Freelance Software Developer (Ruby) - Ai Trainer

Mindrift; Remote; ZAR 300 000 - 400 000; Part time

Job summary

A leading technology firm seeks a Freelance Software Developer (Ruby) for an innovative AI training project. This part-time, remote role requires advanced English and expertise in Ruby. Candidates will challenge AI with prompts and evaluate its responses. An ideal fit is a mid-senior level professional with a Bachelor's or Master's Degree in Software Development and about 3 years of experience. Join us to shape the future of AI while managing your own schedule.

Benefits

Flexible remote work schedule

Competitive pay up to $22/hour

Experience with advanced AI projects

Qualifications

• At least 3 years of professional experience with Ruby and key ecosystem tools.
• Your level of English should be advanced (C1) or above.
• Hands-on experience with containerization and CI/CD pipelines.

Responsibilities

• Generate prompts that challenge AI.
• Define scoring criteria to evaluate AI's answers.
• Correct the model's responses based on your domain knowledge.

Skills

Ruby

RSpec

Bundler

Git

Linux CLI

Docker

CI/CD pipelines

TDD

Education

Bachelor's or Master's Degree in Software Development or related fields

Tools

GitHub Actions

GitLab CI

Jenkins

Job description

Freelance Software Developer (Ruby) – AI Trainer

This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency. At Mindrift, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI.

What We Do

The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real‑world expertise from across the globe.

About The Role

Gen AI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you'll have the opportunity to collaborate on these projects.

Typical Responsibilities

• Generate prompts that challenge AI.
• Define comprehensive scoring criteria to evaluate the accuracy of the AI's answers.
• Correct the model's responses based on your domain‑specific knowledge.

How To Get Started

Simply apply to this post, qualify, and get the chance to contribute to projects aligned with your skills, on your own schedule. From creating training prompts to refining model responses, you'll help shape the future of AI while ensuring technology benefits everyone.

Requirements

• You hold a Bachelor's or Master's Degree in Software Development, Computer Science, or other related fields.
• You have at least 3 years of professional experience with excellent command of Ruby and key ecosystem tools (RSpec, Bundler).
• Your level of English is advanced (C1) or above.
• Confident use of Git and standard Linux CLI tools.
• Hands‑on experience with containerization (Docker) and CI/CD pipelines (e.g., GitHub Actions, GitLab CI, Jenkins).
• Deep understanding of testing principles and test‑driven development (TDD); strong skills in debugging, profiling, and code optimization.
• Desirable: Contributions to open‑source Ruby projects (pull requests, code reviews, issue tracking).
• Experience working with large monorepositories or major open‑source projects.
• Experience with automated benchmarking, scripting, or infrastructure‑as‑code tools.
• Experience working with AI‑generated code or in code evaluation projects.
• Soft skills: Analytical and detail‑oriented mindset; concise and structured communication; strong ownership; adaptability and resilience; team player.
• Ready to learn new methods, switch between tasks and topics quickly, and sometimes work with challenging, complex guidelines.

Benefits

• Get paid for your expertise, with rates that can go up to $22/hour depending on your skills, experience, and project needs.
• Take part in a part‑time, remote, freelance project that fits around your primary professional or academic commitments.
• Work on advanced AI projects and gain valuable experience that enhances your portfolio.
• Influence how future AI models understand and communicate in your field of expertise.

Seniority Level

Mid‑Senior level

Employment Type

Part‑time

Job Function

Other

Industries

IT Services and IT Consulting