1

Java Programming Internship Jobs in Plainfield, NJ

Software Developer Intern

Iselin, NJ · On-site

$19.50 - $25.75/hr

... with programming languages such as Python, Java, or JavaScript. · Basic knowledge of version ... Internships last between a few months to years. What Makes a Good Software Developer Intern: · ...

Quantitative Software Developer Intern

Manhattan, NY · On-site

$21.25 - $27.75/hr

We are seeking a small number of highly talented interns to assist in the development, optimization ... Significant experience in Python, C++, C, or Java * Serious interest in systems programming (e.g.

Quantitative Software Developer Intern

New York, NY · On-site

$21 - $27.50/hr

We are seeking a small number of highly talented interns to assist in the development, optimization ... Significant experience in Python, C++, C, or Java * Serious interest in systems programming (e.g.

next page

Showing results 1-20

Java Programming Internship information

See Plainfield, NJ salary details

$16

$58

$79

How much do java programming internship jobs pay per hour?

As of May 28, 2026, the average hourly pay for java programming internship in Plainfield, NJ is $58.16, according to ZipRecruiter salary data. Most workers in this role earn between $50.29 and $65.10 per hour, depending on experience, location, and employer.

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

To thrive as a Java Programming Intern, you need a solid understanding of Java fundamentals, object-oriented programming concepts, and basic software development principles, ideally supported by coursework or personal projects. Familiarity with tools like Eclipse or IntelliJ IDEA, version control systems such as Git, and build tools like Maven is typically expected. Strong problem-solving skills, eagerness to learn, and effective teamwork and communication abilities help interns stand out. These skills and qualities are crucial for contributing effectively to projects, adapting to real-world development environments, and growing as a software professional.

What types of projects can I expect to work on during a Java Programming Internship?

During a Java Programming Internship, you will likely contribute to a variety of projects such as developing web applications, automating business processes, or assisting with testing and debugging existing Java code. Interns often work under the guidance of senior developers, participating in code reviews and collaborating with cross-functional teams like QA and UI/UX. These projects are designed to help you apply classroom knowledge to real-world challenges, build your coding portfolio, and develop teamwork and communication skills essential for a career in software development.

What is a Java Programming Internship?

A Java Programming Internship is a temporary position designed for students or recent graduates to gain practical experience in software development using the Java programming language. Interns typically work under the supervision of experienced developers, assisting with coding, debugging, testing, and maintaining Java applications. This internship provides hands-on exposure to real-world projects and development tools, helping interns build their technical skills and understanding of professional software engineering practices. Successful completion of a Java programming internship can enhance a candidate's resume and improve their prospects for future employment in software development roles.

What is the difference between Java Programming Internship vs Java Developer?

AspectJava Programming InternshipJava Developer
Required CredentialsTypically pursuing or recent graduate in Computer Science or related fieldBachelor's degree in Computer Science or related, with experience
Work EnvironmentEntry-level, training-focused, often in tech companies or software firmsFull-time professional role, involved in designing, coding, and maintaining Java applications
Employer & Industry UsageInternships offered by tech companies, startups, and software firmsFull-time employment in similar industries, including finance, tech, and enterprise software

In summary, a Java Programming Internship is an entry-level, training-focused position for students or recent graduates, while a Java Developer is a full-time professional role requiring more experience and responsibility. Internships serve as a stepping stone into a Java development career, providing practical skills and industry exposure.

What are popular job titles related to Java Programming Internship jobs in Plainfield, NJ? For Java Programming Internship jobs in Plainfield, NJ, the most frequently searched job titles are:
What job categories do people searching Java Programming Internship jobs in Plainfield, NJ look for? The top searched job categories for Java Programming Internship jobs in Plainfield, NJ are:
What cities near Plainfield, NJ are hiring for Java Programming Internship jobs? Cities near Plainfield, NJ with the most Java Programming Internship job openings:

Lead Java Trading System Engineer

LSEG (London Stock Exchange Group)

Manhattan, NY • On-site

$113.90K - $189.90K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

This job post has expired 1 day ago. Applications are no longer accepted.


Job description

LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a commitment to excellence in delivering the services our customers expect from us.

LSEG Data & Analytics team is seeking a highly technical, hands-on Java developer. Our group is focused on bringing a new level of efficiency, transparency and openness to the trading process by building a collaborative community of investors, brokers, technology firms and content providers.

Through our modular, end-to-end trade management platform, users can: execute everything from simple single stock trades to complex strategies across markets and time zones and manage their risk throughout the trade lifecycle; access our growing network of execution brokers to route Equities, Futures or Options orders globally, as well as dozens of integrated prime and clearing brokers through our growing suite of middle office tools; and collaborate with our broker and vendor partners, who are able to efficiently plug into our platform to reach our community.

This role involves maintenance of existing backend order management applications, it also presents a unique opportunity to be a part of our vision to build the next-gen trading platform that will complement the existing suite of trading products.

Role responsibilities and key accountabilities:

  • Demonstrates good knowledge of technologies and/or SME knowledge of a technology, collaborating with others on design, development and implementation.

  • Advances tools and applications by producing expert code and producing the right solutions needed.

  • Handles own workload and promotes an inclusive and open culture.

  • Design, develop, and optimize software solutions using modern technologies.

  • Collaborate with product teams and architects to deliver scalable and reliable software.

  • Play a pivotal role in the product development life cycle, ensuring that software solutions are robust and scalable.

  • Engage with cross-functional teams, central technology functions, and wider stakeholders to ensure software design goals are met.

  • Ensure alignment of software solutions with LSEG's technology and business goals.

  • Maintain up-to-date expert knowledge of relevant technologies and trends.

  • Communicates complex / technical information clearly and concisely in an audience appropriate format.

  • Continues to develop technology and industry expertise through certifications, professional qualifications and networking events.

Essential skills

  • Financial industry experience building buy or sell side trading systems.

  • Strong understanding of system architecture and design.

  • Strong Java fundamentals (JVM, multithreading, collections, I/O, etc).

  • Strong development experience in Java technology stack along with API development, Docker and Kubernetes.

  • Strong technical experience on writing clean code, unit tests, code reviewing and refactoring.

  • Good knowledge of the following software engineering principles: SOLID, DRY, Law of Demeter.

  • Keen understanding of the challenges in low-latency development and practical techniques for addressing them.

  • Experience with distributed version control systems (Git) and build automation tools (Gradle, Maven).

  • Experience with Linux / Unix operating systems.

  • Experience with RDBMS (e.g. PostgreSQL).

  • Familiar with Agile methodology and its implementation.

  • Over 5 years software engineering experience as an individual contributor.

Other desirable skills

  • Practical knowledge / experience with TDD (test driven development) and CI/CD (continuous integration / continuous delivery) practices.

  • Experience with Spring & Spring Boot, Redis and Apache Kafka.

  • Familiarity with cloud platforms (ideally Microsoft Azure).

  • Deliver service excellence on-time, on-scope and on-budget.

  • Strong verbal and written communication skills.

  • Ability and interest in working in a dynamic, focused, upbeat and constantly evolving group.

  • Ability to work in a fast-paced environment.

  • Critical and creative thinker; able to think "out of the box". Problem-solving focused.

Educational background

  • BS/MS in computer science or equivalent software engineering qualification.

Career Stage:

Senior Associate

Compensation/Benefits Information:

LSEG is committed to offering competitive Compensation and Benefits. The anticipated base salary for this position is $113,900 - $189,900. Please be aware base salary ranges may vary by geographic location, city and state. In addition to our offered base salary, this role is eligible for our Annual Incentive Plan (AIP/"bonus plan"). Target AIP rates will be commensurate with role level and posted career stage. Individual salary will be reflective of job related knowledge, skills and equivalent experience. LSEG roles (excluding internships and part-time roles of less than 20 hours per week) are typically eligible for inclusion in our LSEG Benefits program, which includes offerings of: Annual Wellness Allowance, Paid time-off, Medical, Dental, Vision, Flex Spending & Health Savings Options, Prescription Drug plan, 401(K) Savings Plan and Company match. LSEG's Benefits plan also includes basic life insurance, disability benefits, emergency backup dependent care, adoption assistance commuter assistance etc.

London Stock Exchange Group (LSEG) Information:

Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone's race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it's used for, and how it's obtained, your rights and how to contact us as a data subject.

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.