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Yusuf Berkay Kapusuz

Yusuf Berkay Kapusuz

Prompt Engineering/LLM Training at Poindexter Labs

Germany flagAachen, Germany
$50.00/hrIntermediateAppenLabelboxLabel Studio

Key Skills

Software

AppenAppen
LabelboxLabelbox
Label StudioLabel Studio
CVATCVAT
MercorMercor
MindriftMindrift
RemotasksRemotasks
Snorkel AISnorkel AI
Other

Top Subject Matter

Math Domain Expertise
Physics Domain Expertise
Engineering Domain Expertise

Top Data Types

AudioAudio
ImageImage
TextText

Top Task Types

Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
Question AnsweringQuestion Answering
Text GenerationText Generation
Computer Programming/CodingComputer Programming/Coding

Freelancer Overview

Prompt Engineering/LLM Training at Poindexter Labs. Brings 11+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Science, Middle East Technical University (2014) and Master of Science, RWTH Aachen (2024). AI-training focus includes data types such as Text and labeling workflows including Prompt + Response Writing (SFT).

IntermediateGermanTurkishEnglish

Labeling Experience

Aether (Outlier)

ImageEvaluation Rating
Image annotation and evalulation.

Image annotation and evalulation.

2026 - Present

Whitebeard (Outlier)

ImageEvaluation Rating
Comparing two responses and writing a justification for your Likert scale selection.

Comparing two responses and writing a justification for your Likert scale selection.

2026 - Present

Rhind Evals (Outlier)

OtherTextEvaluation RatingPrompt Response Writing SFT
Evaluating and comparing math prompts that are in Turkish locale.

Evaluating and comparing math prompts that are in Turkish locale.

2025 - Present

Hickory (Outlier)

ImagePrompt Response Writing SFT
Writing multimodal (image) prompts that will stump the SOTA models. The prompts has to be IQ/Puzzle type.

Writing multimodal (image) prompts that will stump the SOTA models. The prompts has to be IQ/Puzzle type.

2026 - 2026

Riemann (Snorkel)

ImagePrompt Response Writing SFT
Writing olympiad style math prompts that will stump the SOTA models. I worked as an employee of Poindexter Labs in this Snorkel project.

Writing olympiad style math prompts that will stump the SOTA models. I worked as an employee of Poindexter Labs in this Snorkel project.

2026 - 2026

Education

M

Middle East Technical University

Bachelor of Science, Mechanical Engineering

Bachelor of Science
2008 - 2014
R

RWTH Aachen

Master of Science, Automotive Engineering

Master of Science
2024

Work History

F

FNSS Defence Systems

Lead Design Engineer, Brake and Drivetrain

Ankara
2018 - 2024
F

Ford Otosan

Design Engineer, Body in White

Istanbul
2014 - 2016