Christian E.

Key Skills

Software

Labelbox

Other

Appen

Top Subject Matter

Computer vision (autonomous driving, medical imaging, e-commerce)

Speech recognition and NLP (sentiment, intent, topic, NER)

General image labeling for client datasets

Top Data Types

Image

Audio

Text

Document

Top Task Types

Segmentation

Transcription

Classification

Freelancer Overview

Senior Data Annotation Specialist — DataBridge AI Solutions. Brings 8+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Labelbox, Other, and Appen. Education includes Higher National Diploma, N/A. AI-training focus includes data types such as Image and Audio and labeling workflows including Segmentation, Transcription, and Classification.

Labeling Experience

Senior Data Annotation Specialist — DataBridge AI Solutions

LabelboxImageSegmentation

Annotated large-scale image and video datasets to support computer vision model training while maintaining accuracy above 98%. Produced semantic segmentation labels, object detection bounding boxes, and keypoint annotations for downstream ML use. Performed QA review of peer annotations and corrected inconsistencies to keep dataset quality within project standards. • Semantic segmentation labeling • Bounding box and keypoint annotation • QA review and inconsistency correction • Cross-project guideline collaboration

2022 - Present

Data Labelling Analyst — CloudLabel Technologies

OtherAudioTranscription

Transcribed and tagged audio files to train speech recognition models with consistent high accuracy (around 99%). Classified and labeled text datasets for sentiment analysis, intent detection, and topic categorization across multiple English variants. Conducted NER tagging for legal, financial, and healthcare documents under strict data confidentiality agreements. • Audio transcription and tagging • Text classification for sentiment/intent/topic • NER entity labeling • Compliance-focused labeling for sensitive documents

2020 - 2022

Junior Data Annotator (Contract) — Freelance

AppenImageClassification

Performed image classification and tagging tasks for client projects as a junior annotator on remote contract work. Followed detailed project-specific annotation instructions to maintain high acceptance rates. Delivered labeled outputs to support downstream dataset construction for client needs. • Image classification • Image tagging • Instruction-following compliance • High acceptance performance

2019 - 2019

Education

Work History