Java Developer - Remote

Role Overview

Join a customer team as a Java Backend Developer (AI Expert) in a remote, contract (part-time) role. You’ll design and improve robust backend APIs and collaborate with an AI research effort by testing AI-powered models and providing detailed feedback.

Responsibilities

• Design, develop, and optimize backend APIs, including REST and GraphQL endpoints
• Implement data validation, error handling, and API security best practices
• Plan and execute database migrations, performance tuning, and schema changes
• Test AI-powered models in Cursor, submitting actionable feedback via:
  • incident reports
  • bug traces
  • screenshots
• Participate in 4-day intensive testing bursts to assess how AI impacts real coding workflows
• Collaborate with the research team in a dedicated Slack channel
• Submit detailed post-burst surveys covering model performance and developer experience

Requirements

• 3+ years professional backend experience, with strong Java expertise
• Proficiency building and maintaining RESTful and GraphQL APIs
• Advanced backend knowledge of data validation, error handling, and API security
• Hands-on experience with database migrations, performance tuning, and schema design
• Extensive use of AI coding tools; Cursor is highly desirable
• Strong written and verbal communication, especially for clear incident/bug reporting
• Ability to work effectively in fast-paced, confidential, collaborative remote environments

Nice-to-Haves

• Visible open-source contributions (e.g., GitHub contributions/stars)
• Experience designing/evaluating experimental tooling and developer workflows
• Enthusiasm for AI advancements in software development