Software Engineer – Ruby (AI Training) About The Role What if your Ruby expertise could directly influence how AI understands and writes production-grade software for developers around the world? We're looking for experienced Ruby Software Engineers to help design, evaluate, and improve real-world software systems used in AI training and data-driven workflows. This is a fully remote, versátil contract role built for working engineers who want to do meaningful, high-impact work on their own schedule — no office, no commute, no rigid hours. * Organization: Alignerr * Type: Hourly Contract * Location: Remote * Commitment: 10–40 hours/week What You'll Do * 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 Who You Are * 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 analytical — you can clearly explain your technical decisions in writing * Self-motivated and dependable when working independently without close supervision Nice to Have * Experience with Ruby on Rails or other Ruby-based frameworks * Familiarity with AI tools, data pipelines, or technical evaluation workflows * Background in code review, system design, or software architecture * Exposure to testing frameworks, debugging practices, or performance profiling Why Join Us * Work on cutting-edge AI projects alongside leading research labs * Fully remote and flexible — work when and where it suits you * Free

📌 Software Engineer (Vigo)
🏢 Alignerr
📍 Vigo