For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
M
Mariela Pineda

Mariela Pineda

Freelancer

United Kingdom flagLondon, United Kingdom
$18.00/hrEntry LevelOther

Key Skills

Software

Other

Top Subject Matter

General AI Language Models
E-commerce - Product Categorization & Customer Support
Content Creation

Top Data Types

TextText

Top Task Types

No task types listed

Freelancer Overview

Freelance AI Trainer (Data Annotation, Outlier). Brings 8+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Arts, King’s College London (2018). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Entry LevelEnglishSpanish

Labeling Experience

Freelance AI Trainer (Data Annotation, Outlier)

OtherText
In this freelance AI Trainer role, I evaluated AI-generated responses and created criteria to assess their performance. I rated model outputs for accuracy, tone, and alignment with user intent to enhance data quality. My responsibilities included reviewing the work of other contributors and providing detailed feedback. • Applied a high level of detail to optimize AI prompt testing. • Consistently ranked in the top 10% of project contributors. • Offered feedback that improved model performance and future training. • Helped set evaluation benchmarks and standards for AI response quality.

In this freelance AI Trainer role, I evaluated AI-generated responses and created criteria to assess their performance. I rated model outputs for accuracy, tone, and alignment with user intent to enhance data quality. My responsibilities included reviewing the work of other contributors and providing detailed feedback. • Applied a high level of detail to optimize AI prompt testing. • Consistently ranked in the top 10% of project contributors. • Offered feedback that improved model performance and future training. • Helped set evaluation benchmarks and standards for AI response quality.

2025 - Present

Education

K

King’s College London

Bachelor of Arts, Philosophy

Bachelor of Arts
2015 - 2018

Work History

M

Microsoft

Web Sales and Support Agent

London
2021 - 2024
P

Peige

Creator

London
2020 - 2023