Jeffertzon Antonio

Jeffertzon Antonio

Data Annotator
Philippines
Filipino (Tagalog), English

About Me

Results-driven Data Processing Associate with over 7 years of experience in image and video annotation, including segmentation, labeling, and quality review. Proven track record of delivering accurate, high-quality datas…

Experience

Tech Specialist (Clinical Labeler)

Bunch Tech Corp.
Jan 2025 - Jan 2026 · 1 year

<p>Worked on two projects within an 8-month period.<br>
Performed image annotation using V7 Darwin.<br>
Accurately annotated each object within images.<br>
Supported training AI systems for automotive applications.<br>
Performed video annotation.<br>
Supported and guided an AI-powered camera system designed for patient monitoring.<br>
Conducted real-time observation of patients.<br>
Ensured accurate data annotation.<br>
Ensured reliable system performance.</p>

Data Annotation Specialist

APPEN · Cavite, Philippines
May 2019 - Aug 2025 · 6 years 3 months

<p>Results-driven Data Processing Associate with over 7 years of experience in image and video annotation, including segmentation, labeling, and quality review. Proven track record of delivering accurate, high-quality datasets for AI and machine learning projects. Promoted to QA Analyst, where I led a team of over 30 members, ensuring strict adherence to guidelines, maintaining quality standards, and meeting project deadlines. Experienced in handling large-scale projects for global clients such as Google and Meta, with a strong focus on detail, efficiency, and continuous process improvement. Adept at problem-solving, team leadership, and maintaining consistency in fast-paced production environments.</p>

Data Processing Associate/QA Analyst

Appen
Jan 2019 - Jan 2025 · 6 years

<p>Promoted from Data Processing Associate to QA Analyst.<br>
Handled content moderation.<br>
Handled image annotation.<br>
Handled audio annotation.<br>
Handled video annotation.<br>
Handled transcription.<br>
Handled LiDAR annotation.<br>
Handled data labeling.<br>
Handled rating.<br>
Handled researcher tasks.<br>
Ensured high-quality outputs by reviewing work.<br>
Maintained accuracy.<br>
Supported team performance.</p>

Receptionist/Waiter/Captain Waiter

Classic Savory
Jan 2015 - Jan 2016 · 1 year

<p>Full-time Receptionist and Waiter responsible for front desk operation.<br>
Provided customer service.<br>
Handled orders.<br>
Handled events.<br>
Handled reservations.<br>
Promoted from Waiter to Captain Waiter.<br>
Supervised staff.<br>
Ensured excellent customer service.<br>
Handled guest concerns.<br>
Oversaw daily dining operations.</p>

Receptionist/Waiter

House+ Co.
Jan 2013 - Jan 2014 · 1 year

<p>Full-time Receptionist and Waiter responsible for front desk operation.<br>
Provided customer service.<br>
Handled orders.<br>
Handled events.<br>
Handled reservations.</p>

Waiter (Part-time)

Alexis (Bristo and Wine Bar)
Jan 2013 - Jan 2014 · 1 year

<p>Part-time Waiter responsible for front desk operation.<br>
Provided customer service.<br>
Handled orders.</p>

PROJECTS

Annotation

APPEN · N/A
Duration : 23-May-2019 - 26-Aug-2025

<p>Worked on large-scale AI and machine learning projects focused on training data development through image and video annotation. Tasks included segmentation, bounding boxes, labeling, and transcription to support computer vision and AI models. Ensured high accuracy and consistency by strictly following client guidelines for global companies such as Google and Meta. Promoted to QA Analyst, where I handled quality assurance by reviewing annotated data, identifying errors, and improving overall team performance. Supported and guided a team of 30+ members, ensuring high-quality deliverables and meeting tight project deadlines in a fast-paced production environment.</p>

Skills

Adobe AI/RPA Development Graphic and Visual Design Data Annotation Labeling Image Annotation Video Annotation Segmentation Data Processing Quality Assurance Attention to Detail Accuracy Leadership Collaboration Customer Service Communication Time Management Multitasking Photoshop Illustrator Premiere Pro InDesign After Effects Photography
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