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Junior Java Developer Intern Jobs in Puerto Rico

Tainoapp

Software Developer - Intern

Caguas, PR · On-site

$18.75 - $24.50/hr

Android Development (Java) * Windows 8 Development (.Net) * Some more JavaScript A qualified mobile software developer candidate for us would be: Languages: * 4 JavaScript * 3 for {Objective-C} * 2 ...

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Junior Java Developer Intern information

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 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 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 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 Puerto Rico? For Junior Java Developer Intern jobs in Puerto Rico, the most frequently searched job titles are:
Junior Java Developer Intern jobs near you
Infographic showing various Junior Java Developer Intern job openings in Puerto Rico as of May 2026, with employment types broken down into 69% Full Time, 28% Part Time, and 3% Contract. Highlights an 90% Physical, 6% Hybrid, and 4% Remote job distribution.

Software Developer - Intern

Tainoapp

Caguas, PR • On-site

$18.75 - $24.50/hr

Full-time, Internship

Posted 28 days ago

Job description

Overview
TainoApp is a small, fast-moving company working to enable brands to connect with their customers on across all mobile devices. We're an energetic, passionate, and technology-loving team of entrepreneurs looking for more like-minded people to join us. You have the opportunity to make a dramatic impact and shape the future of our company. We're also one of the few true tech companies in Puerto Rico where you'll get a chance to work on something awesome, not just another enterprise solution using old technology.
For the techies, here is a list of some of the cool technologies we use:
  • A lot of JavaScript
  • Nginx/Tornado/Python
  • MongoDB
  • More JavaScript
  • iPhone/iPad Development (Objective-C)
  • Webkit-facing HTML5/CSS/AJAX
  • Amazon Web Services
  • Android Development (Java)
  • Windows 8 Development (.Net)
  • Some more JavaScript

A qualified mobile software developer candidate for us would be:
Languages:
  • 4 JavaScript
  • 3 for {Objective-C}
  • 2 for {Java/Android, .Net}
  • 1 for any of {Python, Ruby, Perl, PHP}

Infrastructure Musts:
  • 2 for any of Web Frameworks {Tornado, Django, Twisted, CherryPy, Rails, PHP, ...}
  • 1 for any of SQL: {MySQL, PostgreSQL, SQL Server, Oracle, ...}

Know This Other Stuff:
  • Security
  • Concurrency
  • Optimization
  • Memory Management

Work Style
  • Startup Hours
  • Startup Energy
  • Scary Fast Learner
  • Experience building a well-designed iPhone App on the AppStore

Responsibilities
  • Be curious
  • Love the startup environment
  • Code elegantly
  • Work well in a team environment
  • Be capable of working independently on dev, but work together with rest of team on overall strategy and features
  • Like french toast (we have brunch as a team on weekends)
  • Ninja like ability to build and deploy scalable web apps
  • Construct protocols to deliver a superb user experience
  • Own your architecture, front-to-back

Compensation
Competitive Market Salary + Health Benefits + Stock Options

Apply