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Project Lion - Senior Prompt Engineer - Netherland (Remote, Part-Time)

WelocalizeNetherlandsData Validation
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Salary
Not listed
Job type
Freelance
Work mode
Remote
Posted
16 Mar 2026
Status
Open · checked 7d ago

About this role

Enterprise AI Training Data & Human is looking for a freelance Senior Prompt Engineer for Project Lion in the Netherlands. This remote, part-time position focuses on leading the technical migration workflow for transitioning templates to large language model autoraters. Ideal candidates will have a strong background in optimizing model performance through advanced prompting methods.

Role Overview

The Senior Prompt Engineer will manage the complete technical migration workflow required to shift standard templates over to large language model autoraters. Operating within the Data Validation department, this position centers on improving automated evaluation processes. The professional in this role will directly contribute to making AI evaluation pipelines more efficient and reliable from a remote setting in the Netherlands.

Key Responsibilities

Own the end-to-end technical migration workflow for moving templates to large language model autoraters.
Utilize proprietary internal tools provided by the client to design and refine instructions.
Apply expert prompting techniques to maximize overall model performance and accuracy.

Skills and Tools

Large Language Models (LLM)
Internal proprietary client systems and tools
Prompt engineering methodologies and optimization practices

About the Company

Enterprise AI Training Data & Human operates in the artificial intelligence sector, providing crucial training data and human-in-the-loop services to support advanced model development. The organization builds specialized infrastructure and workflows to help clients optimize machine learning systems. Through targeted initiatives like Project Lion, the company collaborates with skilled professionals across various global regions.

How to Apply

Interested candidates should visit the official company careers page at welodata.ai to submit an application for this freelance position.

Skills and tech stack

Questions candidates ask

What is the employment type for this role?

This position is offered on a freelance, part-time basis.

Where is the position located?

The job is based in the Netherlands and can be performed remotely.

What department does this role belong to?

This position is part of the Data Validation department.

What are the primary responsibilities?

The prompt engineer manages the end-to-end technical migration workflow for transitioning templates to large language model autoraters, utilizing internal tools to maximize model performance.

How can I apply for this job?

Candidates can apply directly through the official company careers page at welodata.ai.

Ready to apply?

The application is on the official Welocalize careers page.

Apply on company site