Valeria F.

Key Skills

Software

Sama

CloudFactory

Appen

Clickworker

CVAT

Data Annotation Tech

Dataloop

iMerit

Labelbox

Label Studio

Micro1

Mercor

Mindrift

OneForma

Remotasks

Snorkel AI

Toloka

Telus

Top Subject Matter

AI Model Development

Data Processing

Platform Functionality

Top Data Types

Text

3D Sensor

Image

Top Task Types

Fine-tuning

Segmentation

Classification

Bounding Box

Polygon

Object Detection

Text Generation

Text Summarization

RLHF

Transcription

Evaluation/Rating

Question Answering

Freelancer Overview

I’m a professional with over six years of experience in data labeling, annotation, and AI training data operations across industries, including autonomous systems, sports analytics, finance, and geospatial analysis. I have worked with organizations such as Invisible Technologies Inc., Samasource, and CloudFactory Kenya, where I contributed to building high-quality datasets used to train and improve machine learning models. My expertise includes 2D and 3D LiDAR annotation, image and video labeling, dataset reconciliation, data extraction, quality assurance, and AI model fine-tuning using no-code platforms. I have always maintained high accuracy standards while meeting strict project deadlines in fast-paced production environments. What sets me apart is my strong attention to detail, adaptability, and ability to quickly learn new annotation tools and workflows. I have experience collaborating with data analysts, engineers, and quality assurance teams to ensure reliable and scalable AI training data. In addition to annotation work, I have supported projects involving soccer footage analysis, aerial imagery annotation for urban planning, and financial data processing. My experience, combined with certifications in AI and Virtual Assistance, gives me a unique blend of analytical thinking, organization, and problem-solving skills that contribute to high-quality AI data operations.

Labeling Experience

Operator – Invisible Technologies Inc.

TextFine-tuning

Contributed to the development and fine-tuning of AI models using no-code platforms. Extracted, organized, matched, and reconciled data from diverse sources to ensure consistency and reliability. Provided structured feedback for continuous improvement of platform functionality. • Conducted data reconciliation across sources for accuracy. • Enhanced system efficiency and accuracy through process improvements. • Managed large datasets for structured AI-ready output. • Improved accessibility of client data through meticulous processing.

2025 - Present

AI Data Annotation Associate – Samasource

Sama3D SensorSegmentation

Annotated images and video in 2D and 3D LiDAR data using specific guidelines and technical requirements. Classified, reviewed, and verified annotated data to enhance the quality of machine learning datasets. Identified and resolved data quality issues to strengthen model reliability. • Applied new annotation techniques to improve efficiency. • Maintained adherence to data work techniques and thresholds. • Purged duplicate files and corrected erroneous data entries. • Collaborated closely to meet high data integrity standards.

2023 - 2025

Data Specialist – CloudFactory Kenya

CloudFactoryImageClassification

Annotated soccer game video footage to support the development of computer vision applications in sports analytics. Labeled aerial and geospatial imagery for urban planning and mapping projects. Processed financial datasets for precise reporting and business analysis. • Aided detailed mapping through imagery annotation. • Enhanced sports analytics via accurate video labeling. • Maintained data consistency and completeness in financial reporting. • Improved analysis capabilities for organizational projects.

2020 - 2023

Education

Work History