📣 HiringCafe is hiring a Founding Growth Hacker! Learn More · Apply here
Limited-index browse page
Java Developer Jobs in Middletown, DE, US
430+ java developer jobs from 130+ companies hiring in Middletown, DE, US.
2mo
Save
Mark Applied
Hide
Entry-Senior Software Engineer- TS/SCI w/ Polygraph
Annapolis Junction, Maryland, United States
$95k-$230k/yr OnsiteFull Time
Software engineer with Java, Python, Git; containerization; CI/CD; Agile; Spring, Hibernate, MySQL; BS in CS or related, 4 years exp may substitute
Java, Python, Git, Shell, Maven, JavaScript, HTML, CSS, JUnit, IDEs, Docker, Kubernetes, OpenShift, GitLab CI, SonarQube, Spring, Hibernate, MySQL, Web Services, Vaadin
2mo
Save
Mark Applied
Hide
Software Engineer II (661493)
Hanover, Maryland, United States
$41-$72/hr RemoteFull Time
5+ YOE5+ years software development; Appian BPM; full-stack skills; REST APIs; Agile; Git.
Appian, JavaScript, React, Node.js, Java, SQL, REST, Git, AWS, Azure, GCP
1w
Save
Mark Applied
Hide
Associate Software Development Engineer (SDET), IT Software Engineers
Dresher or Baxter or Newton
RemoteFull Time
0+ YOEBachelor’s degree in CS/Engineering or related field; basic programming in C#, Python or Java; desire to learn in Agile environment; knowledge of testing concepts.
C#, Python, Java, PowerShell, Bash
2mo
Save
Mark Applied
Hide
Senior Software Engineer – Cloud & Full Stack
Wilmington or Columbus
$81k-$114k/yr OnsiteFull Time
6+ YOE6+ years of experience; expert in AWS, SQL, React Native, Spring Boot, Java, JavaScript, and MySQL; onsite in Wilmington, DE or Columbus, OH; visa transfer/sponsorship not offered.
AWS, Java, JavaScript, React Native, Spring Boot, SQL, MySQL, Microservices
2mo
Save
Mark Applied
Hide
Senior Software Engineer, Platform
Philadelphia or New York
$116k-$209k/yr OnsiteFull Time
4+ YOEDevelop and optimize platform services; cloud focus; Agile; automation; 4-7 years platform experience; AWS preferred.
AWS, Kubernetes, Go, Java, Scala, Python, JavaScript
1mo
Save
Mark Applied
Hide
Manuel Test Engineer
Annapolis Junction, Maryland, United States
$150k-$240k/yr OnsiteFull Time
8+ YOEActive TS/SCI clearance with Polygraph; 8+ years of relevant experience; full SDLC testing; experience with formal test events; collaboration with developers; lab testing with physical equipment; strong communication.
Automated testing tools, Java, Shell, Python
3w
Save
Mark Applied
Hide
Senior Software Engineer
Annapolis Junction, Maryland, United States
$170k-$230k/yr OnsiteFull Time
7+ YOEActive TS/SCI with poly clearance required; 9 years with bachelor's or 7 years with master's; US citizenship; AWS, microservices, API development, Lambda, RDS, Grafana, Prometheus, MongoDB, DocumentDB.
Java, Spring Boot, Python, AWS, MongoDB, RDS, Grafana, Prometheus, DocumentDB, COTS/GOTS
2w
Save
Mark Applied
Hide
Nuuly Services Software Engineer - Level III
Philadelphia, Pennsylvania, United States
RemoteFull Time
4+ YOE4+ years server-side development; proficient in JVM languages; cloud and streaming experience; strong collaboration and leadership skills.
Kotlin, Java, Scala, Spring, Micronaut, Kubernetes, Google Cloud, AWS, Azure, REST, HTTP, Kafka, Spark, Cassandra
2w
Save
Mark Applied
Hide
Cloud Software Engineer CSWE2 - 27151
Hanover, Maryland, United States
OnsiteFull Time
Experience with DevOps, ElasticSearch, NiFi, Python, Java/Spring Boot, and Angular.
Python, Java/Spring Boot, Angular, Elastic Search, NiFi, DevOps
2mo
Save
Mark Applied
Hide
Technical Architect, Full Stack Developer
King of Prussia, Pennsylvania, United States
$175k/yr OnsiteFull Time
10+ YOE10+ years of software development/architectural experience; Salesforce expertise; strong integration, data, and system design skills; leadership and mentoring abilities.
Salesforce.com, Zuora, ServiceMax, FinancialForce, CPQ, Apex, Lightning Web Components, Visualforce, Boomi, MuleSoft, Jitterbit, SQL, ETL, Data Loader, Force.com, Java, JavaScript, XML, SAML, SSO, OAuth, APIs
1mo
Save
Mark Applied
Hide
Principal Software Engineer
Boston or St. Louis or Cleveland or Philadelphia or Chicago or San Francisco or New York City or Kansas City or Atlanta or Minneapolis or Dallas or Richmond
$173k-$260k/yr OnsiteFull Time
8+ YOE8+ years Java development; 4+ years AWS cloud experience; cloud-first architecture; CI/CD, DevOps; serverless; strong communication.
Java, Spring, Terraform, NoSQL, RDS, Kafka, Python
2mo
Save
Mark Applied
Hide
Lead Data Engineer (Bank Tech)
Wilmington, Delaware, United States
$179k-$205k/yr OnsiteFull Time
4+ YOELead data engineer with 4+ years in application development, 2+ years in big data, and 1+ year in cloud computing (AWS/Azure/GCP).
Java, Scala, Python, SQL, NoSQL, MongoDB, Cassandra, Redshift, Snowflake, Hadoop, Hive, Kafka, Spark, Gurobi, MySQL, Unix/Linux, Shell scripting
1mo
Save
Mark Applied
Hide
2026 Fall Co-Op - Software Engineer (Sea Systems) - Hunt Valley, MD
Hunt Valley, Maryland, United States
$26-$31/hr OnsiteInternship, Full Time
Pursuing bachelor’s in CS/CE/CIS/MIS; familiar with C/C++, C#, Python, or Java; able to commit ~40 hrs/week in summer; US citizenship for security clearance.
C, C++, C#, Python, Java
4w
Save
Mark Applied
Hide
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
5d
Save
Mark Applied
Hide
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
2w
Save
Mark Applied
Hide
Senior Application Developer
Annapolis Junction, Maryland, United States
$194k-$249k/yr OnsiteFull Time
12+ YOETop Secret clearance with Full Scope Polygraph; US citizenship; 12 years of relevant experience with a Bachelor's or 10 years with a Master's; ability to obtain/maintain required clearance.
C, C++, Python, Rust, Go, Git, Subversion, Jira, Confluence, Ghidra, Java, JavaScript, PowerShell, Bash, Assembly
3w
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
Software Engineer
Hanover or Fort Meade
$130k-$150k/yr OnsiteFull Time
7+ YOEBachelor's degree and at least seven years of related experience; TS/SCI with polygraph clearance; U.S. citizenship.
C, C++, C#, Java, Python, Artifactory, Docker, Terraform, Ansible, Packer, Jenkins, Bamboo
1mo
Save
Mark Applied
Hide
Software Engineer
Philadelphia, Pennsylvania, United States
$80k-$88k/yr HybridFull Time
1+ YOESoftware Engineer with 1-3 years of experience, BS in MIS/CS/Engineering, strong communication, hybrid work in Philadelphia.
Cloud platforms, Databricks, PySpark, CI/CD, Docker, Terraform, LangChain, Python, Java, SQL, JavaScript, .NET, React, Angular, Azure OpenAI, AWS Bedrock
4w
Save
Mark Applied
Hide
Full Stack Software Engineer (Part-Time)
Baltimore, Maryland, United States
$39k-$50k/yr OnsitePart Time
4+ YOEBachelor's degree in Engineering, Computer Science, or related field; 4 years software development experience; experience in regulated environments preferred.
Python, Java, C, C++, Git, CI/CD, React, Angular, Vue.js, Swift, Kotlin, Flutter, React Native, TensorFlow, PyTorch
4w
Save
Mark Applied
Hide
Back End Developer (7+ Yrs and Clearance Required) – San Antonio, TX
San Antonio or Fort Meade
HybridFull Time
7+ YOE7 years of software development experience; AWS, Kubernetes, RESTful APIs; Jenkins/GitLab; TS/SCI clearance; US citizen.
AWS, Kubernetes, Red Hat Linux, Jenkins, GitLab, Docker, OpenJDK, Ansible, Packer, Maven, Java, Python, PostgreSQL, RDS, Exodus, Luna
1w
Save
Mark Applied
Hide
Software Engineer II - AI Solutions
King of Prussia, Pennsylvania, United States
HybridFull Time
3+ YOE3+ years AI/ML or backend development; Python/Java/JavaScript; healthcare data standards; cloud platforms; CI/CD; strong problem-solving and communication.
Python, Java, JavaScript, TypeScript, PyTorch, TensorFlow, LangChain, Keras, SQL, NoSQL, AWS, Azure, Google Cloud, Oracle Cloud, Palantir, Databricks, Docker, Kubernetes, Grafana, Datadog, Langfuse, CI/CD, DevOps, Microservices, Observability
2mo
Save
Mark Applied
Hide
Backend API’s and Integrations Software Engineer III
Philadelphia, Pennsylvania, United States
$79k-$131k/yr RemoteFull Time
3+ YOE3+ years backend software engineering; Java and JavaScript proficiency; REST/OpenAPI; Kong APIM; HL7 FHIR familiarity; distributed systems; Docker/Kubernetes; CI/CD; YAML.
Java, JavaScript, Node.js, Kong APIM, OpenAPI, REST, gRPC, Docker, Kubernetes, HL7 FHIR, YAML, CI/CD
1w
Save
Mark Applied
Hide
Enterprise Integration Developer
Baltimore, Maryland, United States
$94k-$148k/yr RemoteFull Time
1+ YOEMaster’s degree in Computer Science or IT; 1+ year experience in integrations using Java/Python/R, Mulesoft/OIC/Boomi; document and deploy integration solutions.
Java, Python, R, Mulesoft, OIC, Boomi, Oracle SOA
1mo
Save
Mark Applied
Hide
Software Engineer Mid Level
Hanover, Maryland, United States
$185k-$205k/yr OnsiteFull Time
14+ YOEFourteen years of SWE experience in programs/contracts of similar scope; Bachelor’s degree in a technical discipline; active security clearance with poly required.
Java, JavaScript, Python, AWS, API Gateway, Lambda, Secrets Manager, Parameter Store, Step Functions, DynamoDB, Aurora PostgreSQL, Jenkins, GitHub, CodePipeline, Angular, Vue, PostgreSQL, CI/CD, Jira, Confluence
2mo
Save
Mark Applied
Hide
Backend API’s and Integrations Software Engineer III
Philadelphia, Pennsylvania, United States
$79k-$131k/yr HybridFull Time
3+ YOE3+ years backend software engineering; proficient in Java; JavaScript/Node.js; RESTful API design; OpenAPI/Swagger; Kong APIM; distributed systems; TCP/IP; TLS/mTLS; FHIR; REST/gRPC; OpenAI specs; YAML; Docker/Kubernetes.
Java, JavaScript/Node.js, REST, OpenAPI, Kong API Manager, HL7 FHIR, FHIR, gRPC, Docker, Kubernetes, YAML, OAuth2/OIDC, OpenAI, OpenAI specs
3w
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
Lead Software Engineer
Malvern, Pennsylvania, United States
HybridFull Time
10+ YOE5+ Mgmt10+ years leading omni-channel platforms; BS in Computer Science or related field; strong DevOps, REST, cloud, microservices; proficiency in multiple languages; databases; CI/CD; project tools.
Ruby, Rails, C# .Net, Python, Java, JavaScript, NodeJS, Rust, MongoDB, Postgres, Oracle, SQL Server, DB2, REST, SFTP/FTP, OAuth1, OAuth2, OIDC, TLS, SSH, CI/CD, JIRA, Azure DevOps, AWS, RabbitMQ, Kafka, Redis, Memcached, Hazelcast, Kubernetes, GitOps, Microservices, Cloud
1w
Save
Mark Applied
Hide
Lead Software Engineer - mainframe
Wilmington, Delaware, United States
$128k-$214k/yr HybridFull Time
5+ YOELead mainframe software engineer with COBOL/JCL expertise; guides design, reviews code, and ensures secure, compliant deployments.
COBOL, JCL, Mainframe, Java, Archer/EGRC
1mo
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
CNO Python Software Engineer
Hanover, Maryland, United States
OnsiteFull Time
7+ YOEBachelor’s in CS or related field with 7 years programming, or 11 years experience; Python; Docker; Kubernetes; Ansible; CI/CD; Windows and Linux; security clearance TS/SCI w/ Poly; experience with SQL/NoSQL; software testing and deployment.
Python, Docker, Kubernetes, Ansible, CI/CD, VMware, Java, SQL, NoSQL, Git, Subversion, Confluence, Jira, Crucible
4w
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
DevOps Software Engineer (Mid or Senior)
Annapolis Junction, Maryland, United States
$150k-$210k/yr OnsiteFull Time
8+ YOEEight+ years in DevOps; 5+ years managing development tooling and CI/CD; strong Windows and Linux admin; scripting in Java, Groovy, Python, PowerShell, Bash; experience with IDEs and container platforms; strong communication and team collaboration.
CI/CD tools, Docker, Kubernetes, Linux, Windows, PowerShell, Python, Java, AngularJS, Eclipse, VS Code, Rhapsody, WebStorm, Git, Jenkins
2mo
Save
Mark Applied
Hide
Staff Software Engineer (Secret) {S}
King of Prussia, Pennsylvania, United States
OnsiteFull Time
5+ YOEBachelor's in CS or related field; 5+ years Java/C#/Python; 1+ year JS/Typescript; in-office 3+ days/week; Secret clearance; experience with Java frameworks and cloud/native architectures.
Java, C#, Python, JavaScript, TypeScript, Spring Boot, Quarkus, AWS, Azure, Kubernetes, React, Angular, Git, GitLab, Jira, Confluence
1mo
Save
Mark Applied
Hide
Software Engineer Level 3
Hanover, Maryland, United States
$134k-$162k/yr OnsiteFull Time
20+ YOETS/SCI with Polygraph, 20+ years in software engineering; Bachelor's in CS or related field or 24 years of related experience in lieu of a degree; strong programming and leadership capabilities.
Docker, Terraform, Ansible, Packer, Jenkins, Bamboo, C, C++, C#, Java, Python
3w
Save
Mark Applied
Hide
Mid-Level Software Engineer
East Campus, Maryland, United States
$70k-$190k/yr OnsiteFull Time
3+ YOEMid-level software engineer with full-stack JavaScript (Node.js, TypeScript, React) experience, Docker, Linux, NoSQL, CI/CD, and strong UX/user research emphasis.
JavaScript, Node.js, TypeScript, React, Material UI, Linux, Docker, MongoDB, GitLab CI/CD, AWS, Kubernetes, Python, Java, Spring Boot, OpenCode, Copilot
1mo
Save
Mark Applied
Hide
Senior Software Engineer, AI Enterprise Engineering (Philadelphia, PA, US)
Philadelphia, Pennsylvania, United States
RemoteFull Time
8+ YOE2+ Mgmt8+ years software development; BS/MS in CS/Engineering; 2+ years in tech leadership; experience leading hybrid teams; cloud platforms (Azure/AWS/GCP); vendor management; proven distributed systems
Python, Java, C#, Azure, AWS, GCP
1mo
Save
Mark Applied
Hide
AI/ML Engineer
Aberdeen Proving Ground, Maryland, United States
$170k-$210k/yr RemoteFull Time
5+ YOE5+ years hands-on AI/ML production experience; Python/R/Java; TensorFlow/PyTorch/Scikit-learn; Palantir Foundry; Docker/Kubernetes/MLOps; cloud or hybrid environments; strong communication.
Python, R, Java, TensorFlow, PyTorch, Scikit-learn, Keras, Palantir Foundry, Docker, Kubernetes, MLflow
5d
Save
Mark Applied
Hide
Senior Staff Engineer - Financial Substantiation Platform *Hybrid*
Bethesda or Dallas or Washington or Falls Church or Baltimore or Seattle
$120k-$260k/yr HybridFull Time
10+ YOESenior software engineer with 10+ years, architecture leadership, distributed systems, cloud, and data-focused reconciliation platforms. Strong collaboration with Finance, Compliance, and Product.
Java, C#, Go, REST, gRPC, SQL, AWS, Azure, GCP, CI/CD, Containers, IaC, DevOps, Kubernetes, Kafka, Snowflake, Airflow, Python, PySpark, Snowpark
1mo
Save
Mark Applied
Hide
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
HiringCafe market data
Java Developer Jobs market signals in Middletown, DE, 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
430+
Hiring companies
130+
Fresh sample
42% new in 30d
Salary visibility
78% show pay
Companies appearing in this market
Capital OneGliaCell TechnologiesSunayuT-MobileTAP EngineeringFederal Reserve SystemIntelliforceT-Rex Solutions
Work location mix in visible results
Onsite: 38Remote: 10Hybrid: 7