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Intern Java Back End Developer Jobs in Newark, NJ

FreshDirect

Sr. Java Backend Developer

Woodbridge, NJ · On-site

$130K - $155K/yr

What You'll Do As a Senior Backend Developer (Java) , you'll help design, develop, and scale backend systems that power FreshDirect's e-commerce and logistics platforms. You'll collaborate with cross ...

FreshDirect

Sr. Java Backend Developer

Woodbridge, NJ · On-site

$130K - $155K/yr

What You'll Do As a Senior Backend Developer (Java) , you'll help design, develop, and scale backend systems that power FreshDirect's e-commerce and logistics platforms. You'll collaborate with cross ...

CrackaJack Digital Solutions LLC

Java Developer

New York, NY · On-site

$55.75 - $72.25/hr

Java Backend Engineer Experience: 8+ Years Employment Type: Contract Location: NY We are seeking an experienced Java Backend Engineer with strong expertise in building scalable, high-performance ...

Monitise

Java Backend Engineer

Berkeley Heights, NJ · On-site

$110K - $186K/yr

Job Title Java Backend Engineer About your role: As a Java Backend Engineer you will code daily, own technical delivery end to end, and raise the bar for the team through strong code reviews ...

Grinteq

Java Liferay Developer

Manhattan, NY · On-site

$40/hr

Position We are looking for an Experienced Java Back-End Developer to join our team. Responsibilities and duties * Quickly gain an up-to-date and comprehensive understanding of the code base and ...

Fiserv, Inc.

Java Backend Engineer

Berkeley Heights, NJ · On-site

$110K - $186K/yr

Job Title Java Backend Engineer About your role: As a Java Backend Engineer you will code daily, own technical delivery end to end, and raise the bar for the team through strong code reviews ...

Esprow

Senior/Lead Java Back-End Developer

Manhattan, NY · On-site +1

Position Summary We are looking for a talented Java back-end senior or lead developer with extensive expertise working on web application back-ends using the Spring Framework. You will be responsible ...

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All JobsIntern Java Back End Developer JobsIntern Java Back End Developer Jobs in Newark, NJ

Intern Java Back End Developer information

See Newark, NJ salary details

$12

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How much do intern java back end developer jobs pay per hour?

As of Jul 13, 2026, the average hourly pay for intern java back end developer in Newark, NJ is $23.94, according to ZipRecruiter salary data. Most workers in this role earn between $19.38 and $25.38 per hour, depending on experience, location, and employer.

What is the difference between Intern Java Back End Developer vs Intern Front End Developer?

AspectIntern Java Back End DeveloperIntern Front End Developer
Required SkillsJava, Spring, SQL, REST APIsHTML, CSS, JavaScript, React or Angular
Work EnvironmentServer-side development, database integrationClient-side interface, UI/UX design
Common Industry UsageBackend systems, enterprise applicationsWebsites, mobile app interfaces

Intern Java Back End Developers focus on server-side logic, database management, and API development, while Intern Front End Developers work on the visual and interactive aspects of websites and applications. Both roles often require programming skills and are used in web development environments, but they specialize in different parts of the software stack.

What are the key skills and qualifications needed to thrive as an Intern Java Back End Developer, and why are they important?

To thrive as an Intern Java Back End Developer, you need a solid understanding of Java, object-oriented programming, and database fundamentals, often backed by coursework in computer science or related fields. Familiarity with development tools such as Git, IDEs like IntelliJ or Eclipse, and frameworks like Spring Boot is commonly expected. Strong problem-solving abilities, eagerness to learn, and effective communication skills help you collaborate with team members and adapt quickly. These skills and qualities are crucial for building reliable server-side applications and integrating effectively into a professional development environment.

What types of projects and responsibilities can an Intern Java Back End Developer expect during their internship?

As an Intern Java Back End Developer, you can typically expect to work on tasks such as writing and testing server-side code, assisting with database integration, and supporting the development of RESTful APIs. You'll likely collaborate closely with senior developers and other interns during code reviews, debugging sessions, and team meetings. Interns may also be assigned to real-world projects where they can contribute to feature enhancements or bug fixes under supervision, providing valuable hands-on experience in a collaborative, agile environment.

What does an Intern Java Back End Developer do?

An Intern Java Back End Developer assists in designing, developing, and maintaining the server-side logic of web applications using the Java programming language. They typically work under the guidance of senior developers to write clean, efficient code, troubleshoot bugs, and learn about frameworks like Spring Boot or Hibernate. Interns may also participate in code reviews, testing, and collaborating with front-end developers to integrate user-facing elements with server-side logic. This role helps interns gain hands-on experience in building scalable and secure back-end systems.
What cities near Newark, NJ are hiring for Intern Java Back End Developer jobs? Cities near Newark, NJ with the most Intern Java Back End Developer job openings:
Intern Java Back End Developer jobs near you
Infographic showing various Intern Java Back End Developer job openings in Newark, NJ as of July 2026, with employment types broken down into 7% Internship, 20% Full Time, and 73% Contract. Highlights an 93% In-person, and 7% Remote job distribution, with an average salary of $49,798 per year, or $23.9 per hour.

Senior Java Backend Developer

MphasiS Corporation USA

Berkeley Heights, NJ • On-site

$125K - $163K/yr

Other

Posted 21 days ago

Job description

Job Description:

We are seeking a Java Backend Resource having 8+ years of professional experience in backend application development, cloud engineering, and enterprise system integration with strong expertise in building, deploying, and supporting APIdriven applications. The candidate must have deep handson experience with Java Backend, K8 Micro Services, Redis, Memcache, Cloud services, and CI/CD pipelines, along with the ability to design scalable, secure, and resilient cloud solutions.

This role requires close collaboration with crossfunctional teams, adherence to DevOps and Agile practices, and ownership of service quality and delivery.

Key Responsibilities

  • Microservices Development: Design, develop, and maintain high-throughput backend services and RESTful / event-driven APIs (Kafka) using Java 17+ and Spring Boot.
  • Cloud-Native Deployment: Deploy and manage applications in Kubernetes (K8s) environments, ensuring scalability and high availability.
  • Caching & Optimization: Implement caching strategies using Redis or Memcached to minimize database load and optimize performance.
  • Event-Driven Systems: Work with messaging systems (e.g., Kafka) to create asynchronous, event-driven architectures.
  • Database Management: Maintain database schemas and write optimized queries for SQL (PostgreSQL, MySQL) and NoSQL (Cassandra, MongoDB) databases.
  • CI/CD & DevOps: Collaborate on CI/CD pipelines (ArgoCD, Jenkins, Artifactory, DevSecOps) and monitor services using observability tools

Mandatory Technical Skills & Competencies

  • Functional Domain: Good understanding of Core Domain Services areas like Real-time Transaction Processing, Customer and Account Management, AML, KYC, GDPR, CCPA, Payment processing, Channel Banking, General Ledger
  • Language: Expertise in Java and Spring Boot framework.
  • Architecture: Strong experience building, testing, and troubleshooting Microservices.
  • Infrastructure: Hands-on experience with Docker and Kubernetes (K8s), Containerized application deployment concepts, Configuration, scaling, and environment management awareness
  • Caching Technologies: Experience managing data storage/caching with Redis or Memcached.
  • Database: Proficient in SQL and NoSQL database design.
  • Tooling: Familiarity with Git, Maven/Gradle, and CI/CD tools like (ArgoCD, Jenkins, Artifactory, DevSecOps), Source control, branching strategies, merge requests, CI/CD pipeline configuration and automated deployments, Environment-based deployments and rollback strategies
  • Experience with AWS, Azure, or Google Cloud Platform services.
  • Knowledge of monitoring tools such as Prometheus, Grafana, or ELK stack.
  • Understanding of distributed tracing and logging.
  • Cloud concepts like fundamentals, App Configuration / App Settings, Key Vault, Cache, Service Bus (queues/topics), Event driven architecture, Blob Storage, cloud security, scalability, and resiliency patterns
  • Microservice Development
    • Microservice design and implementation
    • Middleware, filters, exception handling, and logging
    • Authentication and authorization (JWT/OAuth concepts)
    • Performance optimization and secure coding practices
  • Agile and Collaboration Tools: Sprint planning, work item tracking, and agile delivery, Technical documentation and knowledge sharing

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