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Junior Java Developer Intern Jobs in Colorado (NOW HIRING)

PNC

Software Engineer - iOS/Android

Lakewood, CO · On-site

... Full Stack Java Developer with expertise in developing scalable web applications and mobile ... junior developers and contribute to technical leadership discussions. PNC is an in-office company ...

True Anomaly

GSE Engineering Intern

Denver, CO · On-site

$28 - $32/hr

Fall Intern Program will run September - December 2026 * Must be able to provide own transportation ... Have completed their Junior and/or Senior year * GPA of 3.5 or above * Familiarity with CAD tools ...

IT America Inc

GCP Java Technical Lead

Denver, CO · On-site

Position: GCP Java Technical Lead Location: Denver, CO - (Hybrid - 3 days a week in office ... Mentor and guide junior developers, fostering technical growth and ensuring knowledge sharing ...

Solid Power

Product Engineering Intern

Thornton, CO · On-site

$25/hr

Solid Power is seeking a Product Engineering Intern to join our talented team of engineers and ... Enrolled at least at a junior level in a bachelor's program in a STEM field * Experience with ...

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Junior Java Developer Intern information

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 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 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 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.

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The top searched job categories for Junior Java Developer Intern jobs in Colorado are:

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Cities in Colorado with the most Junior Java Developer Intern job openings:

Junior Java Developer Intern jobs near you

Junior Application Developer

CACI International, Inc.

Denver, CO • On-site

$53K - $106K/yr

Full-time

Medical, Retirement, PTO

Re-posted yesterday

Job description

Job Title: Junior Application Developer
Job Category: Information Technology
Time Type: Full time
Minimum Clearance Required to Start: TS/SCI with Polygraph
Employee Type: Regular
Percentage of Travel Required: Up to 10%
Type of Travel: Continental US
Anticipated Posting End: 12/31/2026
The Opportunity:
  • Launch your development career on a fast-paced Agile team building GEOINT applications for the National Geospatial-Intelligence Agency (NGA).
  • Contribute to modern web-based software that directly supports national security missions.
  • Gain hands-on experience with GIS technologies, cloud-native architectures, and large-scale data environments.
  • Learn from experienced developers and architects invested in growing your skills.

Responsibilities:
  • Develop, test, and maintain application features under the guidance of senior developers.
  • Implement web application functionality using Java and/or Python and modern frameworks.
  • Support integration of application components with APIs, services, and databases.
  • Assist with GIS-enabled feature development and geospatial service enhancements.
  • Participate in code reviews, unit testing, debugging, and documentation.
  • Apply secure coding practices and follow established engineering standards.
  • Contribute within sprint cycles as part of a cross-functional Agile team.

Qualifications:
Required:
  • Bachelor's degree in Computer Science, Software Engineering, or a related technical discipline (equivalent experience accepted).
  • 0-3 years of professional software development experience.
  • Experience developing software using Java, Python, or both (academic, internship, or professional).
  • Familiarity with web application development concepts and technologies.
  • Understanding of relational databases and basic data modeling principles.
  • Strong problem-solving skills and ability to work effectively within a team.
  • Security Clearance (TS/SCI) with willingness to undergo polygraph examination.

Desired:
  • Exposure to GIS technologies (ArcGIS, GeoServer, OpenLayers, Cesium, or similar).
  • Familiarity with Git, CI/CD, or containerization tools.
  • Coursework or projects involving Agile development practices.
  • Experience using geospatial software such as Esri ArcGIS Pro / ArcGIS Enterprise and related APIs.

What You Can Expect:
A culture of integrity.
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation.
An environment of trust.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
A focus on continuous growth.
Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.
Pay Range:
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
Since this position can be worked in more than one location, the range shown is the national average for the position.
The proposed salary range for this position is:
$53,100-$106,300
CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

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