David O.

Key Skills

Software

Appen

Top Subject Matter

Machine Learning and model training data annotation (image/text/audio)

Machine Learning and Natural Language Processing training data annotation

Social media evaluation and misinformation assessment

Top Data Types

Image

Text

Document

Top Task Types

Classification

Transcription

Freelancer Overview

INDEPENDENT CONTRACTOR — APPEN (Data Annotation). Brings 10+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Appen. Education includes Bachelor of Engineering, Caritas University (2018) and Google Data Analytics Certificate, Coursera (2023). AI-training focus includes data types such as Image and Text and labeling workflows including Classification, Transcription, and Evaluation.

Labeling Experience

INDEPENDENT CONTRACTOR — APPEN (Social media evaluation)

AppenText

Evaluated social media content for accuracy to support moderation and misinformation detection tasks. Assessed content across multiple Meta platforms and categorized items according to project evaluation criteria. Identified trends in reviewed content to assist with labeling outcomes. • Evaluated Facebook, Instagram, and Threads content • Debunked inaccurate or false information • Performed content accuracy ratings • Tracked and reported recurring trends

2023 - 2024

INDEPENDENT CONTRACTOR — APPEN (Data Annotation)

AppenImageClassificationTranscription

Performed image labeling for machine learning model training under independent contractor work. Applied quality-focused annotation practices to support downstream model performance and evaluation. Coordinated labeling tasks aligned with project requirements and annotation guidelines. • Labeled image data for ML/NLP training • Followed annotation instructions and consistency checks • Supported model training data preparation • Completed assigned labeling tasks within timelines

2023 - 2024

Education

Work History