Skip to content
OpenTrain AIFor AI Companies

Senior Backend Engineer (Python/FastAPI) for AI Evaluation

Apply now

Job details

Engagement

Contract, part-time

Location

Remote

United States only

Posted

Nov 6, 2026

OpenTrain on Trustpilot

The work

Evaluate AI-generated code and software solutions using project guidelines. The title emphasizes Python/FastAPI backend engineering; review the duties and qualifications before applying.

  • Review source materials and model outputs against project guidelines.
  • Apply project rubrics and document evidence-based judgments.
  • Explain your evaluations clearly so the feedback can help improve AI models.
  • Keep your judgments consistent across repeated review tasks.

Requirements

  • Time: 20+ hours per week.
  • Skills: Strong Python and JavaScript skills, including React and Node.js, and the ability to work across backend and frontend codebases.
  • Knowledge: Software architecture, development, debugging, and code review, including assessing code quality and production software.
  • Communication: Clear spoken and written communication for structured evaluation explanations.
  • Language: Fluent in English.
  • Skills: Python, JavaScript, Java, C++, Rust

Open to applicants in

  • United States

How to apply

  1. Press Apply now. You create a free OpenTrain account and add your resume.
  2. Finish your application on the hiring company's site. The company decides who it hires, so it runs its own form.

Job ID: cmw4vd2hl002408l5vsdjoztr

Keep exploring

Similar open roles

View all AI training jobs

Senior Software Engineer DevOps

Build AWS automation, CI/CD pipelines, and security controls for LLM evaluation work. This US-based remote contract offers 20+ hours per week and pays $25 per label.

DevOps
Coding & Software
Computer Code Programming
Remote · United States
English
Part-time · Flexible
Per task · $25/label

Posted Nov 14, 2026

Junior Machine Learning Engineer

Complete coding-heavy AI training tasks involving machine learning models, Python, evaluation systems, and performance optimization. Work remotely for about 15 hours per week, with $60 to $120 per hour equivalent, paid per accepted task.

Machine Learning
Coding & Software
Computer Code Programming
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Per task · $60–$120/hr equivalent

Posted Nov 12, 2026

Software Engineer, AI Coding Task Creator

Create realistic bugs, features, refactoring, and performance tasks that test AI coding ability. This part-time contractor role pays $50 to $100 per hour equivalent, paid per task that meets project specifications.

Python3JAVARustAlgorithmsBasics C++Typescript
Coding & Software
Computer Code Programming
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Per task · $50–$100/hr equivalent

Posted Nov 11, 2026

Game Developer (Godot Expert)

Work remotely on AI training projects involving Godot game development, gameplay systems, and technical reviews. Earn $70 to $130 per hour with flexible weekly hours over 1 to 3 months.

GodotGame Development
Coding & Software
Computer Code Programming
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Hourly · $70–$130/hr

Posted Nov 11, 2026

Backend Software Engineer for AI Coding Tasks

Evaluate AI coding tasks using real repository code, technical rubrics, and clear written feedback. The role pays $50 to $100 per hour equivalent, paid per task that meets the project specifications, for about 15 hours per week.

Python3JAVARustAlgorithmsBasics C++Typescript
Coding & Software
Computer Code Programming
Remote · United Arab Emirates, Argentina, Austria +49 more
English
Part-time · Flexible
Per task · $50–$100/hr equivalent

Posted Nov 11, 2026