Remote Ruby Engineer for AI Training & APIs

Alignerr Corp.; España; Remote; PHP 2,180,000 - 5,231,000; Full time

Job summary

Alignerr Corp. is seeking a skilled Ruby Software Engineer to shape production-grade backend services and APIs used by AI-driven workflows. This remote, hourly contract offers flexible 10–40 hours per week and opportunities to impact global developers.

You will design, evaluate, and improve real-world systems with Ruby, collaborate asynchronously with researchers, and contribute to robust, data-driven data pipelines while maintaining high code quality.

Qualifications

• 2+ years of professional software engineering experience.
• Strong proficiency in Ruby and backend development concepts.
• Comfortable working with production codebases, RESTful APIs, and data-driven systems.
• Detail-oriented and able to explain technical decisions in writing.
• Self-motivated and dependable when working independently without close supervision.

Responsibilities

• Develop and maintain backend services and APIs using Ruby and Ruby-based frameworks
• Review, analyze, and improve existing codebases for correctness, performance, and maintainability
• Evaluate realistic software engineering scenarios to help create and validate high-quality technical datasets
• Collaborate asynchronously with researchers and engineers to support AI training and evaluation efforts
• Apply production-grade engineering thinking to real-world backend and API problems

Skills

Ruby

Backend development

RESTful APIs

Data-driven systems

Code review

Tools

Ruby on Rails

Job description

Alignerr Corp. is seeking a skilled Ruby Software Engineer to shape production-grade backend services and APIs used by AI-driven workflows. This remote, hourly contract offers flexible 10–40 hours per week and opportunities to impact global developers.

You will design, evaluate, and improve real-world systems with Ruby, collaborate asynchronously with researchers, and contribute to robust, data-driven data pipelines while maintaining high code quality.