Project specification
Project expertise
Description
For an AI lab we are looking for Ruby Developer to train an AI model (Large Language Model - LLM).
You help AI to make sense of the world. As consultant, you may be invited to take part in online projects to train the model in your domain of expertise.
This flexible role accommodates both experts seeking part-time engagement (minimum few hours/week) and those interested in full-time opportunities.
- Code generation and code review
- Prompt evaluation and complex data annotation
- Training and evaluation of large language models
- Benchmarking and agent-based code execution in sandboxed environments
- Working across multiple programming languages (Python, JavaScript/TypeScript, Rust, SQL, etc.)
- Adapting guidelines for new domains and use cases
- Collaborating with project leads, solution engineers, and supply managers on complex or experimental projects
Requirements
- You hold a Bachelor's Degree in Software Development, Computer Science, or other related fields.
- You have at least 3 years of professional experience with Ruby, including strong knowledge of object-oriented programming, metaprogramming, and idiomatic Ruby practices.
- Your level of English is advanced (C1) or above.
- Proficient with code review, quality analysis, and identifying/fixing code smells, anti-patterns, and test gaps in Ruby codebases.
- Experience with test integration in CI/CD environments (GitHub Actions, GitLab CI, Jenkins, or CircleCI).
- Comfortable with standard version control workflows (Git) and Linux CLI tools.
- Experience using, integrating, or tutoring others with AI/ML or LLM-powered testing/coding solutions in Ruby projects.
- Familiarity with containerization technologies (Docker), automated deployment, and scripting within Ruby environments.
- Strong skills in defect documentation, profiling, and debugging Ruby applications.
- Experience generating and maintaining high-quality documentation for tests, bugs, and technical debt.
- Hackathon or competitive coding experience is a plus.
- You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines.
Application Process:
- If you are being selected you will by invited to an interview by Mindrift.
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Frequently asked questions
The project preferably starts in February 2026 and is planned to end in May 2026 (3 months).
The project requires a commitment of 5 - 100% capacity (full-time).
The project offers 95 - 100% remote work.
The project offers a daily rate of 128 - 384€ which breaks down to an hourly rate of 16 - 48€/h.
The project requires the following languages: English (Advanced).
The project is related to the following industry: Information Technology.
The project covers the following business areas: Information Technology, Quality Assurance, and Research and Development.
Yes! Recommend a freelancer for the project and earn 30% of FRATCH's profits every time they get placed — for the duration of that project. Simply share your invite link with a colleague to get started.
To apply for the project, click the Apply button on the project page to submit your profile for review. We will forward your resume to the client and get back to you within a few days.
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