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Open-Source Engineer

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Job details

Pay

$100–$150 USD/hr

equivalent, paid per accepted task

Engagement

Contract, part-time

Location

Remote

2 countries

Posted

Sep 16, 2026

OpenTrain on Trustpilot

The work

You will create, solve, review, and validate software-engineering tasks used to train AI systems. The work covers front-end and back-end code, unfamiliar repositories, debugging, testing, and review of AI-generated patches.

Before applying, review the duties and qualifications to make sure they match your background and portfolio.

  • Explore unfamiliar software repositories and trace data and execution across interfaces, services, libraries, APIs, databases, and external dependencies.
  • Build and debug front-end and back-end components that fit existing architectures and contribution standards.
  • Reproduce software issues, find their underlying causes, and implement solutions.
  • Translate complete coding builds from one programming language into another.
  • Write unit, integration, regression, and end-to-end tests.
  • Review AI-generated patches for correctness, completeness, security, and maintainability.

Requirements

This is a part-time contractor role for an open source contributor and software engineer. It is fully remote with flexible scheduling, including the option to work weekends when needed.

  • Time: Approximately 15 hours per week, or less than 20 hours per week.
  • Language: Professional fluency in English.
  • GitHub: A public or otherwise verifiable GitHub profile with meaningful ownership of or contributions to one or more open-source repositories.
  • Engineering background: Strong experience in front-end, back-end, full-stack, systems, developer tooling, infrastructure, or another substantial technical area.
  • Programming: Experience with multiple languages such as TypeScript, JavaScript, Python, Java, Go, Rust, C++, C#, or Ruby.
  • Portfolio: Substantive authored code, not only documentation updates, dependency changes, formatting work, or minor corrections.
  • Technical ability: Understand and modify unfamiliar codebases.
  • Experience: Mid-Senior level
  • Skills: Python3, JAVA, Rust, Basics C++, Typescript, GoLang

Open to applicants in

  • India
  • 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. It asks for your resume again, your LinkedIn profile, your phone number, your location and answers to 8 screening questions.
  3. Take a short AI interview with a coding challenge.

OpenTrain on Trustpilot

Job ID: cmu4m3me8002c0bgm9gb9wb40

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