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Internship Java Back End Developer Jobs in Seattle, WA

Interaction24 LLC

Fullstack React/Java Developer

Seattle, WA · On-site

$59.75 - $77.25/hr

Develop and maintain robust back-end systems using Java. * Integrate and manage Kafka for real-time ... Collaborate with DevOps to deploy, monitor, and troubleshoot applications in a cloud environment.

Tata Consultancy Service Limited

Engineer

Seattle, WA · On-site

$100K - $125K/yr

... a skilled Java Full Stack Developer to design, develop, and maintain modern web applications across the full technology stack. The ideal candidate will have strong expertise in Java backend ...

OpenAI

Backend Software Engineer (Evals)

Seattle, WA · On-site

Required : • 4+ years of backend engineering experience at product-driven companies (excluding internships) • Proficiency in backend technologies. Our tech stack includes Python, FastAPI, and ...

Akraya Inc.

Java Developer: 26-01749

Bellevue, WA · On-site

$52 - $57.40/hr

Java (Expert), AWS Services (Expert), Data Structures & Algorithms (Expert), Microservices ... Strong DSA (coding/problem-solving) skills and backend engineering fundamentals Industry Experience:

Otter

Back-end Software Engineer

Seattle, WA · On-site

As a Back-end Software Engineer, you will build AI-powered platforms that automate marketing for ... Required : • Proficiency in a general-purpose backend language (e.g., Java, Go, or Python). • ...

Atoms

Back-end Software Engineer

Seattle, WA · On-site

As a Back-end Software Engineer, you will build an AI-powered platform that automates marketing for ... Required : • Proficiency in a general-purpose backend language (e.g., Java, Go, or Python). • ...

Apple

AIML - Backend Engineer, Evaluation

Seattle, WA

$139K - $258K/yr

Description As a Backend Engineer in AIML Evaluation, you will design and integrate scalable ... Proficiency in languages such as Python, GoLang, or Java. Experience with distributed systems ...

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How much do internship java back end developer jobs pay per hour?

As of Jun 25, 2026, the average hourly pay for internship java back end developer in Seattle, WA is $62.17, according to ZipRecruiter salary data. Most workers in this role earn between $55.24 and $71.68 per hour, depending on experience, location, and employer.

What does an Internship Java Back End Developer do?

An Internship Java Back End Developer assists in building and maintaining the server-side logic, databases, and application integration for web or software projects using Java technologies. They typically work with frameworks like Spring or Hibernate, write and test code, and collaborate with front-end developers to ensure seamless functionality. Interns gain hands-on experience by participating in real-world projects, debugging issues, and learning industry best practices under the guidance of senior developers.

What types of projects and tasks can an Internship Java Back End Developer expect to work on during their internship?

As an Internship Java Back End Developer, you will typically assist with developing and maintaining server-side logic, building APIs, and supporting the integration of front-end elements. You'll likely work on tasks such as writing and debugging Java code, optimizing database queries, participating in code reviews, and collaborating closely with senior developers and other team members. Interns are often assigned to real-world projects that help them build practical skills, and they may attend agile meetings to understand how software development teams operate. This hands-on experience provides a strong foundation for future career advancement in back-end development.

What are the key skills and qualifications needed to thrive as an Internship Java Back End Developer, and why are they important?

To thrive as an Internship Java Back End Developer, you need a foundational understanding of Java programming, object-oriented design, and familiarity with databases, typically gained through coursework or personal projects. Experience with tools like Spring Boot, Git, and relational database management systems such as MySQL or PostgreSQL is commonly required. Problem-solving skills, teamwork, and effective communication are important soft skills in this role. These abilities enable interns to contribute to project development, collaborate with teams, and efficiently learn best practices in a professional setting.
What are the most commonly searched types of Java Back End Developer jobs in Seattle, WA? The most popular types of Java Back End Developer jobs in Seattle, WA are:
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Internship Java Back End Developer jobs near you
Infographic showing various Internship Java Back End Developer job openings in Seattle, WA as of June 2026, with employment types broken down into 1% Internship, 3% As Needed, 60% Full Time, 3% Part Time, and 33% Contract. Highlights an 90% Physical, 1% Hybrid, and 9% Remote job distribution, with an average salary of $129,316 per year, or $62.2 per hour.

Fullstack React/Java Developer

Interaction24 LLC

Seattle, WA • On-site

$59.75 - $77.25/hr

Other

Posted 26 days ago

Job description

Fullstack React/Java Developer

Seattle, Washington, United States

About the Job

Location: Need to sit onsite in Seattle, WA (hybrid) Interview Process: 2 Round - Technical # of openings: 4 Seniority: x4 or x5 (8-10+ years) Intake Notes: Will have a formal intake when the SOW is approved this week. This is a pipeline req for now. Must Haves: 1) It will be 70% React.js 2) Java 3) Kafka 4) NoSQL

We are seeking a talented and experienced Senior Full Stack Developer with a strong emphasis on React.js to join our dynamic team. In this role, you will be responsible for building and maintaining high-performance, scalable applications that power our platform. You will spend approximately 70% of your time working on front-end development using React.js and the remaining 30% on back-end technologies including Java, Kafka, and NoSQL databases.

Key Responsibilities:

  • Front-End Development (70%):
    • Design, develop, and optimize user interfaces using React.js.
    • Collaborate with UI/UX designers to implement responsive and visually appealing web applications.
    • Ensure the technical feasibility of UI/UX designs and optimize applications for maximum speed and scalability.
    • Maintain and improve existing React.js applications with a focus on performance and user experience.
  • Back-End Development (30%):
    • Develop and maintain robust back-end systems using Java.
    • Integrate and manage Kafka for real-time data streaming and event-driven architecture.
    • Work with NoSQL databases to design, develop, and optimize data models that support large-scale applications.
    • Collaborate with DevOps to deploy, monitor, and troubleshoot applications in a cloud environment.
  • Collaboration & Communication:
    • Work closely with cross-functional teams including Product, Design, and DevOps to deliver high-quality software solutions.
    • Participate in code reviews, pair programming, and knowledge-sharing sessions.
    • Contribute to the continuous improvement of development processes and best practices.

Required Skills & Experience:

  • Proven experience in front-end development with React.js (70% focus).
  • Strong proficiency in Java for back-end development.
  • Hands-on experience with Kafka for real-time data processing.
  • Expertise in NoSQL databases (e.g., MongoDB, Cassandra, DynamoDB).
  • Solid understanding of RESTful APIs and microservices architecture.
  • Experience with version control systems (e.g., Git).
  • Familiarity with cloud platforms (e.g., AWS, Azure) is a plus.
  • Excellent problem-solving skills and attention to detail.
  • Strong communication and teamwork abilities.

Education:

  • Bachelors degree in Computer Science, Engineering, or a related field, or equivalent practical experience.

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