Charles O.

Key Skills

Software

Other

Top Subject Matter

B2B data enrichment and AI training datasets

Financial market datasets (XAUUSD) for AI trading

Top Data Types

Text

Audio

Top Task Types

Classification

Freelancer Overview

Data Annotator & Researcher, eCore Services LLC (Trafford, PA). Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and Other. Education includes Bachelor of Pharmacy, Maseno University (2022). AI-training focus includes data types such as Text, Computer Code, and Programming and labeling workflows including Classification, Evaluation, and Rating.

Labeling Experience

AI Algorithm Developer (Independent Project)

Other

Worked on annotation, cleaning, and preparation of historical financial market data to support automated AI trading. Used domain logic to define technical parameters and risk constraints for algorithm execution and evaluation. Conducted evaluation and backtesting oriented preparation to measure performance of trained systems. • Annotated and structured XAUUSD historical datasets • Cleaned data and prepared it for training/evaluation • Translated human risk/logic rules into programmatic constraints • Supported evaluation/backtesting workflows for AI trading

2025 - Present

Data Annotator & Researcher, eCore Services LLC (Trafford, PA)

TextClassification

Provided end-to-end data labeling and annotation for B2B data enrichment and AI training workflows. Verified digital content on AI-driven platforms and evaluated communication model outputs to improve workflow accuracy. Cleaned and prepared raw records into structured, machine-readable formats to support downstream machine learning use cases. • Labeled and annotated datasets for enrichment and AI training • Performed dataset cleaning and formatting to improve structure • Conducted QA checks to ensure labeled data fidelity • Reported findings and helped optimize data pipelines

2022 - 2024

Education

Work History