John Marisa

Key Skills

Software

Appen

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 a detail-oriented researcher with a strong background in data analysis, scientific research, and technical reporting. My experience includes conducting advanced spectroscopic and analytical techniques (NMR, FTIR, HPLC, GC-MS), optimizing experimental protocols, and collaborating on multidisciplinary projects in chemistry and materials science. I am proficient in Python, MATLAB, and R for data analysis and simulations, and have contributed to technical publications and reports. My work requires precision, consistency, and a keen eye for data quality, all of which are essential for data labeling and annotation tasks in AI and machine learning projects. I am eager to apply my analytical skills and scientific rigor to support high-quality training data development for AI applications.

Labeling Experience

Freelance Data Labeler & AI Trainer

AppenImageClassification

Responsible for performing high-volume data labeling tasks supporting AI training and machine learning model development. Labeled images, text, and audio datasets according to rigorous project guidelines and accuracy targets. Maintained quality benchmarks and ensured the delivery of consistent, high-quality labeled data to stakeholders. • Image, text, and audio classification for AI models • Consistently met project accuracy and quality standards • Collaborated remotely via freelancing/task platforms • Adapted to varied annotation and labeling guidelines

Responsible for performing high-volume data labeling tasks supporting AI training and machine learning model development. Labeled images, text, and audio datasets according to rigorous project guidelines and accuracy targets. Maintained quality benchmarks and ensured the delivery of consistent, high-quality labeled data to stakeholders. • Image, text, and audio classification for AI models • Consistently met project accuracy and quality standards • Collaborated remotely via freelancing/task platforms • Adapted to varied annotation and labeling guidelines

2022

Education

Work History