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Senior Java Jobs in New Jersey (NOW HIRING)

Fiserv, Inc.

Senior Java Developer

Berkeley Heights, NJ · On-site

$97K - $164K/yr

Job Title Senior Java Developer About your role: Design, develop, and maintain backend Java applications and enterprise microservices that support scalable and secure business solutions. Partner with ...

Genesis10

Senior Java Developer

Jersey City, NJ · On-site

$58.26 - $66.26/hr

Genesis10 is currently seeking a Senior Java Developer for a contract position with a Global Financial Institution located in Jersey City, NJ. This is a 12+ month contract opportunity. In this role ...

Donato Technologies, Inc

Java Developer

Berkeley Heights, NJ · On-site

$53.25 - $69/hr

Title: Sr. Java Developer Location: Berkeley Heights, NJ (5 Days Onsite) * Strong Java and Micro services development experience * Previous work experience with Spring Boot framework * Strong ...

Lorhan Corporation

$127K - $166K/yr

Hello, I have an immediate opening for Sr Backend Developer at Whippany, NJ. Position: Senior ... More than 8 years of hand on experience in backend Java developer * More than 5 years of hand on ...

New

Citigroup, Inc.

AVP Senior Java Developer

Rutherford, NJ · On-site

$58.25 - $74.50/hr

Senior Java developer is responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall ...

Jobsbridge

Senior Java Developer

Newark, NJ

$59.75 - $76.25/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Requirements: Able to interpret business requirements and programming ...

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Senior Java information

See New Jersey salary details

$11

$63

$87

How much do senior java jobs pay per hour?

As of Aug 6, 2026, the average hourly pay for senior java in New Jersey is $63.78, according to ZipRecruiter salary data. Most workers in this role earn between $55.87 and $71.25 per hour, depending on experience, location, and employer.

What does a senior Java developer do?

A Senior Java Developer is responsible for designing, developing, and maintaining complex Java-based applications. They often lead development teams, make architectural decisions, and ensure code quality through best practices. Their role also includes mentoring junior developers, participating in code reviews, and collaborating with stakeholders to deliver robust software solutions. Senior Java Developers are expected to have extensive experience with Java frameworks, databases, and deployment processes.

What is the difference between Senior Java vs Java Developer?

AspectSenior JavaJava Developer
Required CredentialsBachelor's degree, extensive Java experience, possibly certifications like Oracle Certified ProfessionalBachelor's degree, Java knowledge, entry to mid-level certifications
Work EnvironmentTeam lead, project architect, involved in design and mentoringDevelopment team member, coding, testing, and implementation
Employer & Industry UsageTech companies, finance, healthcare, enterprise solutionsStartups, tech firms, software agencies, enterprise sectors

Senior Java professionals typically have more experience, leadership responsibilities, and advanced certifications compared to Java Developers. They often lead projects and mentor junior staff, while Java Developers focus on coding and implementation. Both roles are vital in software development, but the senior position involves greater strategic input and oversight.

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

To thrive as a Senior Java Developer, you need deep expertise in Java programming, object-oriented design, and a strong grasp of software development principles, typically backed by a computer science degree or relevant experience. Experience with tools like Spring Framework, Hibernate, Maven, Git, and proficiency in using integrated development environments (IDEs) such as IntelliJ IDEA or Eclipse is essential, and certifications like Oracle Certified Professional (OCP) can be beneficial. Outstanding problem-solving skills, effective communication, and the ability to mentor junior developers set top performers apart. These skills ensure the delivery of robust, maintainable code and foster high-performing teams capable of tackling complex projects.

How do senior Java developers typically collaborate with cross-functional teams on large-scale projects?

Senior Java Developers often work closely with product managers, QA engineers, UI/UX designers, and DevOps teams to ensure successful project delivery. They participate in architectural discussions, provide technical guidance, and help translate business requirements into scalable software solutions. Regular communication and agile ceremonies like sprint planning and code reviews are common, allowing them to align development efforts with overall business goals and quickly address challenges. This collaborative environment helps Senior Java Developers mentor junior team members and foster a culture of continuous improvement.
What are the most commonly searched types of Java jobs in New Jersey? The most popular types of Java jobs in New Jersey are:
What cities in New Jersey are hiring for Senior Java jobs? Cities in New Jersey with the most Senior Java job openings:
Senior Java jobs near you
Infographic showing various Senior Java job openings in New Jersey as of July 2026, with employment types broken down into 85% Full Time, 5% Part Time, 9% Contract, and 1% Nights. Highlights an 82% Physical, 5% Hybrid, and 13% Remote job distribution, with an average salary of $132,672 per year, or $63.8 per hour.

Senior Java Developer

Fiserv, Inc.

Berkeley Heights, NJ • On-site

$97K - $164K/yr

Full-time

Re-posted 5 days ago

Fiserv rating

7.7

Company rating: 7.7 out of 10

Based on 95 frontline employees who took The Breakroom Quiz

105th of 150 rated financial services

Job description

Calling all innovators - find your future at Fiserv.
We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv.
Job Title
Senior Java Developer
About your role:
Design, develop, and maintain backend Java applications and enterprise microservices that support scalable and secure business solutions. Partner with engineering, product, and DevOps teams to deliver reliable software using modern development practices and cloud-native technologies. This role matters by helping teams build high-quality services that improve performance, support growth, and meet business and technical requirements.
What you'll do:
  • Design, code, test, debug, and maintain Java applications and microservices using Java 17, Spring Boot, Spring Batch, Kafka, Kubernetes, and related technologies.
  • Collaborate with cross-functional teams to gather requirements, define technical solutions, and implement scalable and maintainable backend services.
  • Contribute to architecture discussions and support the design of new features, enhancements, and system improvements with a focus on performance, scalability, and reliability.
  • Build and enhance event-driven microservices and distributed messaging solutions using Apache Kafka for business-critical processing workflows.
  • Partner with DevOps teams to support build automation, deployment, monitoring, and continuous integration and continuous deployment (CI/CD) practices.
  • Create and maintain technical documentation including system designs, application programming interface (API) specifications, and implementation details.
  • Perform unit testing, integration testing, code reviews, and release support activities to improve software quality and delivery consistency.
  • Participate in Agile ceremonies and contribute ideas that improve engineering practices, team processes, and software quality.
  • Responsibilities listed are not intended to be all-inclusive and may be modified as necessary.

Experience you'll need to have:
  • 5+ years of experience designing, developing, and maintaining Java-based enterprise applications in production environments.
  • 5+ years of experience building backend services or microservices using Java, Spring Boot, Spring Batch, Spring Cloud Stream, or similar enterprise frameworks.
  • 5+ years of experience designing and developing RESTful application programming interfaces (APIs) with attention to security, scalability, and maintainability.
  • 5+ years of experience working with Apache Kafka or similar distributed messaging platforms in asynchronous or event-driven architectures.
  • 5+ years of experience working with containerization and orchestration technologies such as Docker and Kubernetes for application deployment, scaling, and troubleshooting.
  • Experience with relational and non-relational databases such as MySQL, MongoDB, or similar platforms, including data access and query optimization.
  • Experience using Git and modern continuous integration and continuous deployment (CI/CD) tools in Agile software delivery environments.
  • Bachelor's degree in computer science, software engineering, or a related field, or equivalent combination of education, related experience and/or military experience.

Experience that would be great to have:
  • Experience with distributed systems design and high-volume event processing.
  • Experience with cloud-native application deployment and observability practices.
  • Experience with Scrum or other Agile delivery frameworks.

Important info about this role:
  • You must currently possess valid and unrestricted U.S. work authorization to be considered for this role. Individuals with temporary visas including, but not limited to, F-1 (OPT, CPT, STEM), H-1B, H-2, or TN, or any candidate requiring sponsorship, now or in the future, will not be considered for this role.
  • We're better together. This role is fully on-site.
  • This is a full-time, direct-hire position, and no contract options for unsolicited agency submissions will be considered.

#LI-IH1
Salary Range
$97,500.00 - $164,400.00
These pay ranges apply to employees in New Jersey and New York. Pay ranges for employees in other states may differ.
It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.
This position is not eligible for an annual incentive opportunity and is also not eligible to earn commissions.
Thank you for considering employment with Fiserv. Please:
  • Apply using your legal name
  • Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).

Our commitment to Equal Opportunity:
Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.
If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact AskHR.US@fiserv.com. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv's Disability Accommodation Policy for additional information.
Note to agencies:
Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.
Warning about fake job posts:
Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.

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