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Senior Java Developer Jobs in Claymont, DE (NOW HIRING)

Net Orbit

Java Developer(mid-level)

Wilmington, DE · On-site

$49.50 - $64/hr

Sr. Java Developer Wilmington, DE/NYC/Atlanta, GA • Strong Java programming skills • 5-9 years practical software development experience • Robust object-oriented design pattern knowledge and ...

Ampcus Inc

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 ...

Net Orbit

Sr. Java Backend Developer

Wilmington, DE · On-site

$49 - $63.50/hr

Sr. Java Developer Wilmington, DE/NYC/Atlanta, GA Need resumes. Resource with 10-15 years hands on and preferably able to lead teams. Working with distributed systems • Strong Java programming ...

Dellfor Technologies

senior java developer

Delaware City, DE · On-site

$55.25 - $70.50/hr

Competence in using Java IDE tools of Eclipse, GGTS, Rational Application Developer (RAD), WebSphere Application Developer (WSAD) and Web Logic Workshop to develop dynamic web applications. Good ...

IntraEdge

Senior Java Engineer

Middletown, DE · On-site

$54 - $68.75/hr

We are seeking an experienced Senior Java Engineer with 10+ years of hands-on experience designing ... Collaborate with product owners, architects, QA, and DevOps teams to deliver high-quality software ...

Spruce Infotech Inc

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 ...

Pronix Inc

Senior Java Developer with AWS

Malvern, PA · On-site

$56.25 - $71.75/hr

Backend Developer (AWS, Python, Java ) 2 Positions- Only W2 Location: Malvern, PA (Hybrid 3 days in office and 2 days remote) Duration: 12 Months Key responsibilities Design and develop backend ...

Arka Infotech Inc

Sr.Core Java Developer

Wilmington, DE

$55.50 - $70.75/hr

Interviews can be arranged immediately Sr. Core Java Developer Location: Wilmington, DE Length: 2 years No. of postions: 10 F2F REQUIRED Locals only Keys: Local to the Wilmington/Newark, DE area or ...

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Senior Java Developer information

See Claymont, DE salary details

$10

$61

$84

How much do senior java developer jobs pay per hour?

As of Aug 11, 2026, the average hourly pay for senior java developer in Claymont, DE is $61.29, according to ZipRecruiter salary data. Most workers in this role earn between $53.70 and $68.46 per hour, depending on experience, location, and employer.

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 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 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 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 most commonly searched types of Java Developer jobs in Claymont, DE? The most popular types of Java Developer jobs in Claymont, DE are:
What are popular job titles related to Senior Java Developer jobs in Claymont, DE? For Senior Java Developer jobs in Claymont, DE, the most frequently searched job titles are:
What job categories do people searching Senior Java Developer jobs in Claymont, DE look for? The top searched job categories for Senior Java Developer jobs in Claymont, DE are:
What cities near Claymont, DE are hiring for Senior Java Developer jobs? Cities near Claymont, DE with the most Senior Java Developer job openings:
Senior Java Developer jobs near you

Senior JAVA Developer - Philadelphia, PA

National Guard Employment Network

Philadelphia, PA • On-site

$100K/yr

Full-time

Re-posted 3 days ago

Job description


ATTENTION MILITARY AFFILIATED JOB SEEKERS - Our organization works with partner companies to source qualified talent for their open roles. The following position is available to Veterans, Transitioning Military, National Guard and Reserve Members, Military Spouses, Wounded Warriors, and their Caregivers. If you have the required skill set, education requirements, and experience, please click the submit button and follow the next steps. Unless specifically stated otherwise, this role is "On-Site"
Senior JAVA Developer
Security Clearance - Secret
US-PA-Philadelphia
Responsibilities
Noblis MSD is seeking a Senior Java Developer to support a large-scale software project for U.S. Navy programs. This is an onsite position based at the Philadelphia Navy Yard.
Noblis MSD supports Naval Sea Systems Command (NAVSEA) and Naval Surface Warfare Center Philadelphia Division (NSWCPD) by providing engineering, software development, systems integration, cybersecurity, logistics, and life-cycle support to Navy programs.
The Senior Java Developer will work as part of a software development team to design, develop, maintain, test, and support Java-based applications. The ideal candidate has experience working with large software codebases, helping improve existing applications, and supporting other developers through collaboration, code reviews, and technical guidance. Other languages include Gradle, bash, python, structured text, and ladder logic.
Responsibilities:
  • Design, develop, maintain, and enhance Java software applications
  • Support software development, troubleshooting, testing, integration, and release activities
  • Work with large existing Java codebases and help improve maintainability over time
  • Review, understand, and update existing software as needed
  • Support modernization, refactoring, and performance improvement efforts
  • Participate in code reviews and help promote good software development practices
  • Support build, deployment, and release activities using tools such as GitLab, Jira, SonarQube, or similar platforms
  • Assist with troubleshooting software issues identified during development, integration, testing, or field support
  • Help mentor or guide other developers when needed
  • Collaborate with software developers, testers, engineers, cybersecurity personnel, and program stakeholders
  • Support technical documentation such as design notes, release notes, installation instructions, and user/support guidance
  • Communicate status, blockers, risks, and technical issues clearly and professionally

Required Qualifications
  • Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Software Engineering, Information Systems, or a relevant technical discipline
  • 8+ years of experience developing software using Java
  • Experience working with large or multi-module Java applications
  • Experience maintaining, troubleshooting, or refactoring existing Java codebases
  • Strong understanding of object-oriented design and software development best practices
  • Experience with Java 17 or later
  • Familiarity with Java modernization concepts, such as records, enhanced switch, modularity, dependency management, or related language/platform improvements
  • Experience with version control tools such as Git or GitLab
  • Experience using issue tracking tools such as Jira or similar platforms
  • Familiarity with CI/CD concepts and tools such as GitLab CI/CD, or similar platforms
  • Familiarity with code quality tools such as SonarQube or similar platforms
  • Ability to work in a Linux environment
  • Ability to work as part of a team and communicate effectively with people at varying technical levels
  • Must be a U.S. Citizen
  • Ability to obtain a Secret clearance

Desired Qualifications
  • Master's degree in Computer Science, Computer Engineering, Electrical Engineering, Software Engineering, Information Systems, or a relevant technical discipline
  • Experience supporting modernization or refactoring of large Java applications
  • Experience with Java platform migrations
  • Experience with Bash scripting or general automation scripting
  • Experience with Docker, containers, or RHEL 8/9 environments
  • Familiarity with JGroups or distributed Java applications
  • Experience helping guide, mentor, or support other developers
  • Experience supporting software integration and formal test events
  • Experience writing clear technical documentation, including design notes, release notes, and installation guidance
  • Experience working on DoD, Navy, or other government software programs
  • CompTIA Security+, Linux certification, Oracle Java certification, or similar certifications are a plus

Posted Salary Range
USD $120,700.00 - USD $188,725.00 /Yr.

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