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Carlos A.

Carlos A.

LLM Evaluator & RLHF Specialist

USA flagCollege Point, Usa

Key Skills

Software

Data Annotation TechData Annotation Tech

Top Subject Matter

AI Safety, Prompt Engineering & Large Language Model Evaluation
Creative Writing, Narrative Analysis & Literature

Top Data Types

TextText
ImageImage
VideoVideo

Top Task Types

Text GenerationText Generation
RLHFRLHF
Fine-tuningFine-tuning
Evaluation/RatingEvaluation/Rating
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
Question AnsweringQuestion Answering

Freelancer Overview

I have hands on experience in AI training, specializing in prompt engineering, model evaluation, and RLHF. My workflow involves auditing LLM responses against complex rubrics to ensure factual accuracy, strict formatting compliance, and visual scannability. I am skilled on testing model limitations, drafting detailed rationales for my evaluations, and delivering definitive recommendation verdicts based on strict platform guidelines.

Labeling Experience

Prompt Engineering & Response Scannability

TextTextPrompt + Response Writing (SFT)Prompt + Response Writing (SFT)

Designed and executed complex multi turn prompt strategies to explicitly test the limits, constraints, and edge cases of generative AI models. Audited the resulting model outputs for strict compliance with complex formatting constraints, visual scannability rubrics, and conciseness limitations. Provided objective model comparison data to optimize response formatting for end user readability.

2025 - 2026

Large Language Model (LLM) Truthfulness & Hallucination Auditing

TextTextRLHFRLHF

Evaluated high priority LLM responses against rigorous truthfulness and factuality rubrics. Analyzed multi turn model outputs to detect subtle contradictions, logical flaws, and factual hallucinations by cross referencing model assertions directly against provided source documentation. Authored highly detailed, rule compliant written rationales justifying preference verdicts to train reward models on output alignment.

2025 - 2026

Education

W

William Cullen Bryant High School

High School Diploma, Business, Accounting, Theatre Arts

High School Diploma
2012 - 2016

Work History

W

Walgreens

Shift Lead

College Point
2026 - Present
D

Data Annonation

AI Generalist

College Point
2025 - 2026