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Senior Java Software Developer Jobs in Wilmington, DE

Sarian, Inc.

Sr. Java Developer

Newark, DE · On-site

$56 - $71.25/hr

Virtual Drive is planned on Tuesday May 6th from 10 am to 5 pm EST Role: Sr. Java Developer Location: Newark, DE Job Type: Fulltime JD: Must Have Technical/Functional Skills: * Experienced in ...

Prophecy Technologies

Senior Java Developer

Wilmington, DE · On-site

$55.50 - $70.75/hr

Senior Java Developer (Spring Boot, PySpark & AWS) Location: Wilmington, DE * Total IT experience - 10+ years. * Strong expertise in Spring Boot and Microservices. * Deep hands-on experience in ...

Monitise

Sr Software Engineer - Java

King Of Prussia, PA · On-site

$124K - $163K/yr

Job Title Sr Software Engineer - Java About your role: Fiserv is a global leader in payments and ... Agile & DevOps Execution: Show proficiency in DevOps and Agile principles by actively participating ...

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 ... software development experience • Robust object-oriented design pattern knowledge and ...

Monitise

Sr Software Engineer - Java

King Of Prussia, PA · On-site

$124K - $163K/yr

Job Title Sr Software Engineer - Java About your role: Fiserv is a global leader in payments and ... Agile & DevOps Execution: Show proficiency in DevOps and Agile principles by actively participating ...

Fiserv, Inc.

Sr Software Engineer - Java

King Of Prussia, PA · On-site

$124K - $163K/yr

Job Title Sr Software Engineer - Java About your role: Fiserv is a global leader in payments and ... Agile & DevOps Execution: Show proficiency in DevOps and Agile principles by actively participating ...

Fiserv, Inc.

Sr Software Engineer - Java

King Of Prussia, PA · On-site

$124K - $163K/yr

Job Title Sr Software Engineer - Java About your role: Fiserv is a global leader in payments and ... Agile & DevOps Execution: Show proficiency in DevOps and Agile principles by actively participating ...

Sarian, Inc.

Core Java Developer

Newark, DE · On-site

Role: Sr. Java Developer Location: Newark, DE Onsite position Fulltime position JD Skill: Sr. Java Developer * Experienced in building highly scalable Java and J2EE applications. * Good experience in ...

Inframatix Inc

Sr Java Full Stack Developer

Wilmington, DE

$51 - $65.75/hr

The company seamlessly integrates software, deep professional services & expert support for all ... Job Title: Sr Java Full Stack Developer Location: Wilmington, DE Duration: 2+ years Required ...

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 ...

Dellfor Technologies

senior java developer

Delaware City, DE · On-site

$55.25 - $70.50/hr

Company Description Dellfor Technologies is founded by software professionals with fresh approach ... Competence in using Java IDE tools of Eclipse, GGTS, Rational Application Developer (RAD ...

Inframatix Inc

Sr Java Full Stack Developer

Wilmington, DE · On-site

$51 - $65.75/hr

The company seamlessly integrates software, deep professional services & expert support for all ... Job Title: Sr Java Full Stack Developer Location: Wilmington, DE Duration: 2+ years Required ...

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Senior Java Software Developer information

See Wilmington, DE salary details

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How much do senior java software developer jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for senior java software developer in Wilmington, DE is $60.95, according to ZipRecruiter salary data. Most workers in this role earn between $53.41 and $68.08 per hour, depending on experience, location, and employer.

What is a senior Java software developer?

A Senior Java Software Developer is an experienced professional responsible for designing, developing, and maintaining complex software applications using the Java programming language. They typically lead development teams, mentor junior developers, and contribute to architectural decisions. Senior Java Developers are expected to have a deep understanding of Java frameworks, best coding practices, and software development methodologies. They also collaborate with stakeholders to deliver robust, scalable, and efficient software solutions.

What are some common challenges senior Java software developers face when leading projects, and how can they effectively address them?

Senior Java Software Developers often encounter challenges such as balancing hands-on coding with mentoring junior team members, managing project timelines, and ensuring code quality across large, distributed systems. To address these, it’s crucial to establish clear communication channels, implement robust code review processes, and leverage agile methodologies for project management. Additionally, staying up-to-date with the latest Java frameworks and best practices helps in making informed architectural decisions and streamlining development workflows.

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

To thrive as a Senior Java Software Developer, you need advanced proficiency in Java programming, strong knowledge of software design patterns, and experience with frameworks like Spring, typically backed by a bachelor's degree in computer science or a related field. Familiarity with tools such as Git, Maven, Jenkins, and cloud platforms, along with relevant certifications like Oracle Certified Professional Java SE, is often required. Strong problem-solving abilities, effective communication, and leadership skills help in mentoring teams and collaborating on complex projects. These skills ensure the delivery of robust, scalable software solutions and foster innovation within development teams.

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

AspectSenior Java Software DeveloperJava Software Engineer
Required CredentialsBachelor's degree in Computer Science or related field; extensive Java experience; certifications like Oracle Java CertificationBachelor's degree in Computer Science or related field; Java programming skills; certifications are common but not mandatory
Work EnvironmentDevelops complex applications, mentors junior staff, leads projectsDesigns and develops Java applications, collaborates with teams, implements features
Employer & Industry UsageUsed across tech companies, finance, healthcare, and enterprise sectorsCommon in software development firms, IT departments, and tech startups

The main difference between a Senior Java Software Developer and a Java Software Engineer lies in experience level and responsibilities. Senior developers often lead projects and mentor others, while Java Software Engineers focus on designing and implementing Java applications. Both roles require strong Java skills and similar educational backgrounds, but seniority involves additional leadership and project management duties.

What cities near Wilmington, DE are hiring for Senior Java Software Developer jobs? Cities near Wilmington, DE with the most Senior Java Software Developer job openings:
Senior Java Software Developer jobs near you
Infographic showing various Senior Java Software Developer job openings in Wilmington, DE as of July 2026, with employment types broken down into 85% Full Time, 10% Part Time, and 5% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $126,809 per year, or $61 per hour.

JAVA Developer - Philadelphia, PA

National Guard Employment Network

Philadelphia, PA • On-site

$75K - $100K/yr

Full-time

Re-posted 8 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"
JAVA Developer
Security Clearance -Interim Secret
US-PA-Philadelphia
Responsibilities
Noblis MSD is seeking a Java Software Developer to support a large-scale software project for U.S. Navy programs. This is an onsite position 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 Java Developer will work as part of a software development team to design, develop, maintain, test, and support Java-based applications. The ideal candidate is comfortable working in a large software codebase, collaborating with other developers and engineers, and supporting software updates through the full development lifecycle.
Responsibilities include:
  • Develop, maintain, and enhance Java software applications
  • Support software design, coding, testing, troubleshooting, and integration activities
  • Work with large existing Java codebases and help improve maintainability over time
  • Review, understand, and update existing software as needed
  • Support software builds, deployments, and release activities
  • Use tools such as GitLab, Jira, SonarQube, or similar tools to support software development and delivery
  • Assist with troubleshooting software issues identified during development, integration, testing, or field support
  • Collaborate with software developers, testers, engineers, cybersecurity personnel, and program stakeholders
  • Participate in code reviews and help maintain good software development practices
  • Support documentation such as software 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
  • 3+ years of experience developing software using Java
  • Experience working with large or multi-module software applications
  • Experience maintaining, troubleshooting, or refactoring existing Java code
  • Familiarity with object-oriented design and software development best practices
  • Familiarity with version control tools such as Git or GitLab
  • Experience using issue tracking tools such as Jira or similar platforms
  • Ability to work in a Linux environment or willingness to develop Linux proficiency
  • 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 Security Clearance
  • Fluent and able to navigate in a Linux Operating System

This position is on-site at the Philadelphia Naval Yard.
Desired Qualifications
  • Experience with Java 17 or later
  • Experience supporting modernization or refactoring large Java applications
  • Familiarity with CI/CD concepts and tools such as GitLab CI/CD, or similar platforms
  • Familiarity with SonarQube or similar code quality tools
  • 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 supporting software integration and formal test events
  • Experience writing clear technical documentation, including design notes, release notes, and installation guidance
  • CompTIA Security+, Linux certification, Oracle Java certification, or similar certifications are a plus
  • Understanding of PLC technologies such as PLC I/O mapping, ladder logic behaviors, and Allen-Bradley ControlLogix/CompactLogix
  • Working knowledge of dependency injection and Java Platform Module System (JPMS)
  • Familiar with SCADA HMI systems like FactoryTalk View, Ignition, or Wonderware

Posted Salary Range
USD $78,900.00 - USD $123,300.00 /Yr.

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