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

Stem Xpert

Sr Java Developer

Trenton, NJ · On-site

$57.50 - $73.25/hr

The selected candidate must demonstrate exceptional JAVA programming skills, both on the submitted resume and also during the interview conducted at OIT. The selected candidate must possess prior ...

Sarian, Inc.

.NET+ Java Developer

Pennington, NJ · On-site

$51.50 - $66.50/hr

JD: JAVA * Web Application development with Spring Frameworks * Core Java, JEE * REST API ... Fiddler, Firebug, Poster, IE Developer Tools • Net * Net Framework 4.X, C#, ASP.Net, ASP.NET MVC ...

HSSSoft

JAVA EXT JS

Edison, NJ · On-site

$52.75 - $68.25/hr

Company Description HSS SOFT is an Equal Employment Opportunity Employer we need java ext js full time with our client Qualifications java developer with EXT JS Additional Information All your ...

Collabera

Java Developer

Philadelphia, PA · On-site

$51.50 - $66.50/hr

Experience is expected in a variety of back- and front-end enterprise Java technologies - with a heavy emphasis in the early phase of the engagement on the User Interface development that requires ...

Goli Tech

Senior Java Developer

Edison, NJ · On-site

$59.25 - $75.50/hr

* 4-7 years in backend and fullstack engineering with proficiency in Java development * Vertx framework is a plus * Experience in NodeJS Golang gRPC is a plus. * Strong expertise in microservices ...

TEKsystems

Senior Java Developer

Pennington, NJ · Hybrid

$70 - $75/hr

Description Position Summary We are seeking an experienced Java Architect / Senior Java Developer to lead design and development efforts for the Environmental & Social Business Advisory Portal. This ...

New

Triunity Software

Java developer

Princeton, NJ · On-site

$70K - $100K/yr

Minimum 4 years' of experience with Java 7/8, J2EE, Eclipse or similar tool, Spring Boot, Spring ... Object oriented analysis, design and programming skills * Experience with a recognized software ...

Noblis

JAVA Developer with Security Clearance

Philadelphia, PA · On-site

$51.50 - $66.50/hr

Responsibilities Noblis MSD is seeking a well-rounded JAVA Software Developer for the development and integration of PIMCS technology for onboard trainers. This is an onsite position in Philadelphia ...

HSSSoft

Sr. Java developer with GWT

Edison, NJ

$59.25 - $75.50/hr

Company Description Title: Sr. Java developer with GWT Location: Edison, NJ, United States Responsibilities: To design and develop applications based on Java/J2EE components. Design, develop ...

Sonsoft Inc

Java Developer

Pennington, NJ

$51.50 - $66.50/hr

At least 4 years of hands-on Java experience, including analysis, design and testing. * At least 4 years of experience using JPA (Hibernate or some other implementation). * At least 4 years of ...

Sonsoft Inc

Java Developer

Pennington, NJ

$51.50 - $66.50/hr

At least 4 years of hands-on Java experience, including analysis, design and testing. * At least 4 years of experience using JPA (Hibernate or some other implementation). * At least 4 years of ...

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Junior Java Developer information

See Trenton, NJ salary details

$61.2K

$107.1K

$161.4K

How much do junior java developer jobs pay per year?

As of Jul 8, 2026, the average yearly pay for junior java developer in Trenton, NJ is $107,119.00, according to ZipRecruiter salary data. Most workers in this role earn between $75,700.00 and $106,800.00 per year, depending on experience, location, and employer.

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.

Is Java still useful in 2026?

Java remains a widely used programming language for developing enterprise applications, Android apps, and backend systems in 2026. Junior Java Developers can benefit from its stability, extensive libraries, and strong community support, making it a valuable skill in the software industry. Knowledge of frameworks like Spring and tools such as Maven or Gradle enhances job prospects.

What are Junior Java Developers?

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.

Can I learn Java in 3 months?

Junior Java developers can acquire foundational skills in Java within three months with consistent study, practice, and hands-on projects. However, mastering advanced concepts, frameworks, and real-world application typically requires longer experience and ongoing learning.

Which pays more, C++ or Java?

For a Junior Java Developer, salaries for C++ and Java roles can vary based on industry, location, and experience, but generally, C++ positions tend to offer higher starting salaries due to its use in high-performance applications like gaming and finance. However, Java remains widely used in enterprise environments with competitive pay. Both skills are valuable, and salary differences may depend on specific job requirements and demand in the job market.

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 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 are the key skills and qualifications needed to thrive as a Junior Java Developer, and why are they important?

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.

Will AI replace Java devs?

AI is unlikely to fully replace Java developers, as they require problem-solving, design, and understanding of complex systems that AI cannot fully replicate. Instead, AI tools can assist Java developers by automating repetitive tasks and improving productivity, making their roles more efficient. Continuous learning and adapting to new technologies remain important for Java developers to stay relevant in the evolving tech landscape.
More about Junior Java Developer jobs
What are the most commonly searched types of Java Developer jobs in Trenton, NJ? The most popular types of Java Developer jobs in Trenton, NJ are:
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What job categories do people searching Junior Java Developer jobs in Trenton, NJ look for? The top searched job categories for Junior Java Developer jobs in Trenton, NJ are:
What cities near Trenton, NJ are hiring for Junior Java Developer jobs? Cities near Trenton, NJ with the most Junior Java Developer job openings:
Junior Java Developer jobs near you
Infographic showing various Junior Java Developer job openings in Trenton, NJ as of July 2026, with employment types broken down into 83% Full Time, 3% Part Time, and 14% Contract. Highlights an 82% In-person, and 18% Remote job distribution, with an average salary of $107,119 per year, or $51.5 per hour.

JAVA Developer - Philadelphia, PA

National Guard Employment Network

Philadelphia, PA • On-site

$75K - $100K/yr

Full-time

Re-posted 7 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.
This position is on-site at the Philadelphia Naval Yard.
Responsibilities
Noblis MSD is seeking a well-rounded JAVA Software Developer for the development and integration of PIMCS technology for onboard trainers. This is an onsite position in Philadelphia, PA at the Naval Yard.
USD $78,900.00 - USD $123,300.00 /Yr.
Noblis MSD's mission is to support the Naval Sea Systems Command (NAVSEA) and, Naval Surface Warfare Center (NSWCPD) and their missions to enable research, development, test and evaluation, acquisition, engineering, systems integration, in-service and fleet engineering with cybersecurity, comprehensive logistics, and life-cycle savings.
Certificates/Security Clearances/Other
Desired Qualifications
Experience containerizing large Java monoliths for Docker or RHEL 8/9
Experience with Java 17 to Java 25 migration (including records, sealed classes, and enhanced switch)
Knowledge of JGroups for distributed clustering in legacy Java
Leading or mentoring development teams through modernization efforts
Collaborating with cybersecurity, systems engineering, and testing teams
Participating in IV&V and FQT
Writing clear software design documents, ICDs, and release notes
Desired certifications: Linux or OS certification, CompTIA Security+, CISSP, Oracle Certified Professional: Java SE 17 Developer (OCPJP 17)
Must have good communication skills including communication with and with people with varying technical knowledge and various levels of management
Additional Qualifications/Responsibilities
Responsibilities:
Develop software requirements for Machinery Control Systems (MCS) based on the Naval Combatant Design Specification (NCDS), Design Practice Criteria (DPC) manuals, DoD and NAVSEA guidance, marine specifications, and commercial specifications as applicable.
Develop software integration designs for networking, supervisory control systems, and other test tools/systems developed inhouse.
Develop, maintain, configure, and manage software and hardware installation procedures, instructions, notices and Standard Operating Procedures.
Provide engineering services that include development and maintenance in support of hardware and software.
Analyze & decipherall automation testing pipelines and scripts from the Platform Independent Machinery Controls System (PIMCS) ecosystem in NSWCPD
Analyze & decipher all Jenkins pipelines.
Read, develop and decipher Jenkins continuous improvement and continuous deployment (CI/CD) pipelines.
Provide software lifecycle support following the NSWCPD Systems Engineering Process (SEP) with applicable Capability Maturity Model Integrated (CMMI) and Institute of Electrical and Electronics Engineers (IEEE) standards and specifications.
Required Qualifications
Bachelor's Degree in Computer, Electrical or Electronics Engineering, Computer Science or relevant STEM degree.
3 years of experience with Java programming.
Must be a US Citizen
Must have an Active Secret Security Clearance, or the ability to obtain one. Active clearance preferred.
Proficient in modular monolith architecture, understanding JPMS, classloader isolation, and dependency injection
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

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