Java Developer
$50 - $120/hourpay
Required Skills
JAVA
Kotlin
Spring Boot
Cursor
GraphQL
REST API
About micro1
micro1 connects domain experts to the development of frontier AI models. Real-world expertise is turned into training data, evaluations, and feedback loops that improve how models perform. AI labs and enterprises use micro1 to train models and build reliable AI agents through advanced evaluations and reinforcement learning environments. Experts contribute directly to how AI systems learn, reason, and perform across domains like finance, healthcare, engineering, and more. Our platform identifies and vets top talent through an AI recruiter, enabling high-quality contributions at scale.
Our goal is to enable 1 billion people to do meaningful work by applying their expertise to AI. We’ve raised $40M+ in funding, and our AI recruiter has powered over 1 million AI-led interviews as our global network of experts grows into the human intelligence layer for AI.
Job Description
Job Title: Java Developer - AI Expert
Job Type: Contract (Part-time)
Location: Remote
Job Summary:
Join our customer's team as an experienced Backend Developer. In this high-impact, remote role, you'll design, implement, and continually improve robust backend APIs while collaborating with cutting-edge AI research. You'll help test and shape the next generation of developer tools alongside a high-caliber engineering group.
Key Responsibilities:
- Design, develop, and optimize REST and GraphQL endpoints for scalable APIs.
- Drive data validation, error handling, and security best practices within backend services.
- Plan and execute database migrations, optimizations, and schema changes as needed.
- Actively test new AI-powered models in Cursor, providing actionable feedback via incident reports, bug traces, and screenshots.
- Participate in 4-day intensive testing bursts, exploring how AI models impact real coding workflows.
- Engage thoughtfully with the research team in a dedicated Slack channel to discuss findings and propose improvements.
- Submit detailed post-burst surveys, delivering insights on model performance and developer experience.
Required Skills and Qualifications:
- 3+ years of professional experience as a backend developer, with strong expertise in Java.
- Proficient in building and maintaining RESTful and GraphQL APIs.
- Advanced understanding of backend data validation, error handling, and API security.
- Hands-on experience with database migrations, performance tuning, and schema design.
- Extensive use of AI tools for coding; familiarity with Cursor is highly desirable.
- Outstanding written and verbal communication skills, with a knack for clear incident and bug reporting.
- Proven ability to thrive in fast-paced, confidential, and collaborative remote environments.
Preferred Qualifications:
- Visible contributions to open source (e.g., GitHub stars or contributions).
- Experience designing or evaluating experimental tooling and developer workflows.
- Demonstrated enthusiasm for AI advancements in software development.