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Charalampos Vellianitis

Charalampos Vellianitis

AI Data Annotator - Bioinformatics & AI

GREECE flag
LAMIA, Greece
Entry Level

Key Skills

Software

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Top Subject Matter

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Top Data Types

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Top Label Types

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Freelancer Overview

I am an experienced AI data annotator with a strong background in computer science and biomedical informatics. My work includes annotating data for Greek language projects and contributing to AI training datasets with a high degree of accuracy and attention to detail. I am skilled at managing multiple projects simultaneously, meeting tight deadlines, and adapting quickly to new annotation guidelines and tools. My proficiency in English (C2) and German (B1), along with excellent written and verbal communication skills, allows me to effectively collaborate in diverse, international teams. I am comfortable with Microsoft Office and various computer applications, and I consistently prioritize accuracy and efficiency in all my tasks. My experience also includes supporting technical troubleshooting and improving team workflows, which has further strengthened my organizational and problem-solving abilities.

Entry Level

Labeling Experience

No Data Labeling experience added

Charalampos V. hasn’t added any AI Training or Data Labeling experience to their OpenTrain profile yet.

Education

1

1st High School of Evosmos

High School Diploma, General Studies

High School Diploma
2021 - 2024
U

University of Thessaly

Bachelor of Science, Computer Science and Biomedical Informatics

Bachelor of Science
2024

Work History

G

GDCC

Phone Interviewer

N/A
2025 - 2025