Cesar Zuniga

Key Skills

Software

Dataloop

V7 Labs

Appen

CloudFactory

CVAT

HiveMind

iMerit

Lionbridge

Mercor

Micro1

OneForma

Scale AI

Toloka

Telus

Top Subject Matter

AI Model Training & Evaluation

AI Model Training & Research

Top Data Types

Audio

Image

3D Sensor

Top Task Types

Data Collection

Bounding Box

Polygon

Segmentation

Classification

Entity (NER) Classification

Point/Key Point

Polyline

Cuboid

Object Detection

Text Generation

Question Answering

Text Summarization

RLHF

Fine-tuning

Red Teaming

Transcription

Evaluation/Rating

Computer Programming/Coding

Prompt + Response Writing (SFT)

Freelancer Overview

AI Trainer & Data Annotator. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Labelbox and Dataloop. Education includes Bachelor of Science, Florida State University. AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Data Collection.

Labeling Experience

AI Trainer & Data Annotator

LabelboxText

As an AI Trainer & Data Annotator at Alignerr, I created and refined training data for machine learning models. I evaluated and improved AI model responses through detailed assessment and feedback. I also performed edge-case testing and adversarial data generation to enhance model robustness. • Constructed high-signal training prompts and rewrites for data quality • Evaluated AI responses based on clarity, accuracy, and adherence to instructions • Designed and documented adversarial and edge-case test scenarios • Collaborated with AI teams to enhance safety and ethics in model behavior

As an AI Trainer & Data Annotator at Alignerr, I created and refined training data for machine learning models. I evaluated and improved AI model responses through detailed assessment and feedback. I also performed edge-case testing and adversarial data generation to enhance model robustness. • Constructed high-signal training prompts and rewrites for data quality • Evaluated AI responses based on clarity, accuracy, and adherence to instructions • Designed and documented adversarial and edge-case test scenarios • Collaborated with AI teams to enhance safety and ethics in model behavior

2023 - Present

AI Researcher

DataloopTextData Collection

As an AI Researcher at Dataloop, I managed AI data annotation and contributed to model improvement efforts. My responsibilities included optimizing data input strategies and ensuring dataset accuracy for training. I also collaborated with multi-disciplinary teams to refine AI models for specific uses. • Conducted detailed model performance evaluation • Oversaw and performed annotation tasks using Dataloop • Ensured integrity and accuracy of data for AI training • Assisted in optimizing and testing input data strategies

As an AI Researcher at Dataloop, I managed AI data annotation and contributed to model improvement efforts. My responsibilities included optimizing data input strategies and ensuring dataset accuracy for training. I also collaborated with multi-disciplinary teams to refine AI models for specific uses. • Conducted detailed model performance evaluation • Oversaw and performed annotation tasks using Dataloop • Ensured integrity and accuracy of data for AI training • Assisted in optimizing and testing input data strategies

2022 - 2023

Education

Work History