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Hi, I’m Siti Hasnaningtiyas, a detail-oriented freelancer focused on data annotation, transcription, and content evaluation. I enjoy turning complex data into reliable insights and I’m passionate about supporting AI development with accurate, efficient task execution. I thrive in remote, collaborative environments and bring strong language skills in Indonesian and English, along with a disciplined approach to quality assurance and online research. I’m flexible with hours and committed to NDA-compliant, high-quality results.…Hi, I’m Siti Hasnaningtiyas, a detail-oriented freelancer focused on data annotation, transcription, and content evaluation. I enjoy turning complex data into reliable insights and I’m passionate about supporting AI development with accurate, efficient task execution. I thrive in remote, collaborative environments and bring strong language skills in Indonesian and English, along with a disciplined approach to quality assurance and online research. I’m flexible with hours and committed to NDA-compliant, high-quality results.

Siti Hasnaningtiyas

Data Annotator, QA Engineer, Data Scientist, +3

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Hi, I’m Siti Hasnaningtiyas, a detail-oriented freelancer focused on data annotation, transcription, and content evaluation. I enjoy turning complex data into reliable insights and I’m passionate about supporting AI development with accurate, efficient task execution. I thrive in remote, collaborative environments and bring strong language skills in Indonesian and English, along with a disciplined approach to quality assurance and online research. I’m flexible with hours and committed to NDA-compliant, high-quality results.…Hi, I’m Siti Hasnaningtiyas, a detail-oriented freelancer focused on data annotation, transcription, and content evaluation. I enjoy turning complex data into reliable insights and I’m passionate about supporting AI development with accurate, efficient task execution. I thrive in remote, collaborative environments and bring strong language skills in Indonesian and English, along with a disciplined approach to quality assurance and online research. I’m flexible with hours and committed to NDA-compliant, high-quality results.

Available to hire

Hi, I’m Siti Hasnaningtiyas, a detail-oriented freelancer focused on data annotation, transcription, and content evaluation. I enjoy turning complex data into reliable insights and I’m passionate about supporting AI development with accurate, efficient task execution.

I thrive in remote, collaborative environments and bring strong language skills in Indonesian and English, along with a disciplined approach to quality assurance and online research. I’m flexible with hours and committed to NDA-compliant, high-quality results.

Skills

AI Data Labelling

Data Visualization

Data Science

Experience Level

AI Data Labelling

Expert

Data Visualization

Intermediate

Data Science

Beginner

Language

Indonesian

Fluent

English

Intermediate

Work Experience

Freelance Data Annotator at Appen, DataPlus

August 1, 2025 - November 8, 2025

Completed OCR annotation (image-to-text box labeling) for Indonesian datasets using DataPlus platform, maintaining over 95% task accuracy through quality checks. Performed audio transcription for American English and Indonesian using MatrixGo (Appen). Conducted CPV E-commerce annotation ensuring data quality and accuracy via iTag platform, contributing to project efficiency and reduced error rates.

Quality Assurance (QA) Specialist at OCR Project

September 10, 2025 - December 15, 2025

Ensured data quality by reviewing and correcting annotator work according to strict project guidelines. Improved labeling consistency through targeted feedback on box placement and attribute accuracy. Reduced labeling errors by 15% through consistent QA checks and detailed feedback sessions.

Malay Proofreader at Magic Data

September 15, 2025 - December 31, 2025

Reviewed and proofread Malay transcriptions based on detailed project guidelines, ensuring correct punctuation, capitalization, numbers, and overall text validity. Verified data accuracy and maintained consistency across large batches of transcription files. Completed over 100 proofreading tasks/hours with high accuracy and attention to detail.