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Backend Java Developer

Pay
$60–$110/hr
Type
Hourly
Spots left
50
Location
Remote
Posted
August 20, 2026

Good fit for: software engineers, developers, and programmers.

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Listing verified on the platform’s official board. Last checked September 25, 2026.

Job Title: Backend Java Developer

Job Type: Contractor

Location: Remote

As a Backend Java Developer, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

Key Responsibilities

  • Design, develop, and maintain scalable backend systems using Java and Spring Boot.
  • Architect robust microservices solutions to support complex application requirements.
  • Collaborate with the customer's team to review technical specifications and deliver high-quality code.
  • Contribute expert insights to improve application performance, reliability, and security.
  • Participate in code reviews and provide constructive feedback to peers.
  • Document technical processes and solutions with clear, concise written communication.
  • Troubleshoot, debug, and optimize backend systems as needed.

Required Skills and Qualifications

  • Expert proficiency in Java programming language.
  • Hands-on experience with Spring Boot framework for backend development.
  • Strong knowledge of microservices architecture and design principles.
  • Demonstrated ability to write clean, maintainable, and efficient code.
  • Exceptional written and verbal communication skills, with a keen attention to detail.
  • Experience collaborating with remote teams in a fast-paced environment.
  • Solid understanding of REST APIs, data structures, and backend best practices.

Preferred Qualifications

  • Exposure to cloud platforms such as AWS, Azure, or Google Cloud.
  • Prior experience working on AI-driven or data-intensive projects.
  • Background in high-availability or distributed systems.
Applying via micro1: micro1 screens with an AI interview ("Zara") and pays weekly once placed. Free to apply; most roles are long-running contracts.

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