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Junior Java Developer Intern Jobs in Pennsylvania

PSC Biotech

Engineering Intern

York, PA · On-site

$16.50 - $21.50/hr

Engineering Interns support day-to-day activities related to equipment, facilities, and utility ... Currently a rising senior or junior pursuing a degree from a local college or university in ...

PSC Biotech

Engineering Intern

York, PA

$16.50 - $21.50/hr

Engineering Interns support daytoday activities related to equipment, facilities, and utility ... Requirements Currently a rising senior or junior pursuing a degree from a local college or ...

PSC Biotech

Engineering Intern

York, PA

$16 - $18/hr

Your Role Our engineering internships provide hands‑on exposure to working alongside experienced ... Currently a rising senior or junior pursuing a degree from a local college or university in ...

Avani Technology Solutions, Inc.

Java Lead

Radnor, PA · On-site

... developers and escalate technical and other project risks related to project milestone dates ... Excellent communication capability Proactive attitude, ability to mentor junior teammates ...

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Junior Java Developer Intern information

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 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 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.
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What cities in Pennsylvania are hiring for Junior Java Developer Intern jobs? Cities in Pennsylvania 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 Pennsylvania as of August 2026, with employment types broken down into 75% Full Time, 10% Part Time, 14% Contract, and 1% Nights. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

SKILLBRIDGE INTERNSHIP - Front-end Software Developer

Trinity IT

Yardley, PA • On-site

$100K - $116K/yr

Full-time, Internship

Re-posted 16 days ago

Job description

As a SkillBridge Front End Developer Intern, you will be responsible for assisting in the creation and maintenance of visually appealing and user-friendly web applications. Your primary focus will be on implementing designs provided by the UI/UX team, ensuring seamless user experiences, and contributing to the overall success of our digital projects. This is an excellent opportunity for a passionate and aspiring Junior Front End Developer to grow their skills and contribute to exciting projects.
Responsibilities:
  • Front End Development: Collaborate with the design and development teams to convert design mock-ups and wire frames into responsive and functional web pages using HTML, CSS, and JavaScript.
  • User Interface (UI) Implementation: Ensure the timely implementation of UI components, styles, and interactions to deliver an aesthetically pleasing and intuitive user interface.
  • Cross-Browser and Device Compatibility: Optimize web applications to ensure seamless performance across different browsers, devices, and screen sizes.
  • Code Maintenance: Assist in maintaining and updating existing codebases to improve performance, fix bugs, and enhance user experiences.
  • Performance Optimization: Work with the team to identify and implement front end performance improvements to achieve faster load times and smoother interactions.
  • Collaboration: Collaborate with back end developers and other team members to integrate front end components with server-side logic, databases, and APIs.
  • Quality Assurance: Participate in testing and debugging processes to identify and resolve issues, ensuring the delivery of high-quality web applications.
  • Learning and Growth: Stay up-to-date with the latest front end development trends, tools, and best practices to continuously enhance your skills and knowledge.

Skills and Qualifications:
  • Requires SkillBridge Eligibility:
    • Have 180 days of service or fewer remaining prior to your date of discharge and you have at least 180 continuous days of active service.
    • Obtain approval from your unit commander.
    • Agree that participation in SkillBridge can be terminated at any time by the service if mission requirements dictate.
  • Educational Background: A degree or diploma in Computer Science, Web Development, or a related field is preferred, but not mandatory. Relevant practical experience and self-learning will also be considered.
  • Proficiency in Front End Technologies: Solid understanding of HTML, CSS, and JavaScript, as well as basic familiarity with front end frameworks and libraries (e.g., React, Angular, Vue.js).
  • Responsive Design: Ability to create responsive web layouts that adapt seamlessly to various screen sizes and devices.
  • Problem-Solving Skills: Strong analytical and problem-solving abilities to effectively tackle coding challenges and find innovative solutions.
  • Team Player: A collaborative mindset with excellent communication skills to work effectively within a diverse development team.
  • Attention to Detail: A keen eye for detail to ensure pixel-perfect implementation of design elements.
  • Time Management: Ability to manage tasks efficiently, prioritize work effectively, and meet project deadlines.
    Trinity IT offers a competitive salary, an extensive benefits package and a work environment that encourages excellence. Applicants selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information. Trinity IT is an equal opportunity employer that does not discriminate in employment. All qualified applicants will receive consideration for employment without regard to their race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or protected class.

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