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Prosper Chima

Prosper Chima

IT Support and Web Administrator - Technology & Internet

SWITZERLAND flag
Aathal-Seegraeben, Switzerland
$30.00/hrIntermediateData Annotation TechOneformaRemotasks

Key Skills

Software

Data Annotation TechData Annotation Tech
OneFormaOneForma
RemotasksRemotasks
Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

TextText

Top Label Types

Classification
Emotion Recognition
RLHF
Evaluation Rating

Freelancer Overview

I have a strong background in IT support, software development, and technical consulting, with hands-on experience managing and maintaining data-driven applications and web platforms. My work has involved integrating complex systems, migrating and synchronizing data, and ensuring high-quality outcomes through rigorous testing and troubleshooting. I am skilled in Java, Python, SQL, XML, and JSON, and have experience with tools such as Git, SharePoint, Office 365, and Microsoft Teams. My technical expertise, combined with my attention to detail and adherence to best practices, makes me well-equipped to handle data labeling, annotation, and AI training data tasks, ensuring data accuracy and supporting the development of robust AI solutions.

IntermediateEnglishYorubaIgboFrench

Labeling Experience

Text & Sentiment Annotation for LLM Research Studies

Don T DiscloseTextClassificationEmotion Recognition
Participated in multiple academic and industry research projects focused on improving NLP and LLM systems. Tasks included classifying text, labeling sentiment and emotional tone, rating AI-generated responses for quality, relevance, and safety, and selecting preferred outputs in RLHF-style comparisons. Worked with detailed annotation guidelines, handled ambiguous edge cases, and maintained consistency across large batches of samples (hundreds to thousands of items). Each project included built-in quality controls such as attention checks, gold-standard items, and inter-annotator agreement validation. Consistently met accuracy and reliability thresholds required to remain eligible for advanced tasks. This work contributed to training and evaluating machine learning models used in natural language understanding and generation.

Participated in multiple academic and industry research projects focused on improving NLP and LLM systems. Tasks included classifying text, labeling sentiment and emotional tone, rating AI-generated responses for quality, relevance, and safety, and selecting preferred outputs in RLHF-style comparisons. Worked with detailed annotation guidelines, handled ambiguous edge cases, and maintained consistency across large batches of samples (hundreds to thousands of items). Each project included built-in quality controls such as attention checks, gold-standard items, and inter-annotator agreement validation. Consistently met accuracy and reliability thresholds required to remain eligible for advanced tasks. This work contributed to training and evaluating machine learning models used in natural language understanding and generation.

2024

Education

U

University of Bern

Master's Degree, Computer Science

Master's Degree
2023 - 2025
F

Federal University of Technology Owerri

Bachelor of Technology, Information Technology

Bachelor of Technology
2015 - 2020

Work History

K

Krentzel Reinigungsdienste

IT Support & Web Administrator

Zurich
2023 - Present
P

Planon

Technical Development Consultant

Zurich
2022 - 2023