Steven N.

Key Skills

Software

Scale AI

Appen

Top Subject Matter

Computer vision and NLP dataset annotation

Speech recognition and NLP sentiment/language classification

Autonomous systems (video/image labeling) and deep learning dataset preparation

Top Data Types

Image

Audio

Video

Top Task Types

Segmentation

Transcription

Object Detection

Freelancer Overview

Senior AI Data Labeling Specialist at Scale AI (computer vision + NLP annotation and QA). Core strengths include Scale AI, Appen, and Lionbridge Technologies. Education includes Doctor of Philosophy, MIT (2013) and Master of Science, MIT (2007). AI-training focus includes data types such as Image, Audio, and Video and labeling workflows including Segmentation, Transcription, and Object Detection.

Labeling Experience

Senior AI Data Labeling Specialist at Scale AI (computer vision + NLP annotation and QA)

Scale AIImageSegmentation

Provided annotation leadership for computer vision and NLP datasets, with a focus on segmentation-driven tasks. Performed quality assurance and validation to ensure labeled dataset reliability. Partnered with machine learning engineers to support improved AI model accuracy. • Managed image segmentation labeling for computer vision datasets • Oversaw object detection and text classification tasks • Conducted QA and validation of labeled outputs • Trained junior annotators on labeling guidelines and best practices

2019 - 2024

Machine Learning Data Analyst at Appen (speech + multilingual NLP annotation)

AppenAudioTranscription

Annotated large-scale datasets used for speech recognition and AI training. Conducted sentiment analysis and language data classification to support NLP model development. Improved data consistency and annotation precision across multilingual projects. • Annotated speech recognition datasets for AI training • Performed sentiment analysis and language classification • Enhanced annotation precision and label consistency • Worked on multilingual labeling initiatives

2016 - 2019

AI Research & Annotation Consultant at Lionbridge Technologies (annotation support for AI research)

VideoObject Detection

Provided high-quality annotations that supported AI research and deep learning dataset preparation. Labeled video and image data for autonomous systems to enable downstream model training. Developed documentation and annotation workflows to improve consistency. • Performed video and image labeling for autonomous systems • Assisted with dataset preparation for deep learning applications • Created documentation and annotation workflows • Supported AI research teams with annotation delivery

2013 - 2016

Education

Work History