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Java Full Stack Developer Intern Jobs in Nashua, NH

Full Stack Developer

Woburn, MA · On-site

$175K - $240K/yr

As a Mission Engineer (Full Stack) in the Mission Applications Group, you will develop and deploy software essential for a specific, real-world objective or "mission" in partnership with our ...

As our AI Full Stack Developer, you will be the technical heart of that investment, the person who designs, builds, and evolves the AI solutions that BRUNT's teams depend on to work smarter, move ...

Globality - Full Stack Engineer No of Positions: 4 Location: Merrimack, NH Rate: $50/hr. on W2 ... Java Overview: Fidelity (Business Unit: FI) is seeking 3-4 highly skilled Senior Software ...

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. 3+ years of Development Experience with Oracle SQL / PLSQL 5+ years of ...

Java Developer

Merrimack, NH · On-site

$52.25 - $67.50/hr

Title: Full Stack Engineer Location: MERRIMACK, NH (IN-person interview) Duration:-Long term Project Technical Skill • 50% Core Java - springBoot, API microservices, KAFKA (nice to have) • 25 ...

Job Title: Full Stack Engineer Location: North Andover, MA (Local or nearby candidates only ... Familiarity with CI/CD pipelines and DevOps practices. * Experience with containerization tools ...

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Java Full Stack Developer Intern information

See Nashua, NH salary details

$10

$58

$78

How much do java full stack developer intern jobs pay per hour?

As of Jun 22, 2026, the average hourly pay for java full stack developer intern in Nashua, NH is $58.66, according to ZipRecruiter salary data. Most workers in this role earn between $51.01 and $65.82 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Java Full Stack Developer Intern, and why are they important?

To thrive as a Java Full Stack Developer Intern, you need a solid understanding of Java, front-end technologies like HTML, CSS, and JavaScript, and basic software development principles, ideally supported by coursework or relevant projects. Familiarity with development tools such as Eclipse or IntelliJ IDEA, version control systems like Git, and frameworks like Spring Boot and React is typically expected. Strong problem-solving skills, attention to detail, and effective communication help interns collaborate and learn quickly in a team environment. These skills and tools are essential for building robust applications and contributing meaningfully to development projects.

What is the difference between Java Full Stack Developer Intern vs Java Backend Developer Intern?

AspectJava Full Stack Developer InternJava Backend Developer Intern
Required SkillsJava, JavaScript, HTML, CSS, frameworks like React or AngularJava, Spring Boot, REST APIs, databases
Work EnvironmentFront-end and back-end development, UI/UX focusBack-end development, server-side logic
Industry UsageWeb applications, enterprise solutionsAPI services, server-side applications

The main difference is that a Java Full Stack Developer Intern works on both front-end and back-end components, while a Java Backend Developer Intern focuses solely on server-side development. Both roles require Java skills, but the full stack role demands knowledge of front-end technologies and UI design, making it broader in scope.

What are some common challenges faced by Java Full Stack Developer Interns, and how can they be effectively addressed?

Java Full Stack Developer Interns often encounter challenges such as balancing work between front-end and back-end development, managing time across multiple tasks, and adapting to fast-paced agile environments. It's important to communicate regularly with mentors and team members for guidance, seek feedback on code reviews, and utilize online resources to strengthen both Java and front-end framework skills. Embracing a proactive learning approach and collaborating closely with other developers can help interns overcome initial hurdles and build confidence in contributing to real projects.

What does a Java Full Stack Developer Intern do?

A Java Full Stack Developer Intern assists in the development of both the front-end and back-end components of web applications using Java and related technologies. They typically work under the guidance of senior developers to write code, troubleshoot issues, and learn the software development lifecycle. Responsibilities may include building user interfaces, creating server-side logic, integrating databases, and testing new features. This role is ideal for students or recent graduates seeking hands-on experience in full stack development.
What job categories do people searching Java Full Stack Developer Intern jobs in Nashua, NH look for? The top searched job categories for Java Full Stack Developer Intern jobs in Nashua, NH are:
Full Stack Developer

Full Stack Developer

STR

Woburn, MA • On-site

$175K - $240K/yr

Full-time

Posted 16 days ago


Job description

About the Team:

Information processing and sense-making systems are the lifeblood of national security efforts, facilitating an understanding of the global situation, strategic planning, and tactical execution. The reliability, accessibility, and sophistication of these systems can determine the outcomes of conflicts before they begin. STR's Analytics and Command & Control (AC2) Division focuses on developing actionable, advanced technology solutions to provide asymmetric advantages within the information domain.

The Mission Applications (MA) Group within the AC2 Division specializes in ensuring the technology that STR creates produces outsized mission impact. Staff within the MA group have a deep understanding of missions and technology needs for national security with skills targeting transition of technology to operational use, including product management, UX Product implementation, software integration & mission engineering, platform engineering, DevOps, and program management. MA staff combine with other science and engineering staff from the various STR research and development groups to form dedicated product teams focused on accelerating the operational transition of cutting-edge software technologies.

The Role:

As a Mission Engineer (Full Stack) in the Mission Applications Group, you will develop and deploy software essential for a specific, real-world objective or "mission" in partnership with our customers. You have: 1) expertise in developing and deploying software solutions in complex and high-security environments, 2) deep domain knowledge in the complex missions executed across the Department of Defense, and 3) expertise in modern frameworks, building full stack applications, and integrating APIs for deployment in high-security environments.

You will work as a leader of software teams to design, develop, and maintain software systems deployed in operational use. You have experience managing customer relationships while simultaneously leading engineering teams to ensure the delivered product meets the highest standards of quality, reliability, and performance. 

What you will do:

  • Build Prototype Capabilities: Break down use cases and user-defined problems, build an MVP, and rapidly evolve a solution into a cohesive application
  • Develop and Enhance Features: Create high-performance, visually appealing frontend solutions that handle complex use cases effectively. Ensure the product is fast, smooth, and intuitive to use, even under heavy load
  • System Integration: Leading cross functional engineering teams to design, build, and deploy a cohesive system. Integrate independent capabilities into existing solutions
  • Customer Collaboration: Working closely with end-users and customers, who are typically military or Government operators, to understand their requirements and translate them into software features. You are experienced in product discovery best practices
  • Deployment and Field Testing: Traveling to integration sites to deploy, test, and triage software in secure operational environments. On average, travel to customer sites should not exceed one week per month

Who You Are:

  • Ability to obtain security clearance, for which U.S Citizenship is needed by the U.S government
  • BS in Computer Science or related technical field with at least 7 years of work experience. Equivalent experience will be considered
  • Experience deploying software for DoD or IC missions
  • A passion for crafting user-centric interfaces and a keen eye for design details
  • Demonstrated strong knowledge of modern technologies such as React, TypeScript, and Python
  • Knowledge of performance-focused tools and techniques for rendering large datasets and building responsive, smooth interfaces
  • A demonstrated ability to adopt new languages, libraries, and technologies
  • Organized, detail-oriented, and with an ability to work both independently and collaboratively
  • Demonstrated experience as an effective communicator to both technical and non-technical audiences

Even Better:

  • Active Security Clearance at the Top Secret level with SCI Eligibility
  • Advanced Degree in Computer Science, Information Technology, or related technical field
  • Prior US Military Service with experience in joint planning, large force battle monitoring, and fluidity with large force debrief best practices
  • Located in San Diego, CA, Denver, CO, Arlington, VA, or Boston, MA, or willing to relocate

Pay Information
Full-Time Salary Range: $175,000 - $240,000

The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate's experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions.

STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, and Carlsbad, CA. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.

STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer.

STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at www.str.us for more info.


STR is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.

If you need a reasonable accommodation for any portion of the employment process, email us at appassist@str.us and provide your contact info.

Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.