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Java Internship Jobs in Fair Lawn, NJ (NOW HIRING)

Point72

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.

Harold Jean-Louis, Inc.

Web Developer Intern

Brooklyn, NY · On-site +1

INTERNSHIP PROGRAM This fast-paced environment creates the perfect conditions to challenge everyone ... Java Additional Information We are seeking an intern that can work independently. The position will ...

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Java Internship information

See Fair Lawn, NJ salary details

$15

$57

$78

How much do java internship jobs pay per hour?

As of Aug 11, 2026, the average hourly pay for java internship in Fair Lawn, NJ is $57.27, according to ZipRecruiter salary data. Most workers in this role earn between $49.52 and $64.09 per hour, depending on experience, location, and employer.

What is a Java internship?

A Java Internship is a temporary position, usually aimed at students or recent graduates, that provides hands-on experience working with Java programming in a real-world environment. Interns typically assist with software development tasks, bug fixing, and sometimes participate in designing and testing Java applications. This role helps individuals gain practical skills, industry knowledge, and professional networking opportunities that can aid in securing a full-time job in software development.

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

To thrive as a Java Intern, you need a solid understanding of Java programming, basic knowledge of object-oriented principles, and enrollment in or completion of a computer science or related degree. Familiarity with IDEs like Eclipse or IntelliJ IDEA, version control systems such as Git, and basic database concepts is often expected. Strong problem-solving skills, eagerness to learn, and effective communication set exceptional interns apart. These skills and qualities enable interns to contribute meaningfully to projects, adapt to team workflows, and accelerate their professional growth.

What is the difference between Java Internship vs Java Developer?

AspectJava InternshipJava Developer
Required CredentialsTypically pursuing or recently completed a degree in Computer Science or related fieldBachelor's degree in Computer Science or related, often with certifications
Work EnvironmentEntry-level, training-focused, often part-time or temporaryFull-time, professional development, project-based
Employer & Industry UsageInternships offered by tech companies, startups, and organizations for trainingFull-time roles in software development companies, IT departments, or tech firms
Common Search & Comparison IntentUnderstanding entry points into Java developmentSeeking full-time Java development roles

In summary, a Java Internship is an entry-level, training-focused position designed for students or recent graduates to gain practical experience. A Java Developer is a full-time professional role requiring more experience and responsibility in developing Java applications.

What types of projects do Java interns typically work on, and how do these projects support their learning and professional growth?

Java interns are often assigned to real-world projects such as developing web applications, enhancing existing codebases, or automating testing processes. These projects are designed to provide hands-on experience with Java frameworks like Spring or Hibernate, version control systems, and collaborative development tools. Interns usually work closely with experienced developers, participate in code reviews, and attend team meetings, which helps them gain valuable feedback and understand industry best practices. This environment not only sharpens their technical skills but also exposes them to effective teamwork and agile development methodologies, setting a strong foundation for future career opportunities.
What cities near Fair Lawn, NJ are hiring for Java Internship jobs? Cities near Fair Lawn, NJ with the most Java Internship job openings:
Java Internship jobs near you

Software Engineer - 2027 Interns

Ellipsis Labs, Inc

New York, NY • On-site

Internship

Re-posted 18 days ago

Job description

Ellipsis Labs is a profitable, venture-backed New York-based startup building sustainable and efficient DeFi protocols on high-throughput decentralized infrastructure. Our long-term goal is to build a better financial system.
Our flagship product, Phoenix Perpetuals, brings professional-grade perpetual futures to Solana. Building on our experience developing efficient markets, Ellipsis Labs also operates SolFi, a proprietary automated market maker that provides efficient liquidity for key trading pairs. Our foundational product, Phoenix Legacy, is a limit order book on the Solana blockchain that established our expertise in operating high-performance markets. Combined, these products have facilitated over $285B in trading volume across Solana markets.
Ellipsis Labs is seeking software engineering summer interns to join our team in 2027. As an early-stage startup, we appreciate bright generalists who can iterate and ship quickly. In this role, you will:
  • Build real product features and/or platform components across the stack, front end, back end, infra, or on-chain, based on your skills and interest
  • Own scoped projects end-to-end: problem definition → design → implementation → testing → deployment → monitoring
  • Collaborate with design and engineering to deliver fast, reliable, and secure experiences
  • Instrument and improve performance, reliability, and observability; write clear tests and documentation
Qualifications
Required
  • Hands-on experience building software (courses, personal projects, research, or internships) in one or more languages such as TypeScript/JavaScript, Python, Rust, Java, C/C++; you write clear, tested code
  • Solid CS fundamentals (data structures, algorithms, systems thinking) and familiarity with Git and basic debugging
  • Ability to make informed trade-offs with business context; high agency and a team-first mindset
  • Curiosity about DeFi/crypto (prior domain experience not required)

Preferred
  • Experience in one or more areas: full-stack web (React/Javascript), backend APIs/services, infrastructure/DevOps (Docker, CI/CD, cloud), or on-chain/low-level systems
  • Familiarity with blockchain technology (Solana a plus)
  • Interest or experience in fintech/trading
  • Rust or TypeScript proficiency

Apply