Keandre A.

Key Skills

Software

Labelbox

Appen

Top Subject Matter

Autonomous Vehicles

Nlp Domain Expertise

Conversational AI

Top Data Types

Image

Audio

Text

Document

Top Task Types

Bounding Box

Transcription

Classification

Freelancer Overview

Senior Data Annotator | Nexus AI Solutions. Brings 8+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Labelbox, DataForce by TransPerfect, and Appen. Education includes Associate of Applied Science, Georgia Piedmont Technical College (2019). AI-training focus includes data types such as Image and Audio and labeling workflows including Bounding Box, Transcription, and Classification.

Labeling Experience

Senior Data Annotator

LabelboxImageBounding Box

As Senior Data Annotator at Nexus AI Solutions, I annotated and labeled large volumes of image, text, and video data for ML and AI model training. I performed advanced annotations such as bounding box, semantic segmentation, keypoint, and polygon labeling using specialized software. My work contributed directly to high-quality autonomous vehicle datasets and team-wide QA improvements. • Managed annotation pipelines for computer vision and NLP projects. • Consistently scored 98%+ in annotation quality. • Led QA review cycles to ensure inter-rater reliability above 0.92 kappa. • Contributed to production-ready dataset of over 500,000 images.

2022 - Present

Data Labeling Specialist

AppenAudioTranscription

As a Data Labeling Specialist at DataForce by TransPerfect, I labeled and transcribed audio and text records for AI-driven projects. I contributed to conversational AI, sentiment analysis, and NER, while ensuring compliance with HIPAA data guidelines. I maintained high accuracy in large scale annotation workflows for Fortune 500 clients. • Processed 800+ text records per day with 97% accuracy. • Contributed to healthcare AI projects with strict compliance. • Participated in calibration sessions for annotation consistency. • Recognized as top annotator for three consecutive quarters.

2020 - 2022

Crowdsource Data Contributor

AppenImageClassification

As a Crowdsource Data Contributor for Appen and Amazon MTurk, I performed image classification, sentiment labeling, and data validation tasks. My primary responsibilities included image tagging, object detection, and relevance ranking for AI model training in retail and e-commerce. I maintained high quality standards throughout more than 10,000 completed tasks. • Completed pre-labeling for object detection. • Achieved 4.9/5.0 average rating on Amazon MTurk. • Supported retail and e-commerce datasets for AI training. • Delivered image tagging and classification at scale.

2019 - 2020

Education

Work History