Jose A.

Key Skills

Software

HiveMind

Kili Technology

Labelbox

Label Studio

Top Subject Matter

Machine Learning

AI Model Training

Dataset Preparation

Top Data Types

Text

Image

Document

Top Task Types

Classification

Object Detection

Entity (NER) Classification

Bounding Box

Freelancer Overview

Senior Data Annotation Quality Analyst. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. Education includes Master of Science, University of Houston (2016) and Bachelor of Science, Texas State University (2013). AI-training focus includes data types such as Text, Image, and Document and labeling workflows including Classification, Object Detection, and Entity (NER) Classification.

Labeling Experience

Senior Data Annotation Quality Analyst

TextClassificationObject Detection

As a Senior Data Annotation Quality Analyst, I conducted high-volume annotation and labeling of text, image, and structured datasets for machine learning applications. I performed rigorous quality control and collaborated with machine learning engineers to improve annotation procedures. I developed quality assurance documentation and reviewed outputs from junior annotators to ensure consistency and compliance. • Performed annotation and quality control on large datasets • Implemented structured workflow processes for the data team • Developed Python and SQL scripts for data validation • Improved annotation accuracy and reduced turnaround times.

2021 - Present

Data Annotation Specialist

TextClassificationObject Detection

As a Data Annotation Specialist, I annotated and categorized large datasets including text, image, and metadata content according to project specifications. I conducted quality assurance checks and provided mentorship to new annotators. I utilized SQL to retrieve and validate datasets and maintained detailed process documentation. • Maintained consistent annotation accuracy above 97% • Trained and onboarded new team members in annotation tools • Participated in successful AI data preparation projects • Worked on quality benchmarks and issue tracking documentation.

2018 - 2020

AI Text Classification Annotation Project Contributor

TextClassificationEntity (NER) Classification

I participated in a large-scale AI Text Classification Annotation Project to train NLP models. I reviewed and labeled thousands of text records following detailed classification guidelines. I collaborated with data scientists to resolve ambiguous scenarios and ensure label consistency. • Extensive text labeling for NLP • Quality review of complex scenarios • Interaction with data science teams • Focus on high data consistency.

2021

Computer Vision Image Annotation Project Contributor

ImageBounding BoxObject Detection

I contributed to a Computer Vision Image Annotation Project by annotating image datasets for object detection and classification. I performed quality checks to ensure label accuracy and bounding box precision. I assisted in annotation standardization and documentation. • Annotated images for object detection • Conducted quality assurance on annotations • Helped standardize documentation • Ensured labeling precision and accuracy.

2020

Education

Work History