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Mas Ruhan

Mas Ruhan

Full Stack Developer - Cybersecurity and Government Services

INDONESIA flag
Kota Depok, Indonesia
$8.00/hrIntermediateAppenClickworkerData Annotation Tech

Key Skills

Software

AppenAppen
ClickworkerClickworker
Data Annotation TechData Annotation Tech
MercorMercor
OneFormaOneForma
TelusTelus
CVATCVAT

Top Subject Matter

No subject matter listed

Top Data Types

Computer Code ProgrammingComputer Code Programming
DocumentDocument
ImageImage
TextText

Top Label Types

Classification
Computer Programming Coding
Prompt Response Writing SFT
Translation Localization

Freelancer Overview

With over 7 years of experience in secure software development and cybersecurity, I have a strong foundation in handling sensitive data and ensuring data integrity—skills that are essential for high-quality data labeling and AI training data projects. My background includes working with government systems, conducting vulnerability assessments, and implementing secure coding practices, which has given me a keen eye for detail and accuracy. I am proficient in both backend and frontend technologies such as Laravel, Vue.js, PHP, and MySQL, and have hands-on experience developing and maintaining secure digital infrastructures. I am confident in my ability to support data annotation tasks, ensure data quality, and contribute to AI projects that require meticulous attention to security and accuracy.

IntermediateEnglish

Labeling Experience

CVAT

Audio Data Labeling & Voice AI Specialist

CVATAudioAudio Recording
Worked on audio data labeling and voice dataset preparation projects for AI speech models. Performed audio recording, transcription validation, speaker intent tagging, and quality review for conversational AI and speech recognition (ASR) systems. Ensured clarity, pronunciation accuracy, background noise compliance, and alignment with project guidelines. Conducted annotation of audio segments, speaker role identification, and error correction for model training datasets. Participated in QA review cycles to maintain high annotation accuracy and consistency across batches. Experienced in working with structured annotation guidelines, meeting turnaround deadlines, and delivering production-ready audio datasets for machine learning training pipelines.

Worked on audio data labeling and voice dataset preparation projects for AI speech models. Performed audio recording, transcription validation, speaker intent tagging, and quality review for conversational AI and speech recognition (ASR) systems. Ensured clarity, pronunciation accuracy, background noise compliance, and alignment with project guidelines. Conducted annotation of audio segments, speaker role identification, and error correction for model training datasets. Participated in QA review cycles to maintain high annotation accuracy and consistency across batches. Experienced in working with structured annotation guidelines, meeting turnaround deadlines, and delivering production-ready audio datasets for machine learning training pipelines.

2025 - 2025

Education

S

Sekolah Tinggi Sandi Negara (STSN)

Bachelor's Degree, Cybersecurity and Cryptography

Bachelor's Degree
2014 - 2018

Work History

N

National Cyber and Crypto Agency

Full Stack Developer and Cybersecurity Specialist

Jakarta
2020 - Present
N

National Cyber and Crypto Agency

Cybersecurity Specialist

Jakarta
2018 - 2020