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Junior Java Developer Jobs in Pennsauken, NJ (NOW HIRING)

Java DevOps

Philadelphia, PA · On-site

$52.25 - $71.75/hr

At least 4 years of experience in Java programming, RESTful Webservices development, and Spring framework, along with either knowledge or experience with Spring Boot and DevOps Process (Agile)

Microservices Developer (JAVA)

Philadelphia, PA

$51.50 - $66.50/hr

Deep background in Java language programming (5+ years) and implementation using Spring Framework * Agile scrum delivery experience * Experience in working with continuous delivery framework using ...

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 ...

Senior Software Engineer (Java Full Stack) Location: Fort Washington, PA (Hybrid) Experience: 6 to 10 years Job Summary: We are seeking a highly skilled and adaptable Full Stack Developer with deep ...

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 ...

Locals Only Urgent Need JAVA Developer

Philadelphia, PA · On-site

$51.50 - $66.50/hr

JAVA Developer Location: Philadelphia PA (Locals or who can ready to attend F2F) Duration: 6-12 +months Top Three Skills: 1. Java 8 development experience 2. Experience writing Restful web services ...

Java & AWS Developer

Malvern, PA · On-site

$50 - $64.75/hr

Role Name - Java & AWS Developer EXPERIENCE_RANGE_IN_REQUIRED_SKILLS_ Java, Microservices, REST Services, Spring Boot, JavaScript, Junit, Type Script, HTML5, CSS3, JEST, NodeJs,Rest API, AWS, S3, EC2 ...

Java developer

Mount Laurel, NJ · On-site

$50.50 - $65.25/hr

Company Description Need permanent residence Phone: (847) 440 2436 Ext. 330 Qualifications Additional Information All your information will be kept confidential according to EEO guidelines.

Java Developer - Blue Bell, PA

Blue Bell, PA · On-site

$48.75 - $63/hr

ClifyX is a company in the healthcare domain, and they are seeking a Java Developer to participate in requirement gathering and support documentation. The role involves coding, design, and analysis ...

Showing results 41-60

Junior Java Developer information

See Pennsauken, NJ salary details

$60.5K

$106K

$159.8K

How much do junior java developer jobs pay per year?

As of Sep 14, 2026, the average yearly pay for junior java developer in Pennsauken, NJ is $105,998.00, according to ZipRecruiter salary data. Most workers in this role earn between $74,900.00 and $105,700.00 per year, depending on experience, location, and employer.

What is a junior Java developer?

Junior Java Developers are entry-level software engineers who specialize in building and maintaining applications using the Java programming language. They typically work under the supervision of more experienced developers and are responsible for writing code, debugging, and participating in code reviews. Their tasks may also include testing software, learning new frameworks, and assisting with the design and implementation of features. Junior Java Developers usually have foundational knowledge of Java and related technologies, and they are eager to develop their skills through hands-on experience.

What does a junior Java developer do?

Junior Java developers are entry-level programmers who are part of a team of coders and developers. They work on both front-end and back-end codes to build an application. Being a junior Java developer requires extensive knowledge of coding and the program language JavaScript to develop and troubleshoot products. As a junior Java developer, you run tests to pinpoint errors, migrate code and data, and ensure the program is integrated with other company developments.

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

A Junior Java Developer should have a solid understanding of Java programming, object-oriented principles, and basic software development concepts, often supported by a relevant degree or coding bootcamp. Familiarity with tools such as IntelliJ IDEA or Eclipse, version control systems like Git, and frameworks like Spring Boot is typically expected. Strong problem-solving abilities, attention to detail, and effective teamwork are important soft skills in this role. These competencies enable efficient code development, smooth collaboration, and the ability to quickly adapt to new technologies and project requirements.

What are some common challenges a junior Java developer might face during their first year, and how can they overcome them?

Junior Java Developers often encounter challenges such as understanding large codebases, adapting to agile development processes, and managing task priorities. To overcome these hurdles, it’s helpful to proactively seek mentorship from senior developers, regularly review documentation, and participate in code reviews. Effective communication with team members also accelerates learning and helps clarify requirements or technical uncertainties. Embracing continuous learning through online resources and hands-on projects will further strengthen your skills and confidence.

What is the difference between Junior Java Developer vs Java Developer?

AspectJunior Java DeveloperJava Developer
Required Experience0-2 years2+ years
CertificationsOptional, entry-level certificationsOptional, advanced certifications
Work EnvironmentSupportive, learning-focused teamsProject-driven, independent roles
ResponsibilitiesAssist in coding, bug fixing, learning frameworksDesign, develop, maintain Java applications

The main difference between a Junior Java Developer and a Java Developer lies in experience, responsibilities, and independence. Junior Java Developers are typically entry-level, focusing on learning and supporting tasks, while Java Developers have more experience and handle complex development projects independently.

How much do junior Java developers make?

Junior Java developers typically earn between $50,000 and $80,000 annually, depending on location, industry, and experience. Entry-level roles often require knowledge of Java, object-oriented programming, and development tools like Eclipse or IntelliJ IDEA.

Is a Junior Java Developer still in demand?

Junior Java Developers remain in demand due to the widespread use of Java in enterprise applications, web development, and Android app creation. Employers seek candidates with foundational Java skills, knowledge of frameworks like Spring, and familiarity with version control tools such as Git. Continuous learning and certifications can enhance job prospects in this field.

What cities near Pennsauken, NJ are hiring for Junior Java Developer jobs?

Cities near Pennsauken, NJ with the most Junior Java Developer job openings:

Infographic showing various Junior Java Developer job openings in Pennsauken, NJ as of September 2026, with employment types broken down into 80% Full Time, 12% Part Time, and 8% Contract. Highlights an 77% Physical, 5% Hybrid, and 18% Remote job distribution, with an average salary of $105,998 per year, or $51 per hour.

Java Developer for Machinery Control Systems

Philadelphia, PA

R&P Technologies, LLC
201 - 500 employees

$46.75 - $60.50/hr

Full-time

Medical, Retirement

Re-posted 2 days ago


Key responsibilities

  • Develop, test, install, and maintain Machinery Control Systems (MCS) and On-Board Training Software.

  • Perform Java code development, including migration from Java 8 to Java 17, and support debugging and problem resolution.

  • Support the software life cycle by documenting requirements, writing technical documentation, and providing technical support.


Job description

R&P is looking for a motivated individual who wants to join our team supporting the Naval Surface Warfare Center (NSWC) Philadelphia Division in Philadelphia, PA. We are a small-sized defense contractor providing Engineering, Logistics, Program Management and Technical Services to government clients. We are seeking a Software Engineer to support the development, maintenance, and delivery of Machinery Control Systems (MCS) and On-Board Training software for U.S. Navy ships. The selected candidate will be interfacing with U.S. Navy civilian software and systems engineers, support contractors, U.S. Navy ships force, OEMs, and engineering management. The selected candidate will contribute to all aspects of the software life cycle including, but not limited to, requirements definition, software development, documentation, testing, deployment, technical support, and maintenance. This job is for onsite work at the NSWCPD facilities in the Philadelphia Navy Yard.


  • Develop and maintain working knowledge of Machinery Control Systems (MCS) and On-Board Training Software.
  • Design, develop, test, install, and maintain MCS and Training software and supporting software products.
  • Perform Java code development and Java 8 to 17 migration.
  • Work with MATLAB, Simulink, Simulink Coder (Real-Time Workshop), Microsoft Visual Studio, and Git version control.
  • Identify and document software and system related problems.
  • Resolve software problems through debugging, research, and investigation.
  • Provide distance and onsite support of software problems.
  • Prepare and maintain new and/or existing software requirements.
  • Write, review, and maintain technical documentation such as user manuals, product specifications, and training materials.
  • Participate in special projects as required.

Mandatory:

  • At least 3 years of Java developer experience.
  • Bachelor's degree in Computer, Electrical or Electronics Engineering, Computer Science.
  • CompTIA Security+ certification.
  • DoD secret security clearance.
  • Ability to work daily in the office onsite at the Philadelphia Naval Yard.

Desired Skills and Experience:

  • Experience with Java 17-25 development.
  • Experience with Java 8 to Java 17 migration (including records, sealed classes, and enhanced switch).
  • Experience maintaining/refactoring large legacy Java codebases (300k+ LOC).
  • Knowledge of PLC I/O mapping, ladder logic behaviors, and Allen-Bradley ControlLogix/CompactLogix.
  • Familiar with SCADA systems like FactoryTalk View, Ignition, or Wonderware.
  • Ability to learn PIMCS framework (Platform Independent Machinery Controls System ecosystem in NSWCPD).
  • Experience delivering software under CMMI Level 3+ or equivalent.
  • Decipher, read and understand code metrics for test coverage from Sonarqube.
  • Fluent and able to navigate in a Linux Operating System.

Working Conditions:

The work is typically performed at client site locations in an office environment or Control System Test Labs. Additional work may be performed onboard U.S. Navy Ships (pier side and at sea), which requires proper safety precautions and ability to go up and down shipboard stairways (ladders); work may require some physical effort in the handling of light materials, boxes, or equipment. 


R&P Technologies provides equal opportunity for all persons and prohibits discrimination in employment because of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability (including pregnancy, childbirth or related medical conditions), veteran or marital status, or any other factor prohibited by law. This policy applies to all terms and conditions of employment, including, but not limited to, hiring, placement, promotion, termination, layoff, recall, transfer, leave, compensation, and training.

R&P maintains an Affirmative Action Plan to establish fair access to employment opportunities and to create a work community that is an accurate reflection of the qualified workforce. Due to security clearance requirements, U.S. citizenship is required for most positions


R&P offers a highly competitive compensation package that includes contributions towards health insurance, 401(k) matching, and other non-salary benefits. Exact salary will be commensurate with experience and qualifications.