Shadrack O.

Key Skills

Software

Scale AI

Appen

Top Subject Matter

LLM training

sentiment analysis

Ner Domain Expertise

Top Data Types

Text

Image

Document

Top Task Types

Data Collection

Transcription

Freelancer Overview

AI Data Trainer & Quality Analyst — Scale AI (Remote). Brings 5+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Scale AI and Appen. Education includes Bachelor of Arts, Kabarak University (2018) and High School Diploma, St. Josephs High School Kitale (2014). AI-training focus includes data types such as Text and Image and labeling workflows including Evaluation, Rating, and Data Collection.

Labeling Experience

AI Data Trainer & Quality Analyst — Scale AI (Remote)

Scale AIText

Trained and evaluated large language models by working on daily annotation tasks for major tech clients. Performed sentiment analysis and entity recognition while scoring prompt responses to assess model output quality. Improved error rates by 35% through consistent evaluation and feedback loops. • Labeled 2,500+ data points daily and maintained high accuracy • Conducted sentiment analysis and entity recognition • Scored prompt responses for quality and reduced errors • Collaborated with global teams to refine training guidelines

2023 - Present

Data Entry and Processing Specialist - Amazon Mechanical Turk

Scale AIImageTranscription

Performed remote data entry, verification, and transcription tasks on spreadsheet and proprietary platforms. Completed high-volume projects including transcription and categorization while maintaining strict quality standards. Identified discrepancies and corrected errors to reduce client rework time and support privacy requirements. • Entered and verified 1,200+ records per shift with 100% quality audit pass rate • Transcribed and categorized large datasets 40% faster than the team average • Detected and fixed data discrepancies, saving clients an estimated 120 hours of rework • Followed NDA and privacy protocols when handling sensitive customer and product information

2019 - 2021

Data Entry & Processing Specialist — Amazon Mechanical Turk / Appen (Remote Contract)

AppenTextData Collection

Completed remote, high-volume data entry and verification tasks on spreadsheets and proprietary platforms. Produced fast transcription and categorization outputs for client projects while maintaining quality checks. Identified and corrected data discrepancies to reduce rework for clients. • Entered and verified 1,200+ records per shift with 100% quality audit pass rate • Completed transcription and categorization 40% faster than team average • Corrected discrepancies that saved an estimated 120 hours of rework • Followed NDA and privacy protocols for sensitive information

2019 - 2021

Education

Work History