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Junior Java Developer Intern Jobs in New Jersey (NOW HIRING)

J.P. Morgan

Lead Software Engineer - Java

Jersey City, NJ · On-site

  • Medical

  • Retirement

Mentor, groom, and guide junior team members, fostering their professional growth and development ... Strong understanding of CI/CD, DevOps tool chains, and a test-driven approach to agile delivery ...

Ekcel Technologies Inc

Java Lead

Jersey City, NJ · On-site

We are seeking a seasoned Java Lead Developer with extensive banking domain experience to lead the ... Review code, mentor junior team members, and promote adherence to development standards.

Aventine software

Java Spark Engineer

Berkeley Heights, NJ · On-site

$54 - $74/hr

... junior engineers; act as a technical escalation point • Partner with product, analytics, and ... Java development experience • 5+ years hands-on experience with Apache Spark in production ...

Samsung

Junior Web Developer

Ridgefield Park, NJ

Web application system maintenance Server side design and programming UI and Application Module ... Java, J2EE JSP/Servlet, Strong Spring 3.0 Framework(or 4.0), JDBC, Strong Oracle SQL Experience ...

Samsung

Junior Web Developer

Ridgefield Park, NJ · On-site

Responsibilities: • Web application system maintenance • Server side design and programming • ... Java, J2EE JSP/Servlet, Strong Spring 3.0 Framework(or 4.0), JDBC, Strong Oracle SQL • Experience ...

2T Consulting

Java Spark Engineer

Roseland, NJ · On-site

$55.75 - $76.50/hr

... junior engineers; act as a technical escalation point • Partner with product, analytics, and ... Java development experience • 5+ years hands-on experience with Apache Spark in production ...

2T Consulting

Java Spark Engineer

Plainfield, NJ · On-site

$53 - $72.75/hr

... junior engineers; act as a technical escalation point • Partner with product, analytics, and ... Java development experience • 5+ years hands-on experience with Apache Spark in production ...

2T Consulting

Java Spark Engineer

Elizabethport, NJ · On-site

$52.25 - $71.75/hr

... junior engineers; act as a technical escalation point • Partner with product, analytics, and ... Java development experience • 5+ years hands-on experience with Apache Spark in production ...

2T Consulting

Java Spark Engineer

Chatham, NJ · On-site

$56.75 - $78/hr

... junior engineers; act as a technical escalation point • Partner with product, analytics, and ... Java development experience • 5+ years hands-on experience with Apache Spark in production ...

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Junior Java Developer Intern information

What does a Junior Java Developer Intern do?

A Junior Java Developer Intern assists in the development, testing, and maintenance of Java-based applications under the supervision of senior developers. Their responsibilities typically include writing simple code, debugging software, participating in team meetings, and learning best practices in software development. The intern gains hands-on experience with Java technologies, tools, and frameworks while contributing to real-world projects. This role is designed to help interns build foundational programming skills and understand the software development lifecycle.

What types of projects and tasks can I expect to work on as a Junior Java Developer Intern?

As a Junior Java Developer Intern, you can expect to assist in developing, testing, and debugging Java applications under the guidance of senior team members. Your daily tasks may include writing code, fixing bugs, participating in code reviews, and collaborating with other developers and departments such as QA or DevOps. Interns often get exposure to real-world projects that contribute to the organization's products or services, providing valuable experience with tools like version control systems and agile methodologies. This hands-on involvement is designed to help you build both technical and teamwork skills in a professional setting.

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

To thrive as a Junior Java Developer Intern, you need a solid understanding of Java programming, basic knowledge of object-oriented design, and a relevant degree or coursework in computer science or software engineering. Familiarity with IDEs like Eclipse or IntelliJ IDEA, version control systems such as Git, and introductory experience with build tools like Maven is typical. Strong problem-solving, eagerness to learn, and effective communication skills help interns collaborate and adapt in a team environment. These skills and qualities are important because they enable rapid learning, effective contribution to projects, and smooth integration into development teams.

What is the difference between Junior Java Developer Intern vs Junior Java Developer?

AspectJunior Java Developer InternJunior Java Developer
Required CredentialsBasic understanding of Java, coursework, or related internship experienceProven Java skills, possibly some certifications or coursework completed
Work EnvironmentInternship programs, learning-focused, entry-level projectsFull-time role, more responsibility, involved in ongoing projects
Employer & Industry UsageInternship positions in tech companies, startups, or software firmsEntry-level full-time positions in similar industries
Search & Comparison IntentUnderstanding internship differences, entry-level opportunitiesCareer progression, job responsibilities, skill requirements

The main difference between a Junior Java Developer Intern and a Junior Java Developer lies in experience and responsibilities. Interns are typically students or recent graduates gaining practical experience, while Junior Developers are full-time employees with more responsibilities and ongoing projects. Internships serve as a stepping stone toward a full developer role, which requires more skills and commitment.

What are popular job titles related to Junior Java Developer Intern jobs in New Jersey?

For Junior Java Developer Intern jobs in New Jersey, the most frequently searched job titles are:

What job categories do people searching Junior Java Developer Intern jobs in New Jersey look for?

The top searched job categories for Junior Java Developer Intern jobs in New Jersey are:

What cities in New Jersey are hiring for Junior Java Developer Intern jobs?

Cities in New Jersey with the most Junior Java Developer Intern job openings:

Junior Java Developer Intern jobs near you
Infographic showing various Junior Java Developer Intern job openings in New Jersey as of August 2026, with employment types broken down into 84% Full Time, 3% Part Time, and 13% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Lead Software Engineer - Java

JPMorgan Chase & Co

Jersey City, NJ

Full-time

Medical, Retirement

Re-posted 5 days ago

JPMorgan Chase & Co. rating

8.0

Company rating: 8.0 out of 10

Based on 495 frontline employees who took The Breakroom Quiz

72nd of 171 rated banks

Job description

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.
As a Lead Software Engineer at JPMorgan Chase within the Asset Wealth Management team, you will participate in the development of our innovative multi-asset trading platform on AWS. This role demands a hands-on leader with deep expertise in streaming, non-blocking, reactive Java programming, and a strong background in microservices architecture, domain-driven design, and cloud technologies.
 
Job Responsibilities
  • Actively engage with and lead a team of technologists to develop and deploy applications to the highest standards, ensuring alignment with business and functional requirements.
  • Design and implement microservices in Java, utilizing streaming, non-blocking, and reactive programming techniques, while contributing directly to the codebase.
  • Drives team adoption of enterprise-authorized AI-assisted engineering practices within the work environment to improve code quality, delivery speed, and operational outcomes (e.g., AI-assisted code review/refactoring, test strategy acceleration, incident/root-cause analysis support), while establishing consistent validation standards (secure coding, peer review, automated testing) and promoting reuse of effective patterns across the team.
  • Applies knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve the value realized by automation.
  • Utilize technologies such as Kafka, IBM MQ, Kubernetes (K8s), Redis cache, MSK, and AWS to build scalable and efficient systems, providing both strategic direction and hands-on support.
  • Drive the adoption of domain-driven design principles and ensure the architecture supports the trading platform's multi-asset capabilities, while actively participating in architectural discussions.
  • Oversee and contribute to the development of technical documentation, including service APIs using Swagger, ensuring robust logging, auditability, security, and monitoring features.
  • Participate in API design sessions and guide the selection of design patterns for the team, while also contributing to the design process.
  • Lead and participate in code review sessions, providing sign-off and ensuring high maintainability through TDD/BDD approaches.
  • Demonstrate scalability of services using mock testing frameworks and other tools, actively engaging in testing and validation processes.
  • Mentor, groom, and guide junior team members, fostering their professional growth and development within the organization.
 
Required qualifications, capabilities and skills
  • 8+ years of experience as a software engineer, with a proven track record in building distributed architecture systems, especially those involving large data volumes and real-time distribution
  • Deep knowledge and expertise in Java programming, with a self-assessed proficiency of 8 out of 10 or higher, and a willingness to engage in hands-on coding.
  • Strong understanding of CI/CD, DevOps tool chains, and a test-driven approach to agile delivery, with hands-on experience in these areas.
  • Experience with middle-tier data caching solutions (e.g., Redis, Gemfire, Apache Ignite) and messaging-based solutions (e.g., Kafka, IBM MQ).
  • Knowledge of modern architectures based on microservices, REST APIs, databases, SQL, non-SQL stores, and event-based architecture.
  • Proven ability to mentor, groom, and guide junior team members, fostering a collaborative and growth-oriented environment.
  • Demonstrated experience leading effective use of enterprise-authorized AI-assisted software development tools within the work environment (e.g., for coding, code review, test acceleration, troubleshooting) with the ability to set team expectations for validating AI outputs for correctness, performance, and security
  • Strong understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency and security expectations; experience coaching senior engineers/leads on compliant usage patterns and controls.
 
Preferred qualifications, capabilities, and skills
  • Hands-on experience with Spring framework and AWS cloud services, actively applying these skills in development tasks.
  • Experience in trading systems and familiarity with FIX protocol is an added advantage.
  • Ability to solve complex and mission-critical problems, both internally and externally, with a hands-on approach.
  • A constant learner and early adopter of leading-edge technologies and methodologies, actively seeking opportunities to apply new knowledge.
 
 
JPMorganChase, one of the oldest financial institutions, offers innovative financial solutions to millions of consumers, small businesses and many of the world's most prominent corporate, institutional and government clients under the J.P. Morgan and Chase brands. Our history spans over 200 years and today we are a leader in investment banking, consumer and small business banking, commercial banking, financial transaction processing and asset management.

We offer a competitive total rewards package including base salary determined based on the role, experience, skill set and location. Those in eligible roles may receive commission-based pay and/or discretionary incentive compensation, paid in the form of cash and/or forfeitable equity, awarded in recognition of individual achievements and contributions. We also offer a range of benefits and programs to meet employee needs, based on eligibility. These benefits include comprehensive health care coverage, on-site health and wellness centers, a retirement savings plan, backup childcare, tuition reimbursement, mental health support, financial coaching and more. Additional details about total compensation and benefits will be provided during the hiring process. 

We recognize that our people are our strength and the diverse talents they bring to our global workforce are directly linked to our success. We are an equal opportunity employer and place a high value on diversity and inclusion at our company. We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. We also make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs. Visit our FAQs for more information about requesting an accommodation.

JPMorgan Chase & Co. is an Equal Opportunity Employer, including Disability/Veterans

J.P. Morgan Asset & Wealth Management delivers industry-leading investment management and private banking solutions. Asset Management provides individuals, advisors and institutions with strategies and expertise that span the full spectrum of asset classes through our global network of investment professionals. Wealth Management helps individuals, families and foundations take a more intentional approach to their wealth or finances to better define, focus and realize their goals.

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