Engineering

Java Developer

Why we like this role

Contractor Java work designing and reviewing Spring Boot microservices to help train AI systems. 23 openings, wide rate range. Prior AI experience is not required — Java expertise is.

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About this opportunity

Job Type: Contractor Location: Remote

As a 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

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
  • Excellent written and verbal communication skills
  • 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

Required skills

  • Java
  • Spring Boot
  • Microservices

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