Senior Full-Stack Engineer for AI Training — Remote

3It; Santiago; Remote; CLP 81,354,000 - 122,031,000; Part time

Job summary

3It is seeking an experienced Sr. Full-Stack Software Engineer to support an AI training project. This remote contractor role (~15 hours/week) requires strong skills in Python, React, JavaScript, and modern back-end technologies.

You will work across frontend and backend, APIs, services, data models, and code evaluation to ensure quality and security. The ideal candidate can navigate unfamiliar codebases, translate builds between languages, and troubleshoot complex issues while delivering robust

Qualifications

• Strong full-stack development experience.
• Experience with APIs, databases, and debugging.
• Able to understand and work across unfamiliar codebases.
• Ability to review AI-generated code for correctness, security and performance.

Responsibilities

• Develop and debug front-end and back-end applications.
• Build features, APIs, services, and data models.
• Understand and work across unfamiliar codebases.
• Troubleshoot application, API, database, and integration issues.
• Review and evaluate AI-generated code for correctness, security, performance, and maintainability.
• Translate and adapt software builds between programming languages.

Skills

Python

React

JavaScript

Java

Node.js

Rust

Go

TypeScript

Full-stack development

APIs

Databases

Application architecture

Debugging

Job description

3It is seeking an experienced Sr. Full-Stack Software Engineer to support an AI training project. This remote contractor role (~15 hours/week) requires strong skills in Python, React, JavaScript, and modern back-end technologies.

You will work across frontend and backend, APIs, services, data models, and code evaluation to ensure quality and security. The ideal candidate can navigate unfamiliar codebases, translate builds between languages, and troubleshoot complex issues while delivering robust