Remote Ruby Engineer for AI Training & Backend

Alignerr Corp.; France; Remote; EUR 34,000 - 83,000; Full time

Job summary

Alignerr is seeking a Ruby Software Engineer to help shape AI training by reviewing and developing backend services and APIs in Ruby. This fully remote, hourly contract role involves working with researchers to design real-world coding scenarios that teach AI how production-grade software works.

Ideal candidates have 2+ years of experience, strong Ruby backend skills, and a solid understanding of APIs and data-driven systems.

Qualifications

• 2+ years of professional software engineering experience.
• Strong proficiency in Ruby and backend development in production codebases.
• Solid understanding of APIs and data-driven systems.

Responsibilities

• Develop, review, and evaluate backend services and APIs in Ruby.
• Analyze codebases for correctness and performance; explain reasoning clearly.
• Create and validate realistic AI training and evaluation scenarios.
• Assess AI-generated Ruby code for quality and production-readiness.
• Collaborate asynchronously with researchers and engineers supporting AI development.
• Complete task-based assignments independently on your schedule.

Skills

Ruby

Backend development

APIs

Async collaboration

Tools

Ruby on Rails

Job description

Alignerr is seeking a Ruby Software Engineer to help shape AI training by reviewing and developing backend services and APIs in Ruby. This fully remote, hourly contract role involves working with researchers to design real-world coding scenarios that teach AI how production-grade software works.

Ideal candidates have 2+ years of experience, strong Ruby backend skills, and a solid understanding of APIs and data-driven systems.