Remote Freelance Developer Consultant (Ruby)

Salary: £63,000 - 103,000 per year

Requirements

• We require a Bachelors or Masters degree in Software Development, Computer Science, or another related field.
• We require at least 3 years of professional experience, including hands-on experience with Ruby testing frameworks such as RSpec, Minitest, and Capybara, as well as automation tools.
• We require advanced English proficiency (C1) or above.
• We require proficiency in code review, quality analysis, and identifying and fixing code smells, anti-patterns, and test gaps in Ruby codebases.
• We require experience with test integration in CI/CD environments such as GitHub Actions, GitLab CI, Jenkins, or CircleCI.
• We require experience using, integrating, or tutoring others with AI/ML or LLM-powered testing and coding solutions in Ruby projects.
• We require familiarity with containerization technologies such as Docker, automated deployment, and scripting within Ruby environments.
• We require strong skills in defect documentation, profiling, and debugging Ruby applications.
• We require experience generating and maintaining high-quality documentation for tests, bugs, and technical debt.
• Hackathon or competitive coding experience is a plus.
• We require flexibility, quick adaptation to new requirements, and the ability to switch between tasks and topics quickly.
• We require that candidates currently reside in the specified country and can provide their resume in English.

Responsibilities

• We collaborate on AI projects as an AI Tutor in Coding.
• We create code generation and code review tasks.
• We perform prompt evaluation and complex data annotation.
• We train and evaluate large language models.
• We benchmark and execute agent-based code in sandboxed environments.
• We work across multiple programming languages, including Python, JavaScript/TypeScript, Rust, and SQL.
• We adapt guidelines for new domains and use cases.
• We follow project-specific rubrics and requirements.
• We collaborate with project leads, solution engineers, and supply managers on complex or experimental projects.
• We create training prompts and refine model responses.
• We contribute on our own schedule in a part-time, fully remote freelance setting.

Technologies

• AI
• CI/CD
• Docker
• GitHub
• GitLab
• JavaScript
• Jenkins
• LLM
• Python
• RSpec
• Ruby
• Rust
• SQL
• TypeScript
• Backend

More

We are Mindrift, a platform where innovation meets opportunity, and we use collective intelligence to ethically shape the future of AI. We connect specialists with AI projects from major tech innovators and aim to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. This is a fully remote freelance opportunity with flexible, part-time project work that fits around other professional or academic commitments, and rates can go up to $44/hour depending on skills, experience, and project needs. We invite candidates who are ready to contribute their expertise, learn quickly, and help shape how future AI models understand and communicate in their field.

last updated 28 week of 2026