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Java Programmer Internship Jobs in Waltham, MA (NOW HIRING)

WHOOP

Software Engineer I (Backend)

Boston, MA · On-site

... Java, Kafka, Postgres, and AWS. • Collaborate with cross-functional partners across Product ... Required : • Professional experience in backend software development (internship, co-op, or ...

Capital One

Lead Machine Learning Engineer

Cambridge, MA · On-site +1

$112K - $147K/yr

... Internship experience does not apply) * At least 4 years of experience programming with Python, Scala, or Java * At least 2 years of experience building, scaling, and optimizing ML systems Preferred ...

Capital One

Lead Machine Learning Engineer (IC)

Cambridge, MA · On-site +1

$112K - $147K/yr

... Internship experience does not apply) * At least 4 years of experience programming with Python, Scala, or Java * At least 2 years of experience building, scaling, and optimizing ML systems Preferred ...

Capital One

Lead Machine Learning Engineer

Cambridge, MA · On-site +1

$112K - $147K/yr

... Internship experience does not apply) * At least 4 years of experience programming with Python, Scala, or Java * At least 2 years of experience building, scaling, and optimizing ML systems Preferred ...

Capital One

Sr. Lead Machine Learning Engineer

Cambridge, MA · On-site +1

$112K - $147K/yr

... Internship experience does not apply) * At least 4 years of experience programming with Python, Scala, or Java * At least 3 years of experience building, scaling, and optimizing ML systems * At least ...

FieldAI

Senior Data Operations Engineer

Boston, MA · On-site

$110K - $140K/yr

Onboard and train interns/contractors on equipment, SOPs, and the informed-consent process. * Write ... Python, Java, or equivalent scripting * LIDAR * Robotics (platforms, sensors, or control) * Linux ...

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Java Programmer Internship information

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How much do java programmer internship jobs pay per hour?

As of Aug 18, 2026, the average hourly pay for java programmer internship in Waltham, MA is $59.53, according to ZipRecruiter salary data. Most workers in this role earn between $51.11 and $67.69 per hour, depending on experience, location, and employer.

What is a java programmer internship?

A Java Programmer Internship is a temporary position designed for students or entry-level developers to gain hands-on experience in Java programming. Interns typically work on real-world projects, assisting in coding, debugging, testing, and maintaining Java applications. They collaborate with senior developers, learn industry best practices, and enhance their technical skills. This internship helps build a strong foundation for a career in software development by providing practical exposure to Java frameworks, tools, and development environments.

What kinds of projects or tasks do java programmer interns typically work on?

As a Java Programmer Intern, you can expect to work on a variety of tasks such as writing and testing code, fixing bugs, assisting with feature development, and supporting larger software projects under the guidance of experienced developers. Interns often participate in code reviews and team meetings to understand workflow and best practices. You'll likely have opportunities to collaborate with team members in both individual and group assignments, allowing you to apply your academic knowledge to practical scenarios. This hands-on experience is designed to help you build your programming skills and gain insight into professional software development processes.

What are the key skills and qualifications needed to thrive in the java programmer internship position, and why are they important?

To thrive as a Java Programmer Intern, you should have a solid understanding of Java programming fundamentals, object-oriented design, and basic data structures, usually supported by coursework or academic projects. Familiarity with development tools such as Eclipse or IntelliJ IDEA, source control systems like Git, and basic knowledge of SQL or web technologies is often expected. Strong problem-solving skills, eagerness to learn, attention to detail, and effective communication will help you stand out in a collaborative environment. These abilities ensure you can contribute to real-world coding tasks, adapt quickly to new challenges, and integrate smoothly within a team.

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Java Programmer Internship jobs near you
Infographic showing various Java Programmer Internship job openings in Waltham, MA as of August 2026, with employment types broken down into 23% Internship, 65% Full Time, and 12% Part Time. Highlights an 94% In-person, and 6% Remote job distribution, with an average salary of $123,820 per year, or $59.5 per hour.

Software Engineer I (Backend)

WHOOP

Boston, MA • On-site

Full-time

Re-posted 25 days ago

Job description

Job Summary:
WHOOP is on a mission to unlock human performance and healthspan through wearable technology that monitors vital physiological metrics. As a Software Engineer I, you will contribute to the design, development, and maintenance of backend services and APIs, working closely with cross-functional teams to deliver impactful solutions for members.
Responsibilities:
• Contribute to the development and maintenance of backend services and APIs that power WHOOP’s member-facing features using technologies such as Java, Kafka, Postgres, and AWS.
• Collaborate with cross-functional partners across Product, Design, Data Science, and Engineering to translate requirements into well-scoped technical solutions.
• Write clean, maintainable, and well-tested code while participating in code reviews to continuously improve engineering quality and standards.
• Support the operation and monitoring of production systems, helping to troubleshoot issues and ensure reliability, scalability, and performance.
• Break down feature requirements into actionable tasks, identify risks early, and iterate quickly to deliver value to members.
• Contribute to technical documentation and knowledge sharing to support team velocity and long-term maintainability.
Qualifications:
Required:
• Professional experience in backend software development (internship, co-op, or academic project experience acceptable).
• Experience building or interacting with RESTful APIs and relational databases (e.g., Postgres or similar SQL-based systems).
• Proficiency in an object-oriented programming language such as Java, or demonstrated ability to quickly learn new backend technologies.
• Familiarity with version control systems such as Git and standard development workflows.
• Understanding of fundamental computer science concepts including data structures, algorithms, and system design basics.
• Interest in distributed systems, event-driven architectures (e.g., Kafka or similar technologies), and cloud platforms such as AWS.
• Strong problem-solving skills and a growth mindset, with a willingness to seek feedback and continuously improve.
• Effective communication skills and the ability to collaborate within a cross-functional team environment.
Company:
WHOOP provides wearable fitness technology and a subscription platform that tracks physiological data for health and performance insights. Founded in 2012, the company is headquartered in Boston, USA, with a team of 501-1000 employees. The company is currently Late Stage.
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About Whoop

Sourced by ZipRecruiter

At WHOOP, we're on a mission to unlock human performance. WHOOP empowers users (Olympians, Professional Athletes, Fitness Enthusiasts, etc) to perform at a higher level through a deeper understanding of their bodies and daily lives.

Industry

Fitness and sports centers

Company size

501 - 1,000 Employees

Headquarters location

Boston, MA, US

Year founded

2012

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