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Senior Java Developer Jobs in Delaware (NOW HIRING)

KaashTech LLC

Backend Java Developer

Newark, DE · On-site

$49.50 - $64.25/hr

Backend Java Developer (W2 Only) Local or Near by Newark, DE Introduction: We are seeking a talented Backend Java Developer to join our team in Newark, DE. The ideal candidate will be responsible for ...

New

Inframatix Inc

Sr Java Full Stack Developer

Wilmington, DE

$51 - $65.75/hr

Job Title: Sr Java Full Stack Developer Location: Wilmington, DE Duration: 2+ years Required Experience "Minimum 10+ years Overview The people they are seeking, now, will be part of their Enterprise ...

1 point system

Backend Java Developer

Newark, DE · On-site

$49.25 - $64/hr

Java/J2ee, Oracle Backend, WebSphere, Kafka, spring boot, OpenShift, containerization, Kubernetes Position Summary Senior Application Developer will be responsible/need to understanding business ...

Inframatix Inc

Sr Java Full Stack Developer

Wilmington, DE · On-site

$51 - $65.75/hr

Job Title: Sr Java Full Stack Developer Location: Wilmington, DE Duration: 2+ years Required Experience "Minimum 10+ years Overview The people they are seeking, now, will be part of their Enterprise ...

Arka Infotech Inc

Java Developer - AngularJS

Wilmington, DE · On-site

$51 - $65.75/hr

Java Developer - Angular.JS Location: Wilmington, DE Contract Length: 2 years F2F REQUIRED - LOCAL ONLY Visa copy needed for submission Requirements: Extensive experience with Java/J2EE application ...

Arka Infotech Inc

Java Developer AngularJS

Wilmington, DE · On-site

$51 - $65.75/hr

Title: Java/Angular.Js Developer Location: Wilmington, DE Contract Length: 2 years F2F REQUIRED - LOCAL CANDIDATES ONLY Keys: Very strong AngularJS, Core Java, Spring, RESTful. Requirements:

Judge Group, Inc.

FullStack Java Developer

Wilmington, DE · On-site

$51 - $65.75/hr

About the Role We are seeking a Full Stack Java Developer with strong backend expertise and hands-on frontend development experience to help design, build, and maintain scalable enterprise ...

New

Apton inc

Senior Java Microservices developer

Wilmington, DE · On-site

$55.50 - $70.75/hr

Java, J2ee, spring, spring boot, Microservices, API Qualifications Need strong consultant with microservices and spring boot apis Additional Information All your information will be kept confidential ...

Apton Inc

Senior Java Microservices developer

Wilmington, DE · On-site

$55.50 - $70.75/hr

Java, J2ee, spring, spring boot, Microservices, API Qualifications Need strong consultant with microservices and spring boot apis Additional Information All your information will be kept confidential ...

Info Way Solutions

Java Full Stack Engineer

Wilmington, DE · On-site

$51 - $65.75/hr

Intermediate, Senior, Super Senior) • Strong hands-on experience in Java, Python, and AWS • Proficiency with CI/CD, DevOps practices, Git, and unit testing • Experience with authentication ...

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Senior Java Developer information

See Delaware salary details

$11

$62

$86

How much do senior java developer jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for senior java developer in Delaware is $62.88, according to ZipRecruiter salary data. Most workers in this role earn between $55.10 and $70.24 per hour, depending on experience, location, and employer.

What is a senior Java developer?

Senior Java Developers are experienced software engineers who specialize in using the Java programming language to design, develop, and maintain complex applications. They typically lead development teams, oversee project architecture, and ensure code quality through best practices. In addition to strong coding skills, they often mentor junior developers and collaborate with stakeholders to deliver robust software solutions. Their expertise is crucial in building scalable, high-performance applications across various industries.

What are the key skills and qualifications needed to thrive as a senior Java developer?

To thrive as a Senior Java Developer, you need advanced proficiency in Java programming, experience with software design patterns, and a strong grasp of backend development, often supported by a degree in computer science or related field. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git, as well as knowledge of cloud platforms, is typically required. Excellent problem-solving, leadership, and communication skills help you guide teams and collaborate effectively. These competencies are crucial for delivering robust, scalable software solutions and driving technical success within development teams.

What are some common challenges senior Java developers face when working on large-scale enterprise projects?

Senior Java Developers often encounter challenges such as maintaining code quality across large codebases, managing dependencies between modules, and ensuring optimal application performance. Collaborating with cross-functional teams—including QA, DevOps, and product management—requires clear communication and effective problem-solving. Additionally, staying updated with the latest Java frameworks and best practices is essential for delivering scalable and maintainable solutions in complex enterprise environments.

What is the difference between Senior Java Developer vs Java Software Engineer?

AspectSenior Java DeveloperJava Software Engineer
Required CredentialsBachelor's in CS or related, Java certifications often preferredBachelor's in CS or related, Java certifications beneficial
Work EnvironmentTeam lead roles, project management, mentoringDevelopment-focused, coding, testing, and implementation
Employer & Industry UsageTech companies, finance, e-commerceSoftware firms, startups, enterprise IT
Common Search & ComparisonOften compared for experience level and responsibilitiesSimilar roles with slight variations in scope

The main difference between a Senior Java Developer and a Java Software Engineer lies in their responsibilities and experience. Senior Java Developers typically take on leadership, mentoring, and project management roles, while Java Software Engineers focus more on coding, development, and technical implementation. Both roles require strong Java skills and relevant credentials, but the Senior Java Developer usually has more experience and a broader scope of responsibilities.

What are the most commonly searched types of Java Developer jobs in Delaware?

The most popular types of Java Developer jobs in Delaware are:

What are popular job titles related to Senior Java Developer jobs in Delaware?

For Senior Java Developer jobs in Delaware, the most frequently searched job titles are:

What job categories do people searching Senior Java Developer jobs in Delaware look for?

The top searched job categories for Senior Java Developer jobs in Delaware are:

What cities in Delaware are hiring for Senior Java Developer jobs?

Cities in Delaware with the most Senior Java Developer job openings:

What are popular job titles related to Senior Java Developer jobs in DE?

For Senior Java Developer jobs in DE, the most frequently searched job titles are:

Senior Java Developer jobs near you
Infographic showing various Senior Java Developer job openings in Delaware as of August 2026, with employment types broken down into 80% Full Time, 6% Part Time, and 14% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $130,794 per year, or $62.9 per hour.

Senior Java AI Developer (RAG/LLM)

Donato Technologies, Inc

Wilmington, DE • On-site

$70/hr

Contractor

Posted 12 days ago

Job description

The client is looking for a Senior Java AI Developer to develop enterprise-scale Generative AI applications. The ideal candidate will possess strong Java backend expertise along with hands-on experience building Retrieval-Augmented Generation (RAG) solutions and integrating enterprise applications with Large Language Models.Required Skills
  • 10+ years of Java development experience
  • Strong experience with Java 17+ and Spring Boot
  • Hands-on experience building Retrieval-Augmented Generation (RAG) systems
  • Experience with Spring AI, LangChain4j, or similar Java AI frameworks
  • Experience integrating OpenAI, Azure OpenAI, Claude, Gemini, or Llama models
  • Strong knowledge of vector databases such as Pinecone, Milvus, Weaviate, FAISS, or ChromaDB
  • Experience implementing semantic search and document retrieval pipelines
  • Strong REST API and Microservices development experience
  • Experience with Kafka or other messaging platforms
  • Experience with Docker, Kubernetes, and OpenShift
  • Experience with AWS, Azure, or Google Cloud Platform
  • Strong SQL and NoSQL database experience
  • Experience with Git, Jenkins, and CI/CD
  • Experience with Agile development methodologies
Preferred Skills
  • Banking or financial services experience
  • Knowledge of AI agents and autonomous workflows
  • Experience with Spring AI ecosystem
  • Experience implementing enterprise security standards
  • Experience with AI governance and monitoring
  • Knowledge of prompt engineering and model evaluation
Responsibilities
  • Design and develop enterprise Java-based AI applications
  • Build scalable RAG architectures using Java and Spring Boot
  • Integrate LLMs into enterprise applications
  • Develop document ingestion, indexing, and retrieval pipelines
  • Build secure APIs for AI services
  • Optimize retrieval accuracy and response quality
  • Collaborate with architects, ML engineers, and business teams
  • Deploy AI services using containerized cloud platforms
  • Ensure application performance, scalability, and compliance
  • Provide technical leadership and mentor development teams
Nice to Have:
  • Experience with LangGraph or AI Agent frameworks
  • MCP (Model Context Protocol) implementation experience
  • Knowledge Graph integration
  • AI observability tools (LangSmith, Arize AI, TruLens)
  • NVIDIA NIM or enterprise inference platforms
  • Financial regulatory compliance experience
  • Exposure to Agentic AI architectures

Donato Technologies Inc. is a trusted IT staffing, consulting, and software development partner headquartered in Dallas, Texas. We support clients across industries by understanding their unique business needs and delivering tailored technology and workforce solutions. Our focus is on connecting the right talent with the right opportunity-ensuring clients receive dependable, skilled professionals and candidates receive meaningful career growth and support. We work closely with small to mid-sized organizations to provide flexible, high-quality services that drive performance, innovation, and long-term success.