Esien Efiom

Key Skills

Software

Appen

Clickworker

Labelbox

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Document

Image

Text

Video

Top Label Types

Audio Recording

Segmentation

Text Generation

Transcription

Translation Localization

Freelancer Overview

I am a detail-oriented Computer Science graduate with hands-on experience as a remote AI Trainer and Data Annotator, specializing in Natural Language Processing (NLP) and Large Language Models (LLMs). My expertise includes evaluating and ranking AI-generated responses for accuracy, relevance, and safety, as well as designing and optimizing prompts to improve model performance. I am skilled in data annotation, reinforcement learning from human feedback (RLHF), and identifying hallucinations, bias, and policy violations to ensure high-quality AI outputs. I have worked on independent projects involving A/B testing, dataset creation, and evaluation rubric improvements, and I am proficient with tools such as Python (Pandas, NumPy), SQL, Excel, Google Sheets, Git, and collaboration platforms like Slack and Jira. With a strong analytical mindset and a commitment to maintaining high accuracy standards, I thrive in remote and fast-paced AI environments.

Labeling Experience

Healthcare Technology Data Transcription & Annotation Project

AppenAudioSegmentationTranscription

Transcribed and annotated large-scale speech datasets to support ASR and NLP model training. Performed timestamp alignment, speaker segmentation, NER tagging, intent classification, and sentiment labeling. Processed 5,000+ audio files (800+ hours) with 96%+ QA accuracy.

Transcribed and annotated large-scale speech datasets to support ASR and NLP model training. Performed timestamp alignment, speaker segmentation, NER tagging, intent classification, and sentiment labeling. Processed 5,000+ audio files (800+ hours) with 96%+ QA accuracy.

2024 - 2025

Education

Work History