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Backend Developer - AI Trainer (Netherlands)

anyone-aiNetherlandsSoftware Engineering
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Salary
$25 – $50 per hour
Job type
Part-time
Work mode
Remote
Experience
Mid · 3+ yrs
Posted
14 Sept 2026
Status
Open · checked 7d ago

About this role

Based in the Netherlands and operating on a remote basis, the Backend Developer - AI Trainer position at anyone-ai involves project-based expert evaluation work and suits software engineering professionals with Python and JavaScript expertise. This part-time consultant role requires individuals to design, review, and evaluate complex software engineering tasks for an artificial intelligence laboratory project.

Role Overview

This remote, part-time consultancy focuses on expert evaluation work where participants control their schedule, provide their own tools, and can maintain other professional engagements. The contractor collaborates with an artificial intelligence lab to create, review, and validate realistic coding scenarios.

Key Responsibilities

Design and implement multi-file coding tasks covering bug fixing, feature development, refactoring, and testing.
Write clear natural-language specifications along with reference implementations.
Develop and extend unit and integration test suites.
Review tasks generated by peers for correctness, clarity, and realism.
Identify edge cases, ambiguities, and potential failure modes.
Ensure alignment between specifications, code, and expected outputs.

Requirements

Advanced professional written proficiency in English.
3 to 7 years of professional software engineering experience.
Strong proficiency in Python and JavaScript or TypeScript, with working knowledge of Java, C#, or Go.
Backend or full-stack development experience in production systems.
Experience using testing frameworks such as pytest, Jest, JUnit, xUnit, or Go testing.
Proven ability to debug and navigate large, multi-file codebases.
Experience handling code reviews, refactoring, and production migrations.

Skills and Tools

Python
JavaScript
TypeScript
Java
C#
Go
pytest
Jest
JUnit
xUnit
Go testing

Salary and Benefits

Compensation ranges from $25 to $50 per hour, paid on a per-project basis with hourly rates estimated from anticipated completion time.

About the Company

Anyone-ai recruits skilled backend developers to complete project-based assignments in collaboration with a leading artificial intelligence laboratory.

How to Apply

Interested candidates should apply on the official company careers page.

Skills and tech stack

PythonJavaScriptTypeScriptJavaC#GopytestJestJUnitxUnit

Questions candidates ask

Is this position remote?

Yes, the work type is remote for applicants in the Netherlands.

What is the employment type?

This is a part-time, project-based consultant role.

What is the compensation range?

The estimated pay is between $25 and $50 per hour, paid on a per-project basis.

How many years of experience are required?

Candidates must have 3 to 7 years of professional software engineering experience.

Can I work other jobs while doing this?

Yes, consultants control their own schedule and may simultaneously provide services to other vendors or employers, subject to those vendors' allowances.

Ready to apply?

The application is on the official anyone-ai careers page.

Apply on company site