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Senior Java Engineer Jobs in Trenton, NJ (NOW HIRING)

TMS

Full Stack Java Developer

Fort Washington, PA · On-site

$65 - $70/hr

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 ...

NJM Insurance Group

JAVA Developer, Senior

Trenton, NJ · On-site

$115K - $134K/yr

Mentor other developers. * Conduct code reviews and provide oversight of all team deliverables. * Ensure adherence to design and development best practices within the team. Required Qualifications ...

NJM Insurance Group

JAVA Developer, Senior

Trenton, NJ · On-site

$115K - $134K/yr

Mentor other developers. * Conduct code reviews and provide oversight of all team deliverables. * Ensure adherence to design and development best practices within the team. Required Qualifications ...

Fabergent

Java with Capital Markets

North Brunswick, NJ · On-site

$54 - $69.75/hr

Capital Markets Technology client is looking for a senior developer to join the Commodities Risk Services Technology team. Responsibilities of this role includes but not limited to design, develop ...

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All JobsJava Engineer JobsSenior Java Engineer JobsSenior Java Engineer Jobs in Trenton, NJ

Senior Java Engineer information

See Trenton, NJ salary details

$11

$63

$86

How much do senior java engineer jobs pay per hour?

As of Aug 12, 2026, the average hourly pay for senior java engineer in Trenton, NJ is $63.00, according to ZipRecruiter salary data. Most workers in this role earn between $55.19 and $70.38 per hour, depending on experience, location, and employer.

What are some common challenges senior Java engineers face when working on large-scale enterprise applications?

Senior Java Engineers often encounter challenges such as managing complex codebases, ensuring application scalability, and maintaining high performance under heavy loads. They are also responsible for implementing robust security practices and integrating new technologies without disrupting existing systems. Effective collaboration with cross-functional teams and mentoring junior developers are crucial aspects of the role, as these responsibilities help maintain code quality and project momentum.

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

AspectSenior Java EngineerJava Developer
Required CredentialsBachelor's in Computer Science, Java certifications (e.g., Oracle Certified Professional)Bachelor's in Computer Science or related field, Java certifications optional
Work EnvironmentDesigning, developing, and maintaining complex Java applications, often in team leadership rolesDeveloping Java applications, focusing on coding and implementation
Industry UsageUsed across finance, tech, and enterprise sectors for large-scale projectsCommonly employed in software development firms, startups, and tech companies

While both roles involve Java programming, Senior Java Engineers typically handle complex system design, mentorship, and project leadership, whereas Java Developers focus more on coding and implementing features. The senior role often requires more experience and certifications, with a broader scope of responsibilities.

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

To thrive as a Senior Java Engineer, you need advanced proficiency in Java programming, strong knowledge of software design patterns, and a degree in computer science or related field. Experience with frameworks like Spring, Hibernate, build tools such as Maven or Gradle, and familiarity with cloud platforms and CI/CD systems are typically required. Excellent problem-solving abilities, leadership, and effective communication help you guide teams and collaborate with stakeholders. These skills are crucial for delivering robust, scalable software solutions and mentoring junior engineers in complex development environments.

What is a senior Java engineer?

Senior Java Engineers are experienced software developers who specialize in designing, developing, and maintaining applications using the Java programming language. They often lead development teams, architect solutions, and ensure that software meets both technical and business requirements. Their responsibilities also include code reviews, mentoring junior developers, and optimizing application performance. Typically, they have several years of experience and a deep understanding of Java frameworks and best practices.
What cities near Trenton, NJ are hiring for Senior Java Engineer jobs? Cities near Trenton, NJ with the most Senior Java Engineer job openings:
Senior Java Engineer jobs near you
Infographic showing various Senior Java Engineer job openings in Trenton, NJ as of August 2026, with employment types broken down into 83% Full Time, 12% Part Time, and 5% Contract. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution, with an average salary of $131,042 per year, or $63 per hour.

Java Full Stack Developer

First Soft Solutions

Monmouth Junction, NJ • Remote

$53.75 - $69.25/hr

Contractor

Posted 28 days ago

Job description

Java Full Stack Developer

First Soft Solutions is seeking experienced professionals to support enterprise digital transformation initiatives for Fortune 500 companies, government agencies, and technology organizations. The ideal candidate will possess strong technical expertise, excellent communication skills, and the ability to deliver high-quality solutions in agile environments.

Key Responsibilities
  • Design and deliver enterprise solutions.
  • Collaborate with cross-functional teams.
  • Participate in Agile ceremonies.
  • Troubleshoot and optimize applications.
Required Skills
  • Java
  • Spring Boot
  • React/Angular
  • Microservices
Qualifications

Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience). 5+ years of relevant experience (senior roles may require more). Strong verbal and written communication skills.

About First Soft Solutions

First Soft Solutions LLC is a technology consulting and staffing company delivering AI, cloud, cybersecurity, data engineering, software development, and digital transformation solutions to commercial and public sector clients across the United States.

First Soft Solutions logo

About First Soft Solutions

Sourced by ZipRecruiter

First Soft Solutions custom application Development and Maintenance Services are designed to enable you to lower the total cost of ownership and the required quality for your application. While all application Development Outsourcing is Technically custom, The difference is that packaged applications were designed with a general set of features to be used by a broad range of users. Custom application development is capable of producing practically any feature you may desire for your site. Time and money are virtually the only limiting factors. Our goal is to provide Clients with the Solution that fits their specific and unique needs while giving them the knowledge they need to operate and maintain the New Systems and Software. Our allegiance is to the best solution for our Clients. Our experience and knowledgeable consultants are ready to go above and beyond expectations to assist you in obtaining your goals. We can also provides expert project management throughout the entire project life cycle.

Industry

It services

Company size

11 - 50 Employees

Headquarters location

East Brunswick, NJ, US

Year founded

2006

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