All roles

Ruby - Software Engineer, AI

Remote · USA Full-time New today

Before applying This role is open to contractors in accepted locations only. Please confirm your country is on the list before applying — we're unable to process applications from unlisted locations. List of accepted countries and locations. For US applicants This is a 1099 independent contractor role. It is not compatible with F-1 OPT, STEM OPT, or any visa status that requires W-2 employment, guaranteed hours, or employer sponsorship. We are unable to provide offer letters or employment verification for this role. What You'll Be Doing Help train large language models (LLMs) to write production-grade code across a wide range of programming languages:

  • Compare and rank multiple code snippets, explaining which is best and why
  • Repair and refactor AI-generated code for correctness, efficiency, and style
  • Inject feedback (ratings, edits, test results) into the RLHF pipeline and keep it running smoothly

End result: the model learns to propose, critique, and improve code the way you do. RLHF in one line: Generate code expert engineers rank, edit, and justify convert that feedback into reward signals reinforcement learning tunes the model toward code you'd actually ship. What You'll Need

  • 3+ years of professional software engineering experience in Ruby (constraint programming experience is a bonus, but not required)
  • Strong code-review instincts — you can spot logic errors, performance traps, and security issues quickly
  • Extreme attention to detail and excellent written communication skills. Much of this role involves explaining why one approach is better than another. This cannot be overstated.
  • Comfortable reading documentation and language specs, and able to work well in an asynchronous, low-oversight environment

Identity verification: Applicants will be required to verify their identity and confirm they have valid documentation to work as an independent contractor in their country of residence. What You Don't Need

  • No prior RLHF or AI training experience

Logistics

  • Location: Fully remote — work from anywhere on the accepted locations list
  • Compensation: $30–$70/hr based on location and seniority. Note: the majority of projects run at around $30/hr — higher rates apply to senior profiles and specific project types
  • Hours: Minimum 15 hrs/week, up to 40+ hrs/week available — hours vary by project and are not guaranteed week to week
  • Engagement: 1099 independent contractor
  • Payment: Weekly via PayPal or Stripe

Important: Hours are project-dependent and can vary week to week. We recommend keeping other work options open alongside this engagement rather than relying on it as your sole source of income. Apply tot his job Apply To this Job

Related roles

Ruby on Rails Developer - LLM

Remote · USA Full-time

Senior Software Engineer (Ruby on Rails - SEO)

Remote · USA Full-time

Implementation Specialist, Multilingual – Brazilian Portuguese/Spanish/English

Remote · USA Full-time

Enterprise Account Executive - Marketing SaaS - Remote

Remote · USA Full-time

Senior Account Executive (SaaS Customer Experience) – USA – Remote

Remote · USA Full-time

SMB Account Executive – AI SaaS (Remote, U.S.)

Remote · USA Full-time

Outbound SaaS Account Executive (Remote)

Remote · USA Full-time

[Remote] US Customer Success Manager (SaaS, Higher Ed)

Remote · USA Full-time

Customer Success Associate (USA Only - 100% Remote)

Remote · USA Full-time

Senior Customer Success Manager | US Remote

Remote · USA Full-time

Manager, Treasury Operations, EMEA

Remote · USA Full-time

Experienced Data Entry Customer Service Representative – Remote Work Opportunity at arenaflex

Remote · USA Full-time

Database and Systems Administrator

Remote · USA Full-time

Landfill Heavy Equip Operator

Remote · USA Full-time

Spec,Coding

Remote · USA Full-time

Fellowship Trained Radiologist

Remote · USA Full-time

(Remote) Data Entry Work From Home / Research Panelist

Remote · USA Full-time

(Part Time / Work From Home) Amex Virtual Assistant Job

Remote · USA Full-time

Entry-Level Remote Customer Service Representative – Travel Support Specialist at arenaflex (Flexible Work‑from‑Home)

Remote · USA Full-time

Experienced Global Customer Solutions Specialist – Remote

Remote · USA Full-time