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Alexander Lebowitz

Alexander Lebowitz

AI Model Trainer (Freelance / Remote),DATA ANNOTATOR, DATA LABELER. LLM TRAINER.

USA flagN/A, Usa
$20.00/hrExpertLabelboxRoboflowScale AI

Key Skills

Software

LabelboxLabelbox
RoboflowRoboflow
Scale AIScale AI
MercorMercor
RemotasksRemotasks

Top Subject Matter

General AI Training
Computer Vision
Nlp Domain Expertise

Top Data Types

TextText
ImageImage
VideoVideo
AudioAudio
DocumentDocument

Top Task Types

Bounding Box
Segmentation
Classification
Entity Ner Classification
Object Detection
Transcription
Prompt Response Writing SFT
RLHF
Text Generation

Freelancer Overview

AI Model Trainer (Freelance / Remote). Brings 6+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Labelbox, Roboflow, and Remotasks. Education includes Bachelor of Arts, UCLA (2020) and Diploma, AIDRALabs (2024). AI-training focus includes data types such as Text, Image, and Video and labeling workflows including Classification, Bounding Box, and Segmentation.

ExpertEnglishSwahili

Labeling Experience

Labelbox

AI Model Trainer (Freelance / Remote)

LabelboxTextClassificationBounding Box
AI Model Trainer responsible for annotation and evaluation across diverse data types to enhance machine learning models. Consistently completed high-volume, high-accuracy labeling, evaluation, and validation tasks within large-scale projects. Conducted NLP evaluation, computer vision annotation, and AI chatbot training using specialized platforms and guidelines. • Labeled text, image, video, and audio datasets for supervised machine learning, NLP, and speech recognition systems. • Conducted bounding box, segmentation, classification, and transcription tasks using Labelbox, Roboflow, and Remotasks. • Evaluated AI and search engine outputs, ranked language samples, and simulated conversations for AI chatbot refinement. • Maintained rigorous quality standards and adhered to evolving project requirements across multiple annotation platforms.

AI Model Trainer responsible for annotation and evaluation across diverse data types to enhance machine learning models. Consistently completed high-volume, high-accuracy labeling, evaluation, and validation tasks within large-scale projects. Conducted NLP evaluation, computer vision annotation, and AI chatbot training using specialized platforms and guidelines. • Labeled text, image, video, and audio datasets for supervised machine learning, NLP, and speech recognition systems. • Conducted bounding box, segmentation, classification, and transcription tasks using Labelbox, Roboflow, and Remotasks. • Evaluated AI and search engine outputs, ranked language samples, and simulated conversations for AI chatbot refinement. • Maintained rigorous quality standards and adhered to evolving project requirements across multiple annotation platforms.

2021 - Present

Education

A

AIDRALabs

Diploma, Artificial Intelligence

Diploma
2026 - 2026
U

UCLA

Bachelor of Arts, Building Construction

Bachelor of Arts
2019 - 2021

Work History

I

IMC Logistics

Truck Driver

Agoura Hills
2023 - Present
C

Capital One

Dispatcher

Agoura Hills
2021 - 2022