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Matthew Pearsall

Matthew Pearsall

AI Model Trainer

USA flagCambridge, Usa
ExpertOther

Key Skills

Software

Other

Top Subject Matter

Biotech Domain Expertise
Math Domain Expertise
Literature Domain Expertise

Top Data Types

TextText
AudioAudio
DocumentDocument

Top Task Types

RLHFRLHF
ClassificationClassification

Freelancer Overview

AI Model Trainer. Brings 20+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and Other. Education includes Bachelor of Science, Ithaca College (2006). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and RLHF.

Expert

Labeling Experience

AI Model Trainer

Text
As an AI Model Trainer at RWS, I contributed to the evaluation and refinement of AI-generated responses. I reviewed and rated outputs to improve language models' performance and reliability. My work focused on multiple academic domains, including biotech, math, and literature. • Evaluated AI outputs for precision and creativity • Provided feedback for model improvement • Maintained quality standards throughout assessments • Leveraged subject expertise for nuanced reviews

As an AI Model Trainer at RWS, I contributed to the evaluation and refinement of AI-generated responses. I reviewed and rated outputs to improve language models' performance and reliability. My work focused on multiple academic domains, including biotech, math, and literature. • Evaluated AI outputs for precision and creativity • Provided feedback for model improvement • Maintained quality standards throughout assessments • Leveraged subject expertise for nuanced reviews

2025 - Present

Test Scorer

OtherTextClassification
As a Test Scorer at Data Recognition Corporation, I evaluated and labeled student-written essays and biology responses according to state educational standards. Both third-grade writing and high school biology assessments required application of rubrics and detailed feedback. The role helped maintain assessment quality and integrity across large datasets. • Classified and scored test responses in two subject areas • Ensured consistency in evaluation with detailed notes • Managed large volumes of student work • Supported state-level assessment goals through data annotation

As a Test Scorer at Data Recognition Corporation, I evaluated and labeled student-written essays and biology responses according to state educational standards. Both third-grade writing and high school biology assessments required application of rubrics and detailed feedback. The role helped maintain assessment quality and integrity across large datasets. • Classified and scored test responses in two subject areas • Ensured consistency in evaluation with detailed notes • Managed large volumes of student work • Supported state-level assessment goals through data annotation

2025 - 2025

AI Model Trainer

TextRLHF
As an AI Model Trainer at Alignerr, I performed reinforcement learning from human feedback tasks to optimize AI model outputs. My responsibilities included recording prompt audio and critically analyzing the model’s audio responses for accuracy and fidelity. The work required close attention to the effectiveness of AI learning from human feedback. • Conducted RLHF to fine-tune model behaviors • Evaluated and annotated prompt-response cycles • Analyzed audio outputs for correctness • Applied domain expertise in biotechnology and communication

As an AI Model Trainer at Alignerr, I performed reinforcement learning from human feedback tasks to optimize AI model outputs. My responsibilities included recording prompt audio and critically analyzing the model’s audio responses for accuracy and fidelity. The work required close attention to the effectiveness of AI learning from human feedback. • Conducted RLHF to fine-tune model behaviors • Evaluated and annotated prompt-response cycles • Analyzed audio outputs for correctness • Applied domain expertise in biotechnology and communication

2024 - 2025

Test Scorer

OtherTextClassification
As a Test Scorer at Data Recognition Corporation, I classified and evaluated written student responses for statewide exams. My subjects included high school geometry and algebra for Louisiana and Pennsylvania. The task demanded accurate scoring based on standardized rubrics and detailed annotation of student responses. • Scored individual student answers for math accuracy • Applied complex rubrics to diverse response types • Ensured objective and consistent scoring practices • Identified trends in student understanding for reporting

As a Test Scorer at Data Recognition Corporation, I classified and evaluated written student responses for statewide exams. My subjects included high school geometry and algebra for Louisiana and Pennsylvania. The task demanded accurate scoring based on standardized rubrics and detailed annotation of student responses. • Scored individual student answers for math accuracy • Applied complex rubrics to diverse response types • Ensured objective and consistent scoring practices • Identified trends in student understanding for reporting

2024 - 2024

Data Analyst

TextClassification
At Alexa Data Services/Amazon, I processed and labeled customer data for use in AI and voice recognition algorithms. This involved categorizing, tagging, and validating textual data to support the Alexa AI device’s training. Careful attention to accuracy and label consistency was essential to the project’s success. • Labeled and annotated large volumes of customer text data • Supported AI training for voice assistant products • Maintained labeling accuracy under tight timelines • Adhered to privacy and security requirements

At Alexa Data Services/Amazon, I processed and labeled customer data for use in AI and voice recognition algorithms. This involved categorizing, tagging, and validating textual data to support the Alexa AI device’s training. Careful attention to accuracy and label consistency was essential to the project’s success. • Labeled and annotated large volumes of customer text data • Supported AI training for voice assistant products • Maintained labeling accuracy under tight timelines • Adhered to privacy and security requirements

2017 - 2017

Education

I

Ithaca College

Bachelor of Science, Chemistry

Bachelor of Science
2006 - 2006

Work History

T

ThermoFisher

Sr. Site Specialist

Cambridge
2021 - 2022
P

Procter & Gamble

Lab Technician

Boston
2021 - 2021