Java Developer

Java Developer

$30 - $90/hour

pay

Required Skills

JAVA

Spring Boot

Microservices

About micro1

micro1 is the leading AI data lab for training frontier models and evaluating AI agents. Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more. micro1 transforms that real-world expertise into high-quality training data, evaluations, and feedback loops that improve how AI systems learn, reason, and perform.

Our platform identifies and vets top talent through an AI recruiter, enabling high-quality expert contributions at scale. We aim to enable 1 billion people to do meaningful work by applying their expertise to AI. As our global expert network grows, micro1 is building the human intelligence layer for frontier AI.

Job Title

Java Developer

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.

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.