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Fullstack Sr Java Developer Jobs in Sparta, NJ (NOW HIRING)

Goldenpick Technologies

Java Backend Engineer

Whippany, NJ · On-site

$50.75 - $66/hr

Virtual * Java backend development experience * Experience in Kafka, including Redis cluster ... Knowledge of microservices architecture. * hands‑on senior engineer, working directly with ...

Judge Group, Inc.

Back-end Developer - V

Bedminster, NJ

$122.90K - $159.70K/yr

Our client is currently seeking a Back-end Developer - V Senior Back-end Developer (Java) Contract!W2 This job will have the following responsibilities: * We are seeking a highly skilled Senior ...

Sonsoft Inc

Java, Angular JS

Far Hills, NJ

$52 - $67.25/hr

... 3.0+ and JAVA. * At least 2 years of experience in onsite - offshore delivery model ... Should be able to liaise with senior level client managers during the entire project * Experience ...

Okaya Corp.

Senior Developer (Quarkus)

Warren, NJ · On-site

$56.25 - $74.50/hr

Seeking an experienced Senior Quarkus Developer who can take a hands-on lead in building high ... Design, develop, and enhance microservices using Quarkus and modern Java. * Build scalable ...

AditiStaffing

Sr Endeca Developer

Warren, NJ

$56.50 - $74.75/hr

... Java) Experience in Endeca Content Acquisition Framework Experience in Endeca SEO / SEM Module highly desired / PLUS Experience in Endeca Content Assembler is a PLUS ATG Mid-Sr Developer / Lead Hands ...

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Fullstack Sr Java Developer information

See Sparta, NJ salary details

$11

$66

$90

How much do fullstack sr java developer jobs pay per hour?

As of May 30, 2026, the average hourly pay for fullstack sr java developer in Sparta, NJ is $66.09, according to ZipRecruiter salary data. Most workers in this role earn between $57.88 and $73.85 per hour, depending on experience, location, and employer.

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

To thrive as a Fullstack Sr Java Developer, you need deep expertise in Java, front-end frameworks (like React or Angular), and experience with databases, paired with a relevant computer science degree or equivalent experience. Familiarity with tools such as Spring Boot, RESTful APIs, version control systems (like Git), and cloud platforms is typically required, along with certifications like Oracle Certified Professional Java Programmer (OCPJP) being advantageous. Strong problem-solving, communication, and leadership skills help you collaborate effectively and drive complex projects to completion. These skills and qualities are crucial for building scalable, maintainable applications and ensuring seamless integration across the tech stack.

What are some common challenges Fullstack Sr Java Developers face when working on cross-functional teams?

Fullstack Sr Java Developers often collaborate with both front-end and back-end developers, QA engineers, and product managers. A common challenge is ensuring seamless integration between diverse technologies and frameworks used across the stack. Balancing priorities between rapid feature development and maintaining code quality or technical debt can also be demanding. Effective communication and a strong understanding of both client-side and server-side requirements are essential for overcoming these obstacles and delivering robust, scalable solutions.

What are Fullstack Sr Java Developers?

Fullstack Sr Java Developers are experienced software engineers who specialize in building both the front-end (client-side) and back-end (server-side) of web applications using Java and related technologies. They possess advanced skills in Java frameworks like Spring Boot for backend development, as well as expertise in frontend technologies such as JavaScript, HTML, and CSS. These professionals are responsible for designing, developing, testing, and maintaining comprehensive web solutions that are scalable and efficient. Fullstack Sr Java Developers often lead development teams, contribute to architectural decisions, and ensure best practices are followed throughout the software development lifecycle.

What is the difference between Fullstack Sr Java Developer vs Backend Java Developer?

AspectFullstack Sr Java DeveloperBackend Java Developer
Required SkillsJava, JavaScript, HTML, CSS, frameworks like Spring and AngularJava, Spring, Hibernate, database management
Work EnvironmentDevelops both client-side and server-side applicationsFocuses on server-side, APIs, and database integration
Industry UsageUsed in startups, tech companies, and full-service development teamsCommon in enterprise, financial, and backend-focused roles

The main difference between a Fullstack Sr Java Developer and a Backend Java Developer lies in their scope of work. Fullstack developers handle both front-end and back-end development, requiring skills in Java and front-end technologies. Backend Java Developers focus solely on server-side logic, databases, and APIs. Your choice depends on whether you prefer working across the entire application stack or specializing in backend systems.

What cities near Sparta, NJ are hiring for Fullstack Sr Java Developer jobs? Cities near Sparta, NJ with the most Fullstack Sr Java Developer job openings:
Fullstack Sr Java Developer jobs near you

Java Backend Engineer

Goldenpick Technologies

Whippany, NJ • On-site

$50.75 - $66/hr

Contractor

Posted 10 days ago

Job description

Location: Whippany , NJ (Hybrid)
Interview Mode: Virtual 
 
 
Job Description:
  • Java backend development experience
  • Experience in Kafka, including Redis cluster
  • Experience in a strong messaging background
  • Knowledge of microservices architecture.
  • hands‑on senior engineer, working directly with developers on the design and implementation of modernization initiatives.
  • Lead containerization and cloud onboarding of services. 
  • Drive adoption of GitLab CI/CD, M1 pipelines, and release automation.
  • Champion modern testing practices
  • Drive Kafka adoption for event-driven design standards