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Full-Stack Developer - AI Trainer (Netherlands)

Anyone AI

Amsterdam
Contractor
5-10 years experience
Remote Only

$45 - $80

Key Skills

Python
JavaScript
TypeScript
Java
C#
Go
Backend Development
Full-Stack Development
Pytest
Jest
JUnit
xUnit
Go Testing
Code Review
Refactoring
Debugging

Job Description

Anyone AI is recruiting skilled Full-Stack Developers to work on a project with a leading AI lab.

Qualifications:

  • Advanced professional written proficiency in English

  • 3–7 years of professional software engineering experience

  • Strong proficiency in Python and JavaScript/TypeScript; working knowledge of Java, C#, or Go

  • Backend or full‑stack development experience in production systems

  • Experience with testing frameworks (e.g., pytest, Jest, JUnit, xUnit, Go testing)

  • Proven ability to debug and navigate large, multi‑file codebases

  • Experience with code reviews, refactoring, and production migrations

Engagement: Part-time, project-based expert evaluation work

Work Type: Remote

Contributors will design and evaluate realistic software engineering tasks, including bug resolution, feature implementation, refactoring/migration, and test generation. Work includes both creating complex coding scenarios and reviewing peer submissions for quality and accuracy.

This is a project-based consultant role. Consultants will be paid on a per-project basis; hourly rates are estimates based on anticipated completion time. Consultants control their own schedule, provide their own tools, and may simultaneously provide services to other vendors/employers (subject to those vendors’ allowances).

Responsibilities:

Contributors will:

  • Design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing

  • Write clear natural-language specifications and reference implementations

  • Develop and extend unit and integration test suites

  • Review peer-generated tasks for correctness, clarity, and realism

  • Identify edge cases, ambiguities, and potential failure modes

  • Ensure alignment between specifications, code, and expected outputs

Expected Outcomes:

  • High-quality, production-realistic coding tasks

  • Complete and correct reference implementations

  • Robust test coverage and validation artifacts

  • Structured, actionable peer review feedback

Core Responsibilities

Design and implement complex multi-file coding tasks including bug fixes, feature development, and testing. Review peer-generated tasks for accuracy and create high-quality reference implementations.

Requirements

Requires 3-7 years of professional software engineering experience with strong proficiency in Python and JavaScript/TypeScript. Must have experience with production systems, testing frameworks, and navigating large codebases.

About Anyone AI

Industry: Technology, Information and Internet

Company size: 2-10 employees

Our mission is to leverage the power of AI to make unique avatars for you and your friends. ‍ We want to create a new layer of positive connection between people, everyday.

Added 3 months ago