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, adaptable 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
- Freelance autonomy with the structure of meaningful, task-based work
- Make a direct, tangible impact on how AI understands and generates real-world code
- Potential for ongoing work and contract extension as new projects launch

📌 Software Engineer - Ruby (España)
🏢 Alignerr
📍 España