and devops skills.
Java, Python, HTML, CSS, AngularJS, Sonar, JUnit, Sahi, SOAP, REST, SQL, SCM, Jira, CI/CD, Machine Learning
1mo
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Software Engineer - Level II
Aberdeen Proving Grounds, Maryland, United States
$86k-$150k/yr OnsiteFull Time
3+ YOEUS citizen; Secret clearance; degree with experience in software development and SDLC.
Java, C++, Python, JavaScript, Git, TCP/IP
3w
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Senior Software Engineer
Aberdeen, Maryland, United States
$140k-$225k/yr HybridFull Time
7+ YOE7+ years software engineering experience; BS in CS/CE/EE; strong C/C++/Java/Python; CUDA; Docker; REST APIs; TS/SCI clearance; willing to travel; hybrid in Aberdeen, MD.
C, C++, Java, Python, Shell Scripting, Google Protocol Buffers, HTTP REST APIs, Docker, RPMs, CUDA
3w
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CyberTron Contract: Software Engineer I
Aberdeen, Maryland, United States
$85k-$110k/yr OnsiteFull Time
Techximius: Provides specialized IT and engineering services for defense missions.
1+ YOEEntry-level software engineer with skills in Java/C/C++, Python, or JavaScript; knowledge of backend, web apps, and microservices; DoD environment familiarity preferred.
Java, C/C++, Python, JavaScript, Backend development, Web technologies, Microservices, SQL
3w
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Software Developer - Front-Office Trading ( AVP
Burlington or Boston or Stamford or Clifton or Princeton or Berwyn
$90k-$158k/yr OnsiteFull Time
5+ YOEJava and C# programming; XML/WS; ETL tools; database knowledge; travel 50-80%; financial services/consulting experience preferred.
Java, C#, XML, Web Services, ETL, Kettle, Talend, Tomcat, Perforce, Oracle, MS SQL Server, Perl, Crystal Reports, SQL Server Reporting Services, MQ Series, MSMQ, SonicMQ, Open JMS, Kafka, XML/XSLT
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Staff Software Engineer - Amazon Connect REMOTE
Frisco or Overland Park or Danbury or Franklin or Coral Gables or Tampa or Alpharetta or King of Prussia or Chicago or Boston or Birmingham or New York City or Lake Mary or Charlotte or Houston or Sunrise or Hartford or San Antonio or Alexandria or Independence or Hunt Valley
$116k-$174k/yr RemoteFull Time
8+ YOE8+ years in software development and cloud computing; extensive AWS experience; AWS certification required; Bachelor's degree in CS/IT or related field.
AWS, Amazon Connect, AWS Lambda, API Gateway, DynamoDB, EventBridge, CloudWatch, SQS, KMS, S3, Terraform, Node.js, Python, Java
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Optimization Tech Debt Engineer (Engineer Software 2) - 27217 (Aberdeen Proving Ground, MD, Remote, United States)
Aberdeen Proving Ground, Maryland, United States
$78k-$90k/yr RemoteFull Time
2+ YOE2 years experience with Bachelors in related field; 0 years with Masters; or HS diploma with 6 years relevant experience; Linux, Agile, Java/JavaScript, Node.js, React.js, C++/C#, Visual Studio; active Secret Clearance.
Java, JavaScript, Node.js, React.js, C++, C#, Linux, Confluence, Jira, Git, Visual Studio
1mo
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IT Software Developer
Lancaster, Pennsylvania, United States
$70k/yr RemoteFull Time
2+ YOE2-3 years relevant experience; solid C#, .NET, JavaScript frameworks (Vue/Angular); REST APIs; SQL; Azure DevOps; Visual Studio; remote opportunity.
C#, .NET, Web API, HTML, JavaScript, Vue JS, Angular JS, CSS, T-SQL, Azure DevOps Git, Visual Studio, Visual Studio Code, xUnit, Quasar Framework, Angular Material, Microsoft IIS, iOS, Android, JAVA
3w
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DevSecOps Engineer
Auburn or Aberdeen
OnsiteFull Time
1+ YOEBachelor’s degree or higher in engineering or computer science; DevSecOps experience; DoD/STIG familiarity; containerization; CI/CD; security tooling; US citizenship.
GitLab, AWS, Azure, Docker, Kubernetes, Rancher, Helm, Bash, Go, C++, Java, Unix
2w
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Full Stack Software Engineer, Lead
Fort Meade or Annapolis Junction
$113k-$257k/yr OnsiteFull Time
14+ YOESenior full stack developer with experience in C++, scripting languages, CI/CD, containers, and distributed systems; TS/SCI with polygraph; Bachelor's degree and 14+ years of experience (or 18+ years without degree).
C++, Java, JavaScript, Python, Bash, Git, CI/CD, Jenkins, GitLab CI, Bamboo, Ant, NetBeans, Eclipse, Docker, Kubernetes, Red Hat, GNU Radio, Redhawk, MySQL, PostgreSQL, SQLite
3w
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Mid-Level Software Engineer
Hanover, Maryland, United States
$115k-$190k/yr OnsiteFull Time
7+ YOEActive TS/SCI with poly, U.S. citizenship, 7 years SWE exp, BS in CS or related, 4 years extra SWE exp for degree, strong communication.
AWS, Java
2mo
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Senior Software Engineer
Mechanicsburg or Yorktown
RemoteFull Time
7+ YOEDOD Secret clearance required; Security+ certification; Bachelor’s degree with 7+ years’ experience; experience with microservices, containers, CI/CD, and Agile/SAFe.
Java, Spring Boot, Linux, JavaScript, TypeScript, Vue.js, React, HTML, CSS, Axios, Maven, JUnit, Docker, Docker Compose, REST, SOAP, CI/CD, Jira, Azure DevOps, GitLab, SAFe, Agile, API Design and Management, Microservices, Cloud (AWS), Testing (unit, integration, functional, E2E, 508)
3w
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Web Test Engineer
Aberdeen Proving Ground, Maryland, United States
RemoteFull Time
3+ YOE3+ years software testing and automation; automated web testing with Cypress/Selenium; Agile/Scrum experience; CI/CD familiarity; containerization with Docker/Kubernetes; strong troubleshooting.
Cypress, Selenium, TestNG, JUnit, Postman, REST Assured, SoapUI, GitLab CI, Docker, Kubernetes, Maven, Gradle, NPM, JMeter, Java, JavaScript, Cucumber, Gherkin, SQL, Git
3w
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Sr. Innovation Software Engineer
Minnetonka or Austin or Chicago or Easton or Dallas or Detroit or Hagerstown or Atlanta or Houston or Akron or Birmingham or Charlotte or Indianapolis or Pittsburgh or Cincinnati or Cleveland
$77k-$154k/yr OnsiteFull Time
8+ YOESenior software engineer with full-stack, AI-enabled solution delivery; 8-12 years of experience.
Java, Python, TypeScript/JavaScript, Vertex AI, Google Cloud
1mo
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Software Systems Engineer Senior
Aberdeen, Maryland, United States
$116k-$262k/yr OnsiteFull Time
10+ YOESenior software systems engineer with 10+ years in the software lifecycle, TS/SCI clearance, leading contractor teams, RF architectures, EW/SIGINT, and MOSA; Bachelor's in CS or Software Engineering.
Java, Python, C++, MOSA, AWS, Azure, containerization, microservices, CI/CD, Scrum, Kanban, APIs, Databases, Cybersecurity
1mo
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Systems Engineer (Exton, PA, US, 19341)
Exton, Pennsylvania, United States
$85k-$100k/yr OnsiteFull Time
2+ YOEBS in Systems/Optical/Mechanical/Electrical Eng, CS; 2+ yrs systems engineering; strong communication; Python/C#/Java; production tools experience encouraged.
Python, C#, Java, JIRA/Confluence, Azure, MatLab
3w
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Senior Application\Middleware Engineer
Charleston or Newark or Bellevue or Plano or Detroit or Nashville or Tulsa or New York
OnsiteFull Time
10+ YOEBachelor’s degree in engineering; 10+ years in a global environment; AWS certifications or equivalent; strong middleware experience (IBM WebSphere, Apache Tomcat, Java, JBoss, SFTP, Dynatrace, IIS, etc.); Windows/Linux server administration; AWS services including S3, EKS, ECS, containers, Kubernetes, Terraform; scripting in PowerShell or Python a ...
AWS, Linux, Windows Server, IBM WebSphere, Apache Tomcat, Java, JBoss, SFTP, Dynatrace, IIS, Terraform, PowerShell, Python, ServiceNow, Microsoft Teams, SharePoint, Kubernetes, EKS, S3, ECS
1mo
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RF Network Engineer
Aberdeen, Maryland, United States
$125k-$140k/yr OnsiteFull Time
3+ YOEBachelor's in Electrical/Computer Engineering or Computer Science; 3-5 years of relevant experience; TCP/IP networking; Windows and Linux; documentation skills; willingness to learn; knowledge of wireless technologies a plus; programming experience (Java, Python, C++) a plus; automated testing and lab equipment automation a plus.
TCP/IP, Windows, Linux, Programming (Java, Python, C++), Automated testing, Laboratory instrumentation (test equipment)
1w
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Associate Automation Engineer
Hunt Valley, Maryland, United States
$62k-$99k/yr OnsiteFull Time
0+ YOEAssociates or Bachelor's in Electrical/Mechanical/Automation/Mechatronics; 0-1 year experience; design, analyze, and maintain automation systems.
Arduino, Raspberry Pi, Arducam, Python, Java, C++, FANUC LR series robots
1mo
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Data Engineer – NAVSUP OIS - Onsite
Mechanicsburg or Yorktown
$130k-$155k/yr OnsiteFull Time
10+ YOE10+ years of data engineering experience; TS clearance; US citizenship; AWS GovCloud; ETL; SQL/NoSQL; data warehousing; cloud data platforms.
AWS GovCloud, AWS RDS, PostgreSQL, MySQL, Oracle, Pentaho, Apache Hadoop, Apache Spark, Kafka, RedShift, MicroStrategy, Erwin Data Modeler, Python, Java, Scala, Go
1mo
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Data Engineer – NAVSUP OIS - Onsite
Mechanicsburg or Yorktown
$130k-$155k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
10+ YOE10+ years of related experience; Top Secret clearance; US citizenship; AWS GovCloud; SQL/ETL; data warehousing; strong collaboration skills.
AWS GovCloud, RDS, PostgreSQL, MySQL, Oracle, SQL, Python, Java, Scala, Go, Spark, Kafka, Hadoop, RedShift, Liquibase, GitLab, CI/CD, ETL, Pentaho, Erwin Data Modeler
1mo
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Staff Mission Assurance Engineer
Sykesville, Maryland, United States
$169k-$254k/yr OnsiteFull Time
12+ YOEBachelor’s in a STEM field with 12+ years quality experience or Master’s with 10+ years; requires US citizenship and ability to obtain Secret DoD clearance.
Java, C++, C#, Ada, VHDL, Python, MATLAB, JIRA, Version control
3w
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Artificial Intelligence/Machine Learning (AI/ML) Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
5+ YOEFive years of applied ML experience; Master's or PhD in AI/ML related field (or 5 extra years with a Bachelor's); proficient in PyTorch/TensorFlow; strong data and model governance, deployment, and evaluation skills.
PyTorch, TensorFlow, Python, Java, R
HiringCafe market data
Java Developer Jobs market signals in Mount Joy, PA, US
These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.
Open jobs
77
Hiring companies
44
Fresh sample
65% new in 30d
Salary visibility
75% show pay
Companies appearing in this market
ParsonsT. Rowe PriceTextronCACIJabilDataPathJPMorgan ChaseVanguard
Work location mix in visible results
Onsite: 36Hybrid: 12Remote: 7