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Senior Backend Engineer (Python/FastAPI) for AI Evaluation

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Job details

Engagement

Contract, part-time

Location

Remote

United States only

Posted

Nov 6, 2026

OpenTrain on Trustpilot

The work

Create and improve software engineering examples used to train and benchmark AI models. Review the duties and qualifications below before applying.

  • Curate code examples and create precise solutions to software engineering tasks.
  • Correct AI-generated code using Python, JavaScript, React, Node.js, C/C++, Java, Rust, and Go.
  • Assess code architecture, efficiency, scalability, reliability, debugging, and maintainability.
  • Build agents and automated checks to verify code quality and find recurring errors.
  • Evaluate model performance across prototyping, architecture and API design, production implementation, monitoring, and ongoing operations.
  • Compare evaluation results with industry benchmarks.

Requirements

  • Time: 20 or more hours per week.
  • Engagement: Part-time contractor role for one month, with possible extensions based on performance and fit.
  • Required experience: At least three years in software engineering, with strong full-stack development experience using Python and JavaScript, including React and Node.js.
  • You should have experience deploying scalable, production-grade software and deep knowledge of software architecture, design, development, debugging, and code review.
  • Clear spoken and written communication is required to explain evaluation decisions.
  • Languages: 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: cmw4vd5br002l08l57hqb99ma

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