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Java Engineer Jobs in Middletown, DE, US
440+ java engineer jobs from 130+ companies hiring in Middletown, DE, US.
2mo
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Full Stack Developer
Baltimore, Maryland, United States
$124k-$170k/yr RemoteFull Time
3+ YOEBachelor's degree or equivalent experience; 3 years in similar role; proficient in Java/Go/Python; API development platforms; AWS; API-first; Agile.
Java, Go, Python, AWS, API Gateway, Apigee, Kong, CMS, Snowflake, Databricks, CloudFormation, Jenkins
2mo
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Senior Software Engineer – Cloud & Full Stack
Wilmington or Columbus
$81k-$114k/yr OnsiteFull Time
6+ YOE6+ years experience in AWS, SQL, React Native, Spring Boot, Java, JavaScript, and MySQL; onsite role in Wilmington, DE or Columbus, OH; no visa transfer.
AWS, SQL, React Native, Spring Boot, Java, JavaScript, MySQL
3w
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Salesforce Senior Developer
Wilmington or Cincinnati or Worthington
$90k-$121k/yr HybridFull Time
5+ YOE5+ years Salesforce development; Bachelor's or equivalent; Salesforce Platform Developer II; multiple tech skills including Apex, LWC, Visualforce, JSON, XML, JavaScript, SQL, Java, C#, C++, SOAP, AWS/Azure; multiple Salesforce certifications.
Apex, LWC, Visualforce, JSON, XML, JavaScript, SQL, Java, C#, C++, SOAP, AWS, Azure, GearSet
1mo
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Senior DevOps Engineer
Omaha or Phoenix or Lehi or Philadelphia
$95k-$147k/yr HybridFull Time
7+ YOESenior DevOps Engineer with 7+ years in cloud, IaC, CI/CD; AWS, Azure DevOps; automation; scripting (Terraform, Python); Linux/Windows; BS preferred.
AWS, Azure DevOps, Terraform, Python, Git, Node.js, Java, .NET, Linux, Windows, CI/CD
1mo
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1650 - Software Developer
Belcamp, Maryland, United States
$83k-$140k/yr OnsiteFull Time
Sigma Defense: Develops tactical communications and intelligence systems for defense.
10+ YOE10+ years in software development; 5+ years DoD software support; strong requirements analysis, architecture, and coding skills; Java, Python, C#, and JavaScript; ability to document software; U.S. citizen; Secret security clearance or higher; Bachelor's Science degree.
Java, Python, C#, JavaScript
1w
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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
3w
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Software Engineer-Mobile Development (Android)
Philadelphia, Pennsylvania, United States
$65k-$80k/yr OnsiteFull Time
5+ YOEStrong proficiency in React Native with Android focus; solid Android fundamentals; experience with Android Studio, Gradle, Android SDK; Java/Kotlin/JavaScript/TypeScript; REST APIs; Git; AWS; SQL databases; automated tests; team collaboration.
React Native, Java, Kotlin, Android Studio, Gradle, Retrofit, Room, WorkManager, Google Play Console, AWS, Git, SQL, PostgreSQL, Oracle, MSSQL, Node.js, .NET Core, PHP, Docker, CI/CD, API design and development
2d
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Software Engineer Level 2
Annapolis Junction, Maryland, United States
OnsiteFull Time
14+ YOETS/SCI with Polygraph clearance required; 14+ years SWE experience; BS in CS or 4 years equivalent experience; Zabbix, Python and Java in Linux environment.
Python, Java, Zabbix, Linux
6d
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Senior Application Developer
Philadelphia, Pennsylvania, United States
$84k-$135k/yr RemoteFull Time
3+ YOEBachelor in Computer Science or related field; 3-5 years application development; Java, JavaScript; Oracle SQL/PL-SQL; Ellucian Banner experience; SDLC and Agile; enterprise environments
Java, JavaScript, Oracle SQL, PL/SQL, HTML, CSS, REST, SOAP, Unix/Linux, Shell scripting, Ellucian Banner APIs, Page Builder
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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Embedded Developer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Tiber Technologies: Providing specialized engineering and security services for federal missions.
Must be a U.S. citizen; active clearance with a polygraph; Bachelor's degree in CS, engineering, or related field; embedded/low-level development experience preferred
Linux, Windows, Embedded systems, Ghidra, C, C++, Python, Rust, Go, Git, Subversion, Jira, Confluence, PowerShell, Bash, Assembly, Java, JavaScript
2mo
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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
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
3w
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Associate Database Platform Developer
Wilmington, Delaware, United States
$90k-$110k/yr HybridFull Time
Experience with Python, Perl, or Java; basic SQL and relational databases; software development basics; strong problem solving; team collaboration.
Python, Perl, Java, SQL
6d
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Senior Application Developer
Philadelphia, Pennsylvania, United States
$84k-$135k/yr RemoteFull Time
3+ YOEBachelor in Computer Science or related field; 3-5 years of application development in enterprise environments; experience with Ellucian Banner, Oracle SQL/PLSQL, Java/JavaScript; web tech, Unix/Linux, Python a plus; SDLC and Agile experience.
Java, JavaScript, HTML, CSS, REST, SOAP, Oracle SQL, PL/SQL, Python, Unix/Linux, Shell scripting, Ellucian Banner, Page Builder
2mo
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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
4w
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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
1w
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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
2w
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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
1mo
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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
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Lead CNO Developer (Onsite)
Annapolis Junction, Maryland, United States
OnsiteFull Time
12+ YOE5+ MgmtBachelor’s degree plus extensive experience; 12+ yrs in programming (Assembly, C, C++, Java, Perl, Python); 10+ yrs on CNO tools; 5+ yrs leading teams; 4+ yrs evading IDS; 4+ yrs sockets programming.
Python, C, C++, Java, Perl, Assembly, Bash, PowerShell, IDA Pro, Ghidra, OllyDbg, Git, Networking, IDS evasion
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
3mo
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Cloud Engineer- Data/AI Focused
Rochester or Charlotte or Nashville or New York City or Washington or Philadelphia or Atlanta
HybridFull Time
1+ YOE1-3 years cloud experience, AWS cert or ability to obtain, SQL and at least one programming language, basic data engineering, familiarity with AWS data services, Git, and IaC concepts.
AWS, Glue, Lambda, Step Functions, EMR, RDS, Aurora, Redshift, DynamoDB, S3, SQL, Python, Java, Git, Terraform, Infrastructure as Code
2mo
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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
1mo
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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
2mo
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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
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CNO Reverse Engineer 2
Hanover or Fort Meade
$170k-$200k/yr OnsiteFull Time
6+ YOEReverse engineering of hardware/software; multiple programming languages; TS/SCI w/Poly; onsite in Hanover, MD; Bachelor's/Master's with years of experience.
IDA Pro, Ghidra, OllyDbg, WinDbg, Subversion, Git, C, C++, Java, Python, C#, Perl
1mo
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SDET Engineer
Philadelphia, Pennsylvania, United States
$72k-$130k/yr OnsiteFull Time
2+ YOEBachelor's degree plus 2 years' related experience or equivalent; 2-4 years in development languages and automation tools; Agile, end-to-end testing, problem solving, analytics; 18+ and authorized to work in the US.
TypeScript, JavaScript, Python, Java, Cypress, Selenium, TestNG, Appium, Sauce Labs, Rest Assured, Postman, Cucumber, Jasmine, Protractor
1mo
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SDET Engineer
Philadelphia, Pennsylvania, United States
$72k-$130k/yr OnsiteFull Time
2+ YOE2-4 years in test automation; proficient in Cypress, Selenium, TestNG, Appium, Rest Assured; Agile and end-to-end testing; Unix/Windows environments; Bachelor's degree.
Cypress, Selenium, TestNG, Appium, Sauce Labs, Rest Assured, Postman, Cucumber, Jasmine, Protractor, TypeScript, JavaScript, Python, Java
1mo
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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
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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
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
5d
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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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Mobile App Developer
Philadelphia, Pennsylvania, United States
$72k-$100k/yr HybridFull Time
3+ YOEBachelor’s degree in CS/Engineering; 3+ years mobile app development; Swift/Kotlin; cross‑platform frameworks; REST APIs; mobile UI/UX; App Store/Play deployment; Agile; health/pharma experience preferred.
Swift, Kotlin, Java, React Native, Flutter, RESTful APIs, Cloud Messaging APIs, Agile
3w
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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
5d
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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
5d
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Associate Director Staff Engineer Software
Baltimore, Maryland, United States
OnsiteFull Time
Senior backend architect with hands-on engineering, API and data integration expertise; Kubernetes, GraphQL, microservices, and CI/CD experience; comfortable in financial services environments.
Kubernetes, Docker, GraphQL, REST, Microservices, Java, Kotlin, Node.js, Go, CI/CD
1mo
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Mulesoft Developer
Malvern or Remote
RemoteFull Time
4+ YOE4+ years MuleSoft development; design, develop, test, deploy MuleSoft integrations; Salesforce and ERP experience; API-led design; MuleSoft certifications.
MuleSoft Anypoint Platform, RAML, DataWeave, Anypoint Studio, Java, XML, JSON, SQL, Salesforce REST, Salesforce SOAP, Salesforce Bulk API, Salesforce Platform Events, Splunk, CloudHub, API Manager, runtime monitoring
1mo
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Web Developer
Annapolis Junction, Maryland, United States
$144k-$210k/yr HybridFull Time
8+ YOEActive TS/SCI clearance with polygraph; 8+ years web development experience; BS in related field or equivalent experience; strong front-end and API integration skills.
HTML, CSS, JavaScript, React, Angular, Vue, REST API, Jira, Confluence, 508 accessibility, AWS, Docker, Kubernetes, Node.js, Java, Linux scripting, Git, Frontend testing
HiringCafe market data
Java Engineer 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
440+
Hiring companies
130+
Fresh sample
40% new in 30d
Salary visibility
77% show pay
Companies appearing in this market
T-MobileCapital OneTAP EngineeringBlackRockCognizantOrion Advisor SolutionsPublicis GroupeT-Rex Solutions
Work location mix in visible results
Onsite: 32Hybrid: 14Remote: 7