For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
Leon Sieben

Leon Sieben

Data Scientist - Computer Science Bachelor

GERMANY flag
Sankt Augustin, Germany
$30.00/hrIntermediateOtherLabelbox

Key Skills

Software

Other
LabelboxLabelbox

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
Computer Code ProgrammingComputer Code Programming
ImageImage
TextText
VideoVideo

Top Label Types

Audio Recording
Bounding Box
Classification
Computer Programming Coding
Evaluation Rating
Function Calling
Prompt Response Writing SFT

Freelancer Overview

I am currently pursuing a Bachelor of Science in Computer Science and have developed strong analytical and technical skills that are well-suited to data labeling and AI training data roles. My experience includes internships and voluntary work, where I demonstrated attention to detail and the ability to follow complex instructions—essential qualities for high-quality data annotation. I am proficient in Python, Java, SQL, and have a solid foundation in HTML/CSS, allowing me to efficiently work with various data formats and annotation tools. With business-fluent English and native German language skills, I am comfortable handling multilingual datasets and collaborating in diverse teams. I am eager to contribute to projects in areas such as computer vision or natural language processing, leveraging my technical background and commitment to data accuracy.

IntermediateEnglishGermanFrench

Labeling Experience

Labelbox

Data Annotation / Labeling

LabelboxAudioBounding BoxComputer Programming Coding
Several Projects where I f.e had to label boxes and adjust them from a screenshot, code for an LLM and label / review ongoing tasks for trigger functions

Several Projects where I f.e had to label boxes and adjust them from a screenshot, code for an LLM and label / review ongoing tasks for trigger functions

2025

Data Annotation

OtherTextPrompt Response Writing SFT
Had to label and Annotate Data which was generated by an AI to help it make less errors.

Had to label and Annotate Data which was generated by an AI to help it make less errors.

2025 - 2025

Education

H

Hochschule Bonn-Rhein-Sieg (University of Applied Sciences)

Bachelor of Science, Computer Science

Bachelor of Science
2022 - 2025
S

Städisches Gymnasium Hennef (SGH)

Technical College Entrance Qualification, General Technical Studies

Technical College Entrance Qualification
2013 - 2021

Work History

A

ASB - Arbeiter Samariter Bund

Voluntary Social Year Participant

Troisdorf
2021 - 2021
E

Einmahl Websolution

Intern

Cologne
2018 - 2018