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Senior Java Backend Developer Jobs in Claymont, DE

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 ...

Java FSD

Wilmington, DE · On-site

$49.50 - $64/hr

... front/back-end developer role * Design and developer application using Core Java * Design and ... developer application using J2EE. Experience in J2EE design patterns * Create/consume Rest APIs ...

Java FSD

Wilmington, DE · On-site

$49.50 - $64/hr

... front/back-end developer role * Design and developer application using Core Java * Design and ... developer application using J2EE. Experience in J2EE design patterns * Create/consume Rest APIs ...

Sr. Java Developer

Wilmington, DE · On-site

$55.50 - $70.75/hr

They are in search of a highly motivated candidate to join their talented team as a Sr. Java Developer, responsible for executing software solutions, design, development, and technical ...

Sr. Java Developer

Wilmington, DE · On-site

$55.50 - $70.75/hr

Provide expert knowledge and guidance for acquisition related backend Java and/or frontend Web features. Ensure that the development teams are adhering to the client SDLC process. Provide technical ...

Java FSD with AWS

Wilmington, DE · On-site

$49.50 - $64/hr

... back-end developer role Design and developer application using Core Java Design and developer application using J2EE. Experience in J2EE design patterns Create/consume Rest APIs & Microservices ...

Java FSD with AWS

Wilmington, DE · On-site

$49.50 - $64/hr

... back-end developer role Design and developer application using Core Java Design and developer application using J2EE. Experience in J2EE design patterns Create/consume Rest APIs & Microservices ...

As a Senior Backend Engineer on the Xumo Software Engineering Team, you will play a key role in ... Java Application Development for Video Streaming Backend Systems * Develop backend systems for ...

AWS Backend Engineer (Java/Go) Location: Malvern, PA Employment Type: Full-Time / Contract Job Summary We are seeking an experienced AWS Backend Engineer with strong expertise in Java and Go to build ...

Full Stack Java Developer

Philadelphia, PA · On-site

$53 - $68.25/hr

The Developer will be part of a product team of designers and full-stack developers (Java back-end) developing a web and mobile application for use by the Front Line Associates & Managers in the ...

Full Stack Java Developer

Philadelphia, PA

$53 - $68.25/hr

The Developer will be part of a product team of designers and full-stack developers (Java back-end) developing a web and mobile application for use by the Front Line Associates & Managers in the ...

Java Full Stack Developers

Wilmington, DE · On-site

$51 - $65.75/hr

... Developer. The role involves working on system design, application development, and ensuring ... Required : • 3 years of experience in Java backend, Microservices, Spring Boot, ReactJS, and AWS ...

Showing results 41-60

Senior Java Backend Developer information

See Claymont, DE salary details

$62.4K

$136.4K

$185.8K

How much do senior java backend developer jobs pay per year?

As of Aug 12, 2026, the average yearly pay for senior java backend developer in Claymont, DE is $136,422.00, according to ZipRecruiter salary data. Most workers in this role earn between $117,600.00 and $152,700.00 per year, depending on experience, location, and employer.

What is a senior Java backend developer?

A Senior Java Backend Developer is responsible for designing, implementing, and maintaining the server-side logic of applications using Java. They work with databases, APIs, and cloud services to ensure high performance and scalability. Additionally, they collaborate with front-end developers, DevOps teams, and business stakeholders to deliver robust and secure solutions. Seniors are expected to mentor junior developers and contribute to architectural decisions and best practices.

What are the typical daily responsibilities of a senior Java backend developer?

Senior Java Backend Developers usually spend their days designing and implementing backend components, reviewing code, and optimizing system performance. You may take part in architecture discussions, mentor junior developers, and troubleshoot complex technical issues. Collaboration with front-end developers, QA testers, and project managers is frequent to ensure seamless integration and successful product delivery. Additionally, you might be responsible for maintaining system documentation and keeping up-to-date with new technologies relevant to backend development. Overall, the role combines hands-on coding with leadership and cross-functional teamwork.

What are the key skills and qualifications needed to thrive in the senior Java backend developer position, and why are they important?

To thrive as a Senior Java Backend Developer, you need deep knowledge of Java, object-oriented design, RESTful APIs, and database systems, typically backed by a degree in computer science or related field and several years of relevant experience. Expertise in frameworks like Spring, ORM tools such as Hibernate, version control systems like Git, and, often, certifications such as Oracle Certified Professional Java Programmer are valued. Strong problem-solving, leadership, and clear communication skills help in mentoring junior developers and collaborating across teams. These competencies ensure robust, scalable backend solutions and effective team coordination in complex software projects.

What are the most commonly searched types of Java Backend Developer jobs in Claymont, DE? The most popular types of Java Backend Developer jobs in Claymont, DE are:
What are popular job titles related to Senior Java Backend Developer jobs in Claymont, DE? For Senior Java Backend Developer jobs in Claymont, DE, the most frequently searched job titles are:
What job categories do people searching Senior Java Backend Developer jobs in Claymont, DE look for? The top searched job categories for Senior Java Backend Developer jobs in Claymont, DE are:
What cities near Claymont, DE are hiring for Senior Java Backend Developer jobs? Cities near Claymont, DE with the most Senior Java Backend Developer job openings:
Infographic showing various Senior Java Backend Developer job openings in Claymont, DE as of August 2026, with employment types broken down into 79% Full Time, 7% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $136,422 per year, or $65.6 per hour.

Backend Java Developer

1 point system

Newark, DE • On-site

$49.25 - $64/hr

Contractor

Posted 22 days ago


Job description

Job Summary:

Must Have: Java/J2ee, Oracle Backend, WebSphere, Kafka, spring boot, OpenShift, containerization, Kubernetes


Position Summary
Senior Application Developer will be responsible/need to understanding business needs and update application code with unit testing, provide dev support during testing, creating proof of concept for new technology evaluation, support application deployment and creating production plan. They will be working on an agile team with a team lead. May have client interactions.
Required Qualifications
o Strong Knowledge and expertise in container & cloud technologies like Kubernetes, OpenShift, AWS and Azure
o Expertise in Java/J2EE technologies with minimum of 7 year of experience.
o Should have good knowledge of technologies like Spring, Spring Integration, Cassandra, Kafka, MQ, NOSQL & Restful services, WS-Security,
o Hands on experience on tools like Eclipse, IntelliJ, Splunk, Dynatrace & Autosys etc
o Proficiency in writing complex SQL queries (Oracle/SQL Server)
o proficiency in writing complex Unix/Linux scripting
o Hands on experience in UI technologies like Angular and React
o Hands on experience on Code Quality Tools like JUnit, Sonar/Crucible
o Experience on modern development methodology including Agile