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Sean Baker

AI Trainer & Language Specialist

ExpertLabelboxImeritScale AI

Key Skills

Software

LabelboxLabelbox
iMeritiMerit
Scale AIScale AI

Top Subject Matter

LLM Evaluation
Prompt Engineering
Linguistics Domain Expertise

Top Data Types

TextText
DocumentDocument

Top Task Types

Classification

Freelancer Overview

AI Trainer & Language Specialist. Core strengths include Labelbox, iMerit, and Scale AI. Education includes Bachelor of Science, Stanford University (2019) and Diploma, University of California, Berkeley (2021). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Classification.

Expert

Labeling Experience

Labelbox

AI Trainer & Language Specialist

LabelboxText
As an AI Trainer & Language Specialist, I evaluated large language models (LLMs) by conducting rigorous stress tests focused on English grammar and logic. I engineered prompts to identify edge cases and documented model failure points for use by engineers. My work improved model accuracy and linguistic precision in outputs.• Designed and rewrote prompts to reduce hallucinations • Provided reproducible debugging feedback for software teams • Applied academic English grammar principles to LLM evaluation • Focused on model behavior in both English and Swahili contexts

As an AI Trainer & Language Specialist, I evaluated large language models (LLMs) by conducting rigorous stress tests focused on English grammar and logic. I engineered prompts to identify edge cases and documented model failure points for use by engineers. My work improved model accuracy and linguistic precision in outputs.• Designed and rewrote prompts to reduce hallucinations • Provided reproducible debugging feedback for software teams • Applied academic English grammar principles to LLM evaluation • Focused on model behavior in both English and Swahili contexts

2023 - Present
Scale AI

English Language Reviewer

Scale AIText
As an English Language Reviewer, I evaluated AI-generated translations for international technology clients. My focus was on localization, ensuring regional appropriateness and native fluency in software products. The reviews directly influenced the accuracy and cultural relevance of AI translation tools.• Assessed AI translations for linguistic correctness • Prioritized local context over direct translation • Partnered with engineers to implement improvements • Maintained confidentiality in handling proprietary data

As an English Language Reviewer, I evaluated AI-generated translations for international technology clients. My focus was on localization, ensuring regional appropriateness and native fluency in software products. The reviews directly influenced the accuracy and cultural relevance of AI translation tools.• Assessed AI translations for linguistic correctness • Prioritized local context over direct translation • Partnered with engineers to implement improvements • Maintained confidentiality in handling proprietary data

2021 - Present
iMerit

Data Annotation Specialist

ImeritTextClassification
As a Data Annotation Specialist at iMerit, I categorized complex linguistic data for machine learning applications. I served as lead reviewer for English-Swahili datasets, ensuring perfect grammar standards. My annotations supported the development of accurate multilingual AI systems.• Oversaw classification and annotation of language data • Enforced standards for grammar in multilingual corpora • Collaborated with project managers to achieve labeling KPIs • Utilized annotation platforms for efficient workflow

As a Data Annotation Specialist at iMerit, I categorized complex linguistic data for machine learning applications. I served as lead reviewer for English-Swahili datasets, ensuring perfect grammar standards. My annotations supported the development of accurate multilingual AI systems.• Oversaw classification and annotation of language data • Enforced standards for grammar in multilingual corpora • Collaborated with project managers to achieve labeling KPIs • Utilized annotation platforms for efficient workflow

2022 - 2024

Education

U

University of California, Berkeley

Diploma, English Language and Grammar

Diploma
2020 - 2021
S

Stanford University

Bachelor of Science, Software Engineering

Bachelor of Science
2015 - 2019

Work History

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