Erick O.

Key Skills

Software

Roboflow

Toloka

Top Subject Matter

Computer Vision (Image/Object Detection)

NLP (Text Classification & Sentiment) and Data QA

Legal Services & Contract Review

Top Data Types

Image

Text

Document

Top Task Types

Object Detection

Freelancer Overview

Freelance AI Data Trainer & Annotation Specialist (Roboflow annotation). Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Roboflow and Toloka. Education includes Bachelor of Commerce, Masai Mara University (2023) and Certified Public Accountant (Intermediate Level), Kabete National Polytechnic (2023). AI-training focus includes data types such as Image and Text and labeling workflows including Object Detection and Entity (NER).

Labeling Experience

Freelance AI Data Trainer & Annotation Specialist (Toloka labeling & QA)

TolokaText

Completed data labeling and quality-assurance tasks on Toloka, including text classification and sentiment analysis for NLP model training. Also produced image tagging annotations and supported crowd-sourced data validation for improved label consistency. Applied meticulous QA to maintain accuracy and produce dependable training data. • Text classification and sentiment analysis • Image tagging • Crowd-sourced validation and QC • Identification of ambiguous or inconsistent labels

2023 - Present

Freelance AI Data Trainer & Annotation Specialist (Roboflow annotation)

RoboflowImageObject Detection

Provided computer-vision annotation for image and object detection workflows on Roboflow, generating bounding boxes, polygons, and classification labels for model training. Performed structured reviews to flag edge cases and ambiguous annotations that could affect downstream performance. Helped maintain reliable, high-quality datasets through ongoing QC aligned to platform standards. • Bounding boxes for object localization • Polygons for finer-grained object boundaries • Classification labels for category assignment • Data-quality checks for inconsistencies and ambiguity

2023 - Present

Education

Work History