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

Create and assess software engineering examples used to train and benchmark AI models. Apply production software judgment to code tasks focused on systems, infrastructure, performance, scale, and reliability.

  • Curate code examples, write solutions, and correct code in Python, C/C++, Rust, Go, Java, and JavaScript, including ReactJS.
  • Review AI-generated code for correctness, efficiency, scalability, reliability, and performance.
  • Build agents and automated checks to verify systems and infrastructure code, and identify recurring errors.
  • Assess model abilities across prototyping, architecture, API design, production implementation, monitoring, and operational maintenance.
  • Write and explain clear, structured evaluations in writing and orally.

Requirements

  • Hours: 20+ per week, with a flexible schedule.
  • Engagement: Part-time contractor role, initially one month, with potential extensions.
  • Skills: Strong expertise in systems programming, infrastructure, or backend development; experience building and deploying scalable, production-grade software; and knowledge of software architecture, design, development, debugging, and code review.
  • Programming: Practical proficiency in one or more relevant languages, including Python, C/C++, Rust, Go, Java, or JavaScript.
  • Languages: English
  • Skills: Python, JavaScript, Java, C++, Rust

Open to applicants in

  • United States

Preferred

  • A computer science education can be helpful, but demonstrated technical ability matters more.

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: cmw4vd4zn002h08l5q0jnr275

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